Sharp Aquos LC-26A37M, Service Manual

Page: 26 / 92

LC-26/32A37M
6 – 3
J506
Is the audio signal properly sent to pin (5) (VIN15_L) and
NO
Check the setting of an external input device
(7) (VIN17_R) of (COMP_1_IN) J506? that connects of J506
YES
J503
Is the audio signal properly sent to pin (5) (VIN11_L) and
NO
Check the setting of an external input device
(7) (VIN13_R) of (COMP_2_IN) J503? that connects of J503
YES
J506
Is the audio signal properly sent to pin (178) (VIN15_L) and
NO
Check the line between J506 and IC3001
(176) (VIN17_R) of IC3001(MAIN_MICON)? (MAIN_MICON)
YES
J503
Is the audio signal properly sent to pin (181) (VIN11_L) and
NO
check the line between J503 and IC3001
(179) (VIN13_R) of IC3001(MAIN_MICON)? (MAIN_MICON)
YES
Refer to "No Sound output in all modes"
Is audio signal output to pin (4/R-ch) and (2/L-ch) of audio
NO
Check the connection of J502 and external devices.
output terminal J502
YES
Is audio signal sent to pins (25) (AOUT_R) and
NO
Check the line between J502 and IC3001
(26) (AOUT_L)of IS3001 (MAIN_MICON)? (MAIN_MICON)
YES
Check IC3001 (MAIN_MICON) and its peripheral circuit
No audio signal output from AUDIO_OUTPUT terminal.
No sound from external input devices (3)
Does not the sound of the audio signal input to INPUT3 (J506) go out?
Does not the sound of the audio signal input to INPUT4 (J503) go out?
The Audio Signal not output (5)