Reference; The Connection Of Door-Cabi; Inspection Of Relay - Samsung SR-L677EV Service Manual

8. Reference

Reference1

The connection of DOOR-CABI

Reference2

Inspection of Relay

* First separate the housing connected to the
main PCB CN70, 71 and measure the
following items.
1. Measure the coil bisection of the relay and
check whether it works.
2. Measure the apex bisection for open circuit.
Apex category The voltage of
Apex 3
Apex 2
Note) C → Common, NO → Normal open, NC → Normal close
3. When it operates as above, it is normal and
when it does not operate, report the
corresponding relay.
39
Judging the
coil bisection apex bisection
C-NO:SHORT
DC 12V(Operation)
C-NC:OPEN
C-NO:OPEN
DC 0V(Standstill)
C-NO:SHORT
SHORT
DC 12V(Operation)
DC 0V(Standstill)
OPEN