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Audio Block Diagram
TYPE B
TU701
EWV601B
J192
SIF OUT 15
AUDIO-OUT
14
AUDIO-IN
2
WF8
WF13
TYPE A
TU701
EWV401B
J20
SIF OUT 22
AUDIO-OUT 21
AUDIO-IN
2
WF8
WF13
J23
JK751
A-OUT (R)
A-OUT (L)
EWV601B
REAR
JK752
A-IN (L)
A-IN (R)
JK754
A-IN (L)
EWV601B
FRONT
JK755
A-IN (R)
(DECK
ASSEMBLY)
AC HEAD
ASSEMBLY
AUDIO
HEAD
AUDIO
ERASE
HEAD
FE HEAD
FULL
ERASE
HEAD
NOTE: The Tuner Unit (TU701) is either type A or type B.
Wave Form will be different. It depends on the type
of tuner used on the unit you are servicing.
EWV401B
J193
J03
EWV401B
TP752
A-OUT
EWV401B
TP753
TP754
A-OUT(R)
A-OUT(L)
CL504
4 A-PB/REC
Q422
3 A-COM
BIAS
1 AE-H
OSC
2 AE-H/FE-H
Q426
(PB=ON)
CL501
1 FE-H
2 FE-H-GND
1-8-5
MAIN CBA
EWV401B
EWV601B
IC301
(AUDIO PROCESS)
4
1
100
EQ
AMP
2
SP/LP-ON
3
Q421
AUTO
99
6
BIAS
P-ON+5V
SWITCHING
D-REC OFF
Q425
P-ON+5V
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
EWV601B
SIF
J52
N-A-OUT
MOD-A
A-OUT (R)
A-OUT (L)
A-IN (L)
A-IN (R)
A-IN (L)-F
A-IN (R)-F
N-A-IN
J55
80
78
76
REAR
TUNER
FRONT
ALC
R
LINE
96
MUTE
AMP
P
REC
7
98
AMP
11 12
16
D-PB-H
A-MUTE-H
D-REC-H
1-8-6
Mode : SP/REC
FROM/TO
Hi-Fi AUDIO
BLOCK
FROM
SERVO/SYSTEM
CONTROL BLOCK
HB3J1BLA
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