Sansei TS5129T, Service Manual

Page: 6 / 33

IC Block Diagrams
-6-
IC001 < Audio AMP. > LA4270-E
Thermal
Protection
-
+
AMP
Pump
Up
1
INVER
TING
INPUT
2
Vcc
3
PUMP UP OUT
4
GND
5
Ve
r.
OUTPUT
6
OUTPUT ST
A
GE Vcc
7
NON INV
.
INPUT
IC501 < Vertical Output > LA78041-E
CH1
CH2
Thermal
Shutdown
Over
Voltage
Ripple
Filter
30K
300
30K
300
Vcc
-
+
+
-
F
eedbac
k 1
Input 1
Ripple filter
Input side ear
th
Input 2
F
eedbac
k 2
Output 2
Output side ear
th
Po
w
er supply
Output 1
LA4270
1
2 3 4
5 6
7
8
9 10
IC1001 < AV Selector > MM1313BD
41
1
7
13
27
MTV-V
V1-V
V2-V
V3-V
STV-V
3
9
5
11
42
0dB
0dB
V1-Y
V2-Y
V1-C
V2-C
MTV-L
2
8
14
25
V1-L
V2-L
V3-L
STV-L
40
4
10
16
MTV-R
V1-R
V2-R
V3-R
26
36
19
20
STV-R
BIAS
SCL
SDA
BIAS
30
GND
I
2
C LOGIC
28
21
12
6
24 R
OUT
2 R
OUT
2
S1
S2
ADDRESS
Mute
-6dB
6dB
6dB
32 R
OUT
1
33
22
L
OUT
1
L
OUT
2
-6dB
31
37
29
39 C
OUT
1
C
IN
1
Y
OUT
1
V
OUT
2
23
Y
IN
1
34 V
OUT
1
6dB
38
V
cc
6dB
-6dB
COMB