Basic HTML Version
Section 6B • Place Diagnostics In Test 03
SWITCH TROUBLESHOOTING CHART
1SWITCH
Always Actuated
1. Check contacts
2. Check shorted wires
Never Actuates
1. Check adjustment
2. Check broken wires
3. Check for open diode
by jumpering across
diode and actuating.
4-8 SWITCHES
Always Actuated
1. Check adjustments
2. Check shorted wires
on play field or to
2J2,2B
3. Replace Driver Board
Never Actuated
1. Check adjustment
2. Check broken wires on
playfield or 2J2, 2J3
3. Check plug 8Pl/SJl for
broken wires or pushed
out pins
4. Replace Driver Board
ALL SWITCHES
Switch Closure Displays
Multiple Switch Numbers
1. Check adjustments
2. Check shorted wires on
playfield or to 2J2, 213
3. Replace Driver Board
Switch Displays Incorrect No.
1. Check correct switch chart
for game and check adjust-
ment
2. Incorrect wiring on playfield
2J2, 213, or 8Pl/BJI
3. Check Connector keying
1. Check adjustments
2. Check Connectors
2J2, 213, are not
exchanged
3. Replace Driver Board
Section 6C • Place Diagnostics in Test 02
SOLENOID TROUBLESHOOTING CHART
1 SOLENOID
Never Actuates
1. Check solenoid Chart
to verify number
correct and in use
2. Broken wire to solenoid
3. Shorted diode across
solenoid
4. Shorted/burned out
solenoid
5. Open driver for that
solenoid - replace
Driver Board
Always Actuated
1. Shorted wire for that
solenoid
2. Shorted driver for that
solenoid on Driver Board -
replace Driver Board
FLIPPER INOPERATIVE
1. Switch contacts on flipper
button open or out out
adjustment
2. Check Connectors from switch
to back box to driver board
3. Shorted diode across coil
ALL SOLENOIDS
Never Actuated
1. Check for
+
28VDC on
Power Supply fuse 3F2
to ground
2. Check fuse 3F2 on
Power Supply
3. Check Connectors 3J3
and 3J4 on Power Supply
4. Check Connector 2J9, 2J1O,
2J II, 2J12 for broken/shorted
wires.
5. Replace Driver Board
FLIPPERS
FLIPPER WEAK
1. Switch contacts on flipper
button out of adjustment or
pitted contacts.
2. End of stroke switch on solenoid
not adjusted properly
3. Check connections on solenoid and
check for bind