Sony KV-SW252M50 Service Manual ▷ View online
– 33 –
KV-SW252M50/M80
RM-GA002
4-2. CIRCUIT BOARDS LOCATION
4-3. SCHEMATIC DIAGRAM INFORMATION
Note:
•
•
All capacitors are in µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise
noted.
noted.
•
All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
kΩ = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating electrical
power is as follows.
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
: fusible resistor.
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
B unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
no mark
: Common
(
)
: PAL
[
]
: NTSC 3.58
•
Readings are taken with a 10MΩ digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal production
tolerances.
tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
k
: signal path.
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
: RW
NONFLAMMABLE WIREWOUND
:
✽
ADJUSTMENT RESISTOR
COIL
: LF-8L
MICRO INDUCTOR
CAPACITOR
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note:
The component identified by shading and
mark
mark
! are critical for safety. Replace only
with part number specified.
Note: "A" board schematic diagram is divided into 3
blocks. Each block is named by its function and
block "number". eg: Processor/Audio/Tuner/Jack
(Block 001).
Joint connection between boards can be identified
using the block number followed by the grid's guide.
block "number". eg: Processor/Audio/Tuner/Jack
(Block 001).
Joint connection between boards can be identified
using the block number followed by the grid's guide.
eg:-
<
+B
002:16F
Meaning: Block 001 joint "+B" is connected to Block
002 joint "+B" located at grid 16F.
002 joint "+B" located at grid 16F.
A Board
J3 Board
F1 Board
VM Board
H4 Board
F2 Board
H7 Board
C Board
KV-SW252M50/M80
RM-GA002
KV-SW252M50/M80
RM-GA002
– 34 –
– 35 –
4-3-1. C Board Schematic Diagram
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B
C
D
E
F
G
H
I
J
250V
10
C751
HSS82-TJ
D754
C783
1000p
B
1
1P
CN702
GND
2SA1175-HFE
Q1800
1
1P
CN705
GND
1
3
4
WHT
3P
CN703
200V
GND
H1
5
JW1713
25V
1000
C1809
10
C1804
HSS82-TJ
D756
250V
4.7
C781
D781
XX
XX
Q701
JW1751
XX
C782
1SS119-25
D1803
GP08D
D750
1
2
3
WHT
3P
CN1802
N/S COIL-
NC
N/S COIL+
1
CN704
1P
1000V
1000V
10uH
L750
GP08D
D1808
D1804
XX
1 2
9
8
7
6
5
4
3
TDA6108AJF/N1
RGB AMPLIFIER
IC751
B IN
G IN
R IN
GND
IK
VDD
R OUT
G OUT
B OUT
RD5.6ESB2
PROTECT
D782
47k
RV1800
C759
XX
B
HSS82-TJ
D755
D780
XX
2kV
4700p
E
C752
JW3880
C3800
XX
D3801
XX
R3808
XX
R3814
XX
D3800
C3801
XX
JW752
XX
JW753
XX
JW754 XX
FPRD
R1803
3.3
3.3
R1802
FPRD
1
2
3
4
5
CN3800
LC(B)
LC(E)
GND
7V
11V
1SS133T-77
D783
B
C784
1000p
1SS133T-77
D784
250V
0.1
C753
PT
1SS133T-77
D785
1SS133T-77
D786
1SS133T-77
D787
2kV
E
C786
4700p
1
*
CN706
GND
1
1P
CN707
GND
1
2
3
4
5
6
7
7P
CN701
WHT
GND
B OUT
G OUT
G OUT
R OUT
GND
1K
9V
2kV
E
C787
4700p
5
JW1881
5
JW1880
3 5
6
7
8
9
10
11
13
1
4
J752
XX
R774
150
3W
RS
*
L753
*
L754
R3816
XX
250V
4.7
C754
*
L752
10
C785
3
4
5
6
7
8
9
10
11
13
1
GND
GND
1
J751
KTC3199GR-TP
Q1804
AMPLIFIER
BUFFER
22
C756
XX
C791
GND_3
GND_3
5
JW1826
5
JW1830
JW3820
JW3815
1 5
4
3
2
6 7 8 9
10
IC1800
XX
NS DRIVE
1 5
4
3
2
6 7 8 9
10
IC3800
XX
XX
JW1831
XX
5
JW1832
JW3821
JW3822
XX
C3802
XX
JW1833
XX
JW3824
XX
25V
100
C1803
SG700
1 2
9
8
7
6
5
4
3
IC3801
1 2
9
8
7
6
5
4
3
IC1801
AN15530A
5
JW1825
5
JW1821
5
JW1804
JW3801
XX
MSD601-RT1
PWM AMP
Q1802
MSD601-RT1
MUTE SW
Q1801
Q3800
Q3802
1
2
3
4
5
6
7
RED
7P
CN1801
VD+
GND
5V
15V
11V
ROT_CTRL
ROT_SW
1
R794
100p
C789
47p
C790
820
R752
100p
C788
1/2W
1k
R756
1/2W
1k
R757
1/2W
1k
R758
R1815
220k
RN-CP
*
RV750
R3801
XX
L780
22UH
25V
47
C1800
L751
XX
XX
R776
1/2W
100
R765
470
R796
10k
R1828
RN-CP
R3810
XX
4.7k
R1806
RN-CP
R768
XX
10k
R1809
RN-CP
XX
R1822
R3807
XX
R3818
XX
XX
R775
10k
R1816
RN-CP
XX
R783
R3815
XX
XX
R778
XX
R1823
XX
R1801
1/2W
100
R763
XX
R1825
R786
XX
XX
R1824
1/2W
R795
100
R1821
XX
R3812
XX
R713
XX
R3809
XX
1/2W
100
R764
XX
R777
680
R754
680
R753
R3813
XX
XX
R1811
220
R797
R1814
2.2k
RN-CP
1/2W
560k
R773
R766
XX
R1813
2.2k
RN-CP
R784
XX
R3800
XX
XX
R1826
10k
R1810
RN-CP
1k
R1800
XX
R1812
1/2W
470k
R780
R3811
XX
R785
XX
XX
R3817
R3806
XX
10k
R1827
RN-CP
R767
XX
XX
R1829
1k
R1805
RN-CP
R3804
XX
RN-CP
R1830
330
4.7k
R1808
RN-CP
R3802
XX
R3819
XX
R3805
RN-CP
XX
1/2W
120k
R760
3W
RS
R781
1.8
XX
R787
SG701
FV
RCV
C
TO A (Block 002)
CN507
TO ROTATION COIL
ROTATION
CIRCUIT
LANDING CORRECTION
CIRCUIT
RGB AMPLIFIER
TO A (Block 002)
CN512
TO L.C. COIL
TO FBT
TO A (Block 002)
CN505
TO A (Block 001)
CN004
FV
GND
!
RGB/AMP/Rotation/Landing Correction
5V
11V
5V
5V
7V
7V
7V
7V
7V
11V
7V
B-BX1L(05)13033-ID.-C..-SW252M50
RECTIFIER
ROTATION AMP
PROTECT
PROTECT
PROTECT
PROTECT
PROTECT
PROTECT
LCC AMP
LCC AMP
PROTECT
PROTECT
PWM AMP
MUTE SW
PROTECT
PROTECT
PROTECT
PROTECT
RGB LIMITER
RGB LIMITER
RGB LIMITER
BUFFER
XX
5
XX
XX
XX
151942111
145154411
XX
XX
XX
XX
XX
H
KG
G2
CV
KR
G1
G4
HV
KB
Picture
Tube
!
A80LPD90X
6
5
4
1
2
3
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