YES
YES
YES
YES
YES
NO
NO
NO
NO
No monitor audio output when receiving digital
broadcasting
Does IC5401 (AUD_AMP) function well?
Check the digital unit.
Check IC5401 and its peripheral circuits.
NO
Check between IC5401 and IC1108.
(Q1107, Q1108, etc.)
Check IC5401 and its peripheral circuits.
Check from the connector (FC, SC5401) of AV
UNIT to the periphery of IC5704.
Is digtal audio signal supplied from the main unit to
pins (10) ~ (13) of AV UNIT connector (FC,
SC5401)?
Are the analog-converted audio signals outputted
to output terminal pins (11) and (8) of IC5402?
Are audio signals supplied to the input terminal
pins (1)/(4) and (11)/(12) of IC1108?
Are signals I2SLRCLK, I2CDATA, I2SSCLK and
AUDMCLK inputted to the input terminals (pins (1)
to (4)) of IC5402 (DAC)?
NO
YES
NO
NO
NO
YES
NO
YES
YES
YES YES
YES
No sound comes out. (2)
Are audio output pins (37) and (36)
(SC1_OUT_L/R) of IC2501 (MULTI_SOUND_
PROCESSOR) as specified?
Are audio output pins (7) and (1) of IC2504
(EQ_AMP) as specified?
Are audio output pins (3) and (13) of IC1108 as
specified?
Check the line from IC1108 to the MONITOR
OUTPUT (J1106) terminal.
Are the audio signals inputted to input terminal
pins (2) and (5 ) and pins (14) and (15) of IC1108
(AUDIO_SW)?
No monitor audio output comes out.
Is the audio output of monitor output set to
"Variable"?
Check IC2501 and its peripheral circuits.
Reset the audio output of monitor output to
"Fixed".
Check IC2504 and its peripheral circuits.
Check the line from IC2504 to IC1108.
Check IC1108 and its peripheral circuits.
Is the control signal inputted to pin (10) of IC1108
as specified?
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