Sharp LC-37D64U User Manual

LC-32/37D64U
6 – 8
No audio (1)
INPUT-3 No audio
Is INPUT-3 selected on the input select menu screen?
YES
NO
Is the audio output selected for “VARIABLE” on the menu screen?
Set the audio output to “FIXED”.
Does the audio signal come from pins(4)(L) and (5)(R) of input terminal(J901) to
pins(3)(L) and (1)(R) of P901 on the SIDE unit?
YES
NO
Check the line between J901 and P901, and their peripheral circuits.
Are there the audio signal inputs at pins(3)(L) and (1)(R) of P501 on the TERMINAL
unit?
YES
NO
Check the line between P501 and P901.
Does the audio signal come from pins(3)(L) and (1)(R) of P501 to pins(6) and (11) of
IC501 on the TERMINAL unit?
YES
NO
Check the line between P501 and IC501, and their peripheral circuits.
Does the audio signal come from pins(20)(L) and (18)(R) of IC501 to pins(69)(L) and
(71)(R) of connector(SC501)?
NO Check the line between IC501 and SC501 its
peripheral circuits.
YES
Are there the audio signal inputs at pins(69)(L) and (71)(R) of connector(SC2203) on
the MAIN unit?
NO Check the line between SC501 and SC2203.
YES
Does the audio signal come from pins(69)(L) and (71)(R) of SC2203 to pins(35)(L) and
(36)(R) of IC1403(CODEC)?
NO Check the line between IC1403 and SC2203.
YES
Does the audio signal come from pins(4)(COD_LRCK), (5)(COD_BCK) and
(6)(COD_SDOUT) of IC1403 to pins(AK24), (AH24) and (AJ24) of IC8001(CPU)?
NO Check the line between IC1403 and IC8001.
YES
Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN),
(AL25)(DSP_SDIN1) and (L32)(DSP_SDIN2) of IC8001 to pins(2), (3), (6) and (4) of
IC1402(SOUND_DSP)?
NO
Check the line between IC8001 and IC1402.
YES
Does the audio signal come from pins(19)(DSP_SDOUT1) and (21)(DSP_SDOUT3) of
IC1402 to pins(11) and (12) of IC1403(CODEC)?
NO Check the line between IC1402 and IC1403.
Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN) and
(AL24)(DSP_MCLK) of IC8001 to pins(8), (9) and (10) of IC1403?
NO Check the line between IC8001 and IC1403.
YES
Does the audio signal come from pins(17)(SPOUT_LP) and (18)(SPOUT_RP) of
IC1403 to pins(39)(SP_LP) and (43)(SP_RP) of connector(SC2203) on the MAIN unit?
NO Check the line between SC2203 and
IC1403.(D1305, D1312, Q1306 and Q1307, etc.)
YES
Are there the audio signal inputs at pins(39)(SP_LP) and (43)(SP_RP) of connec-
tor(SC501) on the TERMINAL unit?
NO Check the line between SC501 and SC2203.
YES
Does the audio signal come from pins(39)(SP_LP) and (43)(SP_RP) of SC501 to
pins(5)(SP_LP) and (9)(SP_RP) of IC2701(AMP) on the TERMINAL unit?
NO Check the line between SC501 and IC2701, and
their peripheral circuits.(AMP_MUTE line, etc.)
YES
Is the audio output from IC2701 as specified? NO Check IC2701 and its peripheral circuits.
YES
Check the connector(P2701), speakers and their peripheral circuits.

Sharp LC-37D64U Specifications

General

Brand	Sharp
Model	LC-37D64U
Category	TV
Language	English