Sony KV-20FS100 Service Manual ▷ View online
— 42 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
3
2
CV BOARD WAVEFORMS
1
1.3V p-p (H)
1.2V p-p (H)
1.0V p-p (H)
145.3V p-p (H)
4
117.0V p-p (H)
5
120.3V p-p (H)
6
1
|
2 |
3
|
4
|
5
|
A
—
B
—
C
—
D
—
E
CV
[RGB DRIVE, CRT DRIVE, VELOCITY MODULATION]
R910
R909
Q902
RV1701
RV1750
IC1707
IC1751
CN1753
CN1755
CN1751
R1761
R1762
C1774
C1778
C911
C1775
C912
C1755
C901
C903
C908
C904
C906
C910
C909
D1754
D1755
D1756
D1758
D901
D902
R1788
R906
R923
R1758
R1757
R1756
R1770
R1760
R902
R901
R903
R905
L901
R1767
Q771
Q1771
Q903
Q906
Q905
C N 9 0 3
C N 1 7 5 2
Q791
CN1707
R 9 2 2
Q761
R793
B
E
1
3
12
9
8
1 1
6
7
1 0
13
5
4
G1
G 1
G1
K R
KB
H 2
G2
H1
K G
GR OUN D
GA P
SPA RK
1
6
1
3
J L 1
1
9
BA6
1-684-448-11
172109311
H E A T E R
T P 7 0 1
JL700
N/S
N/S +
N/S -
&9%2$5',&
92/7$*(7$%/(
3,1
92/7
*1'
3,1
92/7
*1'
,&
,&
&9%2$5'75$16,67257$%/(
%
&
(
%
&
(
4
4
4
4
4
4
4
4
4
4
4
4
*1'
4
4
4
4
— 43 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
[MAIN PWR BUTTON, SIRCS, LEDS]
HR
HR BOARD SCHEMATIC DIAGRAM
1
|
2 |
3
|
4
|
A
—
B
—
C
—
D
1
2
3
4
5
6
G
N
D
V
C
C
O
U
T
IC3001
D3002
C3001
S3006
R3001
R3014
CN3001
SBX3071-71
DETECTOR
LNJ801LPDJA
TIMER LED
100
1k
100
6P L TYPE
:S-MICRO
SIRCS
STBY 5V
TIMER LED
POWER ON
MPWR LED
GND
TO A BOARD
CN002
BA6-922-HR
R
3
0
0
2
R
3
0
1
4
R
3
0
0
1
C
3
0
0
1
D
3
0
0
1
S
3
0
0
6
I
C
3
0
0
1
G
O
1
|
2 |
3
A
—
B
—
C
— 44 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
M3 BOARD SCHEMATIC DIAGRAM
1
2
3
4
5
6
1
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
C11
R12
C13
R51
R52
C70
R70
R71
R72
C71
R77
R78
C80
R50
R53
D50
C50
R55
R56
R58
R59
R54
R57
R11
C10
R10
R13
R79
R75
R76
R74
L50
CN10
CN11
Q50
Q52
Q51
IC2
IC1
IC3
C12
C14
C51
0.01
:CHIP
1k
0.01
:CHIP
10k
:CHIP
10k
:CHIP
47
10k
10k
2.2k
0.01
:CHIP
100k
22k
47
4.7k
:CHIP
4.7k
:CHIP
MA111
0.47
4.7k
:CHIP
1.5k
:CHIP
15k
:CHIP
4.7k
:CHIP
4.7k
:CHIP
0
:CHIP
4.7k
47
4.7k
4.7k
4.7k
6P
1P
2SD601A
AMP
2SD601A
AMP
2SD601A
AMP
NJM2903M
COMPARITOR
NJM2903M
COMPARITOR
NJM2904M
AMP
0.001
0.001
470
9V
9V
*
*
*
HDRV IN
ABL
9V
HDRV OUT
GND
3.3V
-13V
HDR IN/OUT
TO A BOARD
MOUNTED
TO A BOARD
CN302
BA6-922-M3
KV-24FV300
ALL EXCEPT
KV-24FV300
R74
R75
R76
LOCATION
47K
100K
#
100K
#
47K
E-5
E-5
D-5
REF #
KV-25FV300
KV-25FV300
1
|
2 |
3
|
4
|
5
|
6
|
7
|
8
A
—
B
—
C
—
D
—
E
KV-21FS100/21FM100/21FV300/20FV300/
20FS100/24FV300/25FV300
— 45 —
[HDR IN/OUT CONDUCTOR SIDE]
M3
[HDR IN/OUT COMPONENT SIDE]
M3
R73
R75
C1
3
R1
2
C11
C
71
R72
C73
R7
0
R
71
R74
C72
R76
C7
4
C10
IC3
C80
IC1
C
N1
0
CN11
R11
R10
C1
2
C14
R13
R79
R7
8
C70
C51
C50
ID2
R55
R59
R77
D50
L5
0
9V
HD
RV
I
N
ABL
HDRV
OUT
3
.3
V
G
ND
1-
68
5-
1
20
-
13
1
72
1
34
51
3
1
A
B
C
D
E
2
3
R50
C10
Q52
Q51
IC2
Q50
R54
R56
R57
C70
C51
C50
ID1
R58
1
6
CN11
1-685-120-13
1
A
B
C
D
E
2
3
Click on the first or last page to see other KV-20FS100 service manuals if exist.