Audio Block Diagram
BLOCK DIAGRAM FOR SECTION 2 (DECK MECHANISM)
MAIN CBA
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
1-8-5
JK702
A-IN
48
26
27
53
IC301
IC401
Mode : SP/REC
T4300BLA
1-8-6
BIAS
OSC
Q872
P-ON+5V
P-ON+5V
Q871
Q873
Q874
Q875
(AUDIO PROCESS)
7
1
IC801 (AMP)
SP
1
SP-GND
2
JK801
EARPHONE JACK
JK802
EARPHONE JACK
SP801
SPEAKER
CN801
SP-MUTE
FROM PIN 12
OF IC201
TU-AUDIO
FROM
CHROMA/TUNER
BLOCK
TP401
(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
A-OUT
AUDIO
HEAD
AC HEAD ASSEMBLY
A-COM
A-PB/REC
CL402
AUDIO
ERASE
HEAD
AE-H
AE-H/FE-H
2
1
FE-H
FE-H GND
FULL
ERASE
HEAD
CL403
4
3
1
FE HEAD UNIT
LIMITER
SERIAL
I/F
FM DET
AF
AMP
SDA
SCL
CN287
4
3
A-COM
A-PB/REC
1
2
AE-H
AE-H/FE-H
FROM/TO
SERVO/SYSTEM
CONTROL BLOCK
LINE/PB
TUNER
ATT
Q302
BUFFER
REC
AMP
7
98
6
AUTO
BIAS
99
LINE
AMP
MUTE
96
P
R
ALC
76
80
TUNER
LINE
71
12
D-REC-H
D-REC-H
A-MUTE
EXT-H/INSEL
TO SERVO/
SYSTEM
CONTROL
BLOCK
4
11
WF8
OUTPUT
AMP
WF9
WF7
51
54
3
1
EQ
AMP
100
SP/LP-ON
2
MUTE
5
2
SC309C, F3809U,6309CC, EWC0902
SSC092