Sharp LC-37D64U User Manual

LC-32/37D64U
6 – 11
No audio (4)
INPUT-4 No audio (HDMI connected)
INPUT-5 No audio (HDMI connected)
[INPUT-4 input]
Is INPUT-4 selected on the input select menu screen?
[INPUT-5 input]
Is INPUT-5 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”.
[INPUT-4 input] If no video appears, refer to “No external input video (HDMI)
[INPUT-4]”.
[INPUT-5 input] If no video appears, refer to “No external input video (HDMI)
[INPUT-5]”.
YES
Is the HDMI_MUTE line as specified?
YES
NO
Check Q1301, IC1302 and their peripheral circuits.
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 connec-
tor(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
connector(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 TERMI-
NAL 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