Sharp LC-19LE320 Service Manual page 41

The audio signal of UHF/VHF is not output from SCART1.
TEREMINAL UNIT:
Is audio signal output from IC U106 sent to pin
(3)(SCT1_AUL_OUT) and pin(1)(SCT1_AUR_OUT) of
SCART1(CN151)?
Is audio signal output from IC U401 is sent to pin (2) (1IN-) and pin
(6) (2IN-)of IC U106?
Check IC U401 and its peripheral circuits.
No audio signal output from LINE_AUDIO_OUTPUT terminal.
TEREMINAL UNIT:
Is audio signal output from IC U107 sent to
pin(4)(Audio_Line_Out_L) and pin (6)(Audio_Line_Out_R) of
LINE_AUDIO_OUT connector(CN140)?
Is audio signal output from IC U401 is sent to pin (2) (1IN-) and pin
(6) (2IN-)of IC U107?
Check IC U401 and its peripheral circuits.
No audio signal output from SPDIF_OUTPUT terminal.
TEREMINAL UNIT:
Is ASPDIF audio signal output from pin (K33) of IC U401 to pin (6)
of connector CN116?
Check IC U401 and its peripheral circuits.
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
The audio signal is not output (1)
↓
↓
↓NO
↓NO
The audio signal is not output (2)
↓
↓
↓NO
↓NO
The audio signal is not output (3)
↓
↓
↓NO
2008-03-14
YES Check the connection to SCART1 and external devices.
YES
Check the line between IC U401 and IC U106.
YES
Check the connection to LINE_AUDIO_OUT and external
devices.
YES
Check the line between IC U401 and IC U107.
YES Check the connection to SPDIF_OUT and external devices.
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