LC-32D44U
6 – 1
LC-32D44U
Service Manual
CHAPTER 6.
TROUBLE SHOOTING TABLE
[1] TROUBLE SHOOTING TABLE
No video (1)
COMPOSITE: No external input video
[INPUT-1]
COMPOSITE: No external input video
[INPUT-2]
Is INPUT-1 selected on the input select menu screen?
Is INPUT-2 selected on the input select menu screen?
YES
NO
YES
NO
Is the video signal detection function normal?
Check the line between pin(2) of J501 and pin AD4 of
IC8001
Is the video signal detection function normal?
Check the line between pin(2) of J503 and pin AC6 of
IC8001
Is video signal fed to AN16 of IC8001 via L.P.F composed of
capacitor and inductor between Q511 and Q521?
Is video signal fed to AN17 of IC8001 via L.P.F composed of capacitor and
inductor between Q512 and Q522?
YES
NO
YES
NO
Check the line between pin(3) of J501 and pin AN16 of
IC8001.
Check the line between pin(3) of J503 and pin AN17 of
IC8001.
Are digital video (LVDS) signals sent from pins B5~7, C5~7, D5~7, and E5~7 of IC8001?
YES
NO
Check the line between IC8001 and IC5103.
Check IC8001 and peripheral circuits.
Are digital video (RSDS) signals sent from IC5103 to SC5201 and
SC5202?
NO
Check the line between IC5103 and SC5201 and SC5202.
YES
Check IC5103 and peripheral circuits.
Check between (SC5201, SC5202) and LCD Panel.
