Sony KP-43T70 Service Manual page 58

1
• A (1/3) BOARD WAVEFORMS
1 2
A
1Vp-p (H) 1.5Vp-p (H)
3 4
B
2.4Vp-p (H) 1.2Vp-p (H)
5 6
C
3.3Vp-p (H) 3.4Vp-p (H)
7 8
D
2.8Vp-p (H) 4.1Vp-p (H)
9 10
16MHz E
4.1Vp-p (H) 3.3Vp-p (V)
F
A (1/3) BOARD : IC406 TDA7265
+VS
3
MUTE / ST-BY 5
L + IN 7
4 L OUT
G
8 L -IN
GND 9
10 R -IN
2 R OUT
R + IN 11
1 6
R-VS L-VS
H
A (1/3) BOARD : IC1011 CXA2079Q
I
TV 63
6dB 53
V1 1 VOUT1
49 YIN1
V2 8
56 YOUT1
V3 15
6dB
V4 22
55 TRAP1
V5 60 J
6dB
58 COUT1
Y1 3
51 CIN1
Y2 10
6dB 41 VOUT2
Y3 17
45 YIN2
K
Y4 24
39 YOUT2
6dB
C1 5
6dB
37 COUT2
C2 12
43 CIN2
C3 19
L
57 VGND
C4 26
BIAS
50 BIAS
42 V
CC
35 AGND
6dB 44 AGND2
LTV 62
52 LOUT1
LV1 2
0dB
M
LV2 9
54 ROUT1
LV3
16 6dB
LV4 23
38 LOUT2
LV5 59 0dB
40 ROUT2
6dB
36 DC OUT
N
RTV
64
33 SCL
6dB
RV1 4
34 SDA
RV2 11
32 ADR
RV3 18
7 S-1
RV4 25
14 S-2
RV5 61
Logic 21 S-3
O
28 S-4
NC 29 6 S2-1
NC 30 13 S2-2
NC 31 20 S2-3
NC 46 27 S2-4
NC 47 48 MUTE
Schematic diagram
A (1/3) S
board /
– 71 –
2 3 4 5 6 7
– 72 –
8 9 10 11 12 13 14
– 73 –
15 16 17 18 19 20 21 22 23 24
– 74 –