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ERROR MESSAGES
The WPC game program has the capability to aid the operator and service personnel
At Game Turn-on,
or after pressing the Begin Test switch, (once the game has been operating for an extended period),
the display may signal with the message,
"Press ENTER for Test Report"
This indicates the game
program has detected a possible problem with the game.
To obtain details of the problem, open the coin door and press the Begin Test SWitch. Press the Enter
button to begin displaying the message(s).
The following messages apply to your game.
Check Switch
##.
This message indicates that at least one switch was stuck 'On' at game turn-on or has NOT been
actuated during ball play (for 90 balls or ~30 games).
The game program compensates the
game play requirements aHected by each disabled switch to allow 'nearly normal'
play.
This
helps keep the game earning, until the service technician can repair the problem
To verify the problem, refer to the Test Menu text describing Switch Testing, and check each
reported switch using applicable switch tests. Always check switch operation using a ball, to
simulate game conditions.
Switch problems may often be resolved by adjusting the wire switch
actuators,
fixing switch circuitry problems,
securing loose connectors,
etc. Mechanisms using
'opto switches'
(drop targets, etc.) need to be checked for proper power connections (+ 12V dc
and ground)
Pinball Missing.
This game normally uses three balls: however,
it will operate with one ball
This message
announces that a ball is missing or stuck. When the ball is located, return it to the game via the
Outhole Other possibilities for this problem could be malfunctions of the Ball Trough SWitches
or the Ball Shooter switch.
xxxxx Sw. is Stuck On.
This message indicates that a switch, which is not usually On, remains in the On position after
the game is switched On. The stuck switch is essential
for game play (for example, a coin chute
switch, the slam tilt switch, the plumb bob tilt switch), and should be cleared to permit proper
game operation.
Ground Short Row-N, Wht-xxx.
This message Indicates that the switch wires being called out are touching a grounded part on
the playfield or coin door. The following should be checked
1. Slam Tilt (or other coin door) switch touching the grounded coin door.
2. A leaf-type, playfield switch touching a grounded part.
3. Players poking metallic objects (wires, coat hanger, etc.) into the game
4. Switch cable insulation pierced or damaged allowing bare wire contact with a grounded part
5. All switches in a row closing at the same time Note This instance is NOT a switch problem:
however, for most games this is a very rare possibility.
U6 Checksum Error.
The game ROM checksum is invalid If this occurs replace the game ROM.
DOCTOR WHO 1-45