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Hi-Fi Audio Block Diagram ( W,X,Z,AA,AB,AC,AD,AE )
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
"
" = SMD
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
JK101
CL101
CL151
A-IN1(R)
2
10
A-IN1(R)
10
A-IN1(L)
8
A-IN1(L)
8
6
A-OUT1(R)
1
6
A-OUT1(R) 6
12
A-OUT1(L) 12
A-OUT1(L)
3
JK102
CL102
CL152
A-IN2(R)
2
9
A-IN2(R)
9
8
A-IN2(L)
8
A-IN2(L)
6
A-OUT2(R)
1
6
A-OUT2(R) 6
A-OUT2(L)
3
11
A-OUT2(L) 11
JACK CBA
TU701
21
TU-AUDIO
AUDIO
2
22
SIF
Z,AA,AB
JK758
A-IN(R)
FRONT
JK757
A-IN(L)
AFV CBA
CN701
CN1
CN1
2
2
4
TU-AUDIO(R) 4
SIF
IF SINAL
1
TU-AUDIO 1
PROCESS
5
TU-AUDIO(L) 5
N-A-REC
TO AUDIO BLOCK
N-A-PB
1-9-21
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
JK751
A-OUT(R)
FRONT
A-OUT(L)
Z,AA,AB,AC,AD,AE
IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
76
75
SW
SW
ALC
ALC
R-CH
D.C.
D.C.
PNR
69
47
73
R-CH
48
INSEL
71
51
65
67
7
11
L-CH
13
INSEL
9
53
14
CN701
L-CH
NOR
PNR
SW
6
4
PB-AUDIO SIGNAL
MAIN CBA
SW
COMP
R-CH BPF
NOISE
P
R
LIM
DEV
VCO
LPF
OUTPUT
SELECT
HOLD
PULSE
NOISE
MIX
DET
LIM
DEV
VCO
LPF
R
P
SW
COMP
L-CH BPF
NOISE
Comparison Chart of
Models & Marks
REC-AUDIO SIGNAL
Mode : SP/REC
I2C-BUS SDA
SERIAL
38
DATA
I2C-BUS SCL
39
DECODER
Q451
DO
ENV
A-MODE
23
DET
DET
W,X,Z,AA,
AB,AC,AE
80
ALC
MUTE
2
78
Hi-Fi-H-SW
40
COMP
26
CL253
R
24
Hi-Fi-
A(R)
7
LIM
31
30
Hi-Fi
-COM 8
Hi-Fi-
A(L)
9
L
27
1-9-22
Model
Mark
VR530/58
W
VR630/58
X
VR330/58
Y
VR730/58
Z
VR732/58
AA
VR830/58
AB
VRQ45/16
AC
VRQ45/39
AD
VRQ45/58
AE
TO
SERVO/ SYSTEM
CONTROL BLOCK
CYLINDER
ASSEMBLY
Hi-Fi
AUDIO
(R) HEAD
Hi-Fi
AUDIO
(L) HEAD
HC464BLH
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