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5. Troubleshooting
5-1 No Power (No Picture on)
No
Check both
terminal voltages of
C806 (280~300V).
Yes
Is IC801S Pin 3
19~22V?
Yes
Check/Replace
DZ801,DZ804,
DZ802,PC801S
Samsung Electronics
both terminal voltages
No
Check D801S
FB801S
No
Check IC801S
Check
of C814
No
Check whether
each power line
is short or open.
No
Check/Replace
Q901, DZ901, D901
No
Check/Replace
IC902
Yes
Check
Voltage of 8V, 12V, 6V,
20V power line..
Yes
No
Is Q805-E
Output Voltage 5V?
Yes
Is Q901-E
Voltage 3.3V?
Yes
Check
Q811-B is High
when power is On
(about 0.6~2.0v)
Yes
Check /Replace
Q810, Q812, DZ805
Troubleshooting
5-1
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