This Capcom Service Bulletin applies to:
Pinball Magic, Airborne, Breakshot, Flipper Football, & KingPin Pinball

Back to all Capcom Pinball Service Bulletins

COIN-OP, INC.
(Pinball Division is out of business)

TECHNICAL SERVICE BULLETIN 95-010a

DATE:†††††††††††††††††††††††††††††††††††††† NOVEMBER 9, 1995

SUBJECT:††††††††††††††††††††††††††††††† CPU, LED DIAGNOSTIC ERROR CODES

TO:†††††††††††††††††††††††††††††††††††††††††† ALL DISTRIBUTORS

GAME:††††††††††††††††††††††††††††††††††††† PINBALL MAGIC

REASON FOR BULLETIN:†††††††† TROUBLESHOOTING TOOL FOR CPU BOARD

AFFECTS S/Nís:†††††††††††††††††††††† ALL


NORMAL OPERATION:
  • LED 1 GOES BRIGHT THEN DIMS 4 TIMES PER SECOND
  • LED 2 ON CONSTANTLY MONITORS +5VDC SUPPLY

    FOLLOWING IS THE SEQUENCE TO TROUBLESHOOT A CPU BOARD.

    1. AFTER THE CPU STARTS IT WILL FIRST TURN LED 1 OFF. IF LED 1 STAYS ON CONTINUOUSLY, CHECK U8 PIN 48 ON THE MICROPROCESSOR MAKING SURE IT IS NOT RESET. IF OK,CHECK CPU CLOCK CIRCUIT,ADDRESS AND DATA BUSES, INTERRUPT LINES,ETC..

    2. THE CPU WILL DO SOME SYSTEM CHECKS,IF THERE IS AN ERROR THE CPU WILL TRY

    TO DISPLAY AN ERROR MESSAGE ON THE DISPLAY,THEN IT WILL BLINK THELED 1 FULL ON TO FULL OFF (1 SECOND PER BLINK).SEE TABLE ON THE FOLLOWING PAGE TO IDENTIFY THE PROBLEM AREA.

    3. AFTER ALL CHECKS ARE MADE,THE CPU WILL THEN START ITS MAIN PROGRAM AND

    FLASH THELED 1 [FROM DIM TO ON] 4 TIMES A SECOND.AT THIS TIME THE CPU IS

    RUNNING NORMALLY.

    †††††††††††††††††††††††

    CPU, LED Error codes

    Blinks

    DISPLAY DESCRIPTION

    POSSIBLE PROBLEMS

    1

    U25 RAM ERROR

    (4.75-5.25 volts), Bad

    (dynamic RAM

    signals to chip or bad RAM.

    2

    U14 RAM ERROR

    Missing chip,dead internal battery.

    (Non-volatile RAM)

    Improper VCC(4.75-5.25 volts)

    3

    U1H ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (Required Code ROM)

    to chip.

    4

    U1L ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    ††

    (Required Code ROM)

    to chip.

    5

    U2L ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (Image ROM)

    to chip.

    6

    U2L ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (image ROM)

    to chip.

    7

    U3H ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (Future Expansion ROM)

    to chip.

    8

    U3L ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (Future Expansion ROM)

    to chip.

    9

    U4H ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (Future Expansion ROM)

    to chip.

    10

    U4L ROM ERROR

    Bent pin,Wrong EPROM, Bad signals

    (Future Expansion ROM)

    to chip.

    11

    U16 CHIP ERROR

    Bad connection,signals, or chip.

    (actel 1020 programmed)

    12

    U8 MISSING X2 ERROR

    Missing clock to pin 103 (x2) of

    CPU chip U16

    13

    MISSING ZERO X J2

    Disconnected signal (zero cross) from power

    board (J3 Zero X) to CPU board (J2 zero X),

    wire pinch between backbox & lower cabinet.

    14

    BAD LINE SIGNALS

    Disconnected/missing signals

    in-between power board J3 Line 5,

    Line V, or Pulse and CPU board J2

    Line 5, Line V, or Pulse.

    15

    IMPROPER DRIVER BOARD

    Improper or disconnected driver

    board. Check ribbon cable.