If Compressor Does Not Operate - Samsung RF267AE series Service Manual

TROUBLESHOOTING

4-2-7. If compressor does not operate

Refer to test function
in the manual
Did buzzer of manual operation sound?
(Check certainly after manual operation)
1) Replace MICOM
2) Replace PCB
1) Replace IC72 Driver IC(TD62083AP)
2) Replace PCB
Refer to circuit diagram
in the manual
☞Checking method of voltage PCB typical
Ground CN1#3(Black) and
1) IC02 MICOM #8 ; voltage High(5V ±0.5V)
IC02 MICOM #8, COMP operating
Start
Did 7 mins pass
after Compressor
OFF ?
Does compressor work
with manual operation?
Is IC02 MICOM #8
High?(5V)
Is IC72 #15 about
0.8V?
Is CN71 connector
normal?
Is COMP ASS'Y
normal?
Normal (recheck)
☞Checking method of voltage
PCB typical Ground CN1#3(Black) and
1) IC72 #15 : Voltage Low(0V)
73
Check after
7minutes
normal
Check bad contact of
connector
Replace COMP ASS'Y
typical PCB Ground
CN1#3(Black)