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5. Troubleshooting
No Power Detected
Check the Power
Plug connection
Check the Voltage at
PACT1's both ends of AC
input voltage
Measure the
voltage of PRCU1 both of
input voltage
Check the voltage
of Vcc for SMPS
controller
Check the
connection at
several main power
Connect between SMPS
and Main Power
Samsung Electronics
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Connect Power Plug
Check PAFT1(Fuse)
"REMOVE" and Change
1) Check the Themistor
(PLRU1 : 3D-9)
2) Check the shoting of PQIZ1
If the controller is
operating unstably or no
operation,change the PQIZ1
Check the shorting at
several main power
5-1
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