Basic HTML Version
Section 6B - Place Diagnostics in Test 03
SWITCH TROUBLESHOOTING CHART
I SWITCH
Always Actuated
I. Check contacts
2. Check shorted wires
Never Actuates
I. Check adjustment
2. Check broken wires
3. Check for open diode
by jumpering across
diode and actuating.
4-S SWITCHES
Always Actuated
I. Check adjustments
2. Check shorted wires
on playfield or to
2J2, 2]3
3. Replace Driver Board
Never Actuated
I.
Check adjustment
2. Check broken wires on
playfield or 2J2, 2]3
3. Check plug SPI/SJI for
broken wires or pushed
out pins
4. Replace Driver Board
ALL SWITCHES
Switch Closure Displays
Multiple Switch Numbers
I Check adjustments
2. Check shorted wires on
playfield or to 2J2, 2]3
3. Replace Driver Board
I. Check adjustments
2. Check Connectors
2]2,2]3,
are not
exchanged
3. Replace Driver Board
Switch Displays Incorrect No.
I. Check correct switch chart
for game and check adjustment
2. Incorrect wiring on playfield
2J2,2J3,orSPI/8JI
3. Check Connector keying
Section 6C - Place Diagnostics in Test 02
SOLENOID TROUBLESHOOTING CHART
Never Actuates
I. 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
I SOLENOID
ALL SOLENOIDS
Always Actuated
I.
Shorted wire for that
solenoid
2. Shorted driver for that
solenoid
on Driver Board -
replace Dri
ver
Board
FLIPPERS
I FLIPPER
Never Operates
1.Switch contacts on flipper button open or out of
adjustment.
2.Shorted diode across coil.
Flipper Weak
l.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.
Operates with Game Over, etc.
I.Short
in wiring to Driver Board.
2.Short
on Driver Board or stuck 2Z1 Relay
Contacts.
22
Never Actuated
••
1.
Check for
+
2S VDC on
.'
Power Supply fuse 3F2
to ground
2. Check fuse 3F2 on
Power Supply
3. Check Connectors 3]3
and 3J4 on Power Supply
4. Check Connector 2J9, 2J 10,
2J II, 2J 12 for broken/shorted
wires.
5.
Replace Driver Board
BOTH FLIPPERS
Never Operate
1.Check Fuse 8FI on Playfield and 6P2 connection.
2. Diode or resistor in driver circuit shorted.
3.Relay 2Z1 on driver board faulty.
4.0ther fault in driver circuit.
Replace driver board.
Operate with Game Over, etc.
I. Faulty driver circuit on Driver Board; repair or
replace.
2.0ther fault on Driver Board; repair or replace.