Samsung RL60GG Series, Service Manual

Page: 67 / 94

67
4. TROUBLESHOOTING
4-2-13) When Fridge Damper does not work
Start
* Note ; Its operations can change
based on its functions.
MICOM & FRIDGE DAMPER STATE
Door & MICOM State
Door MICOM(#60)
Close 0V
Open 5V
MICOM
DAMPER
39 38 37 Remark
CLOSE 5V 0V 0V
...ING 0V - 5V
OPEN 5V 5V 0V
DAMPER is under a
working condition.
MAIN PCB Connector
CN75 is inserted
normal
Damper operates with
DOOR S/W closed.
Voltage is output from
MICOM Pin #37,38,39
DOOR S/W is good
Fridge temp satisfies
the set temp
DAMPER is normal
Shift Set Temp
[Set lower than the current temp]
Normal
Replace PCB MAIN
Forced Operation, Temp Increased
Check Connector CN75
DAMPER is good
Check Cold Solder, Replace PCB
Replace DOOR S/W
Check Wiring & PCB MAIN
Replace DAMPER
No
No
Yes
No
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes