LG L1915S Service Guide - Page 17
Trouble In Dpm
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TROUBLE IN DPM 4. TROUBLE IN DPM CHECK R773, R775 (SYNC) ? YES CHECK U501 PIN 43.44 SYNC PULSE ? YES TROUBLE IN U501 NO CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO CHECK H/V SYNC LINE - 15 -
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4. TROUBLE IN DPM
TROUBLE IN DPM
TROUBLE IN U501
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
NO
CHECK H/V SYNC
LINE
NO
YES
YES
CHECK
R773, R775
(SYNC) ?
CHECK
U501 PIN 43.44
SYNC PULSE ?