Sharp lc-32rd8 Service Manual page 45

Does not the sound of the audio signal input to EXT4 go
out?
Is audio signal sent from pins(2/L), (3/R) of input terminal
J1301 to pins(5), (8) of IC1301(AUDIO_SELECTOR)?
Check the connection between J1301 and the peripheral
circuit, the external input devices.
Is the audio signal sent to pins(15/AIN4L), (11/AIN4R) of
IC1301?
Is audio signal input from pins(15/AIN4L), (11/AIN4R) of IC1301 to pins(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 pins(2/COMP_AL), (4/
COMP_AR) of input terminal J1303 to pins(13), (9) of
IC1301 (AUDIO_SELECTOR)?
Is the audio signal sent to pins(15/AIN4L), (11/AIN4R) of
IC1301?
Is audio signal input from pins(15/AIN4L), (11/AIN4R) of IC1301 to pins(16, 15) of IC3001 (MAIN_MICON)?
Refer to "No sound output in all modes".
No sound from external input devices (3)
YES
NO
YES
YES
No sound from external input devices (4)
YES
YES
YES
LC-32RD8E/S/RU-BK/GY (1st Edition)
Does not the sound of the audio signal input to EXT6(Analog) go
out?
Whether "Analog" has selected it in the Audio setup of the HDMI
option is checked.
Is audio signal sent from pins(2/L), (3/R) of input terminal J1302 to
pins(3), (7) of IC1301(AUDIO_SELECTOR)?
Check the connection between J1302 and the peripheral circuit, the
external input devices.
NO
Check IC1301 and its peripheral circuits.
Check the line between IC1301 and IC3001.
NO
Check connection of between from J1303 to IC1301 and the external
input device.
NO
Check IC1301 and its peripheral circuits.
Check the line between IC1301 and IC3001.
4 – 6
NO
NO
NO