Block Diagrams (1) - Sony KV-28DS20U Service Manual

BLOCK DIAGRAMS 1
A
[ SIGNAL PROCESSING ]
A
( )
SIGNAL PROCESSING
TU101
SCL
SCL SCL,SDL
SDA
SDA
AFC
MON 1
AGC AGC MONT
IC201
RF IN
VIDEO SWITCH
+33v
20 SCL
+5v
21 SDA
CVBS 25 TV IN
QSS
AM AF
23 SYNC IN TV
CN201 VIDEO BUFF
CVBS OUT 13 CV BS
Q201
B19
VIDEO BUF SVHS-Y
CVBS OUT 17 CVBS OUT SVHS-Y 11
Q110-112
B20 CUBS IN SVHS-C 9 SVHS-C
CVBS IN 27 AV-1
A20 CUBS IN
CVBS/Y IN 29
AV-2
1 Y IN AV-2
A15
SVHS-C IN 3 C IN AV-2
B8
MODE 4 MODE
A8
CVBS OUT VIDEO BUFF
MODE 6 MODE 15
AV-2 Q202
V3
31
CVBS IN AV-3
Y3
5 Y IN AV-3
C3
7
C IN AV-3
V3,Y3,C3
A19
CVBS OUT
B16 FB-1
BLANKING
B15 R1
RED IN IC202
B11 G1 DIGITAL SIGNAL PROCESSOR
GREEN IN
B7 B1
BLUE IN
9 SCL
L OUT HP 59 HPL
8 SDA
60 HPR
SIF BUFF R OUT HP
25 Z
Q120,122
SCL 9
A0 12
SDA 8
13 D0 A1 11
I2S CLK 7
14 D1 A2 10
SIF BUFF
CF120 23 ANA-(IN2)
Q121,124,130 I2S NS 6
15 D2 A3 9
I2S DA OUT 5
28 MONO IN (AM) 17 D3 A4 8
I2S DA IN 4
B2 18 D4 A5 7
AUDIO R IN 33 R IN AV-1
L OUT AV-2 47
B6 19 D5 A6 6
AUDIO L IN 34 L IN AV-1
A2 R OUT AV-2 48
20 D6 A7 5
AUDIO R IN 30 R IN AV-2
D-CTRI 14
A6 A8 27
AUDIO L IN L IN AV-2 21 D7
31
L OUT 56
A9 26
36 R IN AV-3
R OUT 57
37 L IN AV-3 A10 23
B3
A11 25
AUDIO L OUT 50 L OUT AV-1 61
RESET
B1
A12 4
AUDIO R OUT 51 R OUT AV-1
A13 28
A14 29
A3 L
AUDIO L OUT
A15 3
A1 R
AUDIO R OUT
A16 2
CN202
A17 30
8
HREQ
+5V IC205 IC3
7 3 1
RST RESET SOFTWARE
KV-28DX20U/32DX20UONLY
6
SCL
TO A1 BOARD 5
SDA
CN1202
4
I2S CLK
I2S WS 3
2
I2S DA OUT
1
I2S DA IN
CN203
6
SP R
TO A1 BOARD
CN1203 7
SPL
33
IC301
Y/C JUNGLE
IC302 IC303
BASE BAND DELAY-LINE SECAM DECODER
R OUT 22
50 SCL
G OUT 24
51 SDA
B OUT 26
5 11 12 14 16 11 12 20 19 1
27
1K IN
1 SECAM REF PROTECT
SYNC OUT 48
Q330
10 SSCP OUT
3 R-Y OUT HS IN 47
4 VS IN 46
B-Y OUT
8 B-Y IN Y OUT 5
7
R-Y IN SWITCH
Y IN 6
Q300
53 CVBS IN
V+ DRIVE 32
55 SVHS-Y IN
57 SVHS-C IN E-W 33
R1
12 V-DRIVE 31
R-1 IN
G1
13 G-1 IN H OUT 37
B1
38
14 B-1 IN AFC PIN
FB1 BUFFER
11 FB-1 IN
L2 FIL 39 Q332
R2
17 R-2 IN
G1
18 G-2 IN ABL IN 28
B1
19 B-2 IN
VM AMP
FB2 VM 49
15 FB-2 IN Q331
FB3
16 HB-2 IN
FB2 SWITCH
Q306
IC1 TXT MICRO-CONTROLLER
AMP
59 SCL COIL 11
Q80,81
58
SDA TRAP 9
37 A0
4:3 3
35 A1
2
14:9
34 A2
DGC 78
32 A3
IR 80
31 A4
STBY
29 A5 62
LS 64
27 A6
25 A7 LED 61
26 A8 K1 65
28 A9 MUTE 7
33 A10
30 A11 BUFF
10 CVBS IN
A12 Q1,1002
13 RED
24 A13
TXD 75 66 USART GREEN
22 A14
21 A15 BLUE
RXD 76 67 USART
19 A16
77 68
18 A17 ENABLE ENABLE
LEVEL SHIFT 48 64
8 V-BLK BLANKING BLANKING
Q305
67 AGC 5
49 HS
MON 1 COR
COR
IC4 RESET 66 4 VS
STDY 5V 3 +5V OUT 1 16 RST 2
4
SWITCH
17 RESET
Q1001
63 RST SDA1 56
IC1001
39 D0 SCL1 57
MEGA TEXT
IC2 NVM 41 D1 HS SSCP 54 H SYNC
6 SCL
43 D2
OUT 7 VS 55
LEVEL SHIFT 44 D3
5 SDA VS 79 V SYNC
Q4,5 42 D4
RGB-S 6 AFC
40 D5
38 D6
36 D7
R3,L3
34
C
[ R,G,B DRIVE ]
CN303
TO D BOARD
C IC701 FV
2 FV (T803)
+9V VIDEO OUT (RED)
HFBP TO VM BOARD
(RGB DRIVE)
3 CN701
ABL CN1502 1 VB J701
1 R
3 3
G4
VI
CN301
R 12
9 VOF VO 8
H2
G 11
IK
5
1
R
B 10
G IC703
2
VIDEO OUT (GREEN)
B RV701
3 RCV 1
1 VB
H STAT
2 G
CUT 0FF 6
3 G2 5
VI
CN4
9 VOF VO 8
H1 7
1
4:3 6 IK
TO D1 BOARD IK
5 8
4 H2
14:9 CN3801
IC702
CN1 VIDEO OUT (BLUE)
CN703
3
1 VB
ROTATION COIL 3 B H2 6
3
V+ 48 VI
V+ DRIVE H1
5
4
16.9
16:9
EW 9 VOF VO 8
5 CN708
EAST WEST DRIVE
V- 46 5 IK G2 1
V-DRIVE
H OUT 6
H DRIVE
HFBP 7
H FLYBACK
8
EHT
EHT
45
V SYNC
V SYNC
ABL
43
ABL
TO D BOARD
CN902
9
PROT
PROTECTION A1
AFC
12
AFC
[ DIGITAL AUDIO PROCESS & RAM SURROUND PROCESS]
SPL 13
AUDIO OUT SPEAKER
SPR
15
AUDIO R OUT SPEAKER
DGC 42 IC1201
DGC RELAY
DIGITAL AUDIO
IR 39 IC1203
SIRCS
STBY 38 PROCESS CALIBRATOR
CHASSIS STANDBY
LS 16 S-DA1
LUMISPONDER CN1202 SD01
46 3 DATA
LED 35
STANDBY LED I2S-DA IN S-DA2
K1 32 2 S-WS2
57 S-DA2
FRONT KEY 1 WST 50 2 WS
MUTE 31
AUDIO MUTE I2S-WS 3 S-WS1
S-WS1
55
SCKT 49 1 BCK
R2 125-CLK S-CLK
4
61 51 S-CLK1
G2
TO A BOARD RST RST
62 7 S-DA0
36 RESET
B2 CN202 SD00 47 3 DATA
63
HREQ HREQ
20 8
VM 43 HREQ A0 25
VM 2 WS
HPR 21 SCL D1201 A1 24
6
AUDIO R OUT HP 26 SCL
A2 23 1 BCK
HPL 22
AUDIO L OUT HP SDA SWITCH A3 22
5
R3 23 35 SDA IC1204
Q1201 A4 20
AUDIO R IN AV-3 CALIBRATOR
L3 28 A5 19
AUDIO L IN AV-3
A6 18
V3 24 71 D0
CVBS IN AV-3 A7 16
C3 25 69 D1
A8 14
S-VHS C IN AV-3
68 D2
Y3 26 A9 13
S-VHS Y IN AV-3 67 D3
A10 12
10 9 8
65 D4
A11 11
64 D5
A12 7
63 D6 A13 5
62 D7 A14 4
IC1207
REGULATOR
+9V 1 2 +5V A1 (
3
H
[ AV INPUT, STBY POWER SUPPLY ]
S5601
POWER
CN5601
T5602
F5601
2 AC IN
TO D BOARD
RECT
3 5
CN602 6 AC IN D5642
4 7
CN5901
IC5605
5 4
V901 STANDBY
PICTURE TUBE 1 FUNCTION
SWITCH
S5900 - S5902
4
3
TO D BOARD
HV
CN901 3 RESP IC5900
RECEIVER
TO D BOARD
6 STBY +5V
HV (T803) 2
TO D BOARD D5901
CN804
H
CN5903
J5900
11 H.P.L.
13 H.P.R.
3
TO D BOARD
CN903 1 CN5900
S
9 C IN
4 2
8 Y IN 3 1
VIDEO
CN5916
1 LEFT AV IN L
OPEN
3 RIGHT AV IN R
IC1205
OP. AMP
CN1204
3 CENTRE
LOUT 6 6 LIN OUT2 7
TO A2 BOARD
1 SURROUND
CN4204
ROUT 8 2 RIN OUT1 1
CN1203
7 SPLOUT
LOUT 6 6 LIN OUT2 7
TO A BOARD
SPROUT
6 CN203
8 2 1
ROUT RIN OUT1
IC1206
OP. AMP
7 6 5 4 3 25 24 21 23 2 26 1
11 12 13 15 16 17 18 19
IC1202
RAM
)
DIGITAL AUDIO PROCESS
RAM SURROUND PROCESS
35
J
[ DOLBY SPEAKER TERMINAL ]
SPK R OUT
SPK L OUT
J3201 S3201
D5604 +5V
+5V RECT STDBY
SPK R IN
1 IC5904 2
+
R
-
SPK L IN
+
L
- SUB WOOFER MUTE
4 1
+
3 2
C
-
C
+ SPS
S
-
( AV INPUT, SIRCS, FRONT AV, )
STBY POWER SUPPLY
+
S
-
(
J
DOLBY SPEAKER
TERMINAL
36
CN3202
1
TO
3 SPEAKERS
CN3203
1
TO D BOARD
CN1408
3
CN3201
1
TO A2 BOARD
CN4001
2
12
)