30
29
D6
1
8
PROTEC
T
3
5
6
7
48
46
45
43
42
9
12
26
25
24
28
23
39
13
38
15
35
20
31
21
22
TO C BOARD
C
N
703
ROT COIL
V- OUT
E/W
V- OUT
H DRIVE
V SYNC
HFBP
EHT
ABL
DGC RELAY
PRO
T
AFC
SIRC
S
SPKRL
STBY
SMART SW
STBY LED
VM OUT
MUTE
H/P L
H/P R
R IN
L IN
V IN
C IN
Y IN
TO A (2/2)
BOAR
D
CN
1
5
-
+
7
IC8
0
0
PIN CORRECTION
5
PIN OUT
Q800, 801
SWITC
H
Q
503
SWITC
H
Q
501
SWITC
H
Q
502
IC5
0
0
V OUT
1
3
5
6
7
+
D8
0
3
V BOOST
+15
V
V + I/P
F B-PLS
V OUT
Vc
c OUT
V - I/P
T80
0
PMT
L
804
HLC
D8
0
7
L
802
+135
V
D8
1
5
H CENT
D8
0
8
H CENT
5
3
6
4
1
2
1
4
2
8
D8
1
0
200V RECT
9
7
135
V
+15
V
-15
V
HV
13
11
FV
12
200
V
+B
C
N
802
FV TO C BOARD
J701 (G4)
HV TO
PICTURE TUBE
200
V
H2
C
N
800
V+
V-
H-
H+
H OUT
Q
802
H DRIVE
Q
803
SWITC
H
Q
805
D8
0
0
H DUMPER
D8
0
1
H DUMPER
+9
V
4
1
3
3
1
5
4
3
2
1
RELAY DRIVE
Q
611
D6
1
9
PROJE
C
T
RY60
0
+15
V
R
L
R
L
MUT
E
Q
1
204
1
IC120
1
HEADPHONE AMP
7
3
6
MUT
E
Q
1
203
MUTE SWITCH
Q
1
202
+5
V
5
3
CN14
0
8
L OUT
R OUT
J
1
200
L
R
4
CN14
0
1
TO VM BOARD
CN17
1
6
MUTE SWITCH
Q
1
200
VM OUT
SPR
MUTE
MUTE SW
CN14
0
3
TO D1 BOARD
CN22
0
2
MAIN RECT
D60
0
D6
0
6
D6
0
1
D6
0
5
4
8
6
14
3
D6
0
3
REF
D6
0
4
SOFT START
Q
601
4
32
1
IC6
0
1
OPTO-COUPL
E
R
T60
1
SRT
2
RE
G
2
1
IC6
0
2
ERR-AM
P
POWER OFF SWITCH
Q605, 606, D617, 625
+135
V
+33
V
20
21
19
16
17
18
-21
V
D6
1
3
+21V RECT
D6
1
4
-21V RECT
+21
V
3
1
15
D6
0
9
135V RECT
+15
V
1
3
IC6
0
6
9V
STDBY 5V
IC6
0
3
D6
1
2
15V RECT
D6
1
1
5V RECT
7.5
V
DG
C
C
N
601
THP60
0
AC IN
AC IN
IC6
0
0
POWER CONTROL
8
4
3
9
IN
H
F/B
Vc
c
B
7
6
1
5
OC
P
C
D IN
D OUT
+
D6
0
7
5V REG
9V REG
C
N
902
D5
0
5
D5
0
4
D5
0
7
T803 FBT
L
801
T80
4
HD
T
D5
0
2
-15V RECT
D5
0
3
+15V RECT
4
IC120
0
AUDIO AMP
7
2
5
11
L IN
L OUT
R
I
N
R
OUT
C
N
602
D
(
)
DEFLECTION AND
POWER SUPPLY
TO H BOARD
CN56
0
1
RY60
1
RELAY DRIVE
Q
607
13
D6
0
8
2
2
1
4
3
12
5
7
1
3
4
6
8
13
11
9
8
3
1
C
N
805
C
N
903
R AV IN
L AV IN
MPEG/AV3
L
MPEG/AV
3
MPEG/AV3
R
TO H BOARD
CN59
0
3
HP L
HP R
Y IN
C IN
MPEG/AV3
R
MPEG/AV3
L
C
N
904
SMART CORR
H-
SMART SW
TO D2 BOARD
CN88
0
1
16
SPKR
R
DF TO D1 BOARD
CN 2806
6
2
C
N
804
5
6
R8
2
5
3
1
3
4
5
CN18
0
3
ROT COIL
V-DRIV
E
V+ SAW
KEY
RESPL
C
N
901
TO H BOARD
CN59
0
1
TO VM BOARD
CN18
0
1
STBY +5V
MUTE SWITCH
Q
1
201
SPL
TO D1 BOARD
CN38
0
3
S80
1
+135
V
4
3
MUTE
MUTE SW
TO A2 BOARD
CN44
0
7
CN14
0
7
TO D1 BOARD CN2804
3
C
N
801
TO J2 BOARD
CN62
0
2
5-1. BLOCK DIAGRAMS [1]
Содержание KV-28FS20U
Страница 37: ...48 47 7 3 Vp p H WAVEFORMS VM BOARD 1 VM VELOCITY MODULATION AND DYNAMIC CONVERGENCE VM PRINTED WIRING BOARD ...
Страница 38: ...50 49 J2 INTERNAL SPEAKER MUTE SWITCH J2 PRINTED WIRING BOARD D2 PRINTED WIRING BOARD D2 SMART MODE DEFLECTION ...
Страница 43: ...64 63 H AV INPUT SIRCS FRONT AND STBY POWER SUPPLY PRINTED WIRING BOARD Page 65 ...
Страница 44: ...66 65 H PRINTED WIRING BOARD ...
Страница 73: ...95 ...