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3. NO RASTER (OSD IS NOT DISPLAYED) - MAIN
1. CHECK PIN 127,128
SOLDERING CONDITION
2. CHECK X501
3. TROUBLE IN U501
CHECK U501
PIN114(3.3V)
PIN21(1.8V)
NO
NO
NO
CHECK U901(3.3V),
U902(1.8V)
U501
PIN 127,128
14.3MHZ?
CHECK CONNECTION LINE
FROM D-SUB TO U501
TROUBLE IN CABLE
OR LCD MODULE
YES
YES
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK U501
PIN32(H-SYNC) AND
PIN33(V-SYNC).
IS PULSE APPEARED AT
SIGNAL PINS?
YES
1
Waveforms
1
U501-#127
Содержание Flatron L226WTQ
Страница 19: ...EXPLODED VIEW 19 300 520 310 430 330 320 900 910 920 200 500 510 420 410 400 ...
Страница 24: ... 24 PRINTED CIRCUIT BOARD MAIN TOP MAIN BOTTOM ...
Страница 25: ... 25 CONTROL ...
Страница 26: ...SCHEMATIC DIAGRAM 26 1 SCALER ...
Страница 27: ... 27 2 POWER WAFER ...
Страница 28: ... 28 3 CONTROL ...
Страница 29: ...May 2007 P NO MFL38456741 Printed in Korea ...