LC-90Y8T
6 – 6
No sound (during the reception of TV(ANALOG) broadcasting)
Does not the sound go out though the picture has come out when UHF/VHF is received?
(B)
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D
Replace as required.
YES
Does SIF signal input to pin [AN28/CPU̲SIFP]
of IC3301(Digital AV decode & Main CPU) ?
NO
Check the line between TU1103 and IC3301.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
No sound (during the reception of TV(DIGITAL) broadcasting)
Does not the sound go out though the picture has come out when DTV is received?
Do TS signals output to pins
of TUNER(TU1103) ?
NO
Check the tuner and its peripheral circuits.
Replace as required.
YES
Do TS signals input to pins [ AN16/TUN-GAN.SW,V34/CPU-OSDA2,V35/CPU-
-OSD2,V35/CPU-OSCL2,AT32/CPU̲TUN̲IFN,AU32/CPU̲TUN̲IFP ]
,
of IC3301 (Digital AV decode & Main CPU) ?
NO
Check the line between TU1103 and IC3301.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
[ 2/TU-GAIN SW,4/TU-SDATA,5/TU-SCLK,10/0--IF-,11/0--IF+ ]
YES
Summary of Contents for LC-90Y8T
Page 66: ...LC 90Y8T 7 ...
