Trouble Shooting; No Power - LG 28LB45 series Service Manual
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Also See for 28LB45 series:
- Owner's manual (384 pages) ,
- Owner's manual (33 pages) ,
- Owner's manual (166 pages)
Table of Contents
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1. No Power
Check C400
Voltage Level. (19V)
Yes
Check IC401 Output
Voltage Level. (3.3V)
Yes
Check IC402 Output
Voltage Level. (1.15V)
Yes
Check IC403 Output
Voltage Level. (5V)
Yes
Check X100 Clock
24MHz.
Yes
Replace IC102 Flash Memory.
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Only for training and service purposes
TROUBLE SHOOTING
No
Check Power connector
OK?
No
Replace IC401 & Recheck.
No
Replace IC402 & Recheck.
No
Replace IC403 & Recheck.
No
Replace X100.
- 15 -
Yes
Replace Adapter.
LGE Internal Use Only
- Quick Links:
- Block Diagram
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