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 Step 4.
Yes No
Check the V2+ circuit for a malfunction. Continue with Step 6.
Yes No
Check the V3+ circuit for a malfunction. Continue with Step 8.
H177_1822AC
FAULT-ALARM LED
UTILITY-STATUS LED
TRANSFORMER T1
CIRCUIT BREAKER
POWER CORD
H177_1822ACB