Dell 2005FPW - UltraSharp - 20.1" LCD Monitor Panduan Servis - Halaman 16
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Halaman Cetak
3. NO RASTER (OSD IS NOT DISPLAYED) – GM1501CF
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK U608 PIN3
CHECK U605
CHECK U607
6
OSCILLATE AS
14.318MHZ?
PIN3 IS 65.22KHz H-
Q106 PIN3 IS 60Hz V-
7
8
IS PULSE APPEARED
AT SIGNAL PINS?
AT MODE 11?
TROUBLE IN CABLE
OR LCD MODULE
Waveforms
6
U402-G4, G43(14.318V)
3.3V?
YES
PIN2
2.5V?
YES
PIN2
1.8V?
YES
U402
G4, G3
YES
Q105
SYNC?
SYNC?
YES
7
Q105-#3
NO
NO
NO
NO
NO
8
Q106-#3
- 16 -
TROUBLE IN LIPS
TROUBLE IN LIPS
TROUBLE IN LIPS
1. CHECK G4, G3
SOLDERING CONDITION
2. CHECK X401
3. TROUBLE IN U402
CHECK CONNECTION LINE
FROM D-SUB TO U402