Sony KV-28FQ70B Service Manual ▷ View online
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- 41 -
~ G Board Schematic Diagram [ Power Supply ] ~
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- 42 -
~ C Board Schematic Diagram [ R-G-B Out ] ~
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IC7300
TDA6111Q/N4
VBvb
12v
viVI
GND
IK
200V
VF
VO
VO
F
1
2
3
4
5
6
7
8
9
IC7325
TDA6111Q/N4
VB
12V
VI
GND
IK
200V
VF
VO
VO
F
1
2
3
4
5
6
7
8
9
IC7350
TDA6111Q/N4
VB
12V
VI
GND
IK
200V
VF
VO
VO
F
DTA144EK
Q7350
1SS133T-77
D7375
1SS133T-77
D7376
D7378
RD5.6ESB2
D7379
RD5.6ESB2
D7353
XX
D7302
XX
D7327
XX
1SS119-25T
D7325
1SS119-25T
D7350
1SS119-25T
D7300
1
CN7311
TAB (CONTACT)
1
CN7333
TAB (CONTACT)
1UH
L7375
XX
L7325
XX
L7300
XX
L7350
R7389
1/4W
120K
1/0W
33k
R7375
1/0W
12k
R7377
1/0W
10k
R7376
1/4W
1k
R7325
1/4W
1k
R7350
1/4W
1k
R7300
110M
RV7375
R7303
1/10W
CHIP
1.8k
1/10W
1.8k
R7328
CHIP
1/10W
1.8k
R7356
CHIP
1/10W
1.8k
R7335
CHIP
1/10W
1.8k
R7309
CHIP
1/10W
1.8k
R7364
CHIP
R7383
1
1W
RS
R7384
XX
680
R7334
680
R7363
R7310
1/10W
CHIP
680
1/2W
470
R7304
RC
1/2W
470
R7357
1/2W
470
R7329
1/2W
100
R7385
RC
1/2W
100
R7382
RC
50V
47p
C7360
50V
47p
C7334
CH
50V
47p
C7310
XX
C7307
XX
C7357
XX
C7332
4PF
C7331
4PF
C7308
50V
CH
50V
4PF
C7351
CH
50V
4PF
C7325
CH
50V
4PF
C7303
CH
4PF
C7358
25V
0.1
C7359
50V
0.1
C7333
50V
0.1
C7309
25V
0.001
C7306
25V
0.001
C7352
25V
0.001
C7326
B
2kV
680p
C7378
B
2kV
C7379
E
0.0047
630V
0.047
C7356
630V
0.047
C7330
35V
47
C7354
XX
C7302
XX
C7328
1
C7329
400V
1
C7355
400V
1
C7304
63V
22
C7350
350V
22UF
C7380
XX
C7377
1
2
3
4
5
6
7
8
9
9P
BLK
CN7301
R-
R+
G-
G+
B-
B+
GND
+12V
IK
1/4W
1k
R7390
C7383
XX
CHIP
1.8k
R7391
680
R7392
6PF
C7384
C7385
8PF
50V
CH
1/10W
CHIP
1.5k
R7393
1/4W
1k
R7394
C7386
XX
1/10W
CHIP
1.8k
R7395
680
R7396
6PF
C7387
1/10W
CHIP
1.5k
R7397
C7388
8PF
50V
50V
CH
1/4W
1k
R7398
C7389
XX
1/10W
CHIP
1.8k
R7399
680
R7374
6PF
C7390
1/10W
CHIP
1.5k
R7373
C7391
8PF
50V
50V
CH
1uH
L7378
630V
0.047
C7305
PT
2W
RS
68k
R7358
2W
RS
68k
R7330
2W
RS
68k
R7305
DTA144EK
Q7354
1/10W
CHIP
10k
R7381
1/10W
CHIP
10k
R7380
1/10W
CHIP
10k
R7379
1
2
3
4
5
5P
CN7300
+200V
NC
GND
NC
HEATER
NC
GND
NC
HEATER
L7376
3
5
6
7
8
9
10
11
13
1
4
J7376
UN2213
Q7353
UN2213
Q7352
UN2213
Q7355
CV
KR
G1
G4
HV
H
KG KB
G2
1/2W
47
R7387
RC
R7388
20MM
R7306
5MM
R7331
5MM
R7360
5MM
R7302
5MM
R7327
5MM
R7355
5MM
RED-VIDEO-OUT RED.OUT
GREEN-VIDEO-OUT
BLUE-VIDEO-OUT
VB
12V
VI
E
IK
200V
VF
VO
VO
F
VO
F
VO
VF
IK
E
VI
200V
VB
12V
external
C
TO COATTING EARTH
FV FOCUS
TO FBT
TO A BOARD
CN7001
TO D BOARD
CN8614
C..-28FQ70
V901
PICTURE
TUBE
W66LLX060X
+12V
+200V
R,G,B OUT
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
+12V
+12V
TO D2 BOARD HV (T6800)
TO COATING EARTH
R
G
B
B
G
R
TP1
TP2
TP3
TP4
TP5
+200V
TP7
TP6
B
G
R
400V
JR7301
0
- 43 -
~ D2 Printed Wiring Board Conductor side ~
~ C Printed Wiring Board Conductor side ~
~ M2 Printed Wiring Board Conductor side A ~
~ M2 Printed Wiring Board Conductor side B ~
~ C Board IC Voltage Table ~
e
l
b
a
T
e
g
a
t
l
o
V
C
I
o
N
f
e
R
o
N
n
i
P
)
V
(
e
g
a
t
l
o
V
0
0
3
7
C
I
1
9
.
3
3
8
.
3
5
5
.
7
6
0
0
2
7
0
4
1
8
3
5
1
9
0
4
1
5
2
3
7
C
I
1
9
.
3
3
8
.
3
5
7
.
7
6
0
0
2
7
0
4
1
8
3
5
1
9
0
4
1
0
5
3
7
C
I
1
9
.
3
3
8
.
3
5
5
.
7
6
0
0
2
7
9
3
1
8
8
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1
9
8
3
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~ C Board Semiconductor Voltage Table ~
f
e
R
)
e
(
)
b
(
)
c
(
0
5
3
7
Q
2
1
8
9
.
1
1
0
2
5
3
7
Q
0
0
8
.
3
3
5
3
7
Q
0
0
8
.
3
4
5
3
7
Q
8
9
.
1
1
2
1
0
5
5
3
7
Q
0
0
8
.
3
~ C Board Waveforms ~
10us/div
10us/div
10us/div
10us/div
10us/div
10us/div
10us/div
2.16 Vp-p (H)
2.0 Vp-p (H)
1.9 Vp-p (H)
116 Vp-p (H)
100 Vp-p (H)
TP1
TP2
TP3
TP4
100 Vp-p (H)
6.8 Vp-p (H)
TP4
TP5
TP6
TP7
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B
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- 44 -
~ M2 Board Schematic Diagram [ Micro Processor ] ~
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