Star Tech Journal

27
APRIL 1984
If the preceding procedures for troubleshoot-
ing the Master and Slave PCB are successful,
then there should be enough of the game
circuitry working to perform the Self-Test
procedures.
SIGNATURE ANALYSIS
The software necessary to perform signature
analysis is not available in this game.
TABLE 1 ADDRESS LINES
Logic State for
Address AAAA
IC-Pin
Master
Slave
28-16
28-3
28-7
18-3
18-9
28-18
28-5
28-14
28-12
28-9
20-12
20-16
20-9
20-5
20-14
20-7
20-18
20-3
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
3D-18
18-7
18-5
1 B-16
18-14
1 B-12
10-3
10-5
10-7
1C·9
1C·18
10-16
10-14
10-12
TABLE
IC-Pin
Master
Slave
1F·11
1F·12
1F·13
1F·14
1F·15
1 F-16
1F·17
1 F-18
2H/J·9
2H/J·8
2H/J·7
2H/J·6
2H/J·5
2H/J·4
2H/J·3
2H/J·2
Addreaa Line
Logic State for
Address 5555
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
a
DA'tA
Master
Slave
PABA15
PABA14
PABA13
PABA12
PABA11
PABA10
PABA9
PABA8
PABA7
PABA6
PABA5
PABA4
PABA3
PABA2
PABA1
PABAo
PBBA15
PBBA14
PBBA13
PBBA12
PBBA11
PBBA10
PBBA9
PBBA8
PBBA7
PBBA6
PBBA5
PBBA4
PBBA3
PBBA2
PBBA1
PBBA0
LINE ■
Logic State for
Data AA
Logic State for
Data55
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
Data Line
Master
Slave
PABD7
PABD6
PABD5
PABD4
PABD3
PABD2
PABD1
PABD0
EPBBD7
EPBBD6
EPBBD5
EPBBD4
EPBBD3
EPBBD2
EPBBD1
EPBBD0
TABLE 3 ADM CHECKSUMS
ROMTested
Location
Address
Checksum
136023-501
136023·502
136023-503
2D
2F
2H/J
4000
6000
8000
A0OO
136023-504
2K
136023-509
136023-510
136023-511
136023-512
136023-513
136023-514
136023-515
1E/F
1 F/H
1J
1K
1L
1M
1N
164C*
24D4*
463F*
5blb*
7776*
EF30*
dEbE**
C9F0**
F394**
298E**
cooo
EOOO
2000
4000
6000
8000
AOO0
84AA**
cooo
6CA0**
4FCC**
E000
PCB Under
Test
Master
Master
Master
Master
Master
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
* If this checksum is unstable or does not verify, connect a 220-pF capacitor from
pin 6 and a 220-pF capacitor from pin 7 of IC 1 J to ground. Remove the
capacitors after the checksum troubleshooting is completed.
** If this checksum is unstable or does not verify, connect a 1000-pF capacitor
from pin 13 and a470-pF capacitor from pin 12 of IC 2K to ground. Remove the
capacitors after the checksum troubleshooting is completed.
INGUIZITIVE
ANSWERS:
MARCH
83. b
84. d
85. c
EJTHER
WORDS
The names of Space Ace villains comprise
this issue's word puzzle. Find and encircle
these words as they appear below. They
run vertically, horizontally, diagonally and
sometimes backwards.
SPACE ACE VILLAINS
BORF
GROOTES
SQUIDANTS
SHAG
GRUMLETS
DROIDS
BABALOONS
HEXTER
CARNICULA
RIKYGXGVRF
QKJAMQHNAB
BCHRBUOUJC
XSQUIDANTS
FFCOCGBHIN
VWYGAOFQMS
IUBKRKCHGK
TFTFNPLSMV
VLEAIMKDWG
RJQRCZWIUE
EFUCULKOLG
TDNTLOHRAB
XASQANXDAC
ESUTXPIBQB
HBEOEMABVC
BMVTWLMMOD
OPXTOMMZLC
ZDBOAOGUGH
UANVAJRMRB
VSZLLOOGAG
Here is the answer key
to March's puzzle:
VIDEO GAME COMPONENTS