TA-MR2ES - Sony Audio Service Manual (repair manual). Page 14

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14
14
TA-MR2ES
TA-MR2ES
IC Block Diagrams
– AMP Board –
• Waveform
– AMP Board –
1
IC400 
wd
 (X1)
80.1 ns
452 mVp-p
100 mV/DIV, 80 ns/DIV
IC601   
µ
PC2581V-S
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
DRIVE
IC403   TC74HC4053AP
15
16
14
13
12
11
10
9
2
1
3
4
5
6
7
8
Z-Z
Y-Y
X-X
X0
X
X1
Y
+VDD
VSS
-VEE
       INT
Z
    Y1
 Y0
LOGIC  LEVEL CONVERTOR
C OUT
IN
C
OUT
IN
C OUT
IN
C OUT
IN
C OUT
IN
C OUT
IN
Z1
Z0
IC303 CXD9725M
+VDD
VSS
28
26
25
21
27
LATCH
5 to 25 DECODER
24 bit SHIFT REGISTER
LATCH
5 to 25 DECODER
   LEVEL  
  SHIFT
LATCH
4 to 16 DECODER
LATCH
4 to 13 DECODER
LATCH
LATCH
4 to 13 DECODER
4 to 16 DECODER
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
24
23
22
NC
TVR-REF
TVR-IN
TVR-OUT
     M
VR-OUT
 
     
     M
VR-A-GND
NC
     
         M
VR-IN
NC
NC  
CK
  CS1
GND
NC
D
ATA
STB
C
S2
N
C
M
VR
-IN
N
C
     M
VR-A-GND
     M
VR-OUT
TVR-OUT
TVR-IN
TVR-REF
N
C
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