Hi-Fi Audio Block Diagram - Hitachi DV-PF2U Service Manual

Hi-Fi Audio Block Diagram

IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
SIF
57
TO
AUDIO
BLOCK
DIAGRAM
A-IN (R)-R
69
A-IN (R)-F
71
N-A-OUT
6
A-IN (L)-R
7
A-IN (L)-F
9
4-2-4
NOISE
DET
SIF SAP SAP
DEMOD FILTER DEMOD
L-R
DEMOD
STEREO PILOT
FILTER CANCEL
PILOT
DET
STEREO
PLL
SW
P
R-CH
NOISE
PNR
R
LIM
R-CH
48 47
INSEL
NOR
SW
L-CH
13 14
INSEL
LIM
R
L-CH
SW
PNR
NOISE
P
MAIN CBA
dBX
ST/SAP
DC
DEC
SW
MATRIX
COMP R-CH BPF
DEV
VCO LPF
OUTPUT
SELECT
HOLD
PULSE
NOISE
MATRIX COMP
DET
DEV VCO LPF
COMP L-CH BPF AGC
AGC
DET
PB-AUDIO SIGNAL REC-AUDIO SIGNAL
SERIAL 37
DATA
38
DECODER
39
MODE
51
OUT
BO ENV
23
DET DET
4
80
ALC MUTE
78
77
1
40
49
26
CN251
R
Hi-Fi-
24
Hi-Fi
31 30
27 Hi-Fi-
L
Mode : SP/REC
Hi-Fi-CS
TO SERVO/ SYSTEM
SERIAL-DATA
CONTROL BLOCK
SERIAL-CLK
DIAGRAM
ST/SAP-IN
TO SERVO/SYSTEM
CONTROL BLOCK
Hi-Fi/NOR-IN
DIAGRAM
N-A-IN
A-OUT (L)
TO AUDIO
BLOCK DIAGRAM
A-OUT (R)
Hi-Fi-H-SW TO SERVO/SYSTEM
CONTROL BLOCK
A-MUTE
DIAGRAM
CYLINDER
ASSEMBLY
Hi-Fi
A(R) 7
AUDIO
-COM 8
(R) HEAD
A(L) 9
Hi-Fi
AUDIO
(L) HEAD