Sharp LC-19S7E-BK, Service Manual

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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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Does not the sound of the audio signal input to SCART1 go out?
TEREMINAL UNIT:
↓
↓ YES
↓ YES
No sound from external input devices (2)
↓
Does not the sound of the audio signal input to YPbPr (Component) go out?
MAIN UNIT:
↓
↓ YES
↓ YES
No sound from external input devices (3)
↓
Does not the sound of the audio signal input to PC(VGA) go out?
MAIN UNIT:
↓
↓ YES
↓ YES
Is the audio signal properly sent to pin (6) (YPbPr2_AU_INL) and
pin (2) (YPbPr2_AU_INR) of SCART1(CN1901)? Check the setting of an external input device that connects of
CN1901. NO
Is the audio signal properly sent to pin (72) (AUL1) and pin (73)
(AUR1) of IC U4201? NO
Check the line between CN1901 and IC U4201
Refer to “ No sound output in all modes ” .
Is the audio signal properly sent to pin (8) (YPbPr1_AU_INL) and
pin (10)( YPbPr1_AU_INR) of CN1201?
NO
Check the connection to CN1201 and the external input device
Refer to “ No sound output in all modes ” .
Is the audio signal properly sent to pin (70) (AUL0) and pin (71)
(AUR0) of IC U4201?
NO
Check the line between CN1201 and IC U4201.
.
Is the audio signal properly sent to pin (2) (PC_AU_INL) and pin (3)
(PC_AU_INR) of CN1702?
NO
Check the connection to CN1702 and the external input device.
Refer to
“
No sound output in all modes
”
.
Is the audio signal properly sent to pin (75) (AUL2) and pin (76)
(AUR2) of IC U4201? NO Check the line between CN1702 and IC U4201.