57
Appendix
ⅠⅠ
(Reference for circuit diagnostics)
Note) C → Common, NO → Normal open, NC → Normal close
3. When it operates as above, it is normal and
when it does not operate, repair the
corresponding relay.
1. Measure the coil bisection of the relay and
check whether it works.
2. Measure the apex bisection for open circuit.
* Disconnect the wire connector from the main
PCB CN70, 71 and measure the following
items.
3-contact
terminal Relay
DC 12V(Operation)
DC 0V(Standstill)
DC 12V(Operation)
DC 0V(Standstill)
C-NO:SHORT
C-NC:OPEN
C-NO:OPEN
C-NO:SHORT
SHORT
OPEN
Category Voltage of coil
terminal
Judge
2-contact
terminal Relay
Ref.1) Wire connector on the cabinet door.
Ref. 2) How to check relay failure
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