Sharp LC-60LE636E Service Manual ▷ View online
LC-60LE635E(B),RU(B)/636E(B),S(B)/638E(B)
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 LE635E,RU/638E series, refer to (A).
In the case of LE636E,S series, refer to (B).
In the case of LE636E,S series, refer to (B).
(B)
(A)
Does SIF signal output from pin (8) of TUNER
(TU1102)?
(TU1102)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Does SIF signal input to pin [AM24/CPU_ATV_IF+] of
IC3303 (Digital AV decode & Main CPU)?
IC3303 (Digital AV decode & Main CPU)?
NO
Check the line between TU1102 and IC3303. (Q1102, etc.)
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
Does SIF signal output from pin (8) of TUNER (TU1104)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Does SIF signal input to pin [AM24/CPU_ATV_IF+] of IC3303
(Digital AV decode & Main CPU)?
(Digital AV decode & Main CPU)?
NO
Check the line between TU1104 and IC3303. (Q1102, etc.)
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
LC-60LE635E(B),RU(B)/636E(B),S(B)/638E(B)
6 – 3
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 LE635E,RU/638E series, refer to (A).
In the case of LE636E,S series, refer to (B).
In the case of LE636E,S series, refer to (B).
(B)
(A)
Do IF signals output to pins [10, 11] of TUNER
(TU1102)?
(TU1102)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Do IF signals input to pins [35/IFPGA_INN, 36/
IFPGA_INP] of IC4402 (CI Cont & DTB-T/C Demod)?
IFPGA_INP] of IC4402 (CI Cont & DTB-T/C Demod)?
NO
Check the line between IC1102 and IC4402.
YES
Do TS signals output to pins [15/DEMOD_TS_DATA0,
16/DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
16/DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
NO
Check IC4402 and its peripheral circuits.
YES
Do TS signals input to pins [U30/DEMOD_TSDATA0,
V30/DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main
CPU)?
V30/DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main
CPU)?
NO
Check the line between IC4402 and IC3303.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
Do TS signals output to pins [19/TS_TUOUT_CLK, 17/
TS_TUOUT_SYNC, 18/TS_TUOUT_VAL, 20~27/
TS_TUOUT_D0~7] of TUNER (TU1104)?
TS_TUOUT_SYNC, 18/TS_TUOUT_VAL, 20~27/
TS_TUOUT_D0~7] of TUNER (TU1104)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Do TS signals input to pins [45/TS_TUOUT_CLK, 46/
TS_TUOUT_SYNC, 47/TS_TUOUT_VAL, 48, 51~57/
TS_TUOUT_D0~7] of IC4402 (CI Cont & DTB-T/C Demod)?
TS_TUOUT_SYNC, 47/TS_TUOUT_VAL, 48, 51~57/
TS_TUOUT_D0~7] of IC4402 (CI Cont & DTB-T/C Demod)?
NO
Check the line between TU1104 and IC4402.
YES
Do TS signals output to pins [15/DEMOD_TS_DATA0, 16/
DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
NO
Check IC4402 and its peripheral circuits.
YES
Do TS signals input to pins [U30/DEMOD_TSDATA0, V30/
DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main CPU)?
DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main CPU)?
NO
Check the line between IC4402 and IC3303.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
LC-60LE635E(B),RU(B)/636E(B),S(B)/638E(B)
6 – 4
No sound (during the reception of TV (DIGITAL-Satellite) broadcasting)
(DIGITAL-Satellite is only function for LE635E,RU/638E series)
Does not the sound go out though the picture has come out when DTV is received?
Do TS signals output to pins [44/TS_TUOUT_CLK, 46/
TS_TUOUT_SYNC, 45/TS_TUOUT_VAL, 43~36/
TS_TUOUT_D0~7] of TUNER(TU1102)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Do TS signals input to pins [45/S2_TS_CLK, 46/S2_TS_SYNC,
47/S2_TS_VAL, 48,51~57/S2_TS_DATA0~7] of IC4402 (CI Cont
& DTB-T/C Demod)?
47/S2_TS_VAL, 48,51~57/S2_TS_DATA0~7] of IC4402 (CI Cont
& DTB-T/C Demod)?
NO
Check the line between TU1102 and IC4402.
YES
Do TS signals output to pins [15/DEMOD_TS_DATA0, 16/
DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
DEMOD_TS_SYNC, 17/DEMOD_TS_VAL, 18/
DEMOD_TS_CLK] of IC4402?
NO
Check IC4402 and its peripheral circuits.
YES
Do TS signals input to pins [U30/DEMOD_TSDATA0, V30/
DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main CPU)?
DEMOD_TSSYNC, V29/DEMOD_TSVAL, U32/
DEMOD_TSCLK] of IC3303 (Digital AV decode & Main CPU)?
NO
Check the line between IC4402 and IC3303.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
No sound from external input devices (1)
Does not the sound of the audio signal input to EXT1 go out?
Do audio signals input to pins [2/AUDIO_IN_R, 6/AUDIO_IN_L]
of EXT1 (SC505)?
NO
Check the setting of an external input device that connects with
EXT1.
EXT1.
YES
Do audio signals input to pins [AM32/SC1_AINR0, AM30/
SC1_AINL0] of IC3303 (Digital AV decode & Main CPU) from
SC505?
SC1_AINL0] of IC3303 (Digital AV decode & Main CPU) from
SC505?
NO
Check the line between SC505 and IC3303.
YES
Refer to “The sound is not emitted from the Speaker & Woofer though the picture has come out.”
LC-60LE635E(B),RU(B)/636E(B),S(B)/638E(B)
6 – 5
No picture on the display (1)
The picture doesn't appear in all modes.
Is the LVDS signal output from IC3303 (DIGITAL_AV_DECODER_&_MAIN_CPU) respectively?
[VBO_HTPDN(C21), VBO_LOCKN(D21), VBO_TXA+-(A22/B22), VBO_TXB+-(A23/B23), VBO_TXC+-(A24/B24), VBO_TXD+-(A25/B25)
YES
NO
Check IC3303 and its peripheral control circuits.
(IC2001, IC3501, IC3502, X3301, etc.)
(IC2001, IC3501, IC3502, X3301, etc.)
Do above-mentioned LVDS signals output from connector
(P2604)?
(P2604)?
NO
Check the line between IC3303 and P2604.
YES
Similarly, is LCD controller's control signal normal?
NO
Please check each control signal of DET_POW (DET_PNL12V),
PE (PNL_EN).
PE (PNL_EN).
YES
LCD Controller Unit:
Do LVDS signals input to connector (LV) of LCD Controller Unit?
Do LVDS signals input to connector (LV) of LCD Controller Unit?
NO
Wire harness (LV) is checked.
YES
Check the panel module.
No picture on the display (2)
Does not the picture come out when VHF/UHF is received?
In the case of LE635E,RU/638E series, refer to (A).
In the case of LE636E,S series, refer to (B).
In the case of LE636E,S series, refer to (B).
(B)
(A)
Does video signal (IFTU_AIF+/CVBS) output from pin [9]
of TUNER (TU1102)?
of TUNER (TU1102)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Does video signal (TUNER_CVBS) input to pin [AK24/
CPU_CVBS0P] of IC3303 (Digital AV decode & Main
CPU)?
CPU_CVBS0P] of IC3303 (Digital AV decode & Main
CPU)?
NO
Check the line between TU1102 and IC3303. (Q1106, etc...)
YES
Refer to “No picture on the display (1)”.
Does video signal (IFTU_AIF+/CVBS) output from pin [9] of
TUNER (TU1104)?
TUNER (TU1104)?
NO
Check the tuner and its peripheral circuits.
Replace as required.
Replace as required.
YES
Does video signal (TUNER_CVBS) input to pin [AK24/
CPU_CVBS0P] of IC3303 (Digital AV decode & Main CPU)?
CPU_CVBS0P] of IC3303 (Digital AV decode & Main CPU)?
NO
Check the line between TU1104 and IC3303. (Q1106, etc...)
YES
Refer to “No picture on the display (1)”.
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