Sony KDL-15G2000 Service Manual page 33

A B C
A2.-SE-1(KDL-15/20G2000)
1
2
R2148
XX
CN2022
49P
R2147
WHT 0
CHIP
+8.5V 1
+5V 2
GND 3
+33V 4
3
R2053
GND 5
0
PORT_CS 6
R2054 0
TUNER_I2C_SW 7
C2041
GND
8
XX
R2055
I2C_SCL_OFDM
9
R2056 0
I2C_SDA_OFDM 10
C2042
GND 11
XX
AGC_DIGITAL 12
R2039
GND 13
0
4
I2C_SCL 14
R2038 0
I2C_SDA 15
GND 16
IF_DIGITAL_-
17
IF_DIGITAL_+ 18
R2040
GND 19
0
CVBS_ANALOG_RF
CVBS_TUNER 20
C2037
XX
GND 21
TP1
V_YUV 22
C2038
GND 23 XX
5 TP2
U_YUV 24
C2039
GND
25 XX
TP3
Y_YUV
26
C2036
GND 27
XX
TO BDT/BDT-VGA BOARD
CVBS2_OUT 28
CN3005 C2030
R2044
GND 29
XX *
CVBS2_IN 30
R2045
MODE2 31
C2082
XX
AV_LINK 32
R2058
6
FBLK2 33
R2046 *
B2
34
R2059
GND 35
G2 36
R2047
GND 37
*
R2 38
R2048 R2060
GND 39
0
CVBS1_OUT 40
C2034
GND 41
XX
TP4
CVBS1_IN
42
7
MODE1
43 C2083
R2049
XX
FBLK1 44
R2062
TP5
B1 45
R2050
GND 46 0
TP6
G1 47
R2051
GND 48 0
TP7
R1 49
R2052
0
8
A2 (3/3) Board Waveforms
9
10
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
11
D E F
BUFFER_V
A / B BOARD CONNECTORS
8.5V
+5VA
33V
CN2024
20P
WHT
PORT_CS
AGC_DEFEAT
TUNER_I2C_SWITCH
SV_STBY/AUDIO MONO
GND
0
I2C_SCL_OFDM
AU_MUX_OUT_R
I2C_SDA_OFDM
AU_MUX_OUT_L
AU_MUX_CTRL_B
IF_AGC_DIGITAL
AU_MUX_CTRL_A
QSS
SCL_5V
TO BDT/BDT-VGA BOARD
GND
SDA_5V CN3006
NC
C2040
XX NC
IF_DIGITAL_-
GND
IF_DIGITAL_+
L2 OUT
R2 OUT
ANALOG_TUNER
GND
R2041
L1 IN
0
V_YUV
R1 IN
GND
R2042 0
U_YUV
L1 OUT
R1 OUT
R2043 0
Y_YUV
V-OUT-2B
R2057 *
V-IN-2
*
MODE2
AV_LINK
*
BLK2
BLUE-2
*
GREEN-2
RED-2
* V-OUT-1B VIDEO SCART1
R2061
V-IN-1
0
MODE1
0
BLK1
0 BLUE-1
GREEN-1
RED-1
(20us/div) (20us/div)
TP2 TP3
TP1
500mVp-p (H) 500mVp-p (H) 980mVp-p (H)
G H I J
5V_STBY
R2145
0
AGC_DEFEAT
1
AM
2 ANALOG_TUNER
R2144
3 XX
AU_MUX_OUT_R
4
AU_MUX_OUT_L
5
AU_MUX_CTRL_B
6
AU_MUX_CTRL_A
7
8
9
10
11
AUDIO SCART2
12
SC2-OUT-L
13
SC2-OUT-R
14
15
AUDIO SCART1
SC1-IN-L
16
SC1-IN-R
17
18
SC1-OUT-L
19
SC1-OUT-R
20
ANALOG_AGC_SW
(20us/div) (10us/div) (10us/div)
TP4 TP5
1Vp-p (H) 650mVp-p (H)
~ A2 Board Schematic Diagram [ Tuner, I/O Connectors & A/V Switching ] Page 3/3 ~
- 33 -
K L M
A2
3/3
SERVICE CONNECTOR
CN1000
XX
R1048
1 GND
XX
SCL_5V 2 SCL_5V
R1049 XX
SDA_5V 3 SDA_5V
PORT_CS
4 CS
R1050
5 NC
XX
I2C TUNER SWITCH (analog/digital)
R1005
XX
IC1000
MC74LVX8053DTR2
ANALOG MULTIPLEXER/
R1001
DEMULTIPLEXER
0
C1000
CHIP
47
SCL_5V Y1 VCC 35V
R1008
R1003
0
0
I2C_SCL_OFDM
Y0 Y I2C_SCL_SW
R1006
0
ANALOG_AGC
Z1 X
R1009
R1002 R1011
0
100 XX
1/10W Z X1
R1007
R1004
R1000
0
0
XX D1102
Z0
X0
UDZSTE-175.6B
ENABLE A I2C_SDA_OFDM
NC B TUNER_I2C_SWITCH
R1010
0
GND C
(10us/div) (10us/div)
TP6 TP7
650mVp-p (H) 650mVp-p (H)
N O
+5VA
R2146
C1001
XX
0.1
L1000
10uH
5V_STBY
I2C_SDA_SW
SDA_5V