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TRINITRON KV-25FS12
Service manual
Sony TRINITRON KV-25FS12 Service Manual page 21
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BLOCK DIAGRAM (2 OF 2)
CN1000
3P
SCL
1
A
GND
2
SDA
3
SPSW
1
VM
2
STBY 7.5V
3
GND
4
I-PROT
5
DGC
6
RELAY
7
HP
8
MUTE
9
SEL-1
10
B
CN1004
SEL-0
11
GND
12
O-MON0
13
O-SAP
14
I-SAP
15
I-STEREN
16
MAIN 1
17
MAIN 2
18
AFT
19
AGC MUTE
20
I-HLDWN
1
HD
2
GND
3
ABL
4
EW
5
VD+
6
VD-
7
MONITOR
8
V3
9
C
O-VOL
10
CN1003
PIP-L
11
SDAT
12
SCL
13
SET5V
14
30V
15
SET9V
16
V1
17
GND
18
Y1
19
C1
20
LED
1
POWER-SW
2
IR(SENSOR)
3
MENU-SW
4
CN1001
KEY-SW
5
STBY +5V
6
V2(VIDEO2)
7
GND
8
D
CN1002
FOR JIG
STBY +5V
VIDEO SW
REG
IC1304
3
VIDEO1
IC1305
RESET
MEMORY
5
6
IC1003
1
2
4
7
5
2
BUFFER
Q1001
BUFFER
Q1010
38
36
47
11
O-SEL1
10
O-SEL0
STBY 7.5V
15
O-HSYSW
17
16
I-PROT
I-HSYNC
13
O-DGC
24
X1001
8
I-DSC
O-RELAY
25
O-OSC
5
O-MUTE
1
HP
I-HP
Q1325,1326
30
46
I-RESET
O-MONO
42
O-SAP
37
I-SDAT
43
I-SAP
45
I-STEREN
39
O-SCLN
41
O-YM
49
33
O-OSDBLCK
I-AFT
48
52
O-AGCMUTE
O-R
51
O-G
50
O-B
2
I-VPN
44
O-YUYSW
BUFFER
35
I-HLDWN
Q1003
CONTROL
TUNING SYSTEM
IC1001
SET5V
30V
SET9V
22
I-CVIN
18
O-LED
14
I-POWER
12
I-RMCN
34
I-MENU
32
I-KEY
STBY +5V
4
O-N/S
6
O-H TRAP
V DY(+)
V DY(-)
H DY(-)
H DY(+)
HSYNCH SW
DIG COMB
IC1002
FILTER
IC1302
(TUNING CONTROL)
(Y/C/J)
2
7
3
1
4 10
9
13
20
17
HSYNCH
SEP
Q1009
41
CVBS2
VM OUT
15
VM
Q1330
18
HP PROTECT
35
SDA
34
SCL
YS2/YM
32
R2IN
31
G2IN
30
B2IN
5
VTIM
36
YUYSW
19
HD
42
ABLIN
11
EW
13
VD+
Y/C JUNGLE
IC1301
BUFFER
43
V/FSC
Q1302
4
Y1
2
C1
BUFFER
IK BUFFER
21
IKIN
6
Q1310,1311
MONOUT
Q1331,1350
Q1312
BUFFER
BUFFER
7
COMB C
AFCFI
20
Q1313
BUFFER
Q1336
Q1354,1306
Q1307,1308
BUFFER
22
9
ROUT
R,G,B OUT
COMB Y
Q1332,1327
23
GOUT
Q1317,1316
X1304
24
Q1328,1329
BOUT
Q1315
46
XTAL3
CONVERGENCE
Q1301
47
XTAL2
H TRAP
Q1011,1002
14
VD-
— 23 —
(RGB DRIVE)
(CRT DRIVE)
N/S MUTE
Q700
CN701
2
NS IN
1
N/S MUTE
N/S DRIVE
Q701
IC1701
4
CN1303
CN705
5
1
IK
IK
1
IK
CRT DRIVE
GND
GND
2
2
KR 12
3
IC702
7
R
R
R IN
3
3
R OUT
2
8
KB 10
B
B
4
4
B IN
B OUT
1
9
KG 11
G
G
5
5
G IN
G OUT
6
GND
GND
6
7
N/S
N/S
7
8
NS MUTE
NS MUTE
8
H TRAP
H TRAP
9
9
BA5-902-BD
KV-25FS12 / 25FS12C
N/S COIL -
1
N/S COIL +
3
PICTURE TUBE
H
FV
G2
FOCUS
HV
CN704
1
G2
6
HEATER
CN706
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