AEG VCR-D 4501 Service Manual page 22

Dvd player & video cassette recorder
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Audio Block Diagram
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
+5V
Q404
CL504
4 A-PB/REC
Q403
3 A-COM
BIAS
1 AE-H
OSC
2 AE-H/FE-H
Q406
SWITCHING
D-REC-OFF
Q405
CL501
2 FE-H
1 FE-H-GND
Q401
(PB=ON)
1-9-5
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
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
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
1-9-6
Mode : SP/REC
12
11
A-MUTE-H
IIC-BUS SDA
TO SERVO/SYSTEM
CONTROL BLOCK
IIC-BUS SCL
H9504BLA

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