Midway 4-Player 25" Dedicated Video Game - Manual (Page 63)

Diagnostic, Audit & Adjustment Menu System for NBA 4-9
Main Menu (continued)
Diagnostics Menu (continued)
Switch Tests Menu
SWITCH TESTS
Select SWITCH TESTS at the Diagnostics Menu. Switch Tests verify proper operation of the game’s
switches, including buttons and joystick switches.
Activate each switch, and the indicator on the menu changes state. Release the switch and the indicator
returns to its previous, normally open or closed condition. You can test any combination of switches
together. To exit the test, simultaneously press the middle two control buttons inside the coin door. The
Switch Test Menu refers to these buttons as “volume buttons.”
PLAYER SWITCH INPUTS TEST
P1 UP T T P3 UP T T LEFT COIN T T
P1 DOWN T T P3 DOWN T T RIGHT COIN T T
P1 LEFT T T P3 LEFT T T P1 START T T
P1 RIGHT
T T
P3 RIGHT
T T
SLAM/TILT
T T
P1 SHOOT
T T
P3 SHOOT
T T
TEST
T T
P1 PASS
T T
P3 PASS
T T
P2 START
T T
P1 TURBO
T T P3 TURBO
T T SERVICE CREDIT
T T
CENTER COIN T T
P2 UP
T T
P4 UP
T T
EXTRA COIN
T T
P2 DOWN
T T P4 DOWN
T T P3 START
T T
P2 LEFT
T T P4 LEFT
T T P4 START
T T
P2 RIGHT T T P4 RIGHT T T VOLUME DOWN T T
P2 SHOOT T T P4 SHOOT T T VOLUME UP T T
P2 PASS T T P4 PASS T T
P2 TURBO T T P4 TURBO T T BILL VALID. T T
P1 49 WAY P2 49 WAY P3 49 WAY P4 49 WAY
24 24 24 24
PRESS BOTH PLAYER 1 AND PLAYER 2 START BUTTONS TO EXIT
SWITCH TEST MENU
Switches appear on the menu as colored boxes. Red boxes indicate an open state. Green indicates
closed. Any other color indicates a fault condition. A single indication on the menu should exactly
duplicate a button or joystick change. You’ll notice a unique number for a switch recognized by game
electronics.
Use Switch Tests to locate crossed wires, intermittent conditions and stuck switches.
NOTICE: Some switches may not be used with this game. If you can’t find one of the
listed switches, check the wiring diagram.