Samsung RT53 - When there is no Power in MAIN PCB

Total Ver.02
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Hotpoint,Mba
4033 Cv
LG_MULTI_F_3828A20097W_1[1]
Samsung
Refrigerador
346481235-
WD856UHSAWQ-



0
TROUBLESHOOTING
4-2-4. When there is no Power
in MAIN PCB
Start
Caution
There is AC220~240V or
DC310~340V at the MAIN PCB
Power Circuit. So, be cautious
when repairing the unit or
measuring values.
Yes
The unit is plugged in?
Yes
220~240V is applied
at MAIN PCB
CN70 terminals?
No
MAIN PCB Fuse is blown?
Yes
DC310~340V is applied
at BD1+/- terminals?
Yes
DC 6.2V is applied at
TOP S/W 3-12
Yes
12V is applied at
CE109 terminals?
Yes
5V is applied at
CE113 terminals?
Yes
Panel PCB operates
normally?
Loads such as Relay
Plug in the unit
No
Check the wire connections
No
1) Replace Fuse (AC 250V 2.0A)
2) Replace PCB ASS'Y
Yes
Replace PCB ASS'Y
No
Replace PCB ASS'Y
No
Replace PCB ASS'Y
No
Replace PCB ASS'Y
No
1) Check the wire connections
2) Replace Panel PCB
No
1) Check Lead Wire connections
No
- When checking the MAIN PCB, refer
to the Operation descriptions and
the "Reference" section.
4-2-4-1. Area that is Rated input voltage 220~240V.