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1-12-3
Audio Block Diagram
E8B23BLA
98
REC
AMP
7
6
AU
T
O
BIAS
99
P-ON+5V
P-ON+5V
Q401
BIAS
OSC
Q402
N-A-PB
T
O
Hi-Fi A
UDIO
BLOCK DIA
GRAM
N-A-REC
Q405
(PB=ON)
Q403
SWITCHING
D-REC-OFF
4
EQ
AMP
100
1
2
LINE
AMP
MUTE
96
3
PB-ON
SP/LP-ON
P
R
ALC
IC301
(A
UDIO PR
OCESS)
76
3
A
UDIO-PB/REC
CN504
4
A-COM
6
AE-H
1
AE-H/FE-H
A
UDIO
HEAD
A
UDIO
ERASE
HEAD
A
C
E HEAD ASSEMBL
Y
FE HEAD
2
FE-H
1
FE-H-GND
CN501
MAIN CB
A
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
Mode : SP/REC
10
D-REC-H
A
UDIO-MUTE-H
FULL
ERASE
HEAD
23
24
SERIAL
DECODER
(DECK ASSEMBLY)
LINE1
LINE2
80
A
UDIO-IN-F
IIC-B
US SCL
IIC-B
US SD
A
T
O
SER
V
O/SYSTEM
CONTR
OL BLOCK
DIA
GRAM
“
“ = SMD
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)