Samsung RSJ1K Series, Service Manual

Page: 73 / 107

Refer to Circuit Diagram in
this manual and check the
circuit diagram attached on
the back of the unit.
When PANEL KEY is
not selected
Start
Re-insert Connector,
Correct the defective
contact
NO
YES
TROUBLE SHOOTING
4-2-6) When PANEL PCB operates abnormally
1) When PANEL PCB does not light up or partially does
2) When Panel PCB buttons are not working
The connector at the
Freezer upper hinge cover
is inserted properly.
Re-insert MAIN PCB
Connector
NO
YES
MAIN PCB Connector
(CN50)is inserted
properly
YES
Re-insert Connector,
Correct the defective contact
NO
DOOR PANEL PCB
Connector is inserted
properly
NO
Defective PANEL PCB
YES
It lights up when
PANEL-PCB is being
replaced
➀
Check F/R-Door Wiring - Short or Open Wire
➁ Check F/R-CABI Wiring - Short or Open Wire
➂
Check Short/Open at MAIN PCB Panel Lamp Circuit
➀
Check F/R-Door Wiring - Short or Open Wire
➁
Check F/R-CABI Wiring - Short or Open Wire
➂
Check Short/Open at MAIN PCB Panel
Communication/Power-Supply Circuit
Cancel Child Lock and
check it again
YES
NO
Child Lock is on
Re-assemble PCB ASS'Y, Correct
any restrictions on the buttons
Being
Pressed
There are no buttons
being pressed
continuously.
NO
Re-assemble PCB ASS'Y, Correct
any restrictions on the buttons
When being separated, it works
The trouble continues
with PCB being
removed
YES
Defective PANEL PCB
YES
When PANEL-PCB is
being replaced, it
works normal.
NO
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