Sony KV-28HX15B Service Manual ▷ View online
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- 37 -
~ VM Board Schematic Diagram [ Velocity Modulation ] ~
~
VM Board Difference Table
~
25V
100
C1701
10uH
L1701
25V
100
C1704
9V
8
7
6
5
4
3
2
1
LM358N
IC1902
50V
3300p
C1953
1SS133
D1909
R1955
CHIP
220k
10
C1952
CHIP
330k
R1954
9V
CHIP
10k
R1957
*
R1960
XX
C1955
33k
R1961
CHIP
33k
R1962
25V
0.01
B
C1954
CHIP
270k
R1953
10
C1951
CHIP
100
R1964
2SC2412K-T-146-R
Q1906
CHIP
3.9k
R1959
CHIP
470
R1965
50V
10
C1957
R1966
XX
2SB734-34
Q1907
CHIP
100
R1958
C1958
C1959
L1959
400V
0.082
C1845
C1848
*
630V
0.015
C1844
EL1Z
D1840
S
IRF620
Q1841
1/10W
100
R1842
2SA1175-HFE
Q1840
CHIP
2.2k
R1846
10mH
L1843
8
7
6
5
4
3
2
1
LA6393DLL
IC1901
1SS133
D1902
CHIP
220
R1908
1
2
3
CN1702
GND
NC
+15V PULSE
2SC2412K-T-146-R
Q1901
*
R1901
XX
R1902
1SS133
D1901
R1926
CHIP
10k
R1903
9V
50V
100p
C1901
CHIP
10k
R1904
50V
0.047
C1902
CHIP
100k
R1907
CHIP
10k
R1906
CHIP
100k
R1905
RN-CP
10k
R1919
CHIP
0
R1920
25V
0.01
B
C1906 R1916
CHIP
56k
R1917
R1931
2.2k
R1914
CHIP
4.7k
R1915
C1916
2SC2412K-T-146-R
Q1902
CHIP
1k
R1913
50V
10
C1903
2200p
C1904
0.047
C1905
1SS133
D1903
1M
R1912
10k
R1911
1SS133
D1904
CHIP
0
R1910
RD15ESB2
D1905
2SC3840(3)
Q1903
ERA38-06TP1
D1906
ERA38-06TP1
D1907
1N4937RL
D1908
630V
0.022
C1915
CHIP
100k
R1923
CHIP
100k
R1924
CHIP
100k
R1925
L1901
C1914
C1913
R1921
*
C1917
C1912
XX
C1911
*
R1967
*
R1969
1/4W
680k
R1909
1
2
3
4
6
T1901
XX
C1907
1
CN1809
DF
8.2M
R1956
135V
135V
9V
*
FB1701
1uH
L1902
160V
0.47
C1908
R1968
VCC
GND
OUT
BA09T
IC1701
C1732
R1922
1
3
4
5
6
7
8
9
10
9P
CN1701
+135V
VM VCC
NC
GND
LOW B
NS CORRECT
VM OUT
V_PULSE
MAGENTA
1
2
3
WHT
3P
CN1901
CY-
NC
CY+
150uH
L1904
50V
MPS
0.22
C1918
JW1902
5MM
1
2
3
RED
3P
CN1902
LOW_B
GND
V_PULSE
1
2
3
4
5
6
7
8
9
10
11
12
*
CN1718
QP-
QP-
NC
NC
QP+
QP+
NC
NC
GND
GND
VM
VM
*
R1847
*
R1848
L1903
3W
RS
4.7k
R1918
VM
VM.-28/32HX15
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
VELOCITY MODULATION
50V
50V
DF/DQP
TIMING
0.22
0.22
10MH
*
*
*
TO NECK ASSY
+9V REG
*
*
*
0.0022
630V
(DFT)
*
10MH
*
*
*
COMPARATOR
*
*
TO A BOARD
CN503
TO A BOARD
CN510
TO C BOARD
CN1802
TO DY
f
e
R
5
1
X
H
8
2
-
V
K
5
1
X
H
2
3
-
V
K
2
3
7
1
C
0
P
I
H
C
T
R
O
H
S
V
5
2
%
0
1
F
U
1
0
.
0
8
4
8
1
C
V
0
3
6
%
5
F
U
1
0
.
0
V
0
3
6
%
5
F
U
7
4
0
0
.
0
2
1
9
1
C
D
E
T
T
I
F
T
O
N
V
0
0
5
%
0
1
F
P
0
0
1
4
1
9
1
C
V
0
0
5
%
0
1
F
P
0
3
3
V
0
0
5
%
0
1
F
P
0
2
2
6
1
9
1
C
V
6
1
%
0
1
F
U
1
V
0
5
%
0
1
F
P
0
7
4
7
1
9
1
C
V
0
0
5
%
0
1
F
P
0
7
4
V
0
0
5
%
0
1
F
P
0
3
3
2
0
7
1
N
C
D
E
T
T
I
F
T
O
N
P
3
8
1
7
1
N
C
P
2
1
P
8
1
0
7
1
B
F
D
E
T
T
I
F
T
O
N
R
E
P
M
U
J
,
D
A
E
L
M
M
5
3
0
9
1
L
H
U
0
2
1
H
U
7
4
7
4
8
1
R
W
3
%
5
0
0
1
W
3
%
5
6
5
8
4
8
1
R
W
3
%
5
0
0
1
W
3
%
5
6
5
1
0
9
1
R
D
E
T
T
I
F
T
O
N
W
0
1
/
1
%
5
K
7
4
6
1
9
1
R
W
0
1
/
1
%
5
.
0
K
7
.
4
W
0
1
/
1
%
5
.
0
K
9
.
3
1
2
9
1
R
W
3
%
5
K
8
.
6
W
3
%
5
K
7
.
4
2
2
9
1
R
W
3
%
5
K
2
.
2
W
3
%
5
K
5
.
1
6
2
9
1
R
0
P
I
H
C
T
R
O
H
S
D
E
T
T
I
F
T
O
N
1
3
9
1
R
W
0
1
/
1
%
5
.
0
K
7
2
W
0
1
/
1
%
5
.
0
K
8
1
0
6
9
1
R
W
0
1
/
1
%
5
K
0
1
W
0
1
/
1
%
5
.
0
K
8
.
6
7
6
9
1
R
W
2
%
5
K
1
W
2
%
5
0
2
8
8
6
9
1
R
1
2
-
4
6
5
-
3
4
2
-
1
W
2
%
5
0
0
1
1
1
-
6
8
8
-
5
1
2
-
1
W
2
%
5
0
0
1
9
6
9
1
R
W
2
%
5
K
1
W
2
%
5
0
2
8
- 3
8
-
LM358N
LM393DT
LM393PS
LM393DT
LM393PS
5-4. SEMICONDUCTORS
TDA9394H/N1/5/0716
M24C32-WMN6T(A)
MC14053 BDR2
MC14053 BDR2
PQ05RF11
PQ3RF33
PQ3RF33
8
7
6
5
1
3
4
( TOP VIEW )
2
( TOP VIEW )
( MARKING SIDE VIEW )
64
41
1
24
80
65
25
40
MSP3411G-PP-B8V3
1
32
33
64
STR-L474-LF429
MCZ3001D
18
9
1
10
IN
GND
OUT
BA09T
SE-012N-LF4
SE-012N-LF4
PCF8593/T118
TLP721(D4-GR.T)
CXA1875AM-T4
( TOP VIEW )
1
8
16
9
UPC2405AHF
BU2515DX-127
FMW-2109LF654
BU2515DX-127
FMW-2109LF654
TSOP1740KS1
TDA7495S
TDA6108JF/NIB
1
10
TOP209P
PC123F2
NJM4556AD
LM2940T-9.0
8 PIN SOP
1
TOP VIEW
LA6393DLL
L78L33ABZ-AP
2SC3840(3)
2SC3840(3)
SE135N-LF4
1
2
3
1 V
OUT
2 V
IN
3 GND
7
1
STV9379A
-
39
-
1SS119-25
1SS133T-77
ERA38-06
FUF4005
HZS9.1NB2
MTZJ-4.7C
MTZJ-T-77-9.1A
MTZJ-33A
MTZJ-7.5B
P6KE200ASY
RD3.6ES-B2
RD5.1ESB2
RD5.6ESB2
RD6.8ES-B2
RD10ESB2
1SS133T-77
ERA38-06
FUF4005
HZS9.1NB2
MTZJ-4.7C
MTZJ-T-77-9.1A
MTZJ-33A
MTZJ-7.5B
P6KE200ASY
RD3.6ES-B2
RD5.1ESB2
RD5.6ESB2
RD6.8ES-B2
RD10ESB2
CATHODE
ANODE
2SA1162-G
2SA1037AK-T146
2SC1623-L5L6
2SC2412K-T-146-R
2SD601A-Q-TX
DTC114EKA-T146
DTC143TKA-T146
DTC144EKA-T-146R
2SA1037AK-T146
2SC1623-L5L6
2SC2412K-T-146-R
2SD601A-Q-TX
DTC114EKA-T146
DTC143TKA-T146
DTC144EKA-T-146R
C
B
E
2SA1175-HFE
E
LETTER SIDE
C B
2SB734-34
1
2
3
2SC2785-HFE
KRA104M-AT
KRA104M-AT
B
C
E
2SK2036(TE85L)
MA3047M-TX
MA3047M-TX
2SK2518-01MR
2SK2640-01MR-F122
2SK2640-01MR-F122
E
B
C
BAS316-115
DTZ-TT11-6.8B
MM3Z12VT1
MM3Z4V7T1
MM3Z6V8T1
MM3Z9V1ST1
PDZ9.1B-115
PDZ22B-115
UDZSTE-175.6B
DTZ-TT11-6.8B
MM3Z12VT1
MM3Z4V7T1
MM3Z6V8T1
MM3Z9V1ST1
PDZ9.1B-115
PDZ22B-115
UDZSTE-175.6B
CATHODE
ANODE
AG01ZV0
D2S4MF
D2S4MF
D4SB60L
~
~
+
–
~
~
+
–
DAN202K
2
1
3
1
3
2
EGP20G
EL1Z
ERC06-15S
GP08D
RJ43-LF-T2
RK34-LF-T2
RU-3AM
RU-4AM-T3
SARS01V0
EL1Z
ERC06-15S
GP08D
RJ43-LF-T2
RK34-LF-T2
RU-3AM
RU-4AM-T3
SARS01V0
CATHODE
ANODE
FBIU4D7M1-B-4
G2SBA60L-5700
G2SBA60L-5700
IRF614-037
IRF620
YG802C09RF122
IRF620
YG802C09RF122
B
C
E
L-59SRSGC-CC
RK46LFT2
1 2
3
2
UGB8BT-31
GBU4JL-6088
- 40 -
1
5
MUTE/STBY
PROTECTIONS
14
9
10
12
4
3
2
VOLUME
VOLUME
OP AMP
OP AMP
30K
30K
60K
FLYBACK
GENERATOR
THERMAL
PROTECTION
2
6
3
5
4
7
1
POWER
AMPLIFIER
+
-
5-5. IC BLOCK DIAGRAMS
1
2
3
7
5
-
+
-
+
6
4
3
2
6
7
1
5
Vsense
Remote
DVLD
Internal
OFF
Latch
Centre
Osc
SS
F/B
Timer
TSD
OCP
Control
Logic
Level
Shift
Sel=34v
ref 5v
15v/8v
Driver
Reg. 10v
18
8
14
16
15
10
12
11
9
A BOARD IC501 STV9379A
A BOARD IC401/IC531 LM393DT
A BOARD IC601 MCZ3001D
A BOARD IC1201 TDA7495S
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