LG BH9530TW Service Manual page 66
Cinema 3d sound blu-ray home cinema system
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Also See for BH9530TW:
- Specification (2 pages) ,
- Owner's manual (84 pages) ,
- Simple manual (2 pages)
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ELECTRICAL TROUBLESHOOTING GUIDE
No 1.2 V (VCC1.2V) DSP IC
YES
Is the
VCC supplied to IC405
pin3?
YES
Check IC405 and replace.
No 5V_SYSTEM (VCC_5V)
YES
Is the
VCC supplied to IC152
pin2?
YES
Is there
signal at IC152
pin1?
YES
Check IC152 and replace.
NO
Check IC155 pin6 (VCC_3V3).
NO
Check 6 VA on SMPS board.
NO
Check IC100 pin68 (LDO_CTRL).
2-51
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- Initial System Setup
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Troubleshooting
