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13.5. AUDIO BLOCK DIAGRAM
AMP
AMP
(DV2)
AOUTR
AOUTL
DIF0/CDTI
ACKS/C CLK
SMUTE/CSM
SDTI
BICK
LRCK
JK4401
2
IC4301
1
MIC
AMP
1
IC4671
3
MIC
AMP
7
IC4671
5
7
IC4301
6
(AUDIO D/A CONVERTER)
DE-EMPHASIS
CONTROL
CLOCK
MCLK
DIVIDER
8X ∆Σ
INTERPOLATOR
8X
INTERPOLATOR
MODULATOR
∆Σ
MODULATOR
ATT
AMP
Q4751
ATT
SCF
LPF
SCF
LPF
INTERFACE
DATA
AUDIO
INTERFACE
µP
177
169
170
171
AUDIO MAIN SIGNAL
MIX R
JK4401
DIGITAL
AUDIO OUT
(COAXIAL)
MIX L
5Vp-p(10usec./div.)
IC8001-171
IECOUT
IC8421
SRCK
LRCK
57
STO3
56
SBT3
53
STBDAC
DACCK
IC8001
ADOUT3
DVD-K29GCS
AUDIO BLOCK DIAGRAM
0.44Vp-p(0.5msec./div.)
IC8421-10,11
3
2
4
8
7
6
1
11
10
163
FROM
IC6001-62PIN
MUTE
Q4422
MUTE
QR4307,4308
Q4950,
MUTE
QR4302,QR4306
MUTE
CONTROL
Q4924
MUTE
Q4423
SWITCHING
NP-MUTE
Q4302
FROM
IC6001-26PIN
SWITCHING
QR4304
FROM
IC8001-55PIN
FROM
IC6001-19PIN
SWITCHING
A-MUTE
QR8431
TO
MIC DET
IC6001-27PIN
ATT.
Q4940
MUTE
Q4947
MUTE
Q4948
VR2102
(MIC VOL)
IC4691
(MIC AMP)
1
6
7
2
MIC 1
J4671
MIC 2
J4672
DVD-K29GCS
40