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A
B
C
1
A1.-SE-1(KDL-26/32U2000) / A1P.-SE-1(KDL-40U2000)
R2148
XX
R2147
XX
2
+8.5V
1
+5V
2
GND
3
+33V
4
GND
5
R2053
PORT_CS
6
R2054
0
TUNER_I2C_SW
7
C2041
XX
GND
8
R2055
I2C_SCL_OFDM
9
R2056
0
I2C_SDA_OFDM
10
3
GND
11
C2042
XX
AGC_DIGITAL
12
R2039
GND
13
0
I2C_SCL
14
R2038
0
I2C_SDA
15
GND
16
C2040
XX
IF_DIGITAL_-
17
IF_DIGITAL_+
18
R2040
GND
19
0
4
CVBS_TUNER
20
C2037
GND
21
TP1
XX
V_YUV
22
R2041
GND
23
TP2
C2038
XX
TO BDT BOARD
U_YUV
24
CN3005
R2042
GND
25
TP3
C2039
XX
Y_YUV
26
C2036
XX
GND
27
R2044
0
CVBS2_OUT
28
C2030
XX
GND
29
5
CVBS2_IN
30
R2045
MODE2
31
C2082
XX
AV_LINK
32
FBLK2
33
R2046
0
B2
34
R2059
GND
35
G2
36
R2047
R2060
GND
37
0
R2
38
GND
39
C2034
R2048
6
XX
0
CVBS1_OUT
40
GND
41
TP4
CVBS1_IN
42
C2083
XX
MODE1
43
R2049
FBLK1
44
TP5
B1
45
R2050
GND
46
0
TP6
G1
47
R2051
GND
48
0
TP7
CHIP
7
R1
49
R2052
CN2022
0
49P
CHIP
WHT
8
9
10
11
All manuals and user guides at all-guides.com
D
E
F
BUFFER_V
8.5V
+5VA
AGC_DEFEAT
1
SV_STBY/AUDIO MONO
2
+33V
GND
3
AU_MUX_OUT_R
0
4
PORT_CS
AU_MUX_OUT_L
5
TUNER_I2C_SWITCH
AU_MUX_CTRL_B
6
AU_MUX_CTRL_A
7
0
I2C_SCL_OFDM
QSS
8
I2C_SDA_OFDM
GND
9
LINEOUT_R
10
TO BDT BOARD
IF_AGC_DIGITAL
LINEOUT_L
11
CN3006
GND
12
SCL_5V
L2 OUT
13
SDA_5V
R2 OUT
14
GND
15
IF_DIGITAL_-
L1 IN
16
IF_DIGITAL_+
R1 IN
17
GND
18
ANALOG_TUNER
L1 OUT
19
CVBS_ANALOG_RF
R1 OUT
20
V_YUV
CN2024
20P
WHT
0
U_YUV
0
Y_YUV
R2043
0
V-OUT-2B
R2057
0
-IN-2
V
0
MODE2
R2058
0
AV_LINK
BLK2
BLUE-2
0
GREEN-2
0
RED-2
VIDEO SCART1
V-OUT-1B
R2061
0
V-IN-1
MODE1
0
BLK1
R2062
0
BLUE-1
GREEN-1
RED-1
A / B BOARD CONNECTORS
A1/A1P (3/3) Board Waveforms
(20us/div)
(20us/div)
TP2
TP3
TP1
980mVp-p (H)
500mVp-p (H)
500mVp-p (H)
G
H
I
R2145
0
5V_STBY
AGC_DEFEAT
AM
ANALOG_TUNER
R2144
XX
AU_MUX_OUT_R
AU_MUX_OUT_L
AU_MUX_CTRL_B
AU_MUX_CTRL_A
OUT_R
OUT_L
AUDIO SCART2
SC2-OUT-L
SC2-OUT- R
AUDIO SCART1
SC1-IN-L
SC1-IN-R
SC1-OUT-L
SC1-OUT-R
I2C TUNER SWITCH
SCL_5V
I 2C_SCL_OFDM
ANALOG_AGC
R1000
XX
ANALOG_AGC_SW
(20us/div)
(10us/div)
(10us/div)
TP4
TP5
1Vp-p (H)
650mVp-p (H)
~ A1/A1P Board Schematic Diagram [ Tuner, I/O Connectors & A/V Switching ] Page 3/3 ~
- 34 -
J
K
L
A1/A1P
3 /3
R1005
XX
IC1000
L1000
MC74LVX8053DTR2
10uH
ANALOG MULTIPLEXER/
R1001
DEMULTIPLEXER
100
C1000
C1001
1/10W
47
0 . 1
R1008
Y1
VCC
25V
0
35V
CHIP
Y0
Y
I2C_SCL_SW
D1102
R1003
UDZSTE-175.6B
0
Z1
X
I2C_SDA_SW
R1006
R1002
R1011
0
100
1k
Z
X1
1/10W
1/10W
R100 4
R1009
SDA_5V
0
0
CHIP
Z0
X0
R1007
0
A
ENABLE
I2C_SDA_OFDM
NC
B
TUNER_I2C_SWITCH
R1010
0
GND
C
(10us/div)
(10us/div)
TP6
TP7
650mVp-p (H)
650mVp-p (H)
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
M
N
O
+5VA
R2146
XX
5V_STBY
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