Samsung AR18HSFNBWKNEU Service Manual page 108

After seperate SMPS DC
wire (3PIN RED, 3PIN BLU) from
Main PBA Connector CN151, CN152, Check
the DC voltage in SMPS PBA. Is the voltage is
normal in SMPS PBA?
(SMPS : CN002, CN003 Check)
DC wire (3PIN RED, 3PIN BLU) with Main PBA
Connector CN151, CN152, Check the DC voltage in
Main PBA. Is the voltage is normal in Main PBA?
(Main : CN151,CN152 Check)
Exchange the Main PBA, SMPS PBA
10-30
YES
After connect SMPS
YES
NO
Exchange the SMPS PBA
NO
Exchange the Main PBA
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