Troubleshooting; When The Light Doesn't Come On In The Refrigerator - Samsung SR-L676EV Service Manual

4) Troubleshooting

Precautions
1. Is the power cord well connected to wall outlet?
2. Be careful of high-voltage discharge because high voltage DC power is supplied to SUB-PCB.
When the light dosen 't come on in the refrigerator
N
Is TH-S/W normal?
Check the power
Replace TH-S/W
PTC should be inspected before replacing lamp.
Be careful of high voltage discharge, when repairing unit.
Samsung Electronics
N
Y
Start
Is power supplied to
sub-PCB?
Y
Is power supplied to
smoother C2?
Y
Does lamp oscillate
at 35±5KHz?
N
Check PTC.
Replace lamp
N
Check wires and
main PCB relay
Y
Repair C6, C7 or
PTC(RT1)
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