LG L1511S Service Manual - Page 13

No Raster Osd Is Displayed - Gmzan2

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4. NO RASTER (OSD IS DISPLAYED) - gmZAN2 NO RASTER (OSD IS DISPLAYED) YES U201 POWER PIN 3.3V? YES CHECK R,G,B INPUT? U201 PIN 87, 91, 95 YES CHECK H-SYNC INPUT U201 PIN 150? NO CHECK U802, U806 1. CHECK PC NO 2. CHECK SIGNAL CABLE & D-SUB CONNECTOR LINE NO CHECK H-SYNC LINE (D-SUB→U701→MICOM →U201 PIN150)

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CHECK U802, U806
U201
POWER PIN
3.3V?
NO
1.
CHECK PC
2.
CHECK SIGNAL CABLE
& D-SUB CONNECTOR
LINE
CHECK
R,G,B INPUT?
U201 PIN 87, 91, 95
NO
CHECK H-SYNC LINE
(D-SUB
→
U701
→
MICOM
→
U201 PIN150)
CHECK
H-SYNC INPUT
U201 PIN 150?
NO
YES
YES
YES
NO RASTER
(OSD IS DISPLAYED)
4. NO RASTER (OSD IS DISPLAYED) – gmZAN2