5. POWER
NO POWER |
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| |
(POWER INDICATOR OFF) |
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| |
CHECK | NO | Trouble in Fuse (F101) | |
Fuse F101 OK? |
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| ||
YES |
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CHECK |
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| |
C101 Voltage | NO | Check BD101 | |
| |||
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YES |
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| |
CHECK | NO | Check U101 Pin7 : 9~10V | |
U101 Pin6 Waveform | |||
(Square wave |
| Check D102 | |
Come out?) |
|
| |
YES |
|
| |
Check Q101 Drain | NO | Trouble in Q101 | |
| |||
Waveform |
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| |
YES |
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| |
Check D201, D202 | NO | Trouble in D201, D202 | |
| |||
Voltage |
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| |
YES |
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| |
CHECK 5V, 12V Line |
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Copyright 2007 LG Electronics. Inc. All right reserved. | LGE Internal Use Only |
Only for training and service purposes | - 22 - |
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