Sharp LC-32D44E Service Manual page 46

LC32D44E/S/RU-BK/GY (1st Eddition)
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
Refer to "No sound output in all modes"
Does not the sound of the audio signal input to EXT5 go out?
Is audio signal output from pin(2/COMP_AL), (4/
COMP_AR) of input terminal J1303 to pin(13), (9) of
IC1301 (AUDIO_SELECTOR)?
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of
IC1301?
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
Refer to "No sound output in all modes"
Does not the sound of the audio signal input to EXT6/7(HDMI) go out?
Is picture of the signal input from EXT6/7 displayed?
Is the HDMI_SCK/ WS/ SD0 audio signal output from
pin(86), (85), (84) of IC1951 (HDMI RECEIVER) to pin(39),
(40), (38) of IC3001 (MAIN_MICON)?
Refer to "No sound output in all modes".
YES
YES
No sound from external input devices (4)
NO
YES
NO
YES
YES
No sound from external input devices (5)
NO
YES
NO
YES
Check the line between IC1301 and IC3001.
Check connection of between from J1303 to IC1301 and the external
input device.
Check IC1301 and its peripheral circuits.
Check the line between IC1301 and IC3001.
Refer to "Does not the picture of the HDMI signal input to EXT6/7 go
out?".
Check the line between IC1951 and IC3001, and their peripheral cir-
cuits.
4 – 6
NO
NO