Dell 2005FPW - UltraSharp - 20.1" LCD Monitor Service Manual page 15

NO RASTER
(OSD IS NOT DISPLAYED)
PIN6, PIN7, PIN9
J101 PIN10
4
J101 PIN12
5
CONTACTING SCOPE
PROBE TO CAUTION LABEL.
(CONTACT PROBE TO
CAUTION LABEL.
CAN YOU SEE PULSE
REPLACE CCFL LAMP
IN THE LCD MODULE
Waveforms
4 J101-#10(3.3V)
2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS
J101
5V?
YES
3.3V?
YES
3.3V?
YES
CHECK
PULSE AS
AT YOUR
SCOPE?
YES
5 J101-#12(3.3V)
NO
NO
NO
NO
- 15 -
CHECK LIPS
CHECK MICOM INV ON/OFF
PORT.
1. CONFIRM BRIGHTNESS
OSD CONTRL STATE.
2. CHECK MICOM DIM-ADJ
PORT
LIPS