DIAGNOSTICS
Checkout Procedures
10DEC05
DG4825-1
Page
156 of 180
3
Does the DC OK LED illuminate?
4
Disconnect the wire to V2+.
5
Does the DC OK LED illuminate?
6
Disconnect the wire to V3
−
.
7
Does the DC OK LED illuminate?
8
Install a new POWER SUPPLY PS1.
TRANSFORMER T1
Important
If the CR 825/850 SYSTEM does not
energize, the cause of the malfunction might
be either:
•
TRANSFORMER T1
•
UNINTERRUPTED POWER SUPPLY
UPS1
Yes
No
Check the V1+ circuit for a malfunction.
Continue with
Yes
No
Check the V2+ circuit for a malfunction.
Continue with
Yes
No
Check the V3+ circuit for a malfunction.
Continue with
H177_1822AC
FAULT-ALARM LED
UTILITY-STATUS LED
TRANSFORMER T1
CIRCUIT BREAKER
POWER CORD
H177_1822ACB