Sharp LC-60G9T - Page 44

LC-60G9T / LC-70G9T
6 – 2
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?
In the case of LE950,951 series , refer to (A) (B)
In the case of G9T series , refer to (B)
(A)
Does SIF signal output from pin (8) of TUNER (TU1105) ? NO Check the tuner and its peripheral circuits.
Replace as required.
YES
Does SIF signal input to pin [AN28/CPU_SIFP] of IC3301(Digital AV decode &
Main CPU) ?
NO Check the line between TU1105 and IC3301.
(Q1102, etc.)
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
(B)
Does SIF signal output from pin (8) of TUNER (TU1103) ? NO Check the tuner and its peripheral circuits.
Replace as required.
YES
Does SIF signal input to pin [AN28/CPU_SIFP]
of IC3301(Digital AV decode & Main CPU) ?
NO Check the line between TU1103 and IC3301.
(Q1102, etc.)
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?
In the case of LE950.951X series , refer to (A) (B)
In the case of G9T series , refer to (B)
(A)
Do TS signals output to pins [19/T2_TS_CLK, 17/T2_TS_SYNC_HSS, 18/
T2_TS_VAL_HSS, 20~27/T2_TS_D0~7 ] of TUNER(TU1105) ?
NO Check the tuner and its peripheral circuits.
Replace as required.
YES
Do TS signals input to pins [T32/CPU_DEMOD_TSCLK, T3 5/
CPU_DEMOD_TSSYNC, T31/
CPU_DEMOD_TSVAL,T36,U36,T33,T30,V33,V32,V31,V30/
CPU_DEMOD_TSDATA0~A7] of IC3301 (Digital AV decode & Main CPU) ?
NO Check the line betweenTU1105 and IC3301.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
(B)
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/CPU_TUN_IFN,AU32/CPU_TUN_IFD ]
,
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,10/8--IF-,11/0--IF+ ]