R

JY-70B (NTSC M / M)

JY-70C (PAL B / G,H)

JY-70I (PAL B / G)

JY-70N (PAL B / G,H)

(KX-516)

(without price)

JUL. 1998

CONTENTS

Page

SPECIFICATIONS..................................................................................... 1

BLOCK DIAGRAM.................................................................................... 2

PRINTED CIRCUIT BOARDS ................................................................... 3

PARTS LIST .............................................................................................. 7

EXPLODED VIEW ................................................................................... 11

SCHEMATIC DIAGRAMS ....................................................................... 12

WAVEFORMS ......................................................................................... 16

— 1 —

Item Specification

1. Power voltage DC 6.0 V

JY-70B Approx. 3.6 W2. Power consumption

JY-70C/N/I Approx. 3.3 W

JY-70B Approx. 600 mA3. Current consumption

JY-70C/N/I Approx. 550 mA

JY-70B Approx. 3.5 hours4. Battery life (with alkaline batteries)

JY-70C/N/I Approx. 4.0 hours

Batteries : 4 × LR6 (D) size batteries

5. Power supply Car adaptor : CA-K65

AC adaptor : AD-K64

Earphone jack : 3.5 ø mini

External power jack : 6.0 V DC IN6. Connection terminal

External antenna jack : 3.5 ø mini(only JY-70C)

Audio / Video jack : 3.5 ø mini

7. Screen size 2.3 inches

8. Number of picture elements 39,600 (360 × 110) dots

9. Dimension 126 mm (W) × 39 mm (D) × 78 mm (H)

10. Weight Approx. 220 g without batteries

SPECIFICATIONS

Model Color System TV System Channel

JY-70B NTSC M/M US VHF: 2 ~ 13 ch UHF: 14 ~ 69 ch

JY-70C/N PAL B/G,H CCIR VHF: 2 ~ 12 ch UHF: 21 ~ 69 ch

JY-70I PAL B/G ITALY VHF: A ~ H2 ch UHF: 21 ~ 69 ch

— 2 —

Antenna

1 TU200 2 Q2003 IC200

7

TuningVoltageGenerator

VR600

VolumeControl

4 IC600 Speaker

IC300

IC700

CommonDriver

LCD

SegmentDriver

ChromaCircuit

Osc.Display ControlA-D ConverterAuto-Tuning Control

5

6

8 Q800 ~ Q803, Q805, Q806VR800

DisplayVoltageGeneratorBrightness

Control

VCC2 (3.95 ± 0.02 V)VCC7 (34.2 ~ 41.8 V)VEE1 (– 6.03 ~ – 7.37 V)

IC500

PowerSupply

AudioAmp.IF Amp.Tuner

VideoSound Det. FMAFT CircuitAGC Circuit

1 — Color Tuner: TU200 TEAA1(JY-70B) / TEPE5-01(JY-70C/N/I)Selects a desired radio wave and changes it to the video IF signal.

2 — Video IF Amp.: Q200 2SC3082Amplifies the video IF signal output from the tuner TU by 10 times (20 dB).

3 — Video Det./Sound Det./FM Det./AFT/AGC: IC200 M51348FPEliminates the carrier wave in the video IF signal, and picks up the video signal and the sound IF signal.Also, the sound signal is picked up from the sound IF signal by FM detection.

4 — Audio Amp.: IC600 NJM2070MSound amplification.

5 — Chroma Circuit: IC300 M52042FPGenerates the tricolor (red, green, and blue) from the video signal.

6 — Osc./A-D Converter/Display Control/ Auto-Tuning Control : IC700 ML9661GA-6006Converts the color signal into a digital signal.Also, generates the clock pulse for the display and controls the display.

7 — Tuning Voltage Generator: IC500 BA10358FGenerates the tuning voltage with the tuning pulse (TU) output from 6.

8 — Display Voltage Generator: Q800 ~ Q803 Q805 Q806 2SD1819A, 2SB1218A, 2SD1149SGenerates the display voltages V0 ~ V4 with VEE1 and VCC7 outputs from the power supply.

BLOCK DIAGRAM

— 3 —

PRINTED CIRCUIT BOARDS

AD-PCB(JY-70B/C/N/I)

Top View

Bottom View

— 4 —

L-PCB(JY-70B)

Top View

Bottom View

— 5 —

L-PCB(JY-70C/N/I)

Top View

Bottom View

— 6 —

BL-PCB(JY-70B/C/N/I)

Top View

Bottom View

PARTS LISTJY-70B: NTSC (USA,Others)JY-70C: PAL (Others)JY-70I: PAL (Itary)

AD PCB ASS'Y JY-70N: PAL (Europe,Germany)

Item Code No. Parts Name Specification Applicable Q R

Connector

3502 2214 CONNECTOR 52435-2291 JY-70 common 1 X3502 2425 CONNECTOR 52271-1490 JY-70 common 1 X3502 2426 CONNECTOR 52288-0211 JY-70 common 1 X

ICs

2012 6038 LSI ML9661GA-6006 JY-70 common 1 C2114 2464 IC / LINEAR NJM2070M-T1 JY-70 common 1 C2114 3311 IC / LINEAR M52045FP-T1 JY-70C/I/N common 1 C

2114 3458 IC S-81230SG-QB-T1 JY-70 common 1 C2114 5853 IC TK11239BMCL JY-70B common 1 C2116 0119 IC BA10358F-T1 JY-70 common 1 C

Jacks3501 3773 JACK HSJ6063-01-410 JY-70 common 1 C3501 5439 JACK HSJ1456-01-210 JY-70 common 1 C

Transistors2251 0189 TRANSISTOR / CHIP 2SB1218A-R(TX) JY-70 common 2 B2253 0133 TRANSISTOR / CHIP 2SD1819A-R(TX) JY-70 common 2 B2253 0476 TRANSISTOR / CHIP 2SD1149-S(TX) JY-70 common 1 B

Switch3412 1848 SWITCH / TACT SKQGAA JY-70 common 1 C

Variable Resistors

2765 0616 VOLUME RK09H11T-10KB JY-70 common 1 C2765 0623 VOLUME RK09H11T-20KB JY-70 common 1 C

Oscillator2590 2717 OSCILLATOR HD-49-4.43M JY-70C/I/N common 1 C2590 2731 OSCILLATOR HD-49-3.58M JY-70B common 1 C

Notes : Q - Quantity used per unitR - Rank

— 7 —

LINEAR PCB

Item Code No. Parts Name Specification Applicable Q R

Diodes2390 1183 DIODE/CHIP MA143A-(TX) JY-70B common 1 C2390 1190 DIODE ERA15-01Y JY-70 common 1 C2390 1470 DIODE/CHIP MA142WK-(TX) JY-70 common 1 C7101 1194 DIODE/CHIP MA111(TX) JY-70B common 3 C7101 1194 DIODE/CHIP MA111(TX) JY-70C/I/N common 2 C

Fuse2797 5598 FUSE/CHIP PI-R429.750 JY-70 common 1 B

ICs2114 1827 IC/LINEAR M51348FP-T1 JY-70 common 1 C2114 3150 IC MB3776APNF-EF JY-70 common 1 C2114 5853 IC TK112939BMCL JY-70B common 1 C

Jacks3501 5439 JACK HSJ1456-01-210 JY-70 common 1 C3501 8281 JACK HEC0811-010010 JY-70 common 1 C

Transistors2251 0189 TRANSISTOR/CHIP 2SB1218A-R(TX) JY-70B common 2 B2252 1050 TRANSISTOR/CHIP 2SC3082K-T146Q JY-70 common 1 B2253 0133 TRANSISTOR/CHIP 2SD1819A-R(TX) JY-70B common 4 B2253 0133 TRANSISTOR/CHIP 2SD1819A-R(TX) JY-70C/I/N common 1 B2253 0308 TRANSISTOR/CHIP 2SD1119-R(TX) JY-70 common 1 B

Switch3412 0938 SWITCH/SLIDE ESD11V231 JY-70 common 1 C

Converter

3065 0715 CONVERTER/DC-DC LC128-16 JY-70B common 1 B3065 0672 CONVERTER/DC-DC LC12U-40 JY-70C/I/N common 1 B

Tuner

1014 9890 TUNER TEAA1-001A JY-70B common 1 C1013 5315 TUNER TEPE5-01 JY-70C/I/N common 1 C

BL PCB ASS'Y

Item Code No. Parts Name Specification Applicable Q R

Transistors2253 0287 TRANSISTOR 2SD965-R JY-70 common 1 B

Transformer3012 1588 INVERTER TRANS C-8123 JY-70 common 1 B

Notes : Q - Quantity used per unitR - Rank

— 8 —

COMPONENT

Item Code No. Parts Name Specification Applicable Q R

1 6613 1891 PCB ASSY/LINEAR/A/D K341072*2 JY-70B common 1 B1 6613 2866 PCB ASSY/LINEAR/A/D K341072*3 JY-70C/N/I common 1 B2 6613 1895 CASE/UPPER/GREEN K240876*2 JY-70B/C/N common 1 C2 6613 1896 CASE/UPPER/ORANGE K240876*3 JY-70B/C/N common 1 C2 6613 2859 CASE/UPPER/GREEN K240876*4 JY-70I common 1 C2 6613 2861 CASE/UPPER/ORANGE K240876*5 JY-70I common 1 C3 2725 1348 LCD MODULE CMG23CO-TO JY-70 common 1 B4 3851 2093 LAMP/FLUORESCENCE 3064BB-CA48 JY-70 common 1 A

4-1 6612 9720 CASE/REFLECTOR K140418-1 JY-70 common 1 X5 6613 0003 PCB ASSY/BL K341109*1 JY-70 common 1 B

5-1 6612 9930 CABLE/BL K441248-1 JY-70 common 1 X6 6612 9730 PLATE/DIFFUSION K340975-1 JY-70 common 1 X7 6613 1910 PLATE/DISPLAY K340978-2 JY-70B common 1 X7 6613 2910 PLATE/DISPLAY K340978-3 JY-70C common 1 X7 6613 2920 PLATE/DISPLAY K340978-4 JY-70I/N common 1 X8 6612 9680 KNOB/POWER/FOR GREEN K340972-1 JY-70 common 1 C8 6613 2090 KNOB/POWER/FOR ORANGE K340972-2 JY-70 common 1 C

8-1 6612 9790 SLIDER/SWITCH K240804-1 JY-70 common 1 C 8-2 6612 9800 RAIL/SWITCH/FOR GREEN K240805-1 JY-70 common 1 X 8-2 6613 2100 RAIL/SWITCH/FOR ORANGE K240805-2 JY-70 common 1 X

9 6612 9690 BUTTON/TUNING/FOR GREEN K340973-1 JY-70 common 1 C9 6613 2070 BUTTON/TUNING/FOR ORANGE K340973-2 JY-70 common 1 C

9-1 6612 9710 GUIDE/TUNING BUTTON/FOR GREEN K340974-1 JY-70 common 1 X 9-1 6613 2080 GUIDE/TUNING BUTTON/FOR ORANGE K340974-2 JY-70 common 1 X10 3831 1078 SPEAKER T028S14A0020 JY-70 common 1 C11 6612 9921 CABLE/FLAT K441247A-1 JY-70 common 1 X12 3851 2091 ANTENNA/STRAP/FOR GREEN SA-1310-1 JY-70 common 1 C12 3851 2100 ANTENNA/STRAP/FOR ORANGE SA-1310-2 JY-70 common 1 C13 6612 9700 COVER/ANTENNA/GREEN K240800-1 JY-70 common 1 X13 6613 2180 COVER/ANTENNA/ORANGE K240800-2 JY-70 common 1 X14 6613 0140 CAP/DISPLAY/GREEN K341063*1 JY-70 common 1 C14 6613 2900 CAP/DISPLAY/ORANGE K341063*2 JY-70 common 1 C15 6612 9880 CORD/CAP/FOR GREEN K441265*1 JY-70 common 1 X15 6613 1900 CORD/CAP/FOR ORANGE K441265*2 JY-70 common 1 X16 6612 9660 GRIP/FOR GREEN K240798-1 JY-70B/C/N common 1 X16 6613 2110 GRIP/FOR ORANGE K240798-2 JY-70B/C/N common 1 X16 6613 3080 GRIP/FOR GREEN K240798-3 JY-70I common 1 X16 6613 3090 GRIP/FOR ORANGE K240798-4 JY-70I common 1 X17 6612 9840 HOOK/STRAP K340980-1 JY-70 common 2 X18 6613 0123 CASE/LOWER/GREEN K240868*1 JY-70 common 1 X18 6613 1888 CASE/LOWER/ORANGE K240868*2 JY-70 common 1 X

18-1 6609 9061 SPRING/BATTERY K440159A-1 JY-70 common 1 X 18-2 6609 9071 SPRING/BATTERY K440243A-1 JY-70 common 1 X 18-3 6020 7658 SPRING/BATTERY P408A-1 JY-70 common 1 X 18-4 6020 7666 SPRING/BATTERY P409A-1 JY-70 common 1 X

19 6612 9630 COVER/BATTERY K240797-1 JY-70 common 1 C20 6612 9740 STAND/GREEN K340976-1 JY-70 common 1 C20 6613 2170 STAND/ORANGE K340976-2 JY-70 common 1 C

Notes : Q - Quantity used per unitR - Rank

— 9 —

Item Code No. Parts Name Specification Applicable Q R

21 6612 9750 HOLDER/STAND K340977-1 JY-70 common 1 X6609 9680 COVER/JACK K340237-1 JY-70B/I/N common 1 C6608 0922 LABEL K411564B-2 JY-70B common 1 X6613 1920 PLATE/RATING/GREEN K441267-2 JY-70B common 1 X6613 1930 PLATE/RATING/ORANGE K441267-3 JY-70B common 1 X6613 1940 LABEL K441486-1 JY-70 common 1 X

E1 5861 3683 E-RING E-1.5 JY-70 common 2 XS1 5860 3381 SCREW PS3 1.7X4 BK JY-70 common 2 XS2 5860 0420 SCREW BT3 1.7X4 NI JY-70 common 8 XS3 5860 3549 SCREW BT3 1.7X10 NI JY-70 common 2 XS4 6604 9980 SCREW K410188-1 JY-70 common 2 XS5 6630 7430 SCREW K440305-1 JY-70 common 3 X

Notes : Q - Quantity used per unitR - Rank

— 10 —

— 11 —

EXPLODED VIEW

14

3

6

S2

S2

1S2

S3

S4

21

12

11

15

17

16

7

S1

10

E1

2

18

S2

19

S2

E1

17

5

8

4

S5

S2

20

S2

13

9

18-4

4-1

9-1

18-3

18-1

18-2

5-1

8-1

8-2

— 12 —

SCHEMATIC DIAGRAMS

AD CIRCUITAD-CIR-K0516 (JY-70B/C/N/I)

10

12

11

4

8

7 6 5

Chroma Circuit

A/V Jack

Tuning Voltage GeneratorCircuit

Audio Amplitier Circuit

Speaker

EarphoneJack

To L-P

CB

To B

L-PC

B

Display Voltage GeneratorCircuit

To

LCD

Display ControllerCircuit

— 13 —

LINEAR CIRCUITL-CIR-K0516 (JY-70B)

12

3

IF Pad

ExternalAntennaJack

Tuner

DC in

IF Detection Circuit

Power Supply Circuit

To

AD

-PC

B

ToBatteries

9

— 14 —

LINEAR CIRCUITL-CIR-K0516 (JY-70C/N/I)

12

3

IF Pad

ExternalAntennaJack

Tuner

DC in

IF Detection Circuit

Power Supply Circuit

To

AD

-PC

B

ToBatteries

9

— 15 —

BACK LIGHT CIRCUITBL-CIR-K0516 (JY-70B/C/N/I)

— 16 —

WAVEFORMS

3.0

mV

3.0

V63.5 µs 63.5 µs 63.5 µs

160

mV

12 V

3.2

V

540 ns

1 Q200 Collector 2 IC200 Pins 19, 20

5 IC300 Pins 10, 11, 12

3 IC200 Pin 18

6 IC300 Pin 5

9 Q111 Collector

4 IC300 Pin 23

0 IC700 Pin 9 B IC700 Pin 8A Q806 Base

8 IC300 Pin 17 IC300 Pin 4

0.6

V

0.24 µs

3.3

V

63.5 µs

1.4

V

63.5 µs

0.9

V

63.5 µs 63.5 µs 8.5 µs

130 µs 63.5 µs

600

mV

3.2

V

750

mV

CASIO TECHNO CO.,LTD.Overseas Service Division

8-11-10, Nishi-ShinjukuShinjuku-ku, Tokyo 160-0023, Japan