Sony KV-XA25M93 Service Manual ▷ View online
KV-XA25M93/XA29M80
RM-954
KV-XA25M93/XA29M80
RM-954
– 47 –
– 48 –
6-2. CIRCUIT BOARDS LOCATION
VM1
A
D3
(KV-XA29M80)
F
B1
B
H
C6
J (KV-XA29M80)
J1 (KV-XA25M93)
6-3. 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.
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-XA25M93/XA29M80
RM-954
KV-XA25M93/XA29M80
RM-954
– 49 –
– 50 –
(1) Schematic Diagram of A Board
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
D001
D301
C301
C303
JW901
R903
R905
R907
R904
R906
R908
D901
D902
D903
R015
R014
Q304
R315
C315
L302
C317
R052
C033
D002
CN302
*
*
J902
D
0
0
5
R053
R062
R063
R
0
6
4
R065
D006
C001
JW080
JW008
R061
D300
CN901
D313
R301
L001
CN905
C300
D317
C326
D314
C223
R229
CN001
C321
R
0
2
0
R
0
5
8
D007
D008
D009
R336
R
0
2
9
R
0
28
*
R
0
2
7
R
0
2
6
R
0
2
5
R
0
2
4
R
0
2
3
R022
R
0
1
8
R017
R016
R
0
0
2
R001
R
0
0
4
R
0
0
5
R
0
1
0
R
0
1
1
R
0
1
2
R013
JR001
R009
R008
R007
R003
L002
C
0
1
3
Q001
Q301
R302
R303
C907
C908
C906
C909
C905
CN303
C316
C009
C010
C011
C012
R
0
1
9
R021
Q002
C043
C
0
4
4
Q313
C055
JW075
R
0
5
9
R
0
6
0
M24C08-BN6(A)
NVM
220p
B:CHIP
220p
B:CHIP
#
#
0.1
25V
25V
B:CHIP
*
#
47
25V
0.001
B:CHIP
4
7
p
C
H
:
C
H
I
P
68p
CH:CHIP
#
*
1
0
p
C
H
:
C
H
I
P
1
0
p
C
H
:
C
H
I
P
1
0
p
C
H
:
C
H
I
P
*
MUTE
1SS355TE-17
PROTECT
470
16V
0.47
#
#
#
#
#
#
#
#
#
#
100
:CHIP
100
:CHIP
2SA1162-G
SWITCH
1.5k
:CHIP
0.1
25V
25V
B:CHIP
0.1
25V
25V
B:CHIP
#
#
1SS355TE-17
#
1
S
S
3
5
5
T
E
-
1
7
1k
:CHIP
470
:CHIP
470
:CHIP
4
7
0
:
C
H
I
P
470
:CHIP
*
#
7.5MM
#
0
:CHIP
0
:CHIP
#
1SS355TE-17
470k
:CHIP
JW(5)
#
2.2
16V
16V
F:CHIP
#
#
#
#
#
#
0.22
16V
:CHIP
16V
:CHIP
6
8
0
:
C
H
I
P
0
:
C
H
I
P
1SS355TE-17
1SS355TE-17
1SS355TE-17
1K
1
k
:
C
H
I
P
1
k
:
C
H
I
P
3
.
9
k
:
C
H
I
P
3
.
9
k
:
C
H
I
P
3
.
9
k
:
C
H
I
P
1
k
:
C
H
I
P
*
2
2
0
:
C
H
I
P
#
1
0
0
:
C
H
I
P
0UH
:CHIP
1
0
0
:
C
H
I
P
1
0
0
:
C
H
I
P
4
.
7
k
:
C
H
I
P
4
.
7
k
:
C
H
I
P
4
.
7
k
:
C
H
I
P
4.7k
:CHIP
0
:CHIP
#
4.7k
:CHIP
#
10k
:CHIP
0
.
0
1
B
:
C
H
I
P
2SA1162-G
2SA1162-G
VCC FALL
DETECTOR
DETECTOR
0
:CHIP
1k
:CHIP
#
#
#
#
#
10P
:BTOB
220
16V
16V
#
#
#
#
1
0
k
:
C
H
I
P
10k
:CHIP
2SC2712-YG
BUFFER
100p
CH:CHIP
1
0
0
p
C
H
:
C
H
I
P
2SC2712-YG
BUFFER
#
#
0
:
C
H
I
P
0
:
C
H
I
P
NS ROT
7
V
5
V
JOINT A1
JOINT A2
JOINT A3
JOINT A4
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 A23
JOINT A25
JOINT A26
JOINT A27
JOINT A28
JOINT A29
JOINT A30
JOINT A31
JOINT A32
JOINT A33
JOINT A34
JOINT A35
JOINT A36
JOINT A29
JOINT A30
JOINT A31
JOINT A32
JOINT A33
JOINT A34
JOINT A35
JOINT A36
JOINT A37
J
O
I
N
T
1
J
O
I
N
T
2
J
O
I
N
T
3
J
O
I
N
T
4
J
O
I
N
T
5
J
O
I
N
T
6
J
O
I
N
T
7
J
O
I
N
T
8
J
O
I
N
T
9
J
O
I
N
T
1
0
J
O
I
N
T
1
1
J
O
I
N
T
1
2
J
O
I
N
T
1
3
J
O
I
N
T
1
4
J
O
I
N
T
1
5
J
O
I
N
T
1
6
J
O
I
N
T
1
7
J
O
I
N
T
1
8
J
O
I
N
T
1
9
J
O
I
N
T
2
0
J
O
I
N
T
2
1
J
O
I
N
T
2
2
J
O
I
N
T
2
3
J
O
I
N
T
2
4
J
O
I
N
T
2
5
J
O
I
N
T
2
6
J
O
I
N
T
2
7
J
O
I
N
T
2
8
J
O
I
N
T
2
9
J
O
I
N
T
3
0
J
O
I
N
T
3
1
J
O
I
N
T
3
2
J
O
I
N
T
3
3
J
O
I
N
T
3
4
J
O
I
N
T
3
5
J
O
I
N
T
3
6
J
O
I
N
T
3
7
J
O
I
N
T
3
8
J
O
I
N
T
3
9
J
O
I
N
T
4
0
J
O
I
N
T
4
1
J
O
I
N
T
4
2
J
O
I
N
T
4
3
J
O
I
N
T
4
4
J
O
I
N
T
4
5
J
O
I
N
T
4
6
J
O
I
N
T
4
7
J
O
I
N
T
4
8
J
O
I
N
T
4
9
J
O
I
N
T
5
0
J
O
I
N
T
5
1
J
O
I
N
T
5
2
J
O
I
N
T
5
3
J
O
I
N
T
5
4
J
O
I
N
T
5
5
JOINT A24
V
O
L
C
O
N
T
S
A
P
S
T
A
U
D
I
O
S
W
L
LED1
LED2
C
I
N
R
CV/Y
Y
M
G
R
Y
S
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
I
N
R
-
Y
I
N
G
N
D
Y
I
N
Y
S
I
N
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
I
M
G
N
D
PH R
PH L
V2
GND
TO B BOARD
CN1406
CN1404
+5V
9V
9V
9V
5V
5V
7V
30V
30V
30V
11V
11V
11V
11V
11V
11V
R
-
Y
B
-
Y
TO B BOARD
1.0K
B-SSS10651-HK.-A..PAGE 1(1/4)
TO PAGE 1 (3/4)
TO PAGE 1(2/4)
PAGE 1 (1/4)
SYSTEM CONTROLLER,Y/C JUNGLE,DEFLECTION,
TUVIF,FRONT AMP,POWER SUPPLY
(
(
11V
C056
330P
330P
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-XA25M93/XA29M80
RM-954
KV-XA25M93/XA29M80
RM-954
– 53 –
– 54 –
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
43
44
45
46
47
48
49
50
51
52
1
2
3
4
5
6
7
8
9
3
1
2
1
2
3
4
5
6
7
1
2
3
4
5
6
7
-2
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
-3
-3
-3
C029
C025
C026
C027
CN904
C032
C031
C030
C028
JW902
R901
R902
S901
S902
S903
S904
S905
S906
S907
R911
R912
R913
R914
R915
R909
R910
D904
D905
R345
R348
R339
JR302
C910
IC901
C911
L905
C912
L901
L902
C336
IC002
CN306
D003
D004
D906
C
0
4
1
C042
C045
C046
R066
C
0
4
7
C019
47
25V
L004
L005
R055
C034
D316
D315
Q312
R321
C341
R320
R338
C048
R067
IC302
L304
C335
C347
C346
C323
C349
R384
R383
R385
C348
R380
Q314
C350
Q303
Q305
R068
R
0
4
7
R046
R045
R044
R043
R042
R041
R040
R039
R037
R036
R035
R034
R032
R031
R030
X001
R048
R049
R050
C901
C902
R916
C914
R917
R918
C913
Q
3
1
1
R328
R329
J901
R054
Q902
Q901
C050
C051
C053
C054
R006
R057
Q309
R372
R371
R313
Q302
R312
R311
R314
R317
Q306
R378
R316
R318
R379
R382
C352
Q005
IC001
#
#
0.1
25V
25V
B:CHIP
0.1
25V
25V
B:CHIP
9P
WHT
:S-MICRO
0.47
16V
B:CHIP
0.1
25V
25V
B:CHIP
22
0.022
B:CHIP
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
4.7k
:CHIP
4.7k
:CHIP
#
#
10k
:RN-CP
220
:CHIP
#
#
#
#
0.1
25V
25V
B:CHIP
#
#
0.1
25V
25V
B:CHIP
MM1319AFBE
RESET SUREG
4P
WHT
:S-MICRO
#
*
#
1
0
0
p
C
H
:
C
H
I
P
100p
CH:CHIP
#
#
1k
:CHIP
1
0
0
p
C
H
:
C
H
I
P
JW(5)
:CHIP
#
*
RD9.1S-B
1SS355TE-17
2
S
A
1
1
6
2
-
G
10k
:CHIP
0.22
25V
B:CHIP
4.7k
:CHIP
330
100p
CH:CHIP
1k
:CHIP
TDA9181T
COMB FILTER
0.1
25V
25V
B:CHIP
100
16V
16V
#
#
0.1
25V
25V
B:CHIP
470
:CHIP
1k
:CHIP
150
:CHIP
0.1
25V
25V
B:CHIP
#
2SA1162-G
BUFFER
0.01
F:CHIP
2SA1162-G
BUFFER
2SA1162-G
BUFFER
470
:CHIP
0
U
H
:
C
H
I
P
1k
:CHIP
0UH
:CHIP
100
:CHIP
1k
:CHIP
0
:CHIP
100
:CHIP
100
:CHIP
#
1
k
:
C
H
I
P
100
:CHIP
100
:CHIP
1
0
0
:
C
H
I
P
1k
:CHIP
100
:CHIP
1k
:CHIP
#
CST10.00MX
VIBRATOR,CERAMIC
10k
:CHIP
#
10k
:CHIP
#
#
#
#
#
#
100
10V
10V
2
S
C
2
7
1
2
-
Y
G
I
N
V
E
R
T
E
R
4.7k
:CHIP
470
:CHIP
#
#
#
#
100p
CH:CHIP
100p
CH:CHIP
100p
CH:CHIP
#
#
#
UN2213
SWITCH
SWITCH
2
S
C
2
7
1
2
-
Y
G
56k
:CHIP
27k
:CHIP
330 :CHIP
2SC2712-YG
AMPLIFIER
390
:CHIP
470
:CHIP
27k
:CHIP
56k
:CHIP
2SC2712-YG
AMPLIFIER
470
:CHIP
330
:CHIP
390
:CHIP
10M
:CHIP
4.7k
:CHIP
0.1
25V
25V
B:CHIP
*
CXP750097-032S
SYSTEM
CONTROLLER
S
T
B
Y
+
5
V
S
T
-
B
Y
N
S
M
U
T
E
A
B
L
7V
1
1
V
+
B
S
T
B
Y
7
V
J
O
I
N
T
1
J
O
I
N
T
2
J
O
I
N
T
3
J
O
I
N
T
4
J
O
I
N
T
5
J
O
I
N
T
6
J
O
I
N
T
7
J
O
I
N
T
8
J
O
I
N
T
9
J
O
I
N
T
1
0
J
O
I
N
T
1
1
J
O
I
N
T
1
2
J
O
I
N
T
1
3
J
O
I
N
T
1
4
J
O
I
N
T
1
5
J
O
I
N
T
1
6
J
O
I
N
T
1
7
J
O
I
N
T
1
8
J
O
I
N
T
1
9
J
O
I
N
T
2
0
J
O
I
N
T
2
1
J
O
I
N
T
2
2
J
O
I
N
T
2
3
J
O
I
N
T
2
4
J
O
I
N
T
2
5
J
O
I
N
T
2
6
J
O
I
N
T
2
7
J
O
I
N
T
2
8
J
O
I
N
T
2
9
J
O
I
N
T
3
0
J
O
I
N
T
3
1
J
O
I
N
T
3
2
J
O
I
N
T
3
3
J
O
I
N
T
3
4
J
O
I
N
T
3
5
J
O
I
N
T
3
6
J
O
I
N
T
3
7
J
O
I
N
T
3
8
J
O
I
N
T
3
9
J
O
I
N
T
4
0
J
O
I
N
T
4
2
J
O
I
N
T
4
1
J
O
I
N
T
4
3
J
O
I
N
T
4
4
J
O
I
N
T
4
5
J
O
I
N
T
4
6
J
O
I
N
T
4
7
J
O
I
N
T
4
8
J
O
I
N
T
4
9
J
O
I
N
T
5
0
J
O
I
N
T
5
1
J
O
I
N
T
5
2
J
O
I
N
T
5
3
J
O
I
N
T
5
4
J
O
I
N
T
5
5
JOINT A38
JOINT A39
JOINT A40
JOINT A41
JOINT A42
JOINT A43
JOINT A44
JOINT A45
JOINT A46
JOINT A47
JOINT A48
JOINT A49
JOINT A50
JOINT A51
JOINT A52
JOINT A53
JOINT A54
JOINT A55
JOINT A57
JOINT A58
JOINT A59
JOINT A56
LED1
LED2
C
V
/
Y
S
I
N
LED2
LED1
YS
STBY+5V
GND
7V
LED2
LED1
GND
KEY2
KEY1
SIRCS
VM
GND
9V
VM MUTE
+B
SIRCS
ST-BY
HSYNC
VSYNC
VSS
XTAL
EXTAL
KEY2
KEY1
VM MUTE
AFT1
AFT2
B.INT
NS MUTE
OSD/
S
YUU SW
AUDIO SW (F MONO)
T
E
X
T
LED1
LED2
NS ROT
(MODE) VOL
SCL1
SDA0
SDA1
W PROTECT
S
C
L
0
A
T
T
S
W
V
S
S
V
D
D
N
C
E
X
L
C
X
L
C
Y
M
Y
S
I
B
G
R
M
U
T
E
S
A
P
S
T
R
E
S
E
T
O
U
T
G
N
D
R
E
F
I
N
R
S
T
G
N
D
NC
GND
N
C
I
N
T
N
T
/
P
A
L
A
P
C
N
CN3905
TO VM1 BOARD
CN5901
C OUT
INSEL
OUTSEL
Y OUT
DGND
AGND
VDD
V IN
VCC
SYS1
SC
SYS2
FSCSEL
FSC
+5V
+5V
+5V
+5V
7V
7V
9V
9V
9V
9V
11V
11V
11V
1
2
3
TO H BOARD
9V
10K
PAGE 1 (3/4)
SYSTEM CONTROLLER,Y/C JUNGLE,DEFLECTION,
TUVIF,FRONT AMP,POWER SUPPLY
(
(
TO PAGE 1 (1/4)
T
O
P
A
GE 1 (4/4)
B-SSS10651-HK.--A..PG 1 (3/4)
R038
Q310
FSC DRIVER
(
Click on the first or last page to see other KV-XA25M93 service manuals if exist.