Block Diagram - Audio Section - Sony TA-MR2ES Service Manual

TA-MR2ES
Q Q
3-1. BLOCK DIAGRAM – AUDIO SECTION –
3 7 6 3 1 5 1 5 0
J300
IC300
BUFFER
3
L
1
2
AUDIO IN
R R-CH
IC301
BUFFER
3
1
L
2
AUDIO OUT
R R-CH
IC305
AUDIO SENSE
3
1
2
T E
L 1 3 9 4 2 2 9 6 5 1 3
Q300,350
DET
8 15
w w w
TA-MR2ES
IC303
ELECTRIC VOLUME
20 8 VRIN OUT 23
8 16 DATA TRIM 24
13 17 25
IC304
OP AMP
5
7
6
1 2 3 4 5 6 7
NC
IC405
BUFFER
14 13 12 11 10 9 8
+5V
31 51
52
IC400(1/2)
AUDIO SENSE
SYSTEM CONTROLER
x a o
. i
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IC601
POWER AMP
Q653
8 8 IN2 +VOUT2 12
BOOSTER
Q651,652
LIMMITER
11 9
CONTROL
Q654
BOOSTER
Q Q
3 7 6
44 25
u 1 6 3
y
6 6
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2 4
8 9 9
Q201
Q655,656
RELAY
Q607,608,609
CURRENT
PROTECTOR DRIVE
DETECTOR
3 1 5 1 5 0 8 9 2
m
c o
.
2
8 9 9
TM650
L-CH
SPEAKER
+12V
RY202
TM600
R-CH
4 9 8 2 9 9
• R-CH is omitted due to same as L-CH.
• Signal Path
: AUDIO