32
LC-26D43U
TROUBLESHOOTING TABLE (Continued)
No video output during ANALOG broadcasting reception
Yes
No
No
Yes
Is control signal for level adjustment fed from pin 1 of
IC1104 to pin 6 of IC1103?
Check or repiace the tuner's peripheral circuits.
Is video signal sent to output terminal pin 13 of tuner
(TU1101)?
Is video signal fed to pin 7 of IC1103 (LEVEL ADJ)?
Is video signal fed to pin R26 of IC8101 (Broadcom) via L.P.F. composed of Q2204 and Q2208?
Yes
No
Yes
Check IC2602 and peripheral circuits.
Check between IC1103 and IC3301.(Q2204,Q2208,etc.)
Are digital video (LVDS) signals sent from pins 37-42 and
45-48 of IC2602?
Check LCD_CONTROL PWB.
No
Are digital video (COMOS) signal sent from IC8101
(DVODATA 0-23,DVOCLKO,DVODE,DVOHSYNC,
DVOVSYNC)?
Check IC8101 and peripheral circuits.
Check or replace IC1104 (CONTROL) and peripheral
circuits.
No
No
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