LG BP540, Руководство по обслуживанию

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3-27
ONE POINT REPAIR GUIDE
1. NO POWER PROBLEM
No power problem occurs when you power on the unit.
1-1. Fuse & bridge diodes
1-1-1. Solution
Replace F101, D103 ~ D106, R101 on SMPS board.
1-1-2. How to troubleshoot (Countermeasure)
1) Look at the physical of fuse F101.
2) Check the bridge diode D103/ D104/ D105/ D106.
3) Check the R101 short or open.
1-1-3. Service hint (Any picture / Remark)
< Fuse, F101 > < Bridge diode, D103 ~ D106 >
< Resistor, R101 >
If R101 open state,
it is change new component.
No Power
D103~D106 are Defective
No Power
D102 is Defective
S/W Error
IC101 is Defective
Switching
IC102/IC103 ar No Power
R101 is Defective
No Power
F101 is Defective
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ͷ ͷͺͽ΅Ͷ΃
SWITCHING IC
TRANS
AC85~264V
RECTIFIER
(primary)
Fuse
΁΃΀΅Ͷʹ΅΀΃
΃
͵ΚΤΔΙΒΣΘΖ
΃ΖΤΚΤΥΠΣ
Ή͞ʹΒΡ
·ΒΣΚΤΥΠΣ