Block Diagrams(1) - Sony KDL-32U2520 Service Manual

4-1. BLOCK DIAGRAMS (1)
TU1300
TUNER
ANALOG IF
DIGITAL IF 2
DIGITAL IF 1
CN2022
17 IF DIGITAL -
18 IF DIGITAL +
12 AGC DIGITAL
7 TUNER 12C SW
10 12C SDA OFDM
9 12C SCL OFDM
22 V-YUV
24 U-YUV
26 Y-YUV
2 5V
20 CVBS TUNER
28 CVBS2 OUT
30 CVBS2 IN
31 MODE 2
32 AV LINK
TO BDTR-2 BOARD
33 FBLK 2
CN3005
34 B2
36 G2
38 R2
1 8.5V
4 33V
40 CVBS1 OUT
42 CVBS1 IN
43 MODE 1
44 FBLK 1
45 B1
47 G1
49 R1
14 12C SCL
15 12C SDA
CN2021
19 VIDEO OUT
7 BLUE IN
8 MODE 1
11 GREEN IN
15 RED IN
SCART 1 16 BLANKING
AV 1
20 VIDEO IN
6 LEFT IN
2 RIGHT IN
3 LEFT OUT
1 RIGHT OUT
TUNER BLOCK
ANALOG AGC SW
TU AGC
12C SCL SW
SCL
12C SDA SW
SDA
33V
33V 33V
+5VA
5V 5V
IF ANALOG
RECTIFIER
IF AGC DIGITAL
IF AGC
IC1000
IF DIGITAL + ANALOG MULTIPLEXER/ 5V
DEMULTIPLEXER STBY
IF DIGITAL -
ANALOG AGC SW 5V
Z VCC
4 16
12C SCL SW ANALOG AGC
15 Y Z1 3
12C SDA SW
14 X
TUNER 12C SW
9 C
TUNER 12C SW
10 B
TUNER 12C SW
11 A
12C SDA OFDM
X0
12
12C SCL OFDM
2 Y0
SDA 5V
13 X1
SCL 5V
1 Y1
TUNER SWITCH
+5VA
V OUT 2 B
V IN 2
MODE 2
AV LINK
BLK 2
BLUE 2
GREEN 2
RED 2
8.5V
33V
V OUT 1 B
V IN 1
MODE 1
BLK 1
BLUE 1
GREEN 1
RED 1
V OUT 1 B
Q2005
BUFFER
Q2004
AMP
BLUE 1
MODE 1
GREEN 1
RED 1
BLK 1
V IN 1
SC1 IN L
SC1 IN R
SC1 OUT L
SC1 OUT R
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SW1201 ANALOG IF BLOCK
FILTER
SURFACE WAVE
D1200 L1 01
IC1200
L2 02
IF-PLL
DEMODULATOR
Q1201
22 OP/2 Q1203
SWITCH
SW1200 VIDEO 17
AMPLIFIER
SAW FILTER
Q1202
SIF
1 4 24 Q1204 Q1205
SWITCH
OP/1 3
BUFFER AMPLIFIER
5 23 SIF
10 6 1 VIF
C1226
L1201
7 2 VIF
TUNED
VCD 15
CIRCUIT
X1200
14 TU AGC
SDA 5V
10 SDA
SCL 5V QSS 12
Q1200
SCL
11
SWITCH
CVBS ANALOG RF
VIDEO SCART 2
AV SCART 1
TUNER, I/O
CONNECTIONS &
A/V SWITCHING
- 18 -
AUDIO SWITCH IC2000
4 CHANNEL
ANALOG
MULTIPLEXER/
DEMULTIPLEXER
PC-R J2023
8.5V 16 VDD X3 11
PC
PC-L
Y3 4
CONNECTION
AUX-MUX-CTRL-B Q2000
9 B
SWITCH
J2022
DV1 L
Y2 2
AUX-MUX-CTRL-A
Q2001
A L DVI
10
SWITCH
DV1 R CONNECTOR
X2 15
AUX-MUX-OUT-R R
13 X
AUX-MUX-OUT-L J2024
3 Y
L-YUV L-YUV
SC2-IN-L 5
Y0 Y1
1
SC2-IN-R R-YUV R-YUV
12 X0 X1 14
U-YUV EXTERNAL
CONNECTOR
AV SCART 2
V-YUV
Y-YUV
CN2024
AUX-MUX-OUT-R 4
AUX-MUX-OUT-L 5
AUX-MUX-CTRL-B 6
AUX-MUX-CTRL-A 7
QSS 8
AGC DEFEAT 1
2
5V STBY
SC1 IN L L1 IN 16 TO BDTR-2 BOARD
CN3006
SC1 IN R R1 IN 17
SC1 OUT L L1 OUT 19
SC1 OUT R R1 OUT 20
SC2 OUT L L2 OUT 13
SC2 OUT R R2 OUT 14
LINEOUT R 10
LINEOUT L 11
J2021
OUT L
L
AUDIO OUT
OUT R
R
CN2023
SC2 OUT R RIGHT OUT 1
SC2 IN R RIGHT IN 2
SC2 OUT L LEFT OUT 3
SC2 IN L LEFT IN 6
V OUT 2 B VIDEO OUT 19
Q2003 Q2002
BUFFER AMPLIFIER
AV LINK 10
SCART 2
AV 2
BLUE 2 7
MODE 2 8
GREEN 2 11
RED 2 15
BLK 2 16
V IN 2 20