Service manual

1-7-3
Audio Block Diagram
T5553BLA
B
LOCK DIAGRAM FOR SECTION 2 (DECK MECHANISM)
MAIN CBA
PB-AUDIO SIGNAL REC-AUDIO SIGNAL
IC301(CHROMA/DEFLECTION SIGNAL PROCESS)
IC401
Mode : SP/REC
BIAS OSC
Q872
P-ON+5V
P-ON+5V
Q871
Q873 Q874
Q875
(AUDIO SIGNAL PROCESS)
IC801 (AMP)
SPEAKER
1
SP-GND 2
JK801 EARPHONE JACK
SP801 SPEAKER
CN801
CL802
SP-MUTE
TU-AUDIO
TO CHROMA/TUNER BLOCK
TP401
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
3 4 6
FE HEAD UNIT
SERIAL
I/F
AUDIO AT T
SDA
SCL
TO SERVO/SYSTEM CONTROL BLOCK
TUNER
REC AMP
AUTO BIAS
LINE AMP
MUTE
P
R
ALC
TUNER
LINE
D-REC-H
A-MUTE
TO SERVO/ SYSTEM CONTROL BLOCK
WF8
32
EQ AMP
SP/LP-ON
5
24 14 15 26 21
LINE
VCR
10
6
8 9
58
11
5
4 3
78 76
2
MUTE /STANDBY
2
AMP
61
JK702 FRONT A-IN
WF9
TO SERVO/SYSTEM CONTROL BLOCK