Sony KV-28FS20U, Руководство по обслуживанию

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32
31
5-1. BLOCK DIAGRAMS [2]
RV70
1
H STAT
C
N
701
R G IK
B
R G B
1 2 6
3
C
(RGB DRIVE)
TO D BOARD FV (T803)
+9
V
IC7
0
3
VIDEO OUT (GREEN)
1 5 9 3
VB IK VI VOF
VO
8
IC7
0
2
VIDEO OUT (BLUE)
1 5 9 3
VB IK VI VOF
VO
8
3
11
H2
12 10
RC
V
G2
1 5
H1
H2
7
8
H2 H1 G2
V90
1
PICTURE TUBE
TO D BOARD HV (T803)
HV
TO D BOARD
C
N
804
G4
IC7
0
1
VIDEO OUT (RED) 1 5 9 3
VB IK VI VOF
VO
8
FV
J7
01
T
U
101
SCL
C
N
201
SIF BUFF Q120,1
2
2
A
SIGNAL PROCESSING
SDA AFC MON 1
CVBS
QSS
AM AF
CVBS OUT
CVBS IN
MO
D
E
B2
0
B1
9
A2
0
A1
5
B8 A8
A1
9
CVBS/Y IN
SVHS-C IN
MO
D
E
CVBS OUT
BLANKIN
G
RED IN
GREEN IN
BLUE IN
B1
1
B7
B1
6
B1
5
VIDEO BUF
Q110-1
1
2
VIDEO BUFF
Q2
02
23 28 33 34 30
60
HPL
47 48
IC2
0
2
AUDIO PROCESSOR
25
8 9
36 37 50 51 31
61
SIF BUFF
Q121,12
4,130
CF12
0
AUDIO R IN
AUDIO L IN
B2 B6
AUDIO R IN
AUDIO L IN
A2 A6
AUDIO L OUT
AUDIO R OUT
B3 B1
AUDIO L OUT
AUDIO R OUT
A3 A1
59
3
1
HP
R
V3,Y3,C
3
SCL,SDL
AGC MONT
5
11
12
14
16
IC3
0
2
BASE BAND DELAY-LINE
23 27 29
TV IN
IC2
0
1
AV SWITCHING
25 21 20
3 4 6
31
5 7 1
15
10
22 26
IC3
0
1
Y/C JUNGLE
51 50
SCL SDA
AG
C
+33v +5v
RF IN
V3 Y3 C3
L R
+5
V
IC2
0
5
RESET
R OUT AV-1 L IN AV-3 R IN AV-3 L IN AV-2 R IN AV-2 L IN AV-1 L OUT AV-1 R IN AV-1 MONO IN (AM) ANA-(IN2
)
SCL SDA Z
RESET
L OUT AV-2 R OUT AV-2
L OUT HP R OUT HP
SSCP
R-Y OUT
B-Y OUT
B-Y IN
B-Y IN
4
3
7 8 12 13
14
VIDEO BUFF
Q2
01
CV BS
13
53
C IN AV-3 CUBS IN AV-1 CUBS IN AV-2 Y IN AV-2 C IN AV-2 MO
D
E
MO
D
E
CVBS IN AV-3 Y IN AV-3
CVBS OUT
AV-2
CVBS OUT
SDA SCL SSCP OUT R-Y OUT B-Y OUT B-Y IN R-Y IN CVBS IN R-1 IN G-1 IN B-1 IN
SYNC IN TV SDA SCL
FB-1 R1 G1 B1
BUFFE
R
Q3
32
VM AMP
Q3
31
SWITC
H
Q3
06
67 66
48 55 79
IC1 TXT MICRO-CONTROLLER
63 16
6
LEVEL SHIFT
Q3
05
8
LEVEL SHIFT
Q4
,5
54
IC4 RESET
1
3
STDY 5V
+5
V
OU
T
61
IC100
1
COMPACT TEXT
66 67 68 64
5 4
10 17
BUFF
Q1,10
0
2
SWITC
H
Q100
1
77 76 75
58
78
2 3 7
65 61 64 62 80
9
11
24 27
48
47 46
PROTE
C
T
Q
330
AMP
Q80,8
1
V SYNC
AFC
H SYNC
62 63
3
48
4
5
46
6 7 8
45
C
N
301
CN
1
ROTATION COIL V+ DRIVE EHT H FLYBACK H DRIVE V-DRIVE EAST WEST DRIVE 16:9 V SYNC CHASSIS STANDBY DGC RELAY SIRCS
VM
AUDIO MUTE FRONT KEY 1 STANDBY LED LUMISPONDE
R
1 2
3 6
21 22 23 28 24 25 26
6 5
32 33 31 37 38
39 28 49
SVHS-
Y
SVHS-
C
11
9
55 57
SVHS-
C
SVHS-
Y
SVHS-Y IN SVHS-C IN
11
17 18 19 15 16
FB-1 IN R-2 IN G-2 IN B-2 IN FB-2 IN HB-2 IN
SWITC
H
Q
300
49
R3,L
3
43
9
12 13 15
39 38 16
35 32 31
42
R2 G2 B2
20
ABL PROTECTION AFC AUDIO OUT SPEAKER AUDIO R OUT SPEAKER
AUDIO L OUT HP AUDIO R OUT HP AUDIO R IN AV-3 AUDIO L IN AV-3 CVBS IN AV-3 S-VHS C IN AV-3 S-VHS Y IN AV-3
BLUE
RE
D
GREE
N
CVBS IN ENABLE USAR
T
USAR
T
BLANKIN
G
HS VS RESET
RST 2 RST
RGB-
S
HS SSCP
VS VS
TXD
RX
D
ENABLE
BLANKIN
G
CO
R
V-BLK AG
C
MON 1 SDA
COIL
TRAP
4:
3
14:
9
DG
C
IR
MUTE
K1
LED
LS
STBY L2 FIL
AFC PIN
ABL IN
VM
H OUT
V-DRIV
E
E-W
V+ DRIVE
SYNC OUT
HS IN
VS IN
Y OUT
Y IN
R OUT G OUT B OUT
1K IN
TO D BOARD
C
N
902
V+
R G
B
CUT 0FF
16.9
EW
V-
H OUT
HFBP
EHT
V SYNC
ABL
PROT
AFC
SPL
SPR DG
C
IR
STBY
LS
LE
D
K1
MUTE
VM
HP
R
HP
L
R3
L3
V3
Y3
C3
R1 G1 B1
FB1
R2 G1 B1
FB2 FB3
FB2
CO
R
CN703
59
SCL
37
A0
35
A1
34
A2
32
A3
31
A4
29
A5
27
A6
25
A7
26
A8
28
A9
33
A1
0
30
A1
1
13
A1
2
24
A1
3
22
A1
4
21
A1
5
36
D7
38
D6
40
D5
42
D4
44
D3
43
D2
41
D1
39
D0
19
A1
6
18
A1
7
IC2 NVM
6
SCL
OU
T
5
SDA
7
57 56
SDA1 SCL1
4
12
A0
11
A1
10
A2
9
A3
8
A4
7
A5
6
A6
5
A7
27
A8
26
A9
23
A1
0
25
A1
1
4
A1
2
28
A1
3
29
A1
4
3
A1
5
2
A1
6
30
A1
7
13
D0
14
D1
15
D2
17
D3
18
D4
19
D5
20
D6
21
D7
IC3
SOFTWAR
E
17
CVBS OUT
( )
1 4
TO D1 BOARD
CN38
0
1
2 3
CN
4
4:3 14:9
TO VM BOARD
CN15
0
2
HFBP ABL
CN708
1 6 5
C
N
303
9
SCL
8
SDA
7
I2S CLK
6
I2S NS
5
I2S DA OUT
4
I2S DA IN
D-CTR
I
56
L OUT
57
R OUT
14
6 4 8 5 7 1 3 2 6 7
HRE
Q
RST SCL SDA
I2S CLK
I2S WS
I2S DA OUT
I2S DA IN
SP R
SPL
C
N
202
TO A1 BOARD
CN12
0
2
C
N
203
TO A1 BOARD
CN12
0
3