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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.)
N-A-PB
TO Hi-Fi
N-A-REC
AUDIO BLOCK
(DECK ASSEMBLY)
ACE HEAD ASSEMBLY
CL287
AUDIO
A-PB/REC
4
HEAD
A-COM
3
AE-H
1
AUDIO
ERASE
AE-H/FE-H
2
HEAD
FE HEAD
FULL
ERASE
HEAD
1-9-17
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.
+5V
Q401
CL504
4 A-PB/REC
Q402
3 A-COM
BIAS
1 AE-H
OSC
2 AE-H/FE-H
Q406
Q404 (PB=ON)
SWITCHING
D-REC-OFF
Q403
CL501
2 FE-H
Q405
1 FE-H-GND
(PB=ON)
PB-AUDIO SIGNAL
MAIN CBA
IC301
(AUDIO SIGNAL PROCESS)
PB-ON
5
EQ
8
9
AMP
6
SP/LP-ON
7
1
AUTO
3
100
BIAS
2
+5V
Comparison Chart of Models & Marks
Model
VR530/58
VR630/58
VR330/58
VR730/58
VR732/58
REC-AUDIO SIGNAL
Mode : SP/REC
13
15
17
IN1
TUNER
IN2
ALC
DET
INV
R
LINE
ALC
MUTE
AMP
ATT
P
REC-ON
REC
AMP
SERIAL
DECODER
AUDIO HD-SW
CONTROL
16
68 69
71
1-9-18
Mark
Model
Mark
W
VR830/58
AB
X
VRQ45/16
AC
Y
VRQ45/39
AD
Z
VRQ45/58
AE
AA
12
11
A-MUTE-H
I2C BUS-SDA
TO SERVO/SYSTEM
CONTROL BLOCK
I2C BUS-SCL
HC464BLA
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