LG L1511S Service Manual - Page 11

No Raster Osd Is Not Displayed - Lips

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

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2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS
CHECK MICOM INV
ON/OFF PORT.
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
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