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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
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
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
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
19
20
23
D7
D4D313
A10
A8A9
A10
22A9
CS1
Vcc1 Vcc2
CS2GND
IC142316ROM6000
ADDRESS
A8
24 21
C13.01
12 18
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
19
20
23
D7
D4D313
A10
A8A9
A10
22A9
CS1
Vcc CS3
CS2GND
IC172316ROM7800
ADDRESS
A8
24 21
C14.01
12 18
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
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
Grey (Logic B+ [+5 VDC]) 5
Grey (Logic B+ [+5 VDC]) 4
Black (Logic Ground) 3
Black (Logic Ground) 2
Black (Logic Ground) 1
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.
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