LG L1718S-BN - - 17" LCD Monitor Service Manual page 18
Service manual
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Also See for L1718S-BN - - 17" LCD Monitor:
- User manual (24 pages) ,
- Specifications (2 pages) ,
- Guía del usuario (24 pages)
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Unstable power
Check sampling
Circuit
Check the R pin
voltage of IC803
about 2.5V
Check pin1 of
IC802 voltage
is 5.8V
Check pin3 of
IC802 voltage
about 1V
4.Output power is unstable
Check R810,
R811, R818
Check the C
pin voltage
of IC803 if
Check R809, R808,
R814, D809
Change R801, R805,
R822, R823, R817
END
18
3V
Check D806, C815 if
short
Change
D806, C815
Change
R810, R811,
Change
IC803
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