CSPP Capacitor Charging Unit Operation Manual
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Page 34 of 59
5. CSP-P Basic Fault Diagnosis
Unit Dead
First check the integrity of the mains supply fuse and the mains supply itself, if the fuse itself has
blown try the following components:
Mains Circuit Breaker?
Input Mains Filter?
Damage to the input power wiring?
Unit Fans Operate, But no front Panel indicators
Check fuse 1 on the rear panel, ( this is the supply fuse to the internal 12V PSU), if O.K try the
following:
Internal wiring to the 12V PSU
Replace the 12V PSU
12V PSU O.K., But still no front panel indicators
Ensure that LED 3 on Control Board is illuminated, if not, suspect the following:
Wiring between 12V PSU and the control board
If LED 3 is illuminated
Replace Control Board
Replace Front Panel Board
Check interconnect wiring between these sub-assemblies
Fans Do Not Operate
Check integrity of Fuse2 on rear panel, if O.K. :
Check Mains Wiring To Fans
Check Wiring to Relay Board
Fans Operate, But Pronounced Delay Between Power Up and Front Panel
Illumination
Replace 12V PSU
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