Samsung SR-L677EV - Trouble shooting; No Power and Compressor Issues

7. Trouble shooting
1) No power
1. Is the power cord well connected to wall outlet?
2. Refer to the reference
Precautions
Start
Y
N
Check wires
DC-Trans primary
power input?
Y
N
Replace DC-Trans
DC-Trans secondary
power input?
Y
N
Check REG102
(MC7812)
DC 12V output
from REG102?
Y
N
Check REG1
(KA7805)
DC 5V output
from REG1?
Y
N
Check wire connection Reference 1
(Page. 38)
Are wires connected to
panel securely?
Y
N
Replace panel PCB
Exchange main PCB
Panel PCB Ass’y
is OK?
25