Sharp LC-32LD164E Service Manual page 48

LC-32LD164
LC-32LD165
LC-32LD166
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
Does not the sound of the audio signal input to (SCART) go out?
MAIN UNIT:
Is the audio signal properly sent to pin (2) (SCT1_AUR_IN) and pin
(6) (SCT1_AUL_IN) of CN151?
Is the audio signal properly sent to pin (U20) (SCART1_L_IN) and
pin (R20) (SCART1 R IN) of IC U401?
Refer to "No sound output in all modes".
Does not the sound of the audio signal input to (HDMI1/2) go out?
Is picture of the signal input from HDMI 1/2 displayed?
Refer to "No sound output in all modes".
No sound from HEADPHONE_OUTPUT terminal.
TEREMINAL UNIT:
Is the HP_DET# signal input into pin (F17) of IC U401 from pin (6)
of a headphone terminal (CN602)?
Is the audio signal output from IC U401 pin (T18) andpin (U19) sent
to pin (2)( HPOUT_LT) and pin(3)( HPOUT_RT) of headphone
terminal CN602?
Check IC U401 and its peripheral circuits.
No sound from SPDIF_OUTPUT terminal.
TEREMINAL UNIT:
Is the SPDIF_OUT signal output from pin (R4) of IC U401 to pin
(1)of connector(CN603)?
Check IC U401 and its peripheral circuits.
No sound from external input devices (3)
↓
↓
↓YES
↓YES
No sound from external input devices (4)
↓
↓
↓YES
The audio signal is not output(1)
↓
↓
↓YES
↓YES
The audio signal is not output(2)
↓
↓
↓NO
NO
Check the connection to CN151 and the external input device.
NO
Check the line between CN151 and IC U401.
NO
Refer to "Does not the picture of the HDMI signal input to
HDMI1/2 go out?".
NO
Check the connection to CN602 and the external input device.
NO
Check the line between IC U601 and CN602.
NO
Check the connection to SPDIF_OUT and external devices.
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