Basic HTML Version
486
Table
7.
Solenoids
(Place Diagnostics in Test 02)
I SOLENOID
ALL SOLENOIDS
Never Actuates
Always Actuated
Never Actuated
I.
Check solenoid Chart to verify
I. Shorted wire for that solenoid
I. Check for +28 VDC on Power
number correct and in use
2. Shorted driver for that solenoid on
Supply fuse 3F2 to ground
2. Broken wire to solenoid
Driver Board-replace Driver
2. Check fuse 3F2 on Power Supply
3. Shorted diode across solenoid
Board
3. Check Connectors 313 and 314 on
4. Shorted
I
burned out solenoid
Power Supply
5. Open driver for that solenoid-
4. Check Connector 2J9, 2110, 2J1l,
replace Driver Board
2J 12 for broken/ shorted wires.
5. Replace Driver Board
FLIPPERS
1 LOWER FLIPPER
UPPER FLIPPER
ALL FLIPPERS
Never O~erates
Never Operates
Never Operate
I. Switc contacts on flipper button
1. End of stroke switch contacts on
1. Check Fuse 8Fl on Playfield and
open or out of adjustment.
lower right flipper open or out of
6P2 connection.
2. Shorted diode across coil.
adjustment.
2. Diode or resistor in driver circuit
Flipper Weak
2. Check Wiring from lower right
shorted.
flipper end of stroke switch to
3. Relay 2Z1 on driver board faulty.
1. Switch contacts on flipper button
upper right flipper coil.
4. Other fault in driver circuit.
out of adjustment or pitted
3.
Shorted diode across coil.
Replace driver board.
contacts.
2. End of stroke switch on solenoid
FHpper Weak
Operates with Game Over, etc.
not adjusted properly.
I. End of stroke switch on lower right
I.
Replace Driver Board
3. Check connections on solenoid and
flipper out of adjustment or pitted
check for bind.
contacts.
2.
End of stroke switch on upper
flipper not adjusted properly.
3. Check connections on solenoid and
check for bind.
Table
8.
Master Display
(Place Diagnostics in Display Digits Test)
USE EXTREME CAUTION WHEN MEASURING HIGH VOLTAGES!!!
NO DISPLAY
INCORRECT DISPLAY
1. Check -100 VDC, +100 VDC
&
fuse 3Fl on Power
1. Check +100 VDC. -100 VDC at 4J7
Supply.
2. Check for broken or shorted wires on 4J5, 416, 115,
2.
Check connectors 3J5, 417, 415, 113, 115, 116, IJ7
116, 117
3.
Check for +100 VDC and -100 VDC on connector
3. Replace Master Display Board
417-replace Power Supply Board if voltage incorrect
4. Replace Master Display Board.
Tabie
9.
Player Display
(Place Diagnostics in Display Digits Test)
USE EXTREME CAUTION WHEN MEASURING HIGH VOLTAGES!!!
1
PLAYER DISPLAY INCORRECT {OFF
2-4 PLAYER DISPLAYS INCORRECT/OFF
I.
Check correct location of connector from Master
I. Check correct location of connectors from Master
Display Board.
Display Board
2. Replace Player Display-if still incorrect, replace
2. Check voltage +100 VDC and -100 VDC on connector
Master Display Board.
4J7
3. If voltages are correct-replace Master Display Board.
24