Sony KDL-32U2520, Service Manual

Page: 26 / 112

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~ A1/A1P Board Schematic Diagram [ Tuner, I/O Connectors & A/V Switching ] Page 1C/2 ~
A1/A1P (3/3) Board Waveforms
500mVp-p (H) 500mVp-p (H)
TP1 TP2 TP3
980mVp-p (H)
(20us/div) (20us/div) (20us/div) (10us/div) (10us/div) (10us/div)
TP4 TP5 TP6
1Vp-p (H) 650mVp-p (H) 650mVp-p (H)
(10us/div)
650mVp-p (H)
TP7
A1/A1P.-SE1
AU_MUX_OUT_R
AU_MUX_CTRL_B
AU_MUX_CTRL_A
AU_MUX_OUT_L
I2C_SDA_OFDM
TUNER_I2C_SWITCH
I2C_SCL_OFDM
SDA_5V
SCL_5V
ANALOG_TUNER
VIDEO SCART1
Y_YUV
V_YUV
U_YUV
PORT_CS
AGC_DEFEAT
AUDIO SCART1
AUDIO SCART2
ANALOG_TUNER
OUT_R
OUT_L
8.5V
+5VA
33V
CHIP 0
R2053
CHIP 0
R2054
CHIP 0
R2055
CHIP 0
R2056
CHIP 0
R2040
CHIP 0
R2041
CHIP 0
R2042
CHIP 0
R2043
CHIP 0
R2044
CHIP 0
R2057
CHIP 0
R2045
CHIP 0
R2058
CHIP 0
R2046
CHIP 0
R2059
CHIP 0
R2047
CHIP 0
R2060
CHIP 0
R2048
CHIP 0
R2061
CHIP 0
R2049
CHIP 0
R2062
CHIP 0
R2050
CHIP 0
R2051
CHIP 0
R2052
XX C2042
XX C2041
CHIP 0
R2039
CHIP 0
R2038
XX C2040
XX C2037
XX C2038
XX C2039
XX C2036
XX C2030
XX C2034
VIDEO SCART2
XX C2082
XX C2083
IF_AGC_DIGITAL
IF_DIGITAL_-
IF_D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
WHT
49P
CN2022
8.5V
5V
GND
33V
GND
PORT_CS
TUNER_I2C_SW
GND
I2C_SCL_OFDM
I2C_SDA_OFDM
GND
AGC_DIGITAL
GND
I2C_SCL
I2C_SDA
GND
IF_DIGITAL_-
IF_D
GND
CVBS_TUNER
GND
V_YUV
GND
U_YUV
GND
Y_YUV
GND
CVBS2_OUT
GND
CVBS2_IN
MODE2
AV_LINK
FBLK2
B2
GND
G2
GND
R2
GND
CVBS1_OUT
GND
CVBS1_IN
MODE1
FBLK1
B1
GND
G1
GND
R1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
WHT
20P
CN2024
AGC_DEFEAT
SV_STBY/AUDIO MONO
GND
AU_MUX_OUT_R
AU_MUX_OUT_L
AU_MUX_CTRL_B
AU_MUX_CTRL_A
QSS
GND
LINEOUT_R
LINEOUT_L
GND
L2 OUT
R2 OUT
GND
L1 IN
R1 IN
GND
L1 OUT
R1 OUT
XX
R2144
0
R2145
5V_STBY
JL2112
JL2113
JL2114
JL2115
JL2117
JL2116
JL2118
JL2120
JL2121
JL2122
JL2123
JL2124
JL2125
JL2127
JL2128
JL2129
JL2126
JL2119
JL2130JL2131JL2132JL2133 JL2134 JL2135 JL2136 JL2137
XX
R2148
CHIP
0
R2147
BUFFER_V
SC1-IN-L
SC1-IN-R
SC1-OUT-L
SC1-OUT-R
SC2-OUT-L
SC2-OUT-R
V-IN-2
MODE2
AV_LINK
BLK2
V-IN-1
MODE1
BLK1
RED-1
BLUE-2
GREEN-2
RED-2
V-OUT-1B
BLUE-1
CVBS_ANALOG_RF
GREEN-1
V-OUT-2B
QSS
A / B BOARD CONNECTORS
A1/A1P
1 C / 2
TP1
TP2
TP3
TP5
TP6
TP7
TP4