STEREO CD CASSETTE DECK RECEIVERXR-A770 ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan ... XR-A770/MYXJ and NVXJ are constructed the …

ORDER NO.

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER ELECTRONIC CORPORATION 1998

RRV2054

CONTENTS

T – ZZK NOV. 1998 Printed in Japan

1. SAFETY INFORMATION ...................................... 2

2. EXPLODED VIEWS AND PARTS LIST ................ 3

3. SCHEMATIC DIAGRAM ..................................... 14

4. PCB CONNECTION DIAGRAM .......................... 31

5. PCB PARTS LIST ............................................... 44

6. ADJUSTMENT .................................................... 49

7. GENERAL INFORMATION ............................... 55

7.1 PARTS ......................................................... 55

7.1.1 IC ......................................................... 55

7.1.2 DISPLAY.............................................. 61

7.2 DISASSEMBLY ........................................... 63

7.3 BLOCK DIAGRAM ....................................... 66

8. PANEL FACILITIES AND SPECIFICATIONS .... 68

STEREO CD CASSETTE DECK RECEIVER

XR-A770

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

TypeModel

Power Requirement RemarksXR-A770

MYXJ AC220-230V

NVXJ AC230V

2

XR-A770

Printed on the Rear Panel

NVXJ Type

MYXJ Type

MYXJ Type

LABEL CHECK

Additional Laser Caution1. Laser Interlock Mechanism

The position of the switch (S8501) for detecting loadingstate is detected by the system microprocessor, andthe design prevents laser diode oscillation when theswitch (S8501) is pressed physically.Thus, the interlock will no longer function if the switch (S8501)is released physically and deliberatery.The interlock also does not function in the test mode ∗.Laser diode oscillation will continue, if pin 62 ofLA9240ML (IC8101) on the CD ASSY mounted on the$M Loading Mechanism assembly is connected to GND,or else the terminals of Q8101 are shorted to each other(fault condition).

2. When the cover is opened, close viewing of the objectivelens with the naked eye will cause exposure to a Class1 laser beam.

∗ : Refer to page 54.

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trainedto properly and safely repair complex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and mayvoid the warranty. If you are not qualified to perform the repair of this product properly and safely, youshould not risk trying to do so and refer the repair to a qualified service technician.

IMPORTANTTHIS PIONEER APPARATUS CONTAINSLASER OF CLASS 1.SERVICING OPERATION OF THE APPARATUSSHOULD BE DONE BY A SPECIALLYINSTRUCTED PERSON.

LASER DIODE CHARACTERISTICSMAXIMUM OUTPUT POWER: 1.3 mWWAVELENGTH: 790 nm ± 25 nm

3

XR-A770

VOLKARAOKE

SFCDISC

DISC

DISC

CLEAR

STATIONREMOTE CONTROL UNIT CU-XR025

MONO

BAND

PGM

REPEATRANDOM

AUX

P.BASSDISPLAY

SLEEPPOWER

6

1

3

7

9(1/2)

8(1/2)

8(2/2)

9(2/2)

10

213

14

11

15

4

5

1819

16

MYXJ Type Only

MYXJ Type Only

MYXJType Only

MYXJType Only

NVXJ Type Only

1713

9

12

2.1 PACKING

1 FM Antenna ADH70052 Operating Instructions XRE3014

(English/French)3 AM Loop Antenna XTB30014 Remote Control Unit XZN3007

(CU-XR049)

5 Battery Cover AZA7204NSP 6 Dry Cell Battery (R6P, AA) VEM-013

7 Polyethylene Bag Z21-038(0.03 × 230 × 340)

8 Front Pad See Contrast table (2)

9 Rear Pad See Contrast table (2)

(1) PACKING PARTS LISTMark No. Description Part No.

2. EXPLODED VIEWS AND PARTS LISTNOTES: • Parts marked by "NSP" and can not be supplied.

• The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

• Screws adjacent to mark on the product are used for disassembly.

10 Packing Case See Contrast table (2)11 Packing Sheet AHG7049

12 Fuse (T5A) See Contrast table (2) 13 Power Cord See Contrast table (2)NSP 14 Polyethylene Bag See Contrast table (2)

15 Operating Instructions XRE3016(English/French/German/Italian/Dutch/Swedish/Spanish/Portuguese/Chinese)

NSP 16 Door Spacer XHG3002NSP 17 Warranty Card ARY7022

18 Operating Instructions See Contrast table (2)19 Operating Instructions See Contrast table (2)

Mark No. Description Part No.

(2) CONTRAST TABLEXR-A770/MYXJ and NVXJ are constructed the same except for the following :

Mark No. Symbol and DescriptionPart No.

RemarksXR-A770 XR-A770/MYXJ /NVXJ

8 Front Pad XHA3005 XHA30099 Rear Pad XHA3006 XHA3010

10 Packing Case XHD3050 XHD307012 Fuse (T5A) Not used AEK101613 Power Cord ADG1154 ADG1156

NSP 14 Polyethylene Bag AHG7033 Not used18 Operating Instructions (Italian/German/Dutch) XRC3003 Not used19 Operating Instructions XRC3004 Not used

(Portuguese/Swedish/Spanish)

4

XR-A770

2.2 EXTERIOR (1/2)

212

12

Note :Attatch on the same numbers × three.

Refer to"2.5 $M MECHANISM CD".

Note :Hook Tray cap on top of loading tray and then insert the bottom three hooks.

9

9

11

15

11

15

11

1

6

10

4

5

7

14

13

3

3

9

8

1716

18

18

5

XR-A770

• EXTERIOR (1/2) PARTS LISTMark No. Description Part No.

1 22P F.F.C/30V XDD3018NSP 2 $M Mechanism CD XXA3006

3 Volume Knob XAA30054 FL Cover A XAK30265 FL Cover B XAK3036

6 Tray Cap XZN30477 Display Panel XAK30498 Bonnet Case XZN30409 Screw BPZ30P100FZK

10 Pioneer Badge XZN3049

11 Screw VBT30P080FZK12 Disc Label XAX312713 Jog Knob Assy XXG302314 Bass Knob XAB300515 Screw BCZ30P080FZK

NSP 16 Cord Stopper DNF112817 Push Rivet AEC713818 Cushion Rubber XEB3002

6

XR-A770

2.3 EXTERIOR (2/2)

b

b

d

a

a

a

aa

a

a

b

b

b

b

b

b

c

c

c

c

aa

Refer to"2.4 FRONT PANEL SECTION".

8

17

1919

19

29

22

7

11

33

19

19

13

27

35

27

16

34

30

38

28

28

2

3

5

4

9

10

14

15

25

36

21

19

18

20

1

19

24

24

19

26

23

24

19

2424

24

11

22

39

40

12

43 NVXJ Type only

41

MYXJ Type only

42

MYXJ Type only

NVXJ Type only

7

XR-A770

(1) EXTERIOR (2/2) PARTS LISTMark No. Description Part No.

1 AF Assy XWZ3120 2 SECONDARY Assy XWZ3121 3 PRIMARY Assy XWZ3152

4 FM/AM TUNER MODULE AXQ7068 5 Power Transformer (T1) XTS3018

6 • • • • • 7 Fuse (FU1 : T4A) AEK1060NSP 8 Chassis XNA3001

9 DC Fan Motor AXM700310 Fan Plate ANG7153

11 PCB Bracket XNG300612 Ceramic Capacitor CKPUYB102K5013 Heat Sink XNH300414 Wire Clip A XEC300315 Rear Panel XNC3012

16 Cord Stopper DNF1128NSP 17 SUPPORT Assy XNP3009

18 Screw BBZ30P140FMC19 Screw VBZ30P080FZK

NSP 20 Tweeter Cover XAK3069

21 Screw ASZ40P060FMC22 Binder ZCA-SKB90BK23 Earth Plate XNG301524 Screw BPZ30P100FZK25 Screw BBZ30P300FMC

NSP 26 Name Label See Contrast table (2)27 Screw BBZ30P060FMC28 Screw IBZ30P135FMC

29 SUB TRANS Assy XWZ3139 30 REAR AMP Assy XWZ3122

31 • • • • •32 • • • • •33 H.S.Bracket XNG300734 FET Bracket XNG300935 H.S.Support XNG3014

36 Wire Clip B XEC300437 • • • • •38 Mica Sheet XEE300239 Locking Spacer XEC300940 Card Spacer XEC3008

41 Caution Label HE See Contrast table (2)42 Caution Label See Contrast table (2)43 Caution Label See Contrast table (2)


(2) CONTRAST TABLEXR-A770/MYXJ and NVXJ are constructed the same except for the following :

Mark No. Symbol and DescriptionPart No.

RemarksXR-A770 XR-A770/MYXJ /NVXJ

NSP 26 Name Label Not used XAL301241 Caution Label HE PRW1233 Not used42 Caution Label VRW1094 Not used43 Caution Label Not used PRW1018

8

XR-A770

2.4 FRONT PANEL SECTION

1717

26

32

23

15

18

19

21

213330

31

27

13

14

16

25

2435

2

1

6

7 17

8

36

34(2/2)34(1/2)

3720

28

4443

45

17

6

38

Refer to"2.7 MECHANISM UNIT".

40

12

17

17

10

46 9

17

3

5

42

A

A

9

XR-A770

• FRONT PANEL SECTION PARTS LISTMark No. Description Part No. Mark No. Description Part No.

1 DISPLAY Assy XWZ3123 2 CD SW LED Assy XWZ3131 3 SUB DISPLAY Assy XWZ3112

4 • • • • •NSP 5 Cord With Plug DE007VE0

6 Flexible Cable 14P XDD30117 Flexible Cable 19P XDD30098 Flexible Cable 38P XDD30049 Connector Assy 3P XDE3013

10 Connector Assy 5P XDE3014

11 • • • • •12 Mechanism Unit XYM300313 Door Spring L XBH300114 Door Spring R XBH300215 Latch Spring L ABH7130

16 Latch Spring R ABH713117 Screw BPZ30P100FZK18 Latch Mold L XMR300119 Latch Mold R XMR3002

NSP 20 Jog Lens XAK3025

21 Damper Assy AXA705222 • • • • •

NSP 23 Front Panel Assy XXG301624 Function Button XZN302025 CD Button XZN3018

26 CD Lens XZN303727 Deck Lens L XZN303528 Deck Lens R XZN303629 • • • • •30 Door Pocket L XZN3013

31 Door Pocket R XZN301532 Front Panel A XZN301133 Sub Panel A XZN304134 Power Button XZN302235 Play Button XZN3024

36 S.C. Button XZN302537 TIMER Button XZN302938 Sub Buttun XAD301239 • • • • •40 Diffusion Sheet XAK3035

41 • • • • •42 Button Lens XAK3043

NSP 43 Front Panel Assy B XXG302644 Sub Panel B XZN305245 Front Panel B XZN3050

46 Binder ZCA-SKB90BK

10

XR-A770

2.5 $M MECHANISM CD8

7

14

13

12 26

15

21 25

22

24

23

11

52

1

10

16

1829

29 6

17

19

Refer to "2.6 SERVO MECHANISM ASSY".

9

3

29

29

29

27

28

29

29

29

29

30

11

XR-A770

• $M MECHANISM CD PARTS LIST


1 MOTOR Assy AWZ8428NSP 2 SW Assy AWZ8429 3 CD Assy XWZ3141

4 • • • • •5 Servo Spring ABH7126

6 Belt AEB70727 Clamp Magnet AMF70018 Yoke ANB70679 Mecha Base ANW7125

10 Loading Tray ANW7088

11 Servo Base ANW708912 Rotary Tray ANW711313 Clamper ANW709114 Clamper Holder ANW709215 Main Cam ANW7093

16 Gear Pully ANW709417 Lock Lever ANW709518 Planet Gear ANW709619 Actuater ANW709720 • • • • •

21 15P F.F.C/30V ADD703822 Connector Assy (6P) ADE701023 Float Rubber A AEB706324 Float Rubber B AEB706625 Servo Mechanism Assy AXA7039

26 Screw IPZ30P080FMC27 Carriage Motor VXM103328 Motor Pulley PNW163429 Ha Narl GEM101630 Cushion Rubber XEB3003

1 Servo Mechanism AXA70392 SPINDLE MOTOR Assy AEA70093 SLEAD MOTOR Assy AEA70104 Gear A AEA70135 Gear B AEA7014

6 Screw AEA70157 Screw AEA70168 Screw AEA70179 Screw AEA7018

10 Leaf Switch AEA7011


• SERVO MECHANISM ASSY PARTS LIST

2.6 SERVO MECHANISM ASSY

1

9

9

9

7

4

5

8

6

3

2

10

9

12

XR-A770

2.7 MECHANISM UNIT

1

10

13

12

Mech. Ι

Mech. ΙΙ

Mech. ΙΙ

Mech. Ι

Mech. ΙΙOnly

Mech. ΙOnly

Mech. ΙΙOnly

2

9

4

3

7

13

XR-A770

5

11

8

6


• MECHANISM UNIT PARTS LIST

1 Plate HD BLK (Mech. Ι) F513-8192 Plate HD BLK (Mech. ΙΙ) F513-8113 Motor Main BLK (Mech. ΙΙ only) F525-3244 PCB Control BLK F567-6215 Clutch Assy BLK F522-037

6 Main Belt FF17G-317 Joint Belt 113 (Mech. ΙΙ only) FF19D-218 Clutch Assy BLK F522-0459 Roller Pinch BLK R F514-129

10 Roller Pinch BLK L F514-130

11 F/R Belt FF18W-1212 Plate Base BLK F512-12713 Plate Base BLK F512-128

XR-A770

14

A

B

C

D

1 2 3 4

1 2 3 4

1/3AF ASSY (XWZ3120)

DISPLAY ASSY (XWZ3123)

SERVO MECHANISM ASSY (AXA7039)

E

CD ASSY(XWZ3141)

CN8001 CN8002

DECK MECHA

B

I

SUB DISPLAY ASSY (XWZ3112)

K

FM/AMTUNER MODULE(AXQ7068)

A

E 3/3E

3. SCHEMATIC DIAGRAM3.1 OVERALL WIRING DIAGRAM

XR-A770

15

A

B

C

D

5 6 7 8

5 6 7 8

CN8003

REAR AMP ASSY(XWZ3122)

L

SECONDARYASSY(XWZ3121)

F

CD SW LEDASSY(XWZ3131)

J

PRIMARYASSY(XWZ3152)

G

SUB TRANSASSY(XWZ3139)

H

MOTORASSY(AWZ8428)

C SW ASSY(AWZ8429)D

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".

XR-A770

16

A

B

C

D

1 2 3 4

1 2 3 4

FM/AM TUNER MODULE(AXQ7068)A

RF AMP

MIX AMP

BUFFER

IF AMP

PLL

FM +B SW

AM RF TUNING BLOCK

OSC

3.2 FM/AM TUNER MODULE

A

XR-A770

17

A

B

C

D

5 6 7 8

5 6 7 8

2/3E

CN

3051

AF AMP

REGULATOR

AF AMP

A

XR-A770

18

A

B

C

D

1 2 3 4

1 2 3 4

B CD ASSY

SERVO MECHANISM ASSY AXA7039

C MOTOR ASSY(AWZ8428)

J8502D20PWW0405E

56k

R81

23

CARRIAGE MOTOR

(XWZ3141)

3.3 CD, MOTOR and SW ASSEMBLIES

B C

XR-A770

19

A

B

C

D

5 6 7 8

5 6 7 8

DSW ASSY(AWZ8429)

C83

7110

0/10

L837

1 4

7µH

J8502

21CN8005- Pin 1 :PLAY MODE (RF)

VREF:CN8005- Pin3

VREF

1.8Vp-p

CN8005- Pin 2 :TEST MODE,Tracking Open(TRER)

1.0Vp-p

H : 500nsec/div

H : 5msec/div

VREF

1

2

Note: The encircled numbers denote measuring point in the schematic diagram.

2/3E

CN

1052

C82570.1

2SD1858X 2SD1858X

2SB1237X 2SB1237X

0.04

7

C8256 0.1

C8255 0.1

YB

YB

C83081000p

C83071000p

0.04

7

B D

XR-A770

20

A

B

C

D

1 2 3 4

1 2 3 4

3.4 AF ASSY (1/3)

1/3AF ASSY (XWZ3120)

: DECK PB SIGNAL ROUTE

E

(PB)

: DECK REC SIGNAL ROUTE(REC)

(PB)

(PB)

(PB)

(PB

)

(PB

)

(REC)

(REC)

(REC) (REC)

(REC)

(RE

C)

(RE

C)

(PB)

22k

22k

0.02

2

C23

230.

022

33k

33k

220k

220k

0.01

47p

47p

47p

47p

1/3E

XR-A770

21

A

B

C

D

5 6 7 8

5 6 7 8

2/3E

2/3E

2/3E

(REC)

(REC)

(REC)

(REC)

(REC)

(PB)

(PB)

(PB

)

(PB

)

(PB) (PB)

(PB)

22k

22k

IC2101(2/2)BA4558F–HT

IC2101(1/2)BA4558F–HT

1/3E

XR-A770

22

A

B

C

D

1 2 3 4

1 2 3 4

3.5 AF ASSY (2/3)

XKB3002

R3019,R3020XR-A880 : 1.8kXR-A770 : 3.9k

BA4558F-HT

BA4558F-HT

BA4558F-HT

22p

1

680k

1.8k

150k

3/3E

CN83HCN5501I

CN8004B

(TA)(TA)(TA)

(TA

)

(CD

)

(CD)(CD)

(CD

)

(CD)

(PB)

(PB)(PB)(PB)

(PB

)(P

B)

(PB

)

(B) (B)

(B)

(B)

(B)

(C)

(T)

(C)

(C)

(C)

(C)

(B)(B)

(B)(B)

(F/W)

(F/W

)

(B)

(B)

(F/W

)

(F/W) (F/W)

(B)

(C)

(S/T)(S/T)

(S/T

)(S

/T)

(S/T

)

(T)(T)

2/3E

XR-A770

23

A

B

C

D

5 6 7 8

5 6 7 8

BA4558F-HTBA4558F-HT

1SS133

1SS

133

BA4558F-HT

0.01

0.01

6.8k

6.8k

0.033

1SS133

0.033

0.01

50.

015

BA4558F-HT

BA4558F-HT

BA4558F-HT

1SS

355

BA4558F-HT

BA4558F-HT

4.332MHz

2/3 AF ASSY (XWZ3120)

3/3

: AUDIO SIGNAL ROUTE

E

3/3E

3/3E

3/3E

3/3E

E

: CD AUDIO SIGNAL ROUTE(CD)

: CENTER SIGNAL ROUTE(C)

: SURROUND/TWEETER SIGNAL ROUTE(S/T)

: FRONT/WOOFER SIGNAL ROUTE(F/W)

: PRO LOGIC SIGNAL ROUTE(PRO)

: PRO LOGIC SIGNAL ROUTE(B)

: TUNER AUDIO SIGNAL ROUTE(TA)

: DECK PB SIGNAL ROUTE(PB)

: DECK REC SIGNAL ROUTE(REC)

3/3E

1/3E

CN6201A

(TA

)

(TA)

(PB

)(P

B)

(RE

C)

(RE

C)

(PB)

(B)

(B)

(B)

(B)

(B)

(B)

(B)

(B)

(B)

(W)

(W)

(W)

(W)(W)

(W)

(W)

(W)

(B)

(B)

(F/W) (F/W)

(F/W) (F/W)

(B)

(B)

(B)

(B)

(C) (C)

(C)

(S/T)

(S/T)(S/T)

(T)

(T)

(T)

(T)

(T)(T)

(T)(T)

2/3E

XR-A770

24

A

B

C

D

1 2 3 4

1 2 3 4

3.6 AF (3/3) and SECONDARY ASSEMBLIES

2/3E

2/3E

2/3E

J3401L

BA4558F-HT

BA4558F-HT

0.15/50

0.15/50

5.6k

5.6k10k

10k

0.47

/50

D3674

U1GC44D3673

0.47

/50

1/2

2/2

2/3E

2/3E

100k

470p

470p

100k

100k

100k

1/2

2/2

BA4558F-HT

2SC5200(P)

BA4558F-HT



: FRONT/WOOFER SIGNAL ROUTE(F/W)

(C)

(C)

(C)

(S/T)

(S/T)

(S/T)

(C)(C)

(S/T)

(S/T)

(S/T)

(S/T)(C)

(C)

(C)

(S/T

)

(F/W)(F/W)

(F/W)

(F/W)

(F/W) (F/W)

(F/W) (F/W)

(F/W

) (F/W

)

3/3E

XR-A770

25

A

B

C

D

5 6 7 8

5 6 7 8

3/3 AF ASSY (XWZ3120)E

XKN3002

2SA1037K

F SECONDARY ASSY(XWZ3121)

PO

WE

R T

RA

NS

FO

RM

ER

100 FL

100 FL

JP

JP

JP

JP

(C) (C)

(C) (C)

(S/T) (S/T)

(S/T)

(S/T) (T)

(F/W)

(F/W)

(F/W)(F/W) (F/W)

(F/W

)(F

/W)

(F/W)(F/W)

(F/W)

(F/W)

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491010F MFD, BY LITTELFUSE INK. FOR IC11, 12 (AEK7068).

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.400 MFD, BY LITTELFUSE INK. FOR IC23 (AEK7004).


CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491002 MFD, BY LITTELFUSE INK. FOR IC33 (AEK7013).


CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491005 MFD, BY LITTELFUSE INK. FOR IC41 (AEK7019).

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491007 MFD, BY LITTELFUSE INK. FOR IC21, 22, 31 (AEK7021).

3/3E F

XR-A770

26

A

B

C

D

1 2 3 4

1 2 3 4

H SUB TRANS ASSY (AWZ3139)

J81

G PRIMARY ASSY (XWZ3152)

2/3E

1000

0p/2

50POWER TRANSFORMER

3.7 PRIMARY and SUB TRANS ASSEMBLIES

G H

XR-A770

27

A

B

C

D

5 6 7 8

5 6 7 8

AN

1

LIVE

NEUTRAL

AEK1060(T4A)

• NOTE FOR FUSE REPLACEMENTFOR CONTINUED PROTECTION AGAINST RISK OF FIRE.REPLACE WITH SAME TYPE AND RATINGS ONLY.

CAUTION -

H

XR-A770

28

A

B

C

D

1 2 3 4

1 2 3 4

3.8 DISPLAY and CD SW LED ASSEMBLIESDISPLAY ASSY (XWZ3123)

I

D5551,D55521SS181

DISPLAY ASSYS5911 : DISPLAYS5912 : TIMER/CLOCK ADJS5913 : ENTERS5914 : BALANCES5915 : ZOOM SURROUNDS5916 : BASS BLASTERS5917 : EQUALIZERS5918 : PRESETS5919 : STANDBY/ONS5920 : TUNING –S5921 : TUNING +S5922 : STOP ( )S5923 : PLAY/PAUSES5924 : REC/STOPS5925 : FREQ/STATIONS5926 : Dolby NR ON/OFFS5927 : ASES/COPYS5928 : AUXS5929 : TAPE Ι / ΙΙS5930 : TUNER/BANDS5931 : CDS5951 : VOLUMES5952 : SOUND MORPHING JOG

Function

I

XR-A770

29

A

B

C

D

5 6 7 8

5 6 7 8

CD SW LED ASSY(XWZ3131)

CN5401

CN51022/3

J

K

E

D5553,D55541SS181

D5555,D55561SS181

D5557–D55601SS181

D5561–D55681SS181

1k

CN550252045–1445

CN550152045–3845

CN290152045–1945

DE

CK

ME

CH

A

CD SW LED ASSYS5937 : OPEN/CLOSE ( )S5938 : DISC CHANGES5939 : DISC-3S5940 : DISC-2S5941 : DISC-1

I J

XR-A770

30

A

B

C

D

1 2 3 4

1 2 3 4

D54

11,D

5412

L REAR AMP ASSY (XWZ3122)

K SUB DISPLAY ASSY(XWZ3112)

CN34013/3E

CN5502I


(C)

(C)

(C) (C)

(C)

(C)

(S/T)

(S/T

)

(C)

(C)

(S/T)(S/T)

(S/T

)(S

/T)

(S/T) (S/T) (S/T)

(S/T

)


SUB DISPLAY ASSYS5401 : 60Hz level controlS5402 : 120Hz level controlS5403 : WOOFER level controlS5404 : P.BASS ON/OFF

3.9 SUB DISPLAY and REAR AMP ASSEMBLIES

K L

XR-A770

31

A

B

C

D

1 2 3 4

1 2 3 4

NOTE FOR PCB DIAGRAMS :1. Part numbers in PCB diagrams match those in the schematic diagrams.2. A comparison between the main parts of PCB and schematic diagrams is shown below.

3. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram.4. View point of PCB diagrams.Symbol In PCB

DiagramsSymbol In SchematicDiagrams

Part Name

B C E

D

D

G

G

S

S

B C E

B C E

D G S

B C E B C E

B C E

Transistor

Transistorwith resistor

Field effecttransistor

Resistor array

3-terminalregulator

CapacitorConnector

P.C.Board Chip Part

SIDE A

SIDE B

4. PCB CONNECTION DIAGRAM

4.1 REAR AMP ASSY

L

(XNP3009-B)

CN3401EREAR AMPASSY

L

REAR AMP ASSYL

(XNP3009-B)

SIDE A

SIDE B

XR-A770

32

A

B

C

D

1 2 3 4

1 2 3 4

4.2 CD, MOTOR and SW ASSEMBLIES

SW ASSYD

MOTORASSY

C

CD ASSYB

CN1052E

PICKUPASSY

LOADINGMOTOR

SERVOMECHANISMASSY

(ANP7144-E)

Q8101

Q8254

Q8252

Q8251

Q8253

M

SIDE A

B C D

XR-A770

33

A

B

C

D

1 2 3 4

1 2 3 4

B C DSIDE B

SW ASSYD

MOTOR ASSYC

CD ASSYB (ANP7144-E)

IC8201

IC8101

IC8301

XR-A770

34

A

B

C

D

1 2 3 4

1 2 3 4

4.3 AF ASSY

CN83H

FAN MOTOR

J11

J11F

VR280

Q3081 Q3081 Q54IC32 Q51 Q52 Q57IC23

Q21 Q22 Q34 Q31 IC42 IC51 IC

AF ASSYE

E

XR-A770

35

A

B

C

D

5 6 7 8

5 6 7 8

CN5501I

CN6201A

J3401L

MECHANISM UNIT

CN8004B

(XNP3009-B)VR2301-VR2306VR2802 VR2801

IC2301Q51 Q52 Q57 Q2801 Q2804

IC3301 Q2802IC51 IC3331 E

SIDE A

XR-A770

36

A

B

C

D

1 2 3 4

1 2 3 4E

SIDE B

IC5892Q2802

Q2306

Q3607Q2805-Q2807

Q2105 Q2104 IC2201 Q5751 IC3

Q2203 Q2204Q3311-Q3314

Q5752IC2101

Q2301Q3622 Q3611 Q3606 Q3605

Q3353 Q3354Q2103 IC5751 IC5751 IC3

IC5891

AF ASSYE

XR-A770

37

A

B

C

D

5 6 7 8

5 6 7 8E

(XNP3009-B)

5751 Q3101 Q3102 IC3001IC3101-IC3103

Q2203 Q2204 Q56 Q53 Q553311-Q3314

Q57525751 IC5751 IC3381

IC34 Q33Q3401-Q3403 IC3201-IC3203 Q3202 Q3201

XR-A770

38

A

B

C

D

1 2 3 4

1 2 3 4

4.4 SECONDARY ASSY

(XNP3009-B)

IC41

IC71

IC21

IC22IC31

Q71

J11E

T1

PO

WE

R T

RA

NS

FO

RM

ER

SECONDARY ASSYF

SECONDARY ASSYF

F

SIDE A

SIDE B

XR-A770

39

A

B

C

D

1 2 3 4

1 2 3 4HG

4.5 PRIMARY and SUB TRANS ASSEMBLIES

(XNP3013-B)

J81E

AC IN

T1POWER TRANSFORMER

PRIMARYASSY

G

SUB TRANS ASSYH

LIV

E

NE

UT

RA

L

SIDE A

XR-A770

40

A

B

C

D

1 2 3 4

1 2 3 4

4.6 DISPLAY and CD SW LED ASSEMBLIES

(XNP3013-B)

CN5102E

MECHANISMUNIT

DISPLAYASSY

I

CD SWLEDASSY

J

CN5401K

SIDE A

I J

XR-A770

41

A

B

C

D

1 2 3 4

1 2 3 4

I J

Q2901Q2903

Q2906

Q2908

IC5601

IC5501

IC5631

IC3901

IC3931

Q2904

Q5502Q5501

Q5601

Q5604

Q2910

Q5821

Q5606

Q5605

(XNP3013-B)

DISPLAYASSY

I

CD SWLEDASSY

J

SIDE B

XR-A770

42

A

B

C

D

1 2 3 4

1 2 3 4

4.7 SUB DISPLAY ASSY

IC5411

Q5411

Q5415

(XNP3013-B)

CN5502I

SUB DISPLAY ASSYK

SIDE A SIDE B

K

XR-A770

43

A

B

C

D

1 2 3 4

1 2 3 4

CN3051EFM/AM TUNER MODULEA

FM/AM TUNER MODULEA

(ANP7160-B)

VR6201

Q6204 Q6203

IC6201 Q6201 Q6601Q6202 Q6214 Q6501Q6101Q6102 - Q6105Q6205IC6202

4.8 FM/AM TUNER MODULE

SIDE A

SIDE B

A

44

XR-A770

Mark No. Description Part No. Mark No. Description Part No.

LIST OF PCB ASSEMBLIESMark No. Description Part No. Mark No. Description Part No.

5. PCB PARTS LISTNOTES:•Parts marked by "NSP" and can not be supplied.

•The mark found on some component parts indicates the importance of the safety factor of the part.Therefore, when replacing, be sure to use parts of identical designation.

•When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%).

560 Ω → 56 × 101 → 561 ........................................................ RD1/4PU 5 6 1 J47k Ω → 47 × 103 → 473 ........................................................ RD1/4PU 4 7 3 J0.5 Ω → R50 ..................................................................................... RN2H R 5 0 K1 Ω → 1R0 ..................................................................................... RS1P 1 R 0 K

Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).5.62k Ω → 562 × 101 → 5621 ...................................................... RN1/4PC 5 6 2 1 F

FM/AM TUNER MODULE AXQ7068

NSP $M SERVO BOARD ASSY XWX3005 CD ASSY XWZ3141 MOTOR ASSY AWZ8428 NSP SW ASSY AWZ8429

MAIN ASSY XWM3064 REAR AMP ASSY XWZ3122 AF ASSY XWZ3120 SECONDARY ASSY XWZ3121

NSP COMPLEX ASSY XWM3065 PRIMARY ASSY XWZ3152 SUB TRANS ASSY XWZ3139 DISPLAY ASSY XWZ3123 CD SW LED ASSY XWZ3131 SUB DISPLAY ASSY XWZ3112

FM/AM TUNER MODULESEMICONDUCTORS

IC6201 LA1832MLIC6202 LC72131MDQ6102 2SC2223Q6203 2SC2705Q6201, Q6202 2SC2712

Q6103, Q6214, Q6601 2SC2714Q6104, Q6105 2SK302Q6101 3SK194Q6204 DTA124ESQ6205 DTC124EK

D6202 1SS254D6101–D6104 1SV228

COILS AND FILTERSL6106 ATC1003L6105 ATC1015L6101 ATC1016L6102 ATC1017L6103 ATC1018

L6104 ATC1019F6203 ATF-119F6206 ATF7008F6601 ATF7009F6204 ATF7010

F6202 ATF7011L6107 ATH1043L6603 LAU220JL6206, L6208, L6605 LAU2R2J

TRANSFORMERST6201 ATB7008T6101 ATE7002

CAPACITORSC6113, C6212, C6274, C6275, C6611 CCSQCH101J50C6116, C6208, C6221 CCSQCH150J50C6222 CCSQCH180J50C6271 CCSQCH200J50C6117 CCSQCH330J50

C6608 CCSQCH680J50C6118 CCSQCH8R0D50C6111, C6122 CCSQCK1R0C50C6112, C6127 CCSQCK2R0C50C6105 CCSQSL471J50

C6101 CCSQTH110J50C6119 CCSQTH150J50C6109 CCSQTH270J50C6107, C6110 CCSQTH300J50C6106 CCSQTH330J50

C6234, C6235 CEAL1R0M50C6245 CEAL470M16C6224 CEAS100M50C6243 CEAS101M16C6231 CEAS1R0M50

C6227 CEAS220M16C6236 CEAS2R2M50C6216 CEAS330M16C6262 CEAS3R3M50C6219 CEAS470M10

C6244 CEAS470M16C6249, C6250, C6265, C6266 CEAS4R7M50C6258 CEJA470M16C6215 CFTLA103J50C6214 CFTLA224J50

C6115, C6125, C6126, C6211, C6254 CKSQYB102K50C6601 CKSQYB102K50C6102, C6114, C6121, C6123, C6124 CKSQYB103K50C6210, C6213, C6237, C6267, C6276 CKSQYB103K50C6279, C6281, C6604 CKSQYB103K50

A

45

XR-A770

Mark No. Description Part No. Mark No. Description Part No.C6251, C6252 CKSQYB123K50C6606, C6607 CKSQYB182K50C6203, C6259 CKSQYB223K50C6228 CKSQYB472K50C6209 CKSQYB473K50

C6230 CKSQYB821K50C6218, C6223, C6255 CKSQYF103Z50C6220, C6226, C6242, C6256 CKSQYF223Z50C6225 CKSQYF473Z50C6610 CKSYB103K50

RESISTORSR6602 RD1/4PU221JR6115, R6119, R6123, R6127, R6129 RS1/8S0R0JR6906, R6909, R6911 RS1/8S0R0JR6112 RS1/8S473JVR6201 (10kΩ) RCP1045

Other Resistors RS1/10S J

OTHERSBN6202 ANTENNA TERMINAL AKA7001X6202 CERAMIC RESONATOR ASS1066

(456kHz)X6201 CRYSTAL RESONATOR ASS1093

(7.2000MHz)

CN6201 14P SOCKET KP200IA14LAM RF TUNING BLOCK AXX7042

CD ASSYSEMICONDUCTORS

IC8201 BA5923FPIC8101 LA9241MLIC8301 LC78622NEQ8101 2SA1048Q8251, Q8252 2SB1237X

Q8253, Q8254 2SD1858XD8253 1SS181D8251, D8252 1SS355

COILS AND FILTERSL8351, L8352 LFA1R0KL8201, L8371 LFA470J

CAPACITORSC8145, C8352, C8354, C8356, C8358 CCSQCH101J50C8361, C8362 CCSQCH101J50C8132, C8311 CCSQCH150J50C8310 CCSQCH180J50C8131 CCSQCH300J50

C8129 CCSQCK1R0C50C8142 CEAL101M6R3C8127 CEAL1R0M50C8126, C8139 CEAL470M16C8135 CEAL4R7M16

C8124 CEALR47M50C8136 CEAT100M50C8108, C8306, C8371 CEAT101M10C8202 CEAT101M25C8101 CEAT3R3M50

C8105 CEAT470M16C8109 CEATR22M50C8106, C8119, C8133, C8307, C8308 CKSQYB102K50C8360 CKSQYB102K50C8102, C8122, C8123, C8130 CKSQYB103K50

B

C8137, C8138, C8201, C8309, C8312 CKSQYB103K50C8134, C8302, C8303 CKSQYB104K25C8353, C8359 CKSQYB152K50C8111 CKSQYB153K25C8114, C8117, C8120, C8121 CKSQYB154K16

C8125 CKSQYB221K50C8107 CKSQYB223K50C8110 CKSQYB331K50C8115, C8128 CKSQYB332K50C8113 CKSQYB333K25

C8112, C8141 CKSQYB334K16C8116, C8140, C8355, C8357 CKSQYB473K50C8118, C8255–C8257, C8301 CKSQYF104Z25C8304, C8305 CKSQYF104Z25

RESISTORSAll Resistors RS1/10S J

OTHERSCN8003 6P JUMPER CONNECTOR 52151-0610CN8002 KR CONNECTOR B6B-PH-K-SCN8005 3P SIDE POST BS3P-SHF-1AACN8004 FFC CONNECTOR 22P HLEM22R-1CN8001 FFC CONNECTOR SLW15S-1C7

X8301 CERAMIC RESONATOR PSS1008(16.9344MHz)

MOTOR ASSYSWITCHES AND RELAYS

S8503 ASG7009

OTHERSJ8502 JUMPER WIRE 4P D20PWW0405E

MOTOR PULLEY PNW1634CARRIAGE MOTOR VXM1033

SW ASSYSWITCHES AND RELAYS

S8502 ASG7009S8501 DSG1017

OTHERSJ8501 JUMPER WIRE 6P D20PWY0610E

AF ASSYSEMICONDUCTORS IC23 (400mA) AEK7004 IC3331 (1.25A) AEK7010 IC33 (2A) AEK7013

IC2101, IC3101–IC3103, IC3201 BA4558F-HTIC3202, IC3381, IC34, IC5691 BA4558F-HT

IC5751 BU1923FIC3203 BU4066BCFIC5891, IC5892 BU4094BCFIC2201 HA12136AFIC2301 HA12211NT

IC3001 LC75396NE IC42 NJM7805FA IC32 NJM7812FA IC3301 STK407-090B

Q3354, Q3601, Q3621, Q55, Q5751 2SA1037K

C

D

E

46

XR-A770

Mark No. Description Part No. Mark No. Description Part No.Q2806 2SB1197K

Q22 2SB1375Q2803, Q2804 2SC1815Q2801 2SC2240Q2102, Q2201, Q2202, Q3101, Q3102 2SC2412K

Q33, Q3353, Q3401, Q3603 2SC2412KQ3605–Q3608, Q56 2SC2412K

Q21 2SC5200(P)Q3081 2SD1858X

Q34, Q54 2SD1858X

Q31 2SD2012Q2203, Q2204, Q2805, Q3311, Q3312 2SD2114KQ2301, Q2302 2SK368Q3201, Q3313, Q3403 DTA124EKQ2104, Q2105, Q3202, Q3314, Q3402 DTC124EK

Q3641, Q5752 DTC124EKQ2103, Q2306, Q2802, Q2807 DTC143EK

D3301, D3302 1SR139-100D2301–D2306, D3101, D3102, D32 1SS133D3202, D3351–D3354, D3361, D3362 1SS133

D34, D3403, D3603, D3621, D3622 1SS133D3625–D3627, D51 1SS133D3402 1SS184D2102, D2103, D2191, D2201, D2202 1SS355D3051, D3201, D3601, D3604 1SS355

D3623, D3624, D5891 1SS355 D3355, D3356 20E2-FC D31 GBU4D

D3357, D3358 MTZJ10CD3083 MTZJ11C

D33 MTZJ20AD52 MTZJ22DD3363, D3364 MTZJ39CD3401 MTZJ4.7BD2001 MTZJ6.2A

D48 MTZJ6.8C

COILS AND FILTERSL3331, L3332 ATH-133L2801 ATX7002L5751 LAU1R0JL1651, L3991 LAU4R7JL2301, L2302 LTA822J

F2201, F2202 RTF1209

SWITCHES AND RELAYSRY3601 ASR7008

CAPACITORSC3345, C3346, C3435, C3436(10000pF) ACG7021C2303, C2304 (270pF) ACG7024C2301, C2302 CCSQCH100D50C3203, C3204 CCSQCH121J50C2192 CCSQCH220J50

C3003, C3004 CCSQCH221J50C5751, C5752, C5755 CCSQCH270J50C5757 CCSQCH271J50C38 CCSQCH331J50C3319, C3320 CCSQCH3R0C50

C3321, C3322 CCSQCH470J50C5756 CCSQCH561J50C33 CEAL100M50C3621 CEAL2R2M50C3317, C3318 CEANP100M35

C3313, C3314 CEANPR47M50C2207, C2803, C2810, C3041, C3042 CEAT100M50C3047, C3048, C3081, C3091–C3093 CEAT100M50C3441–C3444, C3450, C36, C3602 CEAT100M50C51, C5758 CEAT100M50

C2002, C2316 CEAT101M16C3651 CEAT101M35C3303, C3304, C3622, C54 CEAT101M50C2312, C2313, C3035, C3036 CEAT1R0M50C3107, C3108 CEAT1R0M50

C1990, C2106, C2214, C2215 CEAT220M50C2321, C2322 CEAT220M50C2001 CEAT221M16C40 CEAT222M25C2201, C2202, C2205, C2206 CEAT2R2M50

C2212, C2213, C2319, C2320 CEAT2R2M50C3005–C3012, C3015–C3018 CEAT2R2M50C3039, C3040, C3043–C3046, C3104 CEAT2R2M50C3205, C3206, C3211, C3212 CEAT2R2M50C2804, C2805, C3105, C5754 CEAT330M16

C3406 CEAT330M25 C11, C12 CEAT332M35

C3106, C3109 CEAT4R7M50C3021, C3022 CEATR10M50C2203, C2204, C3101, C3102 CEATR22M50

C3325 CEATR47M50C35, C43 CEHAQ100M50C32, C42 CEHAQ1R0M50C3601 CEHAQ221M16C3027, C3028 CFTLA334J50

C3023, C3024 CFTLA474J50C3311, C3312 CFTYA154J50C2812 CKCYB103K50C2802 CKCYB681K2HC1996, C3308, C3993, C3994, C5693 CKSQYB102K50

C5892 CKSQYB102K50C1653, C1922, C1993–C1995 CKSQYB103K50C1998, C1999, C2003, C2004, C2315 CKSQYB103K50C2317, C2318, C3053, C3103 CKSQYB103K50C3201, C3202, C5001, C5753 CKSQYB103K50

C1651, C1652, C1997, C2191, C2193 CKSQYB104K25C3097, C3099, C3652 CKSQYB104K25C3033, C3034 CKSQYB122K50C2208, C2209 CKSQYB152K50C3209, C3210 CKSQYB153K50

C2323, C2326 CKSQYB223K25C3029, C3030 CKSQYB273K25C2808, C2809 CKSQYB332K50C3207, C3208 CKSQYB333K50C2333, C2334 CKSQYB392K50

C3315, C3316 CKSQYB471K50C2807, C3051, C3052 CKSQYB472K50C3111, C3112, C5891 CKSQYB473K25C2307, C2308, C2331, C2332 CKSQYB681K50C3013, C3014 CKSQYB681K50

C3019, C3020, C3031, C3032 CKSQYB682K50C3323, C3324 CKSQYB682K50C3025, C3026 CKSQYB683K25C3331–C3333, C3335–C3340 CKSQYF104Z50C3451–C3458 CKSQYF104Z50

47

XR-A770

Mark No. Description Part No. Mark No. Description Part No.C2194, C37 CKSQYF105Z16C2801 CQHA822J2AC2210, C2211 CQMBA103J50C2806 CQMBA223J50

C31 (4700µF/42V) XCH3003

RESISTORSR2809 RD1/2LMF4R7JR2812 RD1/2PM270JR2813 RD1/2PM471JR3333, R3334 RD1/4LMF101JR3317, R3318 RD1/4PU104J

R3116 RD1/4PU105JR3081 RD1/4PU221JR33 RD1/4PU222JR3009 RD1/4PU472JR2334 RD1/4PU562J

R41 RN1/10SE1002DR40 RN1/10SE2002DR39 RS1/10S3300FR3991, R3992 RS2LMF331JR30 RS3LMF470J

R3601, R3602 RS3LMFR22JVR2303-VR2306 (10kΩ) VCP1156VR2301,VR2302 (100kΩ) VCP1162VR2801,VR2802 (220kΩ) VCP1164Other Resistors RS1/10S J

OTHERS4P CABLE HOLDER 51048-0400

CN1052 22P FFC CONNECTOR 52045-2245CN5102 38P FFC CONNECTOR 52045-3845CN3401 17P JUMPER CONNECTOR 52147-1710CN3432,CN3433 2P CONNECTOR 5569-02A1

CN3331 4P SPEAKER TERMINAL AKE7001CN2302 KR CONNECTOR B2B-PH-K-SCN2303 KR CONNECTOR B3B-PH-K-RCN2301 KR CONNECTOR B3B-PH-K-SJ81 JUMPER WIRE 4P D20PYY0440E

JA1651 OPTICAL LINK OUT GP1F32TCN3051 14P PLUG KM200IB14

PCB BINDER VEF1040J3051 CONNECTOR ASSY 2P XDX3002JA3001,JA3441 2P PIN JACK XKB3002

CN3991 HEADPHONE JACK XKN3002X5751 CRYSTAL RESONATOR ASS7004

(4.332MHz)

SECONDARY ASSYSEMICONDUCTORS IC71 (630mA) AEK7006 IC41 (5A) AEK7019 IC21, IC22, IC31 (7A) AEK7021 IC11, IC12 (10A) AEK7068 Q71 2SA965

D73 1SS133 D21 GBU4DL-5303 D11 GBU6DL-5302

D74 MTZJ36AD75 MTZJ8.2B

D41–D44, D71, D72 S5688G

CAPACITORSC72 CEAT220M50

C71 CEAT221M63 C41 CEAT222M25

C13 CQMA103K2E C21, C22 (4700µF/80V) XCH3001

RESISTORSR72 RD1/4PU222JOther Resistors RS1/10S J

OTHERSJ11 JUMPER WIRE 17P D20PYY1740E

PRIMARY ASSYCAPACITORS C3 (10000pF/AC250V) ACG7020

SUB TRANS ASSYSEMICONDUCTORS IC81 NJM7805FA

Q81 2SD1859XD85, D88–D90 1SS133

D81–D84 S5688G

COILS AND FILTERS L1 ATF1136

TRANSFORMERS T2 ATT7027

SWITCHES AND RELAYS RY81 ASR7018

CAPACITORS C1, C2 (10000pF/AC250V) ACG7020

C83 CEAT100M50 C82 CEAT102M25

RESISTORSR83 RS1/10S102JOther Resistors RD1/4PU J

OTHERSCN83 4P JUMPER CONNECTOR 52147-0410H1, H2 FUSE CLIP AKR7001

AN1 1P AC INLET BKP1046

DISPLAY ASSYSEMICONDUCTORS

IC5631 BA3835FIC5601 BU2092FIC5501 PDC049AQ5501 2SA1037KQ2903, Q2906, Q2908 2SB1132

Q5604, Q5801 2SC2412KQ2910, Q2911 DTA124EKQ5606 DTC124EKQ2901, Q2904, Q2907, Q5502, Q5603 DTC143EKQ5821 DTC143EK

F

G

H

I

48

XR-A770

Mark No. Description Part No. Mark No. Description Part No.D5592, D5594–D5596, D5811 1SS133D5551–D5568 1SS181D2901–D2903, D5569, D5570, D5626 1SS355D5901 1SS355D5612 MAA5064X

D5608–D5611 MBG5064XD5613–D5616 MPG5064XD5617–D5620 SLP3118C51HD5603–D5607, D5621 SLP9118C51H

COILS AND FILTERSL5811 LAU220J

SWITCHES AND RELAYSS5951 ASX7004S5952 ASX7017S5911–S5931 XSG3001

CAPACITORSC5812 (0.047F/5.5V) ACH1246C5601 CCSQSL151J50C5821 CEJA100M16C5803 CEJA1R0M50C5510, C5811, C5814 CEJA470M16

C5804 CKSQYB102K50C5995, C5996 CKSQYB103K50C5816, C5997–C5999 CKSQYB104K25C5505, C5509, C5951–C5954 CKSQYB471K50C5506–C5508, C5511 CKSQYB472K50

C5602, C5631–C5634, C5901 CKSQYF104Z50C5503, C5504, C5813, C5822 CKSQYF473Z50

RESISTORSR5529 (470Ω) ACN7056R5554, R5556, R5561, R5562 (1.5kΩ) ACN7062R5558, R5563, R5564 (47kΩ) ACN7077R5508 RA11T104JR5506 RA7T104J

R2907, R2909, R2910, R5919 RD1/4PU102JR5915 RD1/4PU181JR5925 RD1/4PU331JR5605, R5606, R5612, R5613, R5926 RD1/4PU561JR2902, R5604, R5607–R5611 RD1/4PU681J

R5927 RD1/4PU821JR2911–R2913 RS1/8S0R0JR5614 RS1/8S331JR2905 RS1/8S681JOther Resistors RS1/10S J

OTHERSCN5502 14P FFC CONNECTOR 52045-1445CN2901 19P FFC CONNECTOR 52045-1945CN5501 38P FFC CONNECTOR 52045-38455901 REMOTE RECEIVER UNIT GP1U28XV5621 FL TUBE XAV3004

2902 FL HOLDER XNG3008X5501 CERAMIC RESONATOR RSS1050

(6MHz)

CD SW LED ASSYSEMICONDUCTORS

D5623 SLP3118C51HD5624 SLP7118C51HD5622 SLP9118C51H

SWITCHES AND RELAYSS5937–S5941 XSG3001

RESISTORSAll Resistors RS1/10S J

OTHERSJ5501 JUMPER WIRE D20PWW0615E

SUB DISPLAY ASSYSEMICONDUCTORS

Q5411 DTC143EKD5411, D5412 SLP7118C51H

SWITCHES AND RELAYSS5403 ASX7004S5404 XSG3001S5401, S5402 XSX3002

RESISTORSR5430 RD1/4PU561JOther Resistors RS1/10S J

OTHERSCN5401 14P FFC CONNECTOR 52045-1445

REAR AMP ASSYSEMICONDUCTORS IC3401 TDA8560Q

Q3661, Q3671, Q3672 2SA1037K Q3352 IRF540A Q3351 IRF9540A

D3662 1SS133

D3663 1SS355D3359, D3360 MTZJ18BD3661 MTZJ2.7AD3671 MTZJ20AD3371, D3372 U1GC44

TH3661 AEX7002

CAPACITORSC3671 CEAT101M10C3411 CEAT101M35C3401, C3402 CEATR47M50C3403, C3404, C3413–C3416 CKSQYB102K50

RESISTORSR3353, R3354 RD1/4PU101JOther Resistors RS1/10S J

OTHERSJ3401 JUMPER WIRE 17P D20PYY1720E

J

K

L

49

XR-A770

6. ADJUSTMENT6.1 TUNER SECTION

FM Tuner Section• Set the mode selector to FM BAND.• Connect the wiring as shown in Fig. 1.

AM Tuner Section• Set the mode selector to AM BAND.• Connect the wiring as shown in Fig. 1.

AM SG

MPX SG FM SG PRODUCT DCVoltmeter

FM75Ω antenna terminal

AM antenna terminal

60cm

Center Center

Loop antenna

Fig. 1 AM and FM Adjustment Wiring Diagram

FM/AM TUNER MODULE (AXQ7068)

AXX7042

L6101

L6102L6103 L6104

L6105

T6101

T6201

VR6201

AMantennaterminal

FMantennaterminal

YELLOW BLACK

Fig. 2 Adjustment Point

petS.oN

tnemtsujdAeltiT

,zHk1(GSMF ± ).vedzHk57 noitpeceRycneuqerF

yalpsiD

tnemtsujdAnoitacoL

snoitacificepSycneuqerF)zHM(

leveLBd( µ )V

1dnEtnorFytivitisneS

601 03-0 zHM601

4016L5016L2016L1016T

ehtneewtebegatlovCDehttahtostsujdAmumixamtasemocebDNGdna02nip-1026CI

.level

2 noitrotsiDoeretS89

)OERETSNO(08 zHM89 1016T

ehtfonoitator8/1htiwnoitrotsidehteziminiM.eroc

3.DNIDENUTleveLgnithgiL

89 81 ± 2 zHM89 1026RV.DNIDENUTforotacidniehttahtostsujdA

.puthgilotstrats

:etoNneewtebpagasierehtfI.4016Ldna3016Lneewtebsallewsa2016Ldna1016Lneewtebpagonsierehterusekam,gnitsujdaerofeB

.stnemtsujdaekamnehtdna,tsrifrehtohcaehtiwtcatnocotnimehtgnirb,meht

petS.oN

tnemtsujdAeltiT

).doM%03,zH004(GSMA noitpeceRycneuqerF

yalpsiD

tnemtsujdAnoitacoL

snoitacificepSycneuqerF)zHk(

leveLBd( µ )m/V

1dnEtnorFytivitisneS

999 ∗1 54-53 zHk999 ∗1 1026TehtneewtebegatlovCDehttahtostsujdA

mumixamtasemocebDNGdna02nip-1026CI.level

∗ .zHk0001ebdluohsseicneuqerf,petszHk01gnisuaeraehtroF:1

50

XR-A770

Electrical AdjustmentCheck the following before starting.(1) Confirm that the tape speed adjustment has been completed.(2) Clean the heads and demagnetize them using a head eraser.(3) Set the measurement level to 0 dBV = 1 Vrms.(4) Use the specified tape for adjustment. Use the labeled (A) side of the test tape.

STD-331E : For playback checkSTD-632 : Normal blank tape

(5) Provide yourself with the following measuring devides:• AC millivoltmeter• Low-frequency oscillator• Attenuator• Oscilloscope

(6) Adjust both right and left channels unless otherwise specified.(7) Turn the DOLBY NR switch off unless otherwize specified.(8) Warm up the unit for several minutes before adjustment. In particular, be sure to warm up the unit in the REC/PLAY mode for 3 to 5 minutes before starting recording/playback frequency characteristics adjustment.(9) Always follow the indicated adjustment order. Otherwise, a complete adjustment may not be achieved.

Playback Adjustment (Decks I and II)(1) Head Azimuth Adjustment(2) Playback Level Adjustment

Recording Adjustment (Deck I)(1) Bias Oscillation Frequency Adjustment(2) Recording Bias Adjustment(3) Recording Level Adjustment.(4) ALC Operation Check

* As the reference recording level is 250nwb/m for STD-331E, the recording level will be higher by 4 dB for STD-331B (160nwb/m). When adjusting, pay carefull attention to the type of tape used.

6.2 CASSETTE DECK SECTION• Adjustment points and test points are shown in Fig.3, Fig.5 and Fig.7.

Mechanical Adjustment• Test tape: NCT-111 (3kHz, 30min).

1. Tape Speed Adjustment

Dolby noise reduction manufactured under license from DolbyLaboratories Licensing Corporation.“DOLBY” and the double-D symbol are trademarks of DolbyLaboratories Licensing Corporation.

.oN edoM epaTtseTgnitsujdA

stnioPtnemerusaeM

stnioPerudecorPtnemtsujdA skrameR

1kceD IYALP

111-TCN)zHk3:kcabyalP(

noRV.JDAETTESSAC

)3.giF(AHCEM

TSETEPAT)hcR(TNIOP

)yssAFA(

gnidaerehttahtostsujdadnaWSYALPehtsserPzH0003semoceb ± rettulf&wowtahtmrifnoC.zH02

mrifnoc,noitceridesreverehtni(%3.0wolebsilevelzH0003nihtiwsignidaerehttaht ± .)zH06

Front Side

AF Assy

Fig.3 Tape Speed ADJ. Point

CassetteMechanismSection(Side View)

Tape SpeedADJ. VR

51

XR-A770

Playback Adjustment(1) Head Azimuth Adjustment• Do not switch between forward and reverse operation with the screwdriver inserted.

Fig. 5 Head Azimuth Adjustment Screw

REV Azimuth Adjustment Screw FWD Azimuth Adjustment Screw

250

3dB

10k12.5k

3dB 4dB

PLAY BACK

250

3dB

10k12.5k

3dB 5dB

RECORDING

Fig. 6 Frequency Characteristics

(2) Playback Level Adjustment• Since this adjustment determines playback Dolby NR level, perform it carefully.

petS edoM/langiStupnI

epaTtseTstnioPgnitsujdA

tnemerusaeMstnioP

tnemtsujdAeulaV

skrameR

1 YALPepattsetE133-DTS

,zHk01:kcabyalP()Bd02-

kceD I htumizadaeHtnemtsujda

)5.giF(wercs

TSETEPAT)hcR,L(TNIOP

)yssAFA(

kcabyalp.xaMlevellangis

otdnobnocilisylppa,tnemtsujdaretfA.wercstnemtsujdahtumizadaehehtkceD II



tnemerusaeMstnioP

tnemtsujdAeulaV

skrameR

1 YALPE133-DTS

epattset)Bd0,zH513:kcabyalP(

kceD I)hcL(3032RV)hcR(4032RV TSETEPAT

)hcR,L(TNIOP)yssAFA(

VBd7.3–kceD II

)hcL(5032RV)hcR(6032RV

0 dB

–20 dB

30s0 dB: 315 Hz, 250 nwb/m

315Hz6.3kHz 10kHz 315Hz 14kHz 12.5

kHz6.3kHz

500Hz

250Hz

125Hz10kHz 8kHz 4kHz 2kHz 63Hz 40Hz1kHz

30s 30s 30s 10s 10s ......................................................................................................... 10s

Fig. 4 STD-331E Test Tape

52

XR-A770



tnemerusaeMstnioP

tnemtsujdAeulaV

skrameR

1 CER236-DTSehtdaoL

ehttesdnaepattset.edomgnidrocer

kceD II noitallicsOotycneuqerfzHk0.501eb

± .zHk2

ruofrofnottubPOTS/CERehtfIDNATSnisirewopehtelihwsdnocesesaercedlliwycneuqerfeht,edomYB

.zHk3ot2KCED I

1082L)yssAFA(

neewteB7.giFnitniop

.DNGdna

Recording Adjustment(1) Bias Oscillation Frequency Adjustment

(2) Recording Bias Adjustment• Since this adjustment affects recording bias, prevent distortion from increasing due to underbias.

A

Note : Set the 10kHz input signal level to the same value as the 315Hz input signal level of step 1.

(4) ALC Operation Check

(3) Recording Level Adjustment

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stnioPeulaVtnemtsujdA skrameR

1 CERehtotlangiszH513atupnI

tupniehttesdnalanimretXUA.XUAotrotceles

kceD II TSETEPAT)hcR,L(TNIOP

)yssAFA(VBd7.32–

KCED I levellangistupnI

2CER →

YALP

dnaepattset236-DTSehtdaoLdnazH513ehtkcabyalp/drocer

.slangiszHk01)wolebetoNehtees(


)yssAFA(

levelkcabyalplitnutnemtsujdataepeR0nihtiwsilangiszHk01ehtfo ± Bd5.0.langiszH513ehtfotahtmorfKCED I

)hcL(1082RV)hcR(2082RV



1 CERehtotlangiszH513atupnI

tupniehttesdnalanimretXUA.XUAotrotceles

kceD IIlevellangistupnI

TSETEPAT)hcR,L(TNIOP

)yssAFA(VBd7.7–

KCED I

2CER →

YALP

dnaepattset236-DTSehtdaoLzH513ehtkcabyalp/drocer

.langis


)yssAFA(

dnakcabyalp,gnidrocertaepeRehtfolevelkcabyalplitnutnemtsujda

.VBd7.7–semoceblangiszH513KCED I)hcL(1032RV)hcR(2032RV



1/CERESUAP

ehtotlangiszH513atupnItupniehttesdnalanimretXUA

.XUAotrotceles

levellangistupnI TSETEPATTNIOP

)hcR,L()yssAFA(

VBd2.8–

2ehtevodaBd01+levelaotteS

.1petstaleveltupnisignidaerehttahtmrifnoC

2.2– ± .VBd5.2

53

XR-A770

A

VR2302

VR2802

VR2303 VR2305

VR2304

TAPE TESTPOINT

Fig.7 Adjustment and Measurement Points

FRONT

L chR ch

VR2306

VR2801

L2801

VR2301

SIDE AAF ASSY

54

XR-A770

REC/STOP

PLAY/PAUSE

CD

STANDBY/ON

Function CD

TEST DISC: YEDS-7

"TEST 4"

Laser diode: LIGHTS UPFocus servo: CLOSE

Spindle motor: STARTSpindle servo: CLOSE

CLOSE OPEN

Tracking servo:

STOP all operations.

TEST DISC: YEDS-7

STANDBY/ON

CD TEST

Short Point

CD TEST

Short Point

inwards outwardsPickup Move

TEST MODE : ON

TEST MODE : PLAY

TEST MODE : STOP CANCEL

How to Start/Cancel Test Mode

Test Point

6.3 TEST MODENOTE: There is no information to be shown in this CD adjustment.

DISPLAY ASSY

CD TEST

Bottom Side

SIDE B

REC/STOP

PLAY/PAUSE

55

XR-A770

7. GENERAL INFORMATION

• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

HA12136AF (AF ASSY : IC2201) • Dolby B Type NR System IC

•Pin Function

7.1 PARTS7.1.1 IC

.oN emaNniP noitcnuF .oN emaNniP noitcnuF

1 NICER tupni)edocnE(gnidroceR 9 TUOCER tuptuo)edocnE(gnidroceR

2 V CC ylppusrewoP 01 TED rotcetedlevelehtrofniptnatsnocemiT

3 NIBP tupni)edoceD(kcabyalP 11 TUOBP tuptuo)edoceD(kcabyalP

4 ferV egatlovecnerefeR 21 BP/CER)edoceD/edocnE(BP/CERrofniplortnocedoM

)edoceD(BP:"L",)edocnE(CER:"H"

5 FFO/NORNFFO/NORNrofniplortnocedoM

FFORN:"L",NORN:"H"31 SAIB sretlifevitcaehtrofniptupnitnerrucecnerefeR

6 TUOBP tuptuo)edoceD(kcabyalP 41 NIBP tupni)edoceD(kcabyalP

7 TED rotcetedlevelehtrofniptnatsnocemiT 51 DNG dnuorG

8 TUOCER tuptuo)edocnE(gnidroceR 61 NICER tupni)edocnE(gnidroceR

HA12211NT (AF ASSY : IC2301) • REC Equalizer and PB Equalizer System IC

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

RE

C–E

Q

GN

D

TA

PE

(L)

RE

C–O

UT

(L)

RE

C–O

UT

(R)

PB–IN PB

–IN

PB

–CA

L

PB

–CA

L

PB

–EQ

PB

–EQ

PB

–NF

PB

–NF

PB

–IN

PB

–IN

TA

PE

(R)

AU

X(L

)

AU

X(R

)

IRE

F

RE

C–S

EL

BC

r

AC

r

HS

P

A/B

PB

–OU

T(L

)

PB

–OU

T(R

)

PB

–CA

L

PB

–CA

L

REC INfrom logic

B(L

)

B(R

)

to Dolby

REC–

RETU

RNVcc (R

)

(R)

(L)

(L)

A(R

)

A(R

)

A(L

)

A(L

)

VR

EF

B(R

)

B(L

)

R–ch

L–ch

R–c

h

L–ch

12dB

139k

5k 2.7k 2.26k 1.12k

10k

B

A

B

A

•Block Diagram

56

XR-A770

•Pin Function.oN emaNniP noitcnuF .oN emaNniP noitcnuF

1 V CC V CC nip 61 )R(BlaC-BPtnemtsujdaniagroftupnikcabdeeF

2 )L(TUOCERtuptuoQE-CER

71 )L(BlaC-BP

3 )R(TUOCER 81 )R(TUOBPtuptuoBP

4 NRUTER-CER nruterCER 91 )L(TUOBP

5 )L(BNI-BPtupnikcedBBP

02 B/A

tupnilortnocedoM6 )R(BNI-BP 12 PSH

7 FERV egatlovecnerefeR 22 rcA

8 )L(ANI-BPtupnikcedABP

32 rcB

9 )R(ANI-BP 42 LES-CER tupnilortnocedoM

01 )L(FN-BPkcabdeefQEBP

52 FERI tupnitnerrucecnereferrezilauqE

11 )R(FN-BP 62 )R(XUA

tupniQE-CER21 )L(QE-BP

tuptuoBAN72 )L(XUA

31 )R(QE-BP 82 )R(EPAT

41 )L(AlaC-BPtnemtsujdaniagroftupnikcabdeeF

92 )L(EPAT

51 )R(AlaC-BP 03 DNG nipDNG

LC75396NE (AF ASSY : IC3001) • Electrical Volume IC

•Block Diagram

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

LSELO

LINVIN1

L5

L4

L3

L2

L1

VDD

R1

R2

R3

R4

R5

RINVIN1

RSELO

RTIN RFOUT

RRIN

RRCOM

RROUT

RVrefRVref

Vref

CL

DI

CE

VSS

LVrefLVref

LROUT

LRCOM

LRIN

LFOUT

LFCOM

LTIN

LF1C

1

LF1C

2

LF1C

3

LF2C

1

LF2C

2

LF2C

3

LF3C

1

LF3C

2

LF3C

3

LF4C

1

LF4C

2

LF4C

3

LF5

LTO

UT

LFIN

RF

1C1

RF

1C2

RF

1C3

RF

2C1

RF

2C2

RF

2C3

RF

3C1

RF

3C2

RF

3C3

RF

4C1

RF

4C2

RF

4C3

RF

5

RT

OU

T

RF

IN

RF

CO

M

CONTROLCIRCUIT LOGIC CIRCUIT

CCBINTERFACE

57

XR-A770

PDC049A (DISPLAY ASSY : IC5501) • System Control Microcomputer

•Pin Function.oN emaNniP O/I noitcnuF .oN emaNniP O/I noitcnuF

1 TESERDC O ISLDCroftuptuoteseR 15 PDFV –

2 ECDC O tuptuoebortsISLDC 25 3955D/*S *

edonalortnocyalpsidLF

3 FRDDC I tupninoitcetedlevelFR 35 2955D/*S *

4DEL/DELSSAB

2ECO )SSABDEL(rotacidniSSAB.ProflortnocDEL 45 1955D/*S *

5 KLCPXE OCIDEL,)4904UB(CIPXEroftuptuokcolC

)5301VL(CIcigolorPdna)2902UB(55 2CGOJB/*S O/I

6 ATADPXE OCIDEL,)4904UB(CIPXEroftuptuoataD

)5301VL(CIcigolorPdna)2902UB(65 1CGOJB/*S O/I

7 ECPXE Oeborts)2902UB(CIDEL,)4904UB(CIPXE

tuptuo75 2BGOJB/*S O/I

8 AEPS/1DEL O/lortnocDEL

lortnoctuptuo)3291UB(CIrezylanamurtcepS

85 1BGOJB/*S O/I

9 BEPS/2DEL O 95 2AGOJB/*S O/I

01 CEPS/3DEL O 06 1AGOJB/*S O/I

11 CA ItupnieslupCA

)rotinomylppusrewop,kcolcrof(16 *S O/I

21 TESERX I tupniteserUPC 26 *S O/I

31 1LEER I leer2kcedroftupniesluP 36 PMALC/*S O/I

41 2LEER I leer1kcedroftupniesluP 46 NEPO/*S O/I

51 SSV – dnuorG 56 EDISNI/*S O/I

61 1FC I 66 321CSIDC/*S O/I

71 2FC O 76 RRA/*S O/I

81 DDV – ylppusrewoP 86 FRA/*S O/I

91 1YEK I tupniyektnorF 96 1EDOM/*S O/I

02 SM I tupnilangisSMkceD 07 2EDOM/*S O/I

12 ENUT/TS I noitceted)OERETS(denutrenuT 17 1FLAH/*S O/I

22 HT I noitcetedtiucricnoitcetorpdnaerutarepmeT 27 DDV –

32 DELREMIT O )remitrof(lortnocDEL 37 2FLAH/*S O/I

edonalortnocyalpsidLF42 2YEK I tupniyektnorF 47 1_2OrC/*S O/I

52 NI-EPS I tupnilangisrezylanamurtcepS 57 2_2OrC/*S O/I

62 3YEK I tupniyektnorF 67 NONACS O lortnoctupninacsyeK

72 QRWDC I tupnilangisKOatadQedocbusDC 77 2LOS O lortnocdionelos1kceD

82 KLCSDR I )3291UB(CISDRroftupnikcolC 87 1LOS O lortnocdionelos2kceD

92 NOCOMER I tupnilangislortnocetomeR 97 ROTOM O lortnocrotomkceD

03 *G

O edonalortnocyalpsidLF

08 ATADSDR I SDRroftupniataD

13 *G 18 1GOJLOVI gojemulovroftupniesluP

23 *G 28 2GOJLOV

33 *G 38 ECLLP O tuptuoebortsCILLPrenuT

43 *G 48 ECORP/WSPH O/ICIcigolorP/tupnitcetedWSenohpdaeH

tuptuoeborts)5301VL(

53 *G 58 ECLOVE Oeborts)49357CL(CIlortnocemulovniaM

tuptuo

63 *G 68 REWOP O lortnocrewopniaM

73 *G 78 ETUMENIL O lortnocetumeniL

83 *G 88 ECDEL O tuptuoeborts)2902UB(CIlortnocDEL

93 *G 98 SSV – dnuorG

04 *G 09 DDV – ylppusrewoP

14 *G 19 CNI noitcennocoN

24 *G 29 CN

34 *G 39 1GOJPROMI gojgnihpromdnuosroftupniesluP

44 *G 49 2GOJPROM

54 *G 59 ATADSYS O tuptuoatadlaireS

64 DDV – ylppusrewoP 69 ATADXT I tupniatadlaireS

74 7955D/*S O

edonalortnocyalpsidLF

79 KLCS O tuptuokcolclaireS

84 6955D/*S O 89 ATADDC O ISLDCroftuptuoatadlaireS

94 5955D/*S * 99 TUOQS I ISLDCroftupni)ATADQ(atadlaireS

05 4955D/*S * 001 KLCDC O ISLroftuptuokcolclaireS

58

XR-A770

LC78622NE (CD ASSY : IC8301) • CD DSP IC

• Block Diagram

• Pin Function

Slice levelcontrol RAM address

generator

Interpolationmute

Digitaloutput

Digitalattenuator

L. P. FCrystal oscillationsystem generator

Generalpurpose port

Syncdetection EFMdemosulation

C1, C2 error detection& correcting FlagProcessing

CLV Digitalservo

Sub coreseparationQCRC

MicrocomputerInterface

Servocommander

VCO clockoscillatorclock control

2k × 8-bitsRAM

8 × oversamplingdigital-filter

1-bit DAC

1

10

22

9 3 5 59

15 16 17 1920 4560 61 46 52 44 43 39 41 35 40 37 42 38 364834 2418 29

7 20 64 11 32 33 62 23 8

31

21

51

63

30

56

54

12

13

49

47

50

53

55

57

14

25 26 27 28

DEFI

EFMIN

FSEQ

CLV+

CLV–

V/*P

PW

SBCK

SBSY

SFSY

*CS

WRQ

SQOUT

*CQCK

COIN

RWC

HF

L

TE

S

TO

FF

JP–

JP+

58

*RE

S

TG

L

PC

CL

CO

NT

1

CO

NT

2

CO

NT

3

CO

NT

4

CO

NT

5

EM

PH

/CO

NT

6

EF

LG

16M

4.2M

XV

SS

FS

X

XIN

XO

UT

XV

DD

RV

SS

RV

DD

MU

TE

R/C

ON

T7

RC

HO

LCH

O

MU

TE

L/C

ON

T8

LVS

S

LVD

D

C2F

DOUT

VS

S

VD

D

TE

ST

4

TE

ST

5

TE

ST

3

TE

ST

2

TE

ST

1

TS

T11

TA

I

PC

K

FR

ISE

T

PD

O

EF

MO

6

VV

DD

4

VV

SS

.oN emaNniP O/I noitcnuF

1 IFED I .)desununehwV0otdetcennocebtsuM(niptupni)FED(langisnoitcetedtcefeD

2 IAT I

snipLLP

.V0otdetcennocebtsuM.ni-tliubsirotsisernwod-llupAniptupnitseT

3 ODP O niptuptuorotarapmocesahplortnocOCVlanretxE

4 SSVV − .V0otdetcennocebtsuMnipdnuorgOCVlanretnI

5 TESI IA nipnoitcennocrotsisertnemtsujdatnerructuptuoODP

6 DDVV − nipylppusrewopOCVlanretnI

7 RF IA tnemtsujdaegnarycneuqerfOCV

8 SSV − .V0otdetcennocebtsuMnipdnuorgmetsyslatigiD

9 OMFE OlortnoclevelecilS

niptuptuolangisMFE

01 NIMFE I niptupnilangisMFE

11 2TSET I .V0otdetcennocebtsuM.ni-tliubsirotsisernwod-llupAniptupnitseT

21 +VLC O tuptuolortnocrotomcsiD.dnammocrossecorporcimybtuptuoeulav-eerhtottesebnaC31 –VLC O

41 P*/V Oniptuptuorotinomgnihctiwscitamotualortnocesahp/ovreshguoR

.levelwolaovreshguorgnirudlevelhgihastuptuO

51 LFH I .tupnittimhcSasisihTniptupnilangisnoitcetedkcarT

61 SET I .tupnittimhcSasisihTniptupnilangisrorregnikcarT

71 FFOT O niptuptuoffognikcarT

81 LGT O .wolnehwniagehtesaercnIniptuptuognihctiwsniaggnikcarT

91 +PJ O tuptuopmujkcarT.dnammocrossecorporcimybdeificepsnehwelbissoposlasituptuoeulav-eerhT02 –PJ O

59

XR-A770

.oN emaNniP O/I noitcnuF

12 KCP O .dekcolsiesahpehtnehwzHM8123.4niptuptuOniprotinomkcolckcabyalpatadMFE

22 QESF OniptuptuonoitcetedlangisnoitazinorhcnyS

detarenegylanretniehtdnalangisMFEehtmorfdetcetedlangisnoitazinorhcnysehtnehwlevelhgihatuptuO.egnarlangisnoitazinorhcnys

32 DDV − nipylppusrewopmetsyslatigiD

42 1TNOC

O/I

1esoprup-lareneG

eratahtesehtfoynA.rossecorporcimehtmorfsdnammocatadlairesybdellortnoCtuptuosaputesro,V0otdetcennocdnastropniptupnisaputesrehtieebtsumdesunu

.nepotfeldnastropnip

52 2TNOC 2esoprup-lareneG




92 6TNOC/HPME O 6esoprup-lareneG/.ksidsisahpme-edafokcabyalpsetacidnilevelhgihAniprotinomsisahpme-eD

03 F2C O niptuptuogalf2C

13 TUOD O )tamrofAJIE(niptuptuolatigiD

23 3TSET I.V0otdetcennocebtsuM.ni-tliubsirotsisernwod-llupAniptupnitseT

33 4TSET I

43 LCCP I

nipgniyfitnedidnammoctuptuo/tupniesoprup-lareneG.E22687CLfoesohtotralimissnoitcnufhtiwdesunehwV0otdetcennocebtsuM

dnammoctroptuptuo/tupniesoprup-larenegehtrofylnoelbissoplortnoC:HsdnammocllarofelbissoplortnoC:L

53 7TNOC/LETUM O

tib-enolennahctfeLretrevnocA/D

niptuptuoetumlennahctfeL

63 DDVL − nipylppusrewoplennahctfeL

73 OHCL O niptuptuolennahctfeL

83 SSVL − .V0otdetcennocebtsuMnipdnuorglennahctfeL

93 SSVR −

-enolennahcthgiRretrevnocA/Dtib

.V0otdetcennocebtsuMnipdnuorglennahcthgiR

04 OHCR O niptuptuolennahcthgiR

14 DDVR − nipylppusrewoplennahcthgiR

24 8TNOC/RETUM O niptuptuoetumlennahcthgiR

34 DDVX − nipylppusrewoprotallicsolatsyrC

44 TUOX OniptnemelerotallicsolatsyrczHM4439.61arofsnoitcennoC

54 NIX I

64 SSVX − .V0otdetcennocebtsuMnipdnuorgrotallicsolatsyrC

74 YSBS O niptuptuolangisnoitazinorhcnyskcolcedocbuS

84 GLFE O niprotinomnoitcerrocrorreelbuoddnaelgnis2C,1C

94 WP O niptuptuoWdnaU,T,S,R,Q,PedocbuS

05 YSFS O .etatsybdnatsnieraedocbusehtnehwsllaflangissihTniptuptuolangisnoitazinorhcnysemarfedocbuS

15 KCBS I ).desununehwV0otdetcennocebtsuM(.tupnittimhcSasisihTniptupnikcolctuodaeredocbuS

25 XSF O rotallicsolatsyrcehtmorfdedividlangisnoitazinorhcnyszHk53.7ehtrofniptuptuO

35 QRW O niptuptuoybdnatstuptuoQedocbuS

45 CWR I .tupnittimhcSasisihTniptupnilortnocetirw/daeR

55 TUOQS O niptuptuoQedocbuS

65 NIOC I rossecorporcimlortnocmorfniptupnidnammoC

75 KCQC* I.niptupnikcolctuodaeredocbusnipTUOQSehtdnakcolcnoitisiuqcatupnidnammocehthtobroftupnI

.tupnittimhcSasisihT

85 SER* I .deilppatsrifsirewopretfaylfeirbwoltesebtsumnipsihTniptupniteseR

95 11TST O ).levelwolatuptuoyllamroN(.nepoevaeLniptuptuotseT

06 M61 O niptuptuozHM4439.61

16 M2.4 O niptuptuozHM6332.4

26 5TSET I .V0otdetcennocebtsuM.ni-tliubsirotsisernwod-llupAniptupnitseT

36 SC* I .dellortnoctonfiV0otdetcennocebtsuM.ni-tliubsirotsisernwod-llupAniptupnitcelespihC

46 1TSET I .V0otdetcennocebtsuM.rotsisernwod-llupoNniptupnitseT

.DDVXdnaDDVR,DDVL,DDVV,DDV,.e.i,snipylppusrewopllaotdeilppusebtsumlaitnetopemasehT:etoN

60

XR-A770

LV1035M (PRO LOGIC ASSY : IC3701) • Dolby Pro Logic Decoder IC

• Block Diagram

48

1 5 6 7 10 11 12 15 16

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

2 3 4 8 9 13 14

DCOUT3

R-RECT

DCOUT4

L-RECT

VLR-TH

VLR-1

VLR-2

VCS-2

VCS-1

VCS-TH

L+R-RECT

DCOUT2

L-R-RECT

DCOUT1

R-BPF3

OSC

VDDVD

D

A/D

NS

D/A

DC-OUT

DC-OUT

L-OUT

R-OUT

S-OUT

GND

IREF

DET

VCC

DELAY-OUT

OSC

L-B

PF

1

RT

-IN

LT-I

N

DC

-OU

T

C-M

OD

E

GN

D

NS

-BP

F1

NS

-BP

F2

OS

C

CLK

DA

TA

EN

AB

LE

DA

TA

VS

S

CLK

L-B

PF

2

R-B

PF

1

S-D

C-O

UT

C-D

C-O

UT

R-D

C-O

UT

L-D

C-O

UT

S-I

N

C-O

UT

S-O

UT

R-O

UT

L-O

UT

AC

-GN

D

L-IN

VC

C

VR

EF

R-I

N

R-B

PF

2

L-BPF3

20kΩ

20kΩ

BP

FR

EC

T

RE

CT

VO

L

B-N

R

AD

M

S-R

AM

DE

V

OS

C

VO

L

PG

R L

R

S

S

S

L

R

S

L

RRSC

LL

R L

LOG

DIFF

BFL-

CONT

ADM

-CO

NT

OUT

-FIL

TER

DC-O

UT

STRI

M

VOL/

MUT

E

IN-F

ILTE

R

NOIS

E-FI

L

DATA

-DEC

NOIS

E-G

EN

CH-C

ONT

LOG

DIFF

LR

BP

FR

EC

T

RE

CT

VR

EF

CIR

IM

S-M

OD

E

C-M

OD

E

13P

IN

PG

VC

A

VC

A

VC

A

VC

A

VC

A

VC

A

VC

A

VC

A

VCS

SW2

A B

SW2

A B

SW7

A B

SW7

SW7

A

A

B

A B

B

SW7

SW7

A BA BSW7

A B

A B

SW7SW6

A B

SW5

A B

SW3

A B

SW4

A B

SW7

SW7

A

B

SW4

DS C

B

23PIN

15PIN

61

XR-A770

53 1

7.1.2 DISPLAY

7 XAV3004 (DISPLAY ASSY : V5621)• FL Display

• Pin Assignment

• Grid Assignment

1G 2G 3G 4G 5G 6G 7G 8G 9G

16G

(2G) (2G to 9G) (7G)

(9G) (16G to 10G)

(9G)

s

t

u

w d1 d2

S3

S2

S4

S5

S1

B26 B13

B20 B7

B14 B1

a1 a2

d1 d2D1 D1

D2

a1

f bk

h

r

p

ne c

j

a2 S6 S7

g m

15G 14G 13G 12G 11G 10G

62

XR-A770

• Anode Connection

1G 2G 3G to 6G

P1 – a1 a1

P2 a2 a2

P3 h h

P4 j j

P5 k k

P6 b b

P7 (Left) f f

P8 g g

P9 (Right) m m

P10 (Upper right) c c

P11 e e

P12 r r

P13 p p

P14 n n

P15 (V-CD) d1 d1

P16 d2 d2

P17 s –

P18 (Under) t –

P19 (PBC) u –

P20 w –

P21 – –

P22 – –

P23 – –

P24 – –

P25 D1 D1

P26 – – –

P27 – – –

7G

a1

a2

h

j

k

b

f

g

m

c

e

r

p

n

d1

d2

–

–

–

–

–

–

–

–

D1

D2

S6

8G

a1

a2

h

j

k

b

f

g

m

c

e

r

p

n

d1

d2

–

–

–

–

–

–

–

–

D1

–

–

9G

a1

a2

h

j

k

b

f

g

m

c

e

r

p

n

d1

d2

S7

S2

S3

S4

S5

–

10G to 16G

B14

B15

B16

B17

B18

B19

B20

B21

B1

B2

B3

B4

B5

B6

B7

B8

B22

B23

B24

B25

B9

B10

B11

B12

B26

B13

S1

• Pin Connection

Pin No.

Connection F2

53

F2

52

F2

51

NP

50

NP

49

1G

48

2G

47

3G

46

4G

45

5G

44

6G

43

7G

42

8G

41

9G

40

10G

39

11G

38

12G

37

13G

36

14G

35

15G

34

16G

33

P1

32

P2

31

P3

30

P4

29

P5

28

P6

27

Pin No.

Connection P7

26

P8

25

P9

24

P10

23

P11

22

P12

21

P13

20

P14

19

P15

18

P16

17

P17

16

P18

15

P19

14

P20

13

P21

12

P22

11

P23

10

P24

9

P25

8

P26

7

P27

6

NP

5

NP

4

F1

3

F1

2

F1

1

NOTE 1) F1, F2........... Filament2) NP................ No pin3) DL................. Datum Line4) 1G to 16G..... Grid

63

XR-A770

Fitting

Main Cam

Lock Lever

Note: The loading tray can be pulled out when the main cam is in this position. (The Lock Lever should be in the notch of the Main Cam.)

7.2 DISASSEMBLY

$M MECHANISM CD

2 1 × 3

7 × 2

5 × 3

1 × 3

1 × 3

1

4

6

8

12

3

× 3

1 × 3

Bonnet Case

Unhook

Tray Cap

$M Mechanism CD

11

9

10Release the jumper wire from Cord Stopper.

64

XR-A770

Front Side

$M MECHANISM CD ADDITIONAL TO JOBMechanism Base (Bottom View)

FRONT PANEL

DISPLAY Assy

Front Panel

CD SW LED Assy

AF Assy

FM/AM TUNER MODULE

SUB TRANS Assy

PRIMARY AssySECONDARY Assy

5

4

3

3

2

1

Unhook1

Unhook2

Mechanism Unit

Release the jumper wire from Clip B.

SUB DISPLAY Assy

2

65

XR-A770

FITTING THE PULLEY INTO THE CARRIAGE MOTOR

Clamper Holder

Actuater

Servo Base

Hook

Clamper Holder

$M Mechanism CD

Actuater

Hook

HookServo MechanismAssy

Servo Base

Hook

Carriage Motor

Motor Pulley

Servicing pulley press-in station

Loading Tray

For replacement of the carriage motor, fit the motor pulley by using the servicingpulley press-in station located on the loading tray, as shown in the figure on the right.

1

2

1

2

1

1

2

66

XR-A770

+

TAPEDECK

TAPEDECK

PB

TAPEDECK

FUNCTION

TUNERMODULE

PROLOGICLV1035M

CD$ MECH

AUX(200mV)

(-3.8dB)

(-2dB)

(-8dB)

(+2dB) (-6dB)

-+

-+

-+

5+-

+ +

HA12211NT

HA12136AFDOLBY NR

Vref

Vref

19 14 11

4

+-

Vref

Vref

BASSBLASTERREAR CENTER

TRIM : -10dB

To R ch From R ch

IC3001

DUMMY

LC75396

ZOOMSURROUND

BASSBLASTER

BASSTREBLE

53

55

52

54

50 49 45 46 48 47 35

45 24

22

VR2305

-+

Vref

E

IC3701N

Q2301E IC2301E IC2201E

E

A

B

7.3 BLOCK DIAGRAM

67

XR-A770

-+

-+

FRONTTOTAL GAIN+42dB

POWER AMP2

1

14-+

STK407-090(+40dB)

REARCENTERTWEETER

POWER AMP3

2 1

2 1

1

1 4

7

-+

TDA8560Q(+40dB)(XR-A880 : +9dB)

(XR-A770 : +5dB)

(XR-A880 : +5dB)(XR-A770 : +8dB)

34 33 30

31

28

TAPEDECKREC

TAPEDECK

REC IN + + +

HA12136AF

MPX

DOLBY NRVrefVref VrefVref

-+

HA12211NT

-+

+16 9 27 2

IC2201E IC2301E

VR2301EF2201E

IC3381E

IC3421EIC3951

IC3202

XR-A880 ONLY

IC3201

LPF

HPF

E

IC3203

XR-A770 ONLY

DOLBYPROLOGIC OFF

DOLBYPROLOGIC ON

E

E

E

IC3401L

IC3301E

RY3601

E

CN3991

HEADPHONE

E

68

XR-A770

• PANEL FACILITIES8. PANEL FACILITIES AND SPECIFICATIONS

1 DISC-1 indicator

2 DISC-2 indicator

3 DISC-3 indicator

4 DISC-1 select button



7 DISC CHANGE button

8 OPEN / CLOSE button

9 Display

0 CD disc tray

- CD Function button & indicator

= TUNER / BAND Function button & indicator

~ TAPE I / II Function button & indicator

! AUX Function button & indicator

@ STANDBY indicator

# STANDBY / ON switch

$ TUNNING 1 4 - button *

% TUNNING + ¢ ¡ button *

^ STOP (7) button *

& PLAY / PAUSE , MEMORY button *

* REC / STOP button

( FREQ / STATION button

) ASES / COPY button

_ TAPE I Eject button ( 0)

*÷ This button functions differently with CD, TUNER/BAND or TAPE

I/II function.

**÷ Dolby noise reduction manufactured under license from DolbyLaboratories Licensing Corporation.

÷ “DOLBY” and the double-D symbol are trademarks of DolbyLaboratories Licensing Corporation.

+ TAPE I cassette door

¡ Dolby** Ÿ NR ON/OFF button

™ Volume control (VOLUME)

£ DISPLAY/RDS button

¢ ENTER button

∞ S.M. JOG (Sound Morphing JOG)

§ TIMER / CLOCK ADJ button

¶ PHONES jack (Headphones)

• TAPE II Eject button ( 0)

ª TAPE II cassette door

º BASS BLASTER button & indicator

– PRESET button & indicator

≠ EQUALIZER button & indicator

Ÿ ZOOM SURROUND button & indicator

⁄ BLANCE (DEMO) button & indicator

¤ TIMER indicatorLights in Standby mode when the system has been set fortimer operation.

4 5 6 7 8

¤

0

-

=

~

!

@

#

$

%

_

+

^ & * ) ( ¡ º ⁄ Ÿ ≠ –

ª

•

¢ ¶ ∞

§

£

™

9 1 2 3

69

XR-A770

60 Hzlevel

control

P.BASS ON/OFFbutton/indicator

120 Hzlevel

control

WOOFERLEVEL control

FRONT PANEL For moders XR-A770

Display section

- !756

@

9

$

8 #

0

=%

5 Displays timer function indications.6 Indicates CD function status.7 Lights during recording.8 Lights during ASES operation.9 Lights during Sleep Timer operation.0 Indicates tuner operation status.- Displays a wide range of operation status indications.= Lights when BEAT CUT 2 is selected.! Indicates SOUND MORPHING status.@ Indicates TAPE status.# Displays Audio level, spectrum analyzer and other

indications.$ Indicates CD player operation status.% Lights when the RDS mode is selected.

70

XR-A770

REMOTE CONTROL UNIT

1 2 3

7

8

9

1

6

4

5

3

2

0

!

@#

$

%

-

&

=

~

^

Function button section

1 CD function button2 TUNER/BAND function button3 TAPE I /II function button4 AUX function button5 TUNING [1,4 (–), (+) ¢,¡] buttons6 STOP button ( 7)7 PLAY/PAUSE button ( 2 3)

÷ Roles of the common operation buttons (The rules ofthe buttons vary depending on the input functions asshown below.)

During CD input PLAY/PAUSE: Play/pause button STOP: Stop button

(+) ¢,¡: Fast forward/track search button1,4 (–): Fast reverse/track search button

During cassette deck input PLAY/PAUSE: Play button/Tape transport direction STOP: Stop button

(+) ¢,¡: Fast forward button/Music search button1,4 (–): Rewind button/Music search button

During tuner operationPLAY/PAUSE MEMORY: STATION MEMORY button(+) ¢,¡: Frequency & Station + (up) button1,4 (–): Frequency & Station – (down) button

7 Auto Play FunctionIf you press the CD function button when a CD is loaded, the CDautomatically starts playing. If you press the TAPEI/II function buttonwhen a tape is loaded in the cassette deck, the tape automaticallystarts playing.

NOTE:The function cannot be switched during recording and tape copying.

1

2

34 5 6 7

71

XR-A770

1 OPEN/CLOSE button

2 DISC CHANGE button

3 PGM button

4 SLEEP timer button

5 TAPE I /II function button

6 AUX function button

7 MONO button

8 BASS MODE button

9 MORPHING MODE button & MORPHING jog controlbuttons

0 STANDBY/ON button

- DISC select buttons (1–3)

= CLEAR button

~ Numerical buttonsWhen using for radio station tuning:Pressing these buttons tunes the unit to the frequencies stored inmemory.Examples:

Station 5Station 13Station 20

When using for the CD player:Pressing these buttons lets you directly select the tracks you wantfrom the program you entered.Examples:

3rd track99th track

! REPEAT button

@ RANDOM button

# CD function button

$ BAND buttonUse to switch between FM and AM bands.

% CD/TAPE/STATION (up/down) operation buttons÷ CD operation buttons

(Play/Pause 3/8, Track search 4 ¢, Stop 7, Fast 1 ¡)

÷ TAPE operation buttons(Play 2 3, Music search 4 ¢, Stop 7, Fast 1 ¡)

÷ TUNER buttons+ ........... Stations change in order in the upward direction.– ............ Stations change in order in the downward direction.1 ........ Frequency down.¡ ........ Frequency up.

^ VOLUME 5 (up), ∞ (down) buttons

& DISPLAY button

REMOTE CONTROL UNIT

72

XR-A770

• SPECIFICATIONSContinuous Power OutputXR-A770 Woofer (RMS) ...................................................... 120 W + 120 W

(100Hz, T.H.D. 10 %, 6 Ω) Woofer (DIN) ............................................................ 80 W + 80 W

(100Hz, T.H.D. 1 %, 6 Ω) Tweeter (RMS) ......................................................... 30 W + 30 W

(3 kHz, T.H.D. 10 %, 4 Ω) Tweeter (DIN) .......................................................... 20 W + 20 W

(3 kHz, T.H.D. 1 %, 4 Ω)

÷ Above specifications are for when power supply is 230 V.

Music Power (DIN)XR-A770 Woofer ................................................................. 168 W + 168 W Tweeter .................................................................... 23 W + 23 W

÷ Above specifications are for when power supply is 230 V.

FM/AM Tuner sectionFM tuner sectionFrequency Range ......................................... 87.5 MHz to 108 MHzAntenna input ........................................................ 75 Ω unbalancedAM tuner sectionFrequencyRange ............................................ 531 kHz to 1,602kHzAntenna input ............................................................. Loop antennaCD sectionType ........................................... Compact disc digital audio systemWow and Flutter ............................................. Limit of measurement

(±0.001 % W.PEAK) or less (EIAJ)Cassette deck sectionSystems .................................................... 4 track, 2-channel stereoHeads ................................................. Recording/playback head x 1

...................................................................... Playback head x 1

........................................................................ Erasing head x 1Motor ................................................................. DC servo motor x 1Tape type XR-A770

.................... TYPE I (Normal) tape / TYPE II (HIGH/CrO2) tape

POWER-CORD CAUTIONHandle the power cord by the plug. Do not pull out the plug bytugging the cord and never touch the power cord when your handsare wet as this could cause a short circuit or electric shock. Do notplace the unit, a piece of furniture, etc., on the power cord, or pinchthe cord. Never make a knot in the cord or tie it with other cords.The power cords should be routed such that they are not likely tobe stepped on. A damaged power cord can cause a fire or giveyou an electrical shock. Check the power cord once in a while.When you find it damaged, ask your nearest PIONEER authorizedservice center or your dealer for a replacement.

MiscellaneousPower Requirements ................................. AC 220-230V, 50/60 HzPower Consumption XR-A770 .............................................................................. 230 WPower Consumption in standby mode ....................................... 1 W

Dimensions XR-A770 ..................................... 270 (W) x 380 (H) x 343 (D) mmWeight (without package) XR-A770 ............................................................................... 10 kg

AccessoriesOperating instructions .................................................................... 1Remote control unit ........................................................................ 1Size AA/R6P dry cell batteries ....................................................... 2FM antenna .................................................................................... 1AM loop antenna ............................................................................ 1Power Cord .................................................................................... 1

NOTE:Specifications and design subject to possible modification withoutnotice, due to improvement.

1 2 43 5

KARAOKE

1 2 3

1 Remote control unit x 1 : XZN3007 (CU-XR049)2 FM antenna x 1 : ADH70053 AM loop antenna x 1 : XTB30014 AA/R6P dry cell batteries x 25 Power Cord x 1 : ADG1154 (MYXJ type), ADG1156 (NVXJ type)

For NVXJ type

For MYXJ type

Documents

STEREO CD CASSETTE DECK RECEIVERXR-A770 ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan ... XR-A770/MYXJ and NVXJ are constructed the …