Sharp LC-32HT2U Service Manual page 39

No video output during digital broadcasting reception
Is video signal sent to output terminal pin 4 of tuner (TU1101)?
Is video signal fed to pin 7 of IC1103 (LEVEL ADJ)?
Is video signal fed to pin 244 of IC3301 (Trident) via L.P.F. composed of Q2204 and Q2208?
Are digital video (LVDS) signals sent from pins 28-31 and 34-37
of IC3301?
Check LCD_CONTROL PWB.
YES
YES
YES
YES
NO Check or replace the tuner's peripheral circuits.
NO Is control signal for level adjustment fed from pin 1 of IC1104 to
pin 6 of IC1103?
Check or replace IC1104 (CONTROL) and peripheral circuits.
Check between IC1103 and IC3301. (Q2204, Q2208, etc.)
NO Check IC3301 and peripheral circuits.
6 – 6
LC-32HT2U
NO
NO