LG Flatron L1511S - TROUBLESHOOTING GUIDE: NO RASTER (LIPS)

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2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS
CHECK MICOM INV
ON/OFF PORT.
(U501 PIN25)
J705 PIN2
5V?
NO
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK LIPS
J705
PIN5, PIN 6
5V?
NO
1. CONFIRM BRIGHTNESS
OSD CONTRL STATE.
2. CHECK MICOM DIM-ADJ
PORT(U501 PIN41)
J705 PIN1
5V?
NO
LIPS
CHECK
PULSE AS
CONTACTING SCOPE
PROBE TO CAUTION LABEL.
(CONTACT PROBE TO
CAUTION LABEL.
CAN YOU SEE PULSE
AT YOUR
SCOPE?
NO
REPLACE CCFL LAMP
IN THE LCD MODULE
YES
YES
YES
YES