MIDWAY
"Omega Race"
Troubleshooting Guide
N'fUl\l
CE
" p h Oen\
. ,, tnissed credit probh\e:•pu\se frotll the
• f or "Phoenix
,, d ue to a s o
lu{ dificauon
d·t counts '
inO
... ~- ed ere i
.
"1niSS
\\oWlU\1,· .
To corre~t
erforrn the fo
pU board.
i w ±5%-
.
d Rl1 on the C
410 ohtn /4
ratnic disc.
h te switch, p
cu
C3 an
00 ohtn to
tnfd 12V, ce
1 Locate Ic4,_ o; Rl 1 frotn 1 41tnfd to 0.2
• Change resist.
C3 frotn 0.0
hown beloW-
2.
acitor
Rl 1 as s
GAME:
"OMEGA RACE"
SUBJECT:
GENERAL
TROUBLESHOOTING
i
,.
·x'' cred,t Mod.
~ ~::r;;~os.•;~00000000
1. Game inoperative ( dead).
Check following:
A. 117V AC outlet & line cord: ·
B. Line fuse (3 amps).
C. Safety switch.
D. Connectors & wiring.
J
\0000000~
2. Game operates properly with loss of
sound.
Check following:
A.
B.
C.
D.
E.
F.
Fuse (2 amps).
Volume control settings.
Speakers (two).
Connectors & wiring.
Audio voltage ( l 2VDC).
Repair or replace game logic board.
(PC A084-9 l 372-D929)
3. Game operates properly with loss of
video.
Check following:
A.
B.
C.
D.
Parts List
C3 50040050 o
Rl 7 50030010 47tmfd, 12V, Ceramic disc
DB 50100014 1N9ohm,_¼w, 5%
If
• .
14 Diode
additional infonnation i
.
Centuri Customer S . s reqmred, please call
erv1ce at 1-800-327-7710.
Monitor fuses (five).
Connectors & wiring.
Monitor voltage.
Repair or replace X-Y monitor.
(G05-802)
4. Game and video fails to operate ( display
lamps are on).
Check following:
A. Logic+5VDC fuse (3/8 amp).
B. Connectors & wiring.
C. Repair or replace power supply.
(PC A082-90415-B0OO)
D. Repair or replace mother board.
(PC A084-90007-E929)
NOTE-The LED on mother board when
lit indicates+5VDC.
STERN
"Berzerk" Alternate Joystick
BY GARDEN STATE GAMES, UNION, NJ
The problems with the "Berzerk" Joystick are too numerous to mention. Here is a
modification that works quite well.
WIRING TABLE
PIN FUNCTION
1 Ground
2
Key
3
Down
4
Right
5
+5v
6
7
Up
Left
JOYSTICK WIRING
P1 CONNECTOR
1234567
KDR5UL
E O I v P E
Y W G
F
...L
N H
T
-
T
DOWN
RIGHT
UP
LEFT
Cut the wires from connector JI one at a time and solder them to the normally open side
of each corresponding Joystick switch. The ground or common of each switch is bussed
together and connected to system ground. The +5v LINE IS NOT NEEDED, fold it
and tape it back .
••••••••••••••••••••••••••••••
S•TJ OCTOBER 1981 3