Sharp LC-19S7E-BK Service Manual page 39

Does not the sound of the audio signal input to SCART1 go out?
Does not the sound of the audio signal input to SCART2 go out?
↓
TEREMINAL UNIT:
Is the audio signal properly sent to pin (6) (YPbPr2_AU_INL) and
pin (2) (YPbPr2_AU_INR) of SCART1(CN1901)?
Is the audio signal properly sent to pin (6) (SCHF_AU_INL) and pin
(2) (SCHF_AU_INR) of SCART2(CN1902)?
Is the audio signal properly sent to pin (1) (NO) and pin (1) (NO) of
IC U1702/U1701?
Is the audio signal properly sent to pin (3) (NC) and pin (3) (NC) of
IC U1702/U1701?
Is the audio signal properly sent to pin (72) (AUL1) and pin (73)
(AUR1) of IC U4201?
Refer to "No sound output in all modes".
Does not the sound of the audio signal input to YPbPr (Component) go out?
MAIN UNIT:
Is the audio signal properly sent to pin (8) (YPbPr1_AU_INL) and
pin (10)( YPbPr1_AU_INR) of CN1201?
Is the audio signal properly sent to pin (70) (AUL0) and pin (71)
(AUR0) of IC U4201?
Refer to "No sound output in all modes".
No sound from external input devices (1)
↓
↓YES
↓YES
↓YES
No sound from external input devices (2)
↓
↓
↓YES
↓YES
2008-03-14
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
NO
Check the setting of an external input device that connects of
CN1901.
NO Check the setting of an external input device that connects of
CN1902.
NO
Check the line between CN1901 and IC U1701/U1702.
NO
Check the line between CN1902 and IC U1701/U1702.
NO Check the line between IC U1701/U1702 and IC U4201.
NO
Check the connection to CN1201 and the external input device.
NO
Check the line between CN1201 and IC U4201.
39