Troubleshooting Guide - Prince Castle Channel Serie Manual De Instrucciones

PROBLEM
A. No displays or indicators lit.
B. Absence of Audio Alarm.
C. Unit will not enter program mode.
Display does not show " Prog ".
D. Unit enters program mode. Display
shows " Prog ", but cannot change
times.
E. Unable to start, stop, or store timer
presets in program mode. Missing
or abnormal characters in displays.
POWER SUPPLY PCB
741-500FGISrevA

TROUBLESHOOTING GUIDE

CAUSE
Unit unplugged.
Store's circuit breaker blown.
Defective transformer.
Circuit inoperable.
Speaker inoperable.
Circuit inoperable.
All channels are still counting.
Logo Switch inoperable.
The channel is still counting.
Arrow Switch inoperable.
Circuit inoperable.
Circuit inoperable.
WIRING DIAGRAM 741-T2
RED
BLACK
GROUND
GRN/YEL
BLUE
BROWN
Plug unit in.
Reset breaker.
Replace Power Supply Board.
Replace Main Circuit Board.
Replace Speaker.
Replace Main Circuit Board.
Wait until channels are in stop mode.
Replace Switch Panel.
Wait until channel is in stop mode.
Replace Switch Panel.
Replace Main Circuit Board.
Replace Switch Panel. If problem
persists, replace Main Circuit Board.
MAIN PCB
SPEAKER
POWER INLET
6
SOLUTION
MEMBRANE SWITCH
SPEAKER