Sharp LC-19S7E-BK Service Manual page 40

LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Does not the sound of the audio signal input to PC(VGA) go out?
MAIN UNIT:
Is the audio signal properly sent to pin (2) (PC_AU_INL) and pin (3)
(PC_AU_INR) of CN1703?
Is the audio signal properly sent to pin (75) (AUL2) and pin (76)
(AUR2) of IC U4201?
Refer to "No sound output in all modes".
Does not the sound of the audio signal input to "AV side" go out?
MAIN UNIT:
Is the audio signal properly sent to pin (4) (SIDE_AU_INL) and pin
(6) (SIDE_AU_INR) of CN1206?
Is the audio signal properly sent to pin (77) (AUL3) and pin (78)
(AUR3) of IC U4201?
Refer to "No sound output in all modes".
Does not the sound of the audio signal input to HDMI 1/"HDMI side" go out?
Is picture of the signal input from HDMI 1/HDMI side displayed?
Refer to "No sound output in all modes".
No sound from external input devices (3)
↓
↓
↓YES
↓YES
No sound from external input devices (4)
↓
↓
↓YES
↓YES
No sound from external input devices (5)
↓
↓
↓YES
NO
Check the connection to CN1703 and the external input device.
NO Check the line between CN1703 and IC U4201.
NO
Check the connection to CN1206 and the external input device.
NO
Check the line between CN1206 and IC U4201.
NO Refer to "Does not the picture of the HDMI signal input to
HDMI 1/HDMI side go out?".
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