Sharp LC-32XL8E/S/RU Service Manual page 52

LC-32XL8E/S/RU, LC-37XL8E/S/RU
Does not the sound of the audio signal input to EXT6 (Ana-
log) go out?
Whether "Analog" has selected it in the Audio setup of the HDMI
option is checked.
MAIN UNIT:
Is audio signal sent from pin (2/L) and (3/R) of input terminal
J1502 to pin (1) and (6) of IC1504
(STEREO_AUDIO_SELECTOR)?
Check the connection between J1502 and the peripheral circuit,
the external input devices.
Is audio signal output from pin (15/HDMI_PC_L) and pin (11/HDMI_PC_R) of IC1504 to pin (44) and (46) of connector SC1101?
TERMINAL UNIT:
Is audio signal (HDMI_PC_L=MAIN_L, HDMI_PC_R=MAIN_R)
sent to pins (44) and (46) of SC501?
Is audio signal input to pin (59/MAIN_L) and (60/MAIN_R) of
IC1404 (CODEC)?
Refer to "No sound output in all modes".
Does not the sound of the audio signal input to EXT8 go out?
TEREMINAL UNIT:
Is audio signal sent from pins (4/IN4-L) and (2/IN4-R) of input ter-
minal J502?
Is audio signal sent from pins (57/IN4-L) and (58/IN4-R) of
IC1404?
Refer to "No sound output in all modes".
No sound from external input devices (4)
YES
NO
YES
YES
YES
No sound from external input devices (5)
YES
YES
Does not the sound of the audio signal input to EXT7 go
out?
MAIN UnIT:
YES Is audio signal sent from pin (2/L) and (3/R) of input terminal
J1501 to pin (3) and (7) of IC1504
(STEREO_AUDIO_SELECTOR)?
Check the connection between J1501 and the peripheral circuit,
the external input devices.
Check the line between IC1504 and SC1101, and their peripheral
circuits.
NO Check the connector (SC1101/SC501)
NO Check the line between SC501 and IC1404.
NO Check the connection to J502 and external devices.
NO Check the line between J502 and IC1404.
4 – 5
NO
NO