 |
|||
|
|
|||
|
Page Title:
BACK-UP ALARM DOES NOT OPERATE - continued |
|
||
| ||||||||||
|
|
 TM 10-3930-673-20-1
3. BACK-UP ALARM DOES NOT OPERATE (CONT).
10
KNOWN INFO
TEST OPTIONS
Back-up alarm OK.
Voltage test.
Is 24 vdc present at circuit
Connector J1 OK.
STE/ICE-R 89.
breaker CB6 where wire 1
Connector P1 OK.
REASON FOR QUESTION
connects?
Wire 21 OK.
If 24 vdc is present, wire 1 faulty.
Back-up switch OK.
Wire 20 OK.
Circuit breaker CB2 OK.
Wire 5 OK.
Relay K2 OK.
Wire 3 OK.
Relay K1 OK.
POSSIBLE PROBLEMS
Wire 1 faulty.
Circuit breaker CB6 faulty.
Go to Step 11 of
NO
Connector J2 faulty.
this fault.
Connector P2 faulty.
YES
Repair wire 1 (Para
8-48).
11
KNOWN INFO
TEST OPTIONS
Back-up alarm OK.
Voltage test.
Is 24 vdc present at circuit
Connector J1 OK.
STE/ICE-R 89.
breaker CB6 where wire 9
Connector P1 OK.
REASON FOR QUESTION
connects?
Wire 21 OK.
If 24 vdc is present, circuit breaker
Back-up switch OK.
CB6 faulty.
Wire 20 OK.
Circuit breaker CB2 OK.
Wire 5 OK.
Relay K2 OK.
Wire 3 OK.
Relay K1 OK.
Wire 1 OK.
POSSIBLE PROBLEMS
Circuit breaker CB6 faulty.
Go to Step 12 of
NO
Connector J2 faulty.
this fault.
Connector P2 faulty.
YES
Replace circuit
breaker CB6
(Para 8-11).
2-74
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals