24
POWER SUPPLY DIAGNOSTICS
8
Turn power OFF. Disconnect all 12 volt
output wires only. Turn power ON.
Green LED Light
comes ON.
Green LED Light
remains OFF.
Replace
Power
Supply.
Turn power OFF. Unplug all outputs from the Main Board.
Reconnect the 12 volt output wires to the Power Supply. Turn
power ON.
Green LED Light
comes ON.
Green LED Light
remains OFF.
Turn power OFF. Re-
connect the outputs at
the Main Circuit Board
one at a time. Wait 1
minute between tests
to turn power ON.
Green LED Light
comes ON.
Green LED Light
remains OFF.
That cable or related compo-
nent is shorted out. See
Jumper Cable Pin-Outs to see
which component might be at
fault.
Short in Main
Board - Replace.
That cable is OK.
Green LED Light
dims.
A related component such as
a solenoid is causing an over-
load. See Jumper Cable Pin-
Outs beginning on page 16 to
see which component might
be at fault.
Diagnose Power Supply
Power Supply is located under carpet inside game.
Please refer to “How to Access Blower” for informa-
tion.
Check the small green LED light on the power supply
circuit board. If the light is out there is a short
somewhere. If the light dims, there is an overload in
one of the circuits.
Green LED
power indicator
and voltage
adjustment pot