Hi-Fi Audio Block Diagram - Hitachi DV-PF73U Service Manual

6-4 Hi-Fi Audio Block Diagram

IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
SIF
57
FROM/TO
AUDIO BLOCK
74
A-IN(R)
69
A-IN(R)-F
71
N-A-OUT
6
A-IN(L)
7
A-IN(L)-F
9
FROM DVD
DVD-A(L)
12
AUDIO BLOCK
DVD-A(R)
<DVD SECTION>
SAP
CONT
DET
SIF SAP
SAP
DEMOD FILTER
DEMOD
STEREO PILOT
62 63
FILTER CANCEL
PILOT
DET
STEREO
PLL
SW
P
R-CH
NOISE
PNR
R
LIM
R-CH
INSEL
48 47
NOR
SW
13 14
L-CH
INSEL
LIM
R
L-CH
SW
PNR
NOISE
P
PB-AUDIO SIGNAL
MAIN CBA
dBX
ST/SAP
L-R
DEC
SW
MATRIX
DEMOD
DC
COMP R-CH BPF
DEV VCO LPF
OUTPUT
SELECT
HOLD
PULSE
NOISE
MATRIX COMP
DET
DEV VCO LPF
COMP L-CH BPF LIM
REC-AUDIO SIGNAL DVD AUDIO SIGNAL
SERIAL IIC-BUS SDA
37
DATA
38
DECODER
RIPPLE
P-ON+9V
54
FILTER
MODE ST/SAP-MODE
40
OUT
DO ENV
23
DET DET
4
80
ALC MUTE 2
78
77
1
39
49
26
CL253
R
Hi-Fi- A(R)
24
34 33 Hi-Fi -COM
Hi-Fi- A(L)
27
L
Mode : SP/REC
FROM/TO
SERVO/ SYSTEM
IIC-BUS SCL
CONTROL BLOCK
TO SERVO/SYSTEM
NORMAL-H
CONTROL BLOCK
N-A-IN
A-OUT (L)
FROM/TO
MOD-A
AUDIO BLOCK
A-OUT (R)
Hi-Fi-H-SW
FROM
A-MUTE-H SERVO/SYSTEM
CONTROL BLOCK
CYLINDER
ASSEMBLY
Hi-Fi
7
AUDIO
8
(R) HEAD
9
Hi-Fi
AUDIO
(L) HEAD
27