Download pdf - CPU Board Logic Diagram CR EAT D BY: Phil utcher 1J2 1J4 ...zr 6.8 v z en r tp1 r/w tp7 cmos ram b+ d1 7 1n4148 b1 1.5v. +-d18 1n5817 unreg. + v.d .c + 5 v. d. c b2 1 .5v +-b3 1.5v

CPU Board Logic Diagram (System 6) ISSUE NUMBER 4.0 (25 SEP 2010)

CREATED BY: Phi l Butcherwww.f i repowerpinbal l .com

DAT

A B

US

DAT

A B

US

DAT

A B

US

DAT

A B

US

DAT

A B

US

DATA BUSDATA BUS

ADDRESS BUS ADDRESS BUS

AD

DR

ES

S B

US

AD

DR

ES

S B

US

AD

DR

ES

S B

US

AD

DR

ES

S B

US

AD

DR

ES

S B

US

AD

DR

ES

S B

US

AD

DR

ES

S B

US

1J1-5N.C.

1J1-21A0

1J1-20A1

1J1-27A2

1J1-28A3

1J1-29A4

1J1-30A5

1J1-31A6

1J1-32A7

1J1-33A8

1J1-23A9

1J1-13A10

1J1-34A11

1J1-8A12

1J1-24A13

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

1J1-7A14

1J1-35A15

1J1-18D0

1J1-17D1

1J1-16D2

1J1-15D3

1J1-14D4

1J1-12D5

1J1-11D6

1J1-10D7

D0

D1

D2

D3

D4

D5

D6

D7

1J3-4

1J3-3KEY

1J3-2N.C.

1J1-4N.C.

1J1-3N.C.

1J1-2

1J1-1

NOT USED

1211109 161514135678 2 134

NOT USED

4321 876513141516

TP9+5V.

10 91112

TP10GND

SW1DIAGNOSTIC

SWITCH

R334.7K

C34.01

IC24

7400

N.O.

N.C.

1

23

R344.7K

IC24

7400

4

56

C33.01

R2233K

C311.0

+ C30.01

IC56

4

74LS025

12

13 R–

11

9

10

Q52N4403

R233.3K

R956.8K

C32.05

IC76 5

7404

DisIC23½ 556

IC254020

Thr

8Tr

Out

C.V. GND

Q5 Q8

Q10Q7

Q9

MRCPQ0

Vcc

2

1N.C.

N.C.

N.C.

N.C.

N.C.

N.C.

R–

3

5

4

DisIC23½ 556

Thr

6 7Tr GND

Out

C.V.

Vcc14

C63.01

1N.C. 15 N.C.131412

10119

11109 N.C.

2N.C.3N.C.45N.C.6N.C.7N.C.

J6

16

8

C65.01

TP5

IC52

1

74LS02

3

IC11

74LS10

8

IC249

108

7

141J3-1

MEMORY PROTECT

R144.7K C35

.01

J5N.C.

R134.7K

1

R481K

C62470

PFD.

TP4

1J1-40

1J1-36N.C.

1J1-38N.C.

1J1-39

1J1-37BLANKING

1J1-25VMA

1J1-22IRQ'

1J1-19RESET

1J1-26ST6

1J1-6R/W

1J1-9BUS 02

IC48T97

E4E2 GND

Vcc3 2

N.C.

46

101214

579

1113

A0

A1

A2

A3

A4

A5

16

151 8

C6.01

R83.3K

J2

R73.3K

IRQ

'

IRQ

NMIIRQ' IRQ'

NM

I

IRQ IRQ

ST6VMA

RESET

BUS 02

BUS 02 BUS 02

IC38T97

E4E2 GND

Vcc3 246

101214

579

1113

A6

A7

A8

A9

A10

A11

16

151 8

C5.01

R4147K

R392.7K

R3822K R43

2.7K

R42100

Q62N4401

Q42N4403

Q82N4401

Q72N4401

R303.3K

R312.2K

C2710

R4033K

R2922K

D191N4148

CMOS RAM B+

MEMORY PROTECT

+R3210

Q22N4401

Q92N4401 Q3

2N4401

R4722K

Q12N4401

R4622K

R251K

R261K

R2710K

R2810K

ZR23.9V

ZENER

ZR16.8V

ZENER

TP1

R/W

TP7CMOSRAMB+

D171N4148

B11.5V.

+

-

D181N5817

UNREG.+12V.D.C

+5V.

D.C

B21.5V.

+

-

B31.5V.

+

-

1J2-9

N.C. 1J2-8

1J4-4

1J4-3

GND 1J4-2

1J4-1

KEY. 1J2-7

1J2-6

1J2-5

1J2-4

1J2-3

1J2-2

1J2-1

DIA

GN

OS

ITC

SW

. IN

PU

TSG

RO

UN

D

C23100

+ C24.1

MEMORYPROTECT

1

R44470

R45470

C36.01

C37.01

IC51214

7

13

74LS0211

C2.01

IC59

10

74LS028

3

4567

91011121314151617181920

A0

A1

A2A3

A4

A5A6

A7

A8

A9A10

A11

D0

R/W

REBA

MR

VMA

D1

D2D3

D4

D5D6

D7

A15

A14A13

A12

3334

3637

3231

403938

302928272625242322

XTAL

IC16802*

or6808**

Vss1 Vss2

Vcc2 Vcc1

XTAL

HALT

IRQ

NMI

02

RESET *R44.7K

J1**

C2527

PFD.

C2627

PFD.

CR13.58MHZ–

35 2

C1.01

8

C3.01R6

3.3KR233K

IC88T97

E4E2 GND

Vcc 3246

101214

579

1113

A15

A14

A13

A12

16

151 8

C18.01

TP2

1 21

IC98T28

GND

Vcc

DE2 & 4 35 & 7 6

115

9 & 11 10

16

8

C64.01

12 & 14 13

D4

D5

D6

D7

RE

IC108T28

GND

Vcc

DE2 & 4 35 & 7 6

115

9 & 11 10

16

8

C17.01

12 & 14 13

D0

D1

D2

D3

RE IC78 9

7404

14

C7.01

7

R/W R/W

24 22

C16.01

12 21

A7 1 A7A6 2 A6A5 3 A5A4 4 A4A3 5 A3A2 6 A2A1 7 A1A0 8 A0

D0 9 D0D1 10 D1D2 11 D2

D5 15D4 14D3

D7D6

D516 D617

1819

20

23

D7

D4D313

CS4

CS3

A8A8

CS2

Vcc1 Vcc2

CS1GND

IC223624

FPROM6200

ADDRESS

A8

24 22

C15.01

12 21


D0 9 D0D1 10 D1D2 11 D2

D5 15D4 14D3

D7D6

D516 D617

1819

20

23

D7

D4D313

CS4

CS3

A8

CS2

Vcc1 Vcc2

CS1GND

IC213624

FPROM6000

ADDRESS

A8

24 22

C67.01

12 21

A7

A10A9

A12A11

1 A7A6 2 A6A5 3 A5A4 4 A4A3 5 A3A2 6 A2A1 7 A1A0 8 A0

D0 9 D0D1 10 D1D2 11 D2

D5 15D4 14D3

D7D6

D516 D617

1819

20

23

D7

D4D313

CS4

CS3

A8

CS2

Vcc1 Vcc2

CS1GND

IC263624

FPROM6400

ADDRESS

A8

24 21

C12.01

12 18


D0 9 D0D1 10 D1D2 11 D2

D5 15D4 14D3

D7D6

D516 D617

19

20

23

D7

D4D313

A10

A8A9

A10

22A9

CS1

Vcc1 Vcc2

CS2GND

IC142316ROM6000

ADDRESS

A8

24 21

C13.01

12 18


D0 9 D0D1 10 D1D2 11 D2

D5 15D4 14D3

D7D6

D516 D617

19

20

23

D7

D4D313

A10

A8A9

A10

22A9

CS1

Vcc CS3

CS2GND

IC172316ROM7800

ADDRESS

A8

24 21

C14.01

12 18


D0 9 D0D1 10 D1D2 11 D2

D5 15D4 14D3

D7D6

D516 D617

19

20

23

D7

D4D313

A10

A8A9

A10

22A9

CS1

Vcc CS3

CS2GND

IC202316ROM7000

ADDRESS

IC1574LS139

GND

Vcc9101112131415

7654321

16

8

C19.01

J3J4 (NOTE 4)

24 10

C10.01

1 11 13

D0 2 D0D1 3 D1D2 4 D2D3 5 D3D4 6 D4D5 7 D5D6 8 D6D7

A14

12

9 D7

A0

A1

A2

A3

A4

A5

A6

R/W

A023A122

A815A1314

A221A320A419A518A617

16

Vcc CS0

CS1GND

IC166810RAM0080

ADDRESS

CS2 CS5

CS4CS3

R/W

1112 A7

13IC12

7408

12

13 IC1174LS10

12A14

A13

14

C8.01

7

R/W

VMA

BUS 02

32

1IC12

7408

BUS 02

VMA

VMA

TP6

24

C9.01

1 10

D0 2 D0D1 3 D1D2 4 D2D3 5 D3D4 6 D4D5 7 D5D6 8 D6

D7D7 9

A023A0A122A1A221A2A320A3A419A4A518A5A617A6

A815A1314

13

R/W 16

A7 11A14 12

Vcc

GND

IC136810RAM0000

ADDRESS

IC28T28

CS0

CS5CS4CS3

CS1CS2

8R15 ON

DS1DIP SWITCHES

ALL4.7K

ALLIN4148

D16

7R16 D15

6R18 D14

5R17 D13

4D12

3D11

2D10

1D9

8

ON

DS2ALLIN4148

D8

7D7

6D6

5D5

4D4

3D3

2D2

1D1

1R/E

Vcc D/E

RO1

RO2

D1

B1

D2

B2

RO4

RO3

D4

B4

D3

B3

2

43

5

76

14

1213

11

910

1516

C4.01

R11LED 1

100

8GND

COM.

R194.7K

R201K

N.O.SW2INPUT

ENABLESWITCH

R12LED 2

100

A4

CMOS RAM B+

A8

22

C22.01

8 17

A3 1 A3A2 2 A2A1 3 A1A0 4 A0A5 5 A5A6 6 A6A7 7 A7

DI1109

D0111 DI212

D0

D1

D3

D2 A7

A13

D02

DO4 15DI3 14

DO3

ODDI4 16

18

19

21

13

A420R/W

CE1

Vcc

CE2GND

IC195101-1CMOSRAM0100

ADDRESS

IC11

74LS10

R37300K

3

645

TP8 RESET

810

9 IC12

7408TP3

IC271

314

40712

7

R/W

C66.01

IC712 13

7404

1J5-1 D1R94

ALL1K

1J5-2 C1R93

1J5-3 B1R92

1J5-4 A1R91

1J5-5 D2R90

1J5-7 C2R89

1J5-8 B2R88

1J5-9 A2R87

1J5-6KEY

BC

D O

UTP

UTS

312

213

114

411

510

69

78

ALL

4.7KIC28

DIPRESISTORS

C61

C60

C59

C58

C54

C55

C56

C57

ALL470 PFD.

1J6-1 16R86

ALL1K

1J6-2 15R85

1J6-3 14R84

1J6-4 13R83

1J6-5 12R82

1J6-6 11R81

1J6-8 10R80

1J6-9 9R79

1J6-7KEY

1J7-1 8R78

ALL1K

1J7-2 7R77

1J7-3 6R76

1J7-4 5R75

1J7-5 4R74

1J7-6 3R73

1J7-7 2R72

1J7-9 1R71

1J7-8KEY

312

213

114

411

510

69

78

ALL

4.7K IC29

DIPRESISTORS

C46

C49

C50

C51

C52

C53

C48

C47

ALL470 PFD.

C45

C41

C40

C39

C38

C42

C43

C44

ALL470 PFD.

DIS

PLA

Y S

T RO

BE

OU

TPU

TS

IC64 TO 16

DECODER74154

123456789

10111314151617

Vcc24

C21.01

123456789

101112131415

0

1812

G G G

19

20 D

21 C

22 B

23 A

IC186820

PIA I2800 - 2803

PA0PA1PA2PA3

PA4

PA5PA6

PA7

PB0PB1PB2PB3

PB4

PB5PB6

PB7

CB1

CB2

R/W

23456789

10111213141516171819

403938373635343332313029282726252423 ST6

21

A0

A1

A11

A14

A13

CA1CA2IRQAIRQB

RS0

RS1RESETD0

D1D2D3

D4

D5

D6D7

ECS1

CS2

Vcc

Vss CS0

20

1 22

C20.01

IC711

10

7404

64

5

IC127408

VMA

R/W

14

C11.01

7

INTE

RB

OA

RD

CO

NN

EC

TOR

(con

nect

s to

Driv

er b

oard

)

INTE

RB

OA

RD

CO

NN

EC

TOR

(con

nect

s to

Driv

er b

oard

)

NOTES:1. ALL RESISTORS 1/4W UNLESS OTHERWISE INDICATED.2. ALL CAPACITORS ARE MFD UNLESS OTHERWISE INDICATED.3. *WITH 6802 FOR IC1, IC13 MAY BE REMOVED AND MPU

INTERNAL RAM ENABLED BY ADDING R4 AND REMOVING JUMPER J1. ** WITH 6808 FOR IC1, IC13 MUST BE USED, R4 NOT USED, AND JUMPER J1 MUST BE CONNECTED.

4. WHEN IC14 GAME ROM IS USED IN PLACE OF PROMs JUMPER J3 MUST BE CONNECTED AND J4 REMOVED (IC ADDRESS 600016). WHEN IC14 GAME ROM AND PROMs AREUSED JUMPER J4 MUST BE CONNECTED AND J3 REMOVED (IC ADDRESS 680016).

1J2LOGIC POWER BUS INPUT

Grey/White (Logic B+ [+12 V Unregulated]) 9

N/C (Not used) 8

KEY 7

Grey (Logic B+ [+5 VDC]) 6



Black (Logic Ground) 3



Violet/Brown (Display Strobe #9) 9

Violet/Red (Display Strobe #10) 8

KEY 7

Violet/Orange (Display Strobe #11) 6

Violet/Yellow (Display Strobe #12) 5

Violet/Green (Display Strobe #13) 4

Violet/Blue (Display Strobe #14) 3

Violet/Black (Display Strobe #15) 2

Violet/Grey (Display Strobe #16) 1

Brown/Black (Display Strobe #1) 9

KEY 8

Brown/Red (Display Strobe #2) 7

Brown/Orange (Display Strobe #3) 6

Brown/Yellow (Display Strobe #4) 5

Brown/Green (Display Strobe #5) 4

Brown/Blue (Display Strobe #6) 3

Brown/Violet (Display Strobe #7) 2

Brown/Grey (Display Strobe #8) 1

Blue/Green (Display BCD A2) 9

Blue/Black (Display BCD B2) 8

Blue/Violet (Display BCD C2) 7

KEY 6

Blue/Grey (Display BCD D2) 5

Blue/Brown (Display BCD A1) 4

Blue/Red (Display BCD B1) 3

Blue/Orange (Display BCD C1) 2

Blue/Yellow (Display BCD D1) 1

1J5MASTER DISPLAY BCD OUTPUTS

1J6MASTER DISPLAY STROBE OUTPUTS

1J7MASTER DISPLAY STROBE OUTPUTS

Blue (Display BCD A2) 4

Green (Display BCD B2) 3

White (Display BCD C2) 2

Black/Red (Display BCD D2) 1

1J4MEM. PROTECT & DIAGNOSTIC SW.

Blue/White (Display Blanking) 4

KEY 3

N/C (Not used) 2

N/C (Not used) 1

1J3DISPLAY BLANKING

TP1 +12V. UNREG TP3 MEMORY PROTECT

INTERLOCKCLOSED

INTERLOCKOPEN

+5V.

0V.

TP2 NMI

DIAGNOSTICSWITCH

DEPRESSED

+5V.

0V.

TP4 BLANKING

NORMALOPERATION BLANKING

+5V.

0V.

TP5 IRQ

DIAGNOSTICSWITCH

DEPRESSED

+5V.

0V.30uS

1MS

TP6 BUS 02+5V.

0V.1.1uS

TP7 CMOS RAM B+POWER ON 4.3V.POWER OFF 3.9V.

TP8 RESET

POWERTURN ON

+5V.

0V.

1MSTP9 +5V. TP10 GND

For the following indications of the LEDs, proceed as follows:Indicates ROM/PROM failure; one or more ofIC17, IC20, IC21, IC22, and IC26 are faulty.

OFFON

Indicates RAM failure (IC13 or IC16).ONOFF

Indicates CMOS RAM (IC19) failure. ONON

LEDs REMAIN ON AFTER POWER TURN-ONa) Check +5 VDC and Unregulated Logic B+ on CPU

and Power Supply boards. If low: i) Check AC input from transformer.ii) Check wiring from transformer to 3P1 (Power Bus Inputs)

-10, -11 and -12.iii) Check 3D6 and 3D7.iv) Replace Power Supply Board

b) Turn game OFF and completely remove Driver Board from the backbox. Reapply power and depress the DIAGNOSTIC pushbutton on the CPU board.If the LEDs blink twice and then remain OFF, replace the Driver Board. Otherwise, replace the CPU board.

LEDs DO NOT FLASH AND REMAIN OFF WHEN DIAGNOSTICSWITCH DEPRESSEDa) Turn game OFF and back ON.b) If problems persist, check +5 VDC from power supply, if ok, replace the CPU board.

INTERMITTENT OPERATIONa) Make checks described above (for LEDs remaining on after power turn-on).b) Replace CPU board.

GAME COMES UP IN TEST 04 WHEN TURNED ONa) Check battery voltage from the Anode of 1D17 to ground, if less than

3.9 VDC, replace batteries. b) Check battery voltage from Cathode of 1D17 to ground, if less than

3.2 VDC, replace diode.