Sony KV-XG25M50 Service Manual ▷ View online
KV-XG25M50
RM-952
KV-XG25M50
RM-952
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
– 37 –
– 38 –
MAIN. TUVIF
TU101
BTF-LG433
<slave:C0H>
BTF-LG433
<slave:C0H>
YC JUNGLE
IC301
CXA2159S
CXA2159S
<slave:88H>
MONITOR
OUT
OUT
TV Y in
TV L in
TV R in
TV V in
C1 in
46
43
C1 out
CN1405
CN1405
V1 Y in
V1 L in
V1 R in
L out 2
R out 2
JACK BLOCK
J8402
PIN 9P
PIN 9P
VIDEO IN 1
B6
(Cispr, A/C Fuse, A/V input, Monitor out)
A
RED OUT
GREEN OUT
BLUE OUT
VIDEO AMP
Q701-Q712
Q701-Q712
N/S DRIVE
IC1800
IC1800
C6
(RGB OUT)
VM1
(Velocity Modulation)
B6
(Cispr, A/C Fuse, A/V input, Monitor out)
R out
CRT SOCKET
G out
CRT
A60LPN70X
A60LPN70X
NECK ASSY
DY
Y25RSA
Y25RSA
B out
R out
VM out
G out
B out
24
25
26
23
21
20
13
15
16
IK in
H. DRIVE
H. PULSE
E/W
VD+
VD-
VM DRIVE
Q5902/5906
Q5902/5906
H-OUT
Q511
2SC4927
Q511
2SC4927
V-OUT
IC503
TDA8172
IC503
TDA8172
HDT
T501
T501
H-DRIVE
Q506
2SC2688
Q506
2SC2688
PIN-CONT
IC502
NJM2903M
IC502
NJM2903M
PIN-OUT
Q505
IRF614
Q505
IRF614
PMT
T505
T505
HLT
T504
T504
+B
Audio Front Vcc
+9V
11V
7V
+5V
5V REG & RESET
IC002 MM1319AF
9V REC IC603
5V REC IC604
STB TRANS
T604
STB SW TR
Q605
2SK2845
2SK2845
SRT
T603
POWER
IC601
STR-F6656
STR-F6656
LINE FILTER
T601
LINE
FILTER
FILTER
T8601
T8602
T8602
THP
THP600
AC CORD
DGC
PNC
& ADC
SYSTEM
Ucom
IC001
CXP86449
CXP86449
RECEIVER
SBX1981-51P
IC2901
IC2901
H2
SIRCS
HALF
B G R
BLK
I2L
MEMORY
IC003
M24C08-BN6
M24C08-BN6
17
28 29 30 31
+audio 3D Vcc
-audio 3D Vcc
R out
L out
*
*
(System Controller, Y/C Jungle,
Deflection ,Tuvif, Front Amp,
Power Supply)
SP ASSY
AUDIO
PROCESSOR
PROCESSOR
IC8203
TDA7429S
TDA7429S
<slave: 90H>
AUDIO OUT
IC201
TX8223K
IC201
TX8223K
V 2 Y in
V3 Y in
V3 L in
V2 Y in
V2 L in
V2 R in
V3 R in
VIDEO IN 2
J2903 3P
VIDEO IN 1
(FRONT)
bom H2
VIDEO IN 1
(FRONT)
bom H2
AUDIO MIXER
IC8204 UPC4558G2
IC8204 UPC4558G2
Q8310
MIXER
MIXER
Q8310
MIXER
MIXER
H2
(Control
Panel)
Panel)
KV-XG25M50
RM-952
KV-XG25M50
RM-952
– 39 –
– 40 –
5-2. CIRCUIT BOARDS LOCATION
5-3. SCHEMATIC DIAGRAM
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.
k
k
Ω = 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.
•
¢
: internal component.
•
: panel designation or adjustment for rrepair.
•
All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
B unless otherwise noted.
•
Redings are taken with a color-bar signal input.
no mark
no mark
: PAL
(
)
: SECAM
[
]
: NTSC 3.58
<<
>> : NTSC 4.43
•
Readings are taken with a 10W MW digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
All voltage are in V.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
÷
: signal path.
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.
VM1
A
B6
H2
C6
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
KV-XG25M50
RM-952
KV-XG25M50
RM-952
– 41 –
– 42 –
(1) Schematic Diagram of B6 Board
1
2
1
2
1
2
3
4
1
2
3
4
-2
-2 -2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
V1
L1
R1
L2
V2
R2
V3
L3
R3
-2
1
2
3
-3
1
2
3
4
5
6
-2
-2
-2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
1
0
11
1
2
1
3
1
4
1
5
1
6
-4
-4
-4 -4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-2
-2
1
2
3
4
5
6
7
1
C8304
CN8402
C
8
6
0
2
C
8
6
0
1
R8601
R8216
R8217
R8218
R8215
R8220
C8227
C8230
C8233
C8232
C
8
2
3
4
C
8
2
3
6
C8238
C8240
C8242
C8244
C8246
C8248
C8249
C8251
C8253
C8255
C8228
C8229
C8231
C8241
C
8
2
4
7
C8254
C8243
R8224
R8243
C8260
R8221
C8259
R8222
C8261
R8240
R8427
C8417
R8428
C8419
R8429
C8418
R8344
R8343
C8333
R8341
R8336
C8400
R8401
R8402
R8408
R8407
R8403
L8204
C8402
J8402
JR8401
R8409
C8403
R8410
R8411
R8413
R8416
R8414
R8412
R8405
R8406
R8417
R8415
R8418
R8419
R8426
R8421
R8424
R8425
R8423
R8420
C8413
C8404
C8405
C8406
C8415
C8408
C8407
C8410
C8412
C8411
R8422
JW8402
C8263
F8601
CN8603
C8573
R8579
C8258
R8400
J
R
8
4
0
2
R8225
R8226
R8223
R8342
R8337
CN8403
CN8401
C8409
JW8416
R8238
R8239
C8654
JW8201
JW8401
D8414
JW8417
D8412
D
8
4
1
3
R8588
R8587
Q8578
R8576
D8300
R8335
C8301
R8334
J
W
8
5
0
1
J
W
8
5
0
2
C8416
R8404
C8235
C8252
C8401
R8219
R8430
R8242
T8601
T8602
CN8300
JW8503
R8241
L8301
JR8205
C
8
2
4
5
C8250
C8305
CN8601
CN8602
VDR801
C8222
IC8501
C8581
R8598
R8599
CN8501
L8502
Q8571
C8580
R
8
5
7
4
R
8
5
7
5
C8574
R8577
L
8
5
7
0
C8575
C8576
C8577
Q8574
R8580
Q8573
Q8572
R8578
R8570
C8571
R8571
R8572
R8573
C8572
Q8575
C8578
R8581
R8582
R8583
R8584
Q8576
R8585
R8586
Q8577
R8596
R8592
R8595
R8591
R8594
R8590
R8593
R8589
C8414
R8339
C8579
Q8401
Q8402
D8403
Q
8
4
0
3
D8401
D8404
Q8404
D8406
D
8
4
0
2
D8407
D8408
D8409
D8410
Q8310
Q8309
D8411
D
8
4
0
5
IC
8
2
0
4
IC8203
47
#
0
:CHIP
#
1P
:TAB
1M
1/2W
#
#
#
#
#
#
#
#
#
#
#
0.1
25V
25V
B:CHIP
0.022
B:CHIP
0.018
B:CHIP
0.0056
B:CHIP
B:CHIP
0.018
B:CHIP
0.0056
B:CHIP
B:CHIP
0.022
B:CHIP
0.1
25V
25V
B:CHIP
0
.1
2
5
V
B
:C
H
IP
0.1
25V
25V
B:CHIP
0
.1
2
5
V
B
:C
H
IP
2.2
16V
16V
F:CHIP
2.2
16V
16V
F:CHIP
1
16V
F:CHIP
2.2
16V
16V
F:CHIP
1
16V
F:CHIP
0.68
16V
F:CHIP
1
1
6
V
F
:C
H
IP
0.0056
B:CHIP
B:CHIP
1
1
6
V
F
:C
H
IP
0.0012
B:CHIP
B:CHIP
0.1
25V
25V
B:CHIP
1 16V
F:CHIP
0.0047
B:CHIP
B:CHIP
1
16V
F:CHIP
0.022
B:CHIP
22
0.022
B:CHIP
0.1
25V
25V
B:CHIP
100
16V
16V
100p
CH:CHIP
100p
CH:CHIP
0.1
25V
25V
B:CHIP
100
16V
16V
10
1
16V
F:CHIP
1
16V
F:CHIP
470p
B:CHIP
470p
B:CHIP
470
16V
16V
1
16V
F:CHIP
1
16V
F:CHIP
470p
CH:CHIP
100
16V
16V
1
16V
F:CHIP
470p
CH:CHIP
1
16V
F:CHIP
470p
CH:CHIP
470p
CH:CHIP
1
16V
F:CHIP
470p
CH:CHIP
1
16V
F:CHIP
470p
CH:CHIP
0
.4
7
2
5
0
V
0
.6
8
2
5
0
V
0.0047
250V
E
6P
WHT
:S-MICRO
10P
YEL
YEL
:S-MICRO
7P
WHT
:S-MICRO
2P
:VH
2P
:VH
RD9.1SB-T1
DA204K
R
D
9
.1
S
B
-T
1
FUSE
JACK 9P
5MM
7.5MM
5MM
5
M
M
5
M
M
10MM
2.7k
:CHIP
2.7k
:CHIP
5.6k
:CHIP
5.6k
:CHIP
100
:CHIP
100
:CHIP
39k
:CHIP
39k
:CHIP
3.9k
:CHIP
10k
:CHIP
6.8k
:CHIP
6.8k
:CHIP
5.6k
:CHIP
5.6k
:CHIP
39k
:CHIP
5.6k
:CHIP
5.6k
:CHIP
39k
:CHIP
75
:CHIP
220
:CHIP
470
:CHIP
680
:CHIP
680
:CHIP
1k
:CHIP
3.9k
:CHIP
10k
:CHIP
1k
:CHIP
10k
:CHIP
10k
:CHIP
10k
:CHIP
1k
:CHIP
10k
:CHIP
1k
:CHIP
1k
:CHIP
470
:CHIP
470k
:CHIP
470k
:CHIP
470
:CHIP
68
:CHIP
470k
:CHIP
470k
:CHIP
47k
:CHIP
47k
:CHIP
470k
:CHIP
75
:CHIP
470k
:CHIP
15k
:CHIP
15k
:CHIP
470k
:CHIP
75
:CHIP
220
:CHIP
220
:CHIP
47k
:CHIP
470k
:CHIP
47k
:CHIP
470k
:CHIP
1k
:CHIP
ERZV14D621
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
4.7
2.2k
:CHIP
#
UN2216
BUFFER
BUFFER
UN2216
PROTECT
RD9.1S-B
PROTECT
2
S
A
1
1
6
2
-G
B
U
F
F
E
R
RD9.1S-B
PROTECT
RD9.1S-B
PROTECT
2SA1162-G
BUFFER
RD9.1S-B
PROTECT
R
D
9
.1
S
-B
P
R
O
T
E
C
T
RD9.1S-B
PROTECT
RD9.1S-B
PROTECT
RD9.1S-B
PROTECT
RD9.1S-B
PROTECT
2SC1623-L5L6
BUFFER
2SC1623-L5L6
BUFFER
RD9.1S-B
PROTECT
R
D
9
.1
S
-B
P
R
O
T
E
C
T
A
U
D
IO
IN
D
E
N
P
E
N
C
E
M
A
T
C
H
IN
G
TDA7429S
AUDIO SW
AUDIO SW
PROCESSOR
R
L
L
R
R
L
L
R
R
L
S
D
A
S
C
L
SDA
SCL
R
L
L
R
R
L
D3
D2
D0
D1
D
3
D
2
D
1
D
0
SCL
SDA
L
L
T
R
EBL
E R
T
R
EBL
E L
AGND
SDA
SCL
DI
G-
GND
R-
OUT
L-
O
U
T
L-
IN
3
L-
IN
1
MONI
T
O
R-
L
MONI
T
O
R-
R
R-
IN
1
R-
IN
2
R-
IN
3
CREF
VS
L-
IN
2
AUXOUT
-R
AUXOUT
-L
MODEL
R0
BASS-
R1
BASS-
R0
BASS-
L
1
BASS-
L
0
VAR-
R
BASSO-
L
VAR-
L
REARI
N
REAROUT
HP2
HP1
LP
1
LP
PS1
PS2
PS3
PS4
M
O
D
E
L
R
1
B
A
S
S
O
-R
M
O
D
E
L
L
1
M
O
D
E
L
L
0
AC IN
AC IN
AC OUT
AC OUT
GND
A GND
9V
TV L IN
A GND
TV R IN
A GND
R OUT
L OUT
A GND
A GND
SCL
SDA
AUDIO GND
VIDEO GND
VIDEO 2F
V GND
R IN
VIDEO 2
V GND
VIDEO 1
CVBS
L/MONO
L/MONO
VIDEO
L/MONO
VIDEO IN 1
VIDEO IN 2
MONITOR OUT
R AUDIO
R AUDIO
R AUDIO
D1
D0
DVD SW
MATRIX
GND
VCC
D3
D2
Y GND
Y GND
Y IN
MOMUTE
V GND
A GND
L IN
V GND
A
U
D
IO
(L
)
A
U
D
IO
(L
)
A
U
D
IO
(R
)
VIDEO
V
ID
E
O
VIDEO
V
ID
E
O
A
U
D
IO
(R
)
AUDIO (R/L)
CISPR, AC FUSE,
AV INPUT &
AV INPUT &
MONITOR INPUT
(
)
TO A BOARD
CN308/CN107
TO A BOARD
CN101/102
TO A BOARD
CN104
TO A BOARD/H2 BOARD
CN106/CN2904
B-SSSBG3R-...-B6.XG25
KV-XG25M50
RM-952
KV-XG25M50
RM-952
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
(2) Schematic Diagram of A
(1/8)
Board
– 43 –
– 44 –
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
V
L
R
1
2
3
4
5
6
1
2
1
2
3
4
5
6
7
8
9
1
0
IC003
C005
C004
C003
C008
C006
C007
C002
C014
C015
L003
C
0
1
6
C017
C021
C020
C
0
2
4
C
0
2
3
C
0
2
2
D
0
0
1
C301
R903
R905
R907
R904
R906
R908
D901
D902
D903
R015
R014
R315
C315
L302
C317
R052
C033
R366
R367
J902
D
0
0
5
R053
R062
R063
R064
R065
C001
JW080
D300
R331
D313
CN905
D317
C326
CN001
R324
L305
R
0
2
0
R
0
5
8
D007
D008
D009
C
0
5
6
R
0
2
9
R
0
2
6
R
0
2
5
R
0
2
4
R022
R
0
1
8
R016
R002
R001
R
0
0
4
R
0
0
5
R010 R011 R012 R013
JR001
R009
R008
R007
R003
L002
C
0
1
3
Q301
R302
R303
C907
C908
C906
C909
C905
C316
C009
C010
C011
C012
R019
R021
C043
C
0
4
4
Q313
R323
R
0
5
9
R
0
6
0
R336
R353
D301
JW008
L001
D006
R017
C055
R061
Q002
R229
C223
R
0
2
7
R
0
2
8
R
0
2
3
Q001
C303
R301
C321
Q304
Q317
Q316
CN303
CN302
D
0
0
2
JW901
CN901
D314
JW075
M24C08-BN6
NVM
220p
B:CHIP
220p
B:CHIP
#
#
0.1
25V
25V
B:CHIP
47
16V
#
47
25V
0.001
B:CHIP
4
7
p
C
H
:C
H
IP
68p
CH:CHIP
#
220p
CH:CHIP
1
0
p
C
H
:C
H
IP
1
0
p
C
H
:C
H
IP
1
0
p
C
H
:C
H
IP
L
N
K
0
2
1
0
0
3
7
F
1
M
U
T
E
470
16V
16V
#
#
#
#
#
#
#
#
#
100
:CHIP
100
:CHIP
1.5k
:CHIP
0.1
25V
25V
B:CHIP
0.1
25V
25V
B:CHIP
#
#
10k
:CHIP
10k
:CHIP
#
1
S
S
3
5
5
1k
:CHIP
470
:CHIP
470
:CHIP
470
:CHIP
470
:CHIP
#
7.5MM
0 :CHIP
0 :CHIP
1SS355
#
#
#
#
1.5k
:CHIP
#
6
8
0
:C
H
IP
0
:C
H
IP
1SS355TE-17
1SS355TE-17
1SS355TE-17
3
3
0
p
C
H
:C
H
IP
1
k
:C
H
IP
3
.9
k
:C
H
IP
3
.9
k
:C
H
IP
3
.9
k
:C
H
IP
100
:CHIP
2
2
0
:C
H
IP
#
100
:CHIP
0UH
:CHIP
1
0
0
:C
H
IP
1
0
0
:C
H
IP
4.7k
:CHIP
4.7k
:CHIP
4.7k
:CHIP
4.7k
:CHIP
0
:CHIP
#
4.7k
:CHIP
#
10k
:CHIP
0
.0
1
B
:C
H
IP
2SA1162
VCC FALL
DETECTOR
DETECTOR
0
:CHIP
1k
:CHIP
#
#
#
#
#
220
16V
16V
#
#
#
#
10k
:CHIP
10k
:CHIP
100p
CH
1
0
0
p
C
H
:C
H
IP
2SC2712
BUFFER
1.5k
:CHIP
0
:C
H
IP
0
:C
H
IP
#
#
:CHIP
1SS355
PROTECT
7.5MM
#
#
#
100
220
:CHIP
2SC2712-YG
BUFFER
10k
:CHIP
22
1
0
k
:C
H
IP
#
#
2SA1162-G
MUTE
10
10
:CHIP
#
2SA1162-G
SWITCH
2SA1162-G
PROTECT
2SA1162-G
R-Y BUFFER
3P
#
#
5.0MM
6P
1SS355TE-17
5.0MM
NS ROT
7
V
5
V
J
O
I
N
T
1
JOINT A1
JOINT A2
JOINT A3
JOINT A4
JOINT A5
JOINT A6
JOINT A7
JOINT A8
JOINT A9
JOINT A10
JOINT A11
JOINT A12
JOINT A13
JOINT A14
JOINT A15
JOINT A16
JOINT A17
JOINT A18
JOINT A19
JOINT A20
JOINT A21
JOINT A22
JOINT A14
JOINT A15
JOINT A16
JOINT A17
JOINT A18
JOINT A19
JOINT A20
JOINT A21
JOINT A22
JOINT A23
JOINT A24
JOINT A25
JOINT A25
JOINT A26
JOINT A27
JOINT A28
JOINT A29
J
O
IN
T
2
J
O
IN
T
3
J
O
IN
T
4
J
O
I
N
T
5
J
O
IN
T
6
J
O
IN
T
7
J
O
IN
T
8
J
O
IN
T
9
J
O
IN
T
1
0
J
O
IN
T
1
1
J
O
IN
T
1
2
J
O
IN
T
1
3
J
O
IN
T
1
4
J
O
IN
T
1
5
J
O
IN
T
1
6
J
O
IN
T
1
7
J
O
IN
T
1
8
J
O
IN
T
1
9
J
O
IN
T
2
0
J
O
IN
T
2
1
J
O
IN
T
2
2
J
O
IN
T
2
3
J
O
IN
T
2
4
J
O
IN
T
2
5
J
O
IN
T
2
6
J
O
IN
T
2
7
J
O
IN
T
2
8
J
O
IN
T
2
9
J
O
IN
T
3
0
J
O
IN
T
3
1
J
O
IN
T
3
2
J
O
IN
T
3
3
J
O
IN
T
3
4
J
O
IN
T
3
5
J
O
IN
T
3
6
J
O
IN
T
3
7
J
O
IN
T
3
8
J
O
IN
T
3
9
J
O
IN
T
4
0
J
O
I
N
T
4
1
J
O
IN
T
4
2
V
O
L
C
O
N
T
S
A
P
S
T
A
U
D
IO
S
W
L
LED1
LED2
C
IN
R
CV/Y
Y
M
G
R
Y
S
C
V
/Y
1
R
-
Y
Y
Y
S
B
-
Y
B
SCL
SDA
R
-
Y
B
-
Y
Y
Y
S
SP R
SP GND
SP GND
SP L
B
-Y
IN
R
-Y
IN
G
N
D
Y
IN
Y
S
IN
G
N
D
Y
O
U
T
G
N
D
R
-Y
O
U
T
B
-Y
O
U
T
7
V
G
N
D
3
0
V
G
N
D
A
F
T
2
S
C
P
V
T
IM
G
N
D
PH R
PH L
V2
GND
5V
30V
30V
30V
30V
9V
9V
9V
9V
9V
9V
9V
11V
11V
11V
11V
11V
11V
11V
5V
5V
B
-Y
B
-Y
R-Y
R
-Y
9V
9V
TO PAGE 1(3/4)
T
O
P
O
P
A
G
E
1
G
E
1
(2
/4
)
SYSTEM CONTROLLER,Y/C JUNGLE,
DEFLECTION,TUVIF,FRONT AMP,
POWER SUPPLY
(
)
TO H2 BOARD
CN2902
B-SSS10727-EM-.A..-XG25.PG 1(1/4)
Click on the first or last page to see other KV-XG25M50 service manuals if exist.