LG Flatron M1510A (M1510A-BZB.AN**LF) Service Manual page 21

NO RASTER ON AV SINGAL
(VIDEO, S-VIDEO)
REPEAT [A] PROCESS
YES
CHECK THE SIGNAL OF
L910, L911, L913
YES
CHECK THE
INPUT/OUTPUT
OF U601
YES
CHECK THE
INPUT/OUTPUT
OF U101
YES
CHECK THE
INPUT/OUTPUT
OF U401
YES
CHECK INPUT SOURCE
CABLE AND JACK
Waveforms
2
X601
3. NO RASTER ON AV, TV(RF) SINGAL
NO
CHECK THE OUTPUT
OF TU802
NO
CHANGE L910, L911, L913
RE-SOLDERING OR
NO
CHANGE THE DEFECT
PART CHECK X601
RE-SOLDERING OR
NO
CHANGE THE DEFECT
PART
RE-SOLDERING OR
NO
CHANGE THE DEFECT
PART CHECK X401
3
X401
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NO RASTER ON
TV(RF) SINGAL
2
3
CHECK 5V,33V OF TU802
NO
RE-SOLDERING OR
CHANGE THE DEFECT
PART
YES