Basic HTML Version
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NOTICE
You can stop the Single Lamp Test by pressing the right or
left flipper button. When pressed, the right button advances
to the next lamp in the test. The left button backs up to the
previous lamp in the test.
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c ·
[ ] 4.Carefully raise the playfield or open the backbox to gain
access to the lamps.
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[] 5.Before replacing lamps that don't flash, check lamp
socket wiring. If the wiring appears to be correct, replace
the lamps that don't flash.
[] 6.lf all the lamps are now flashing, the game is ready for
play. If the lamps are not flashing, replace the 6803 Control
Board.
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CAUTION
Only replace the 6803 Control Board with a board bearing
the same part number. Otherwise the game will operate in-
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correctly. See the ROM Summary and the Control Board
parts list.
[] 7.Turn power on and repeat steps 1 and 2. If all the
lamps are flashing, the game is ready for play. If the lamps
don't flash, contact your authorized Bally distributor.
THE BIPHASE LAMP CIRCUIT: A CLOSER LOOK
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In the Biphase Lamp Circuit, each lamp is either on or off.
Furthermore, lamps are divided into two groups according
to the phase of line power. First, lamps in phase
A
may turn
on. Then, lamps in phase B may turn on. Phase
A
and
phase B lamps should never come on at the same time.
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Besides phases
A
and B, you'll find references to phases C
and
D.
Your game employs phases C and
0
to drive bright
lights (flashlamps). Phase C lags phase
A
by 90 degrees.
The same relationship holds between phases Band
D.
RC
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4-4