Sony KV-J25MF8J Service Manual ▷ View online
– 31 –
– 34 –
6-2. FRAME SCHEMATIC DIAGRAM
– 33 –
– 32 –
CN901
CN905
CN908
OPEN
CN2201
CN127
CN118
CN106
CN107
CN108
CN109
CN120
CN1691
CN701
DY1
CN2601
CN2602
CN2605
CN527
CN530
CN518 5P
DY
OPEN
OPEN
AC IN
NC
NC
NC
AC IN
1000V
200V
GND
H1
1
2
3
4
1
2
3
4
5
AC OUT
NC
NC
NC
AC OUT
1000V
200V
H1
E
1
2
3
4
1
2
3
4
5
(RGB OUT)
(AC IN)
1
2
3
4
5
6
1
1
2
3
4
1K
GND
9V
B
G
R
AC
NC
NC
AC
GND
CN703
CN704
CN1690
CN2600
CN0521
PICTURE
TUBE
1
2
3
4
5
6
1
1
2
1
2
3
H+
H+
H-
H-
V-
V+
GND
DGC CHK
DGC CHK
CN525
1
A
GND
DGC
NC
DGC
GND
GND
135V
QP+
QP-
N.C
5
GND
1
2
3
4
1
1
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
GND
GND
GND
GND
GND
GND
ST-BY
DEG
AUDIO MUTE
AUDIO GND
AUDIO GND
AUDIO GND
30V/1A
30V/1A
H RELAY
AFC
14V
33V
BACKUP
7V
V-OUT
H ZOOM SW
CLH/D
11V
11V
X-RAY
VTIM
H DRIVE
ABL
9V
E/W
V+OUT
ROTATION
N/S-MUTE
CN506
KV-J29MF8J
ONLY
KV-J29MF8J
ONLY
ONLY
KV-J29MF8J
ONLY
CN526
CN520
CN528
1
2
3
4
5
6
7
E
VM OUT
9V
E
TB
QP+
QP-
8
N.C
CN961
1
2
3
GND
VM OUT
9V
1
2
3
4
5
6
7
8
9
10
11
12
9V
SDAT
SCLK
GND
L IN
R IN
GND
L OUT
12V
GND
R OUT
W-MUTE
CN121
1
2
3
4
5
6
VL IN
VL OUT
VR OUT
GND
W-MUTE
VR IN
CN128
9V
SDAT
SCLK
GND
L IN
R IN
GND
L OUT
12V
GND
R OUT
W-MUTE
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
GND
GND
GND
GND
GND
GND
GND
H RELAY
AFC
14V
33V
BACKUP
7V
N.C
N.C
N.C
11V
11V
X-RAY
VTIM
H DRIVE
ABL
9V
E/W
V+OUT
ROTATION
N/S-MUTE
MAIN TUNER,VIF,SIF
SW Y/C DECODE JUNGLE
1
2
3
4
5
6
7
8
1
2
3
4
GND
B INT
B DAT
B CLK
ST-BY
DEG
AUDIO MUTE
AUDIO GND
AUDIO GND
AUDIO GND
30V/1A
30V/1A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN103
CN102
SP L
SP L
PH L
SP GND
SP R
PH R
GND
FR C OUT
GND
SP GND
SP R
SP GND
SP GND
FR Y OUT
FR V OUT
S3
FR L OUT
GND
STBY +5V
7V
RED
GREEN
KEY 2
SIRCS
KEY 1
GND
GND
GND
GND
FR R OUT
SP L
SP L
PH L
SP GND
SP R
PH R
GND
FR C OUT
GND
SP GND
SP R
SP GND
SP GND
FR Y OUT
FR V OUT
S3
FR L OUT
GND
STBY +5V
7V
RED
GREEN
KEY 2
SIRCS
KEY 1
GND
GND
GND
GND
FR R OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
1K
GND
9V
B OUT
G OUT
R OUT
CN117
CN902
CN907
1
2
3
4
1
2
3
GND
GND
GND
SP L
SP GND
SP GND
SPR
SP L
SP R
1
2
3
4
W IN
W IN
W OUT
W OUT
(AUDIO EFFECT)
D
(POWER SUPPLY,DEFLECTION)
VM
(VM OUT)
A
H3
(CONTROL SW,INPUT TERMINAL)
S1
C2
F1
CN962
N/S COIL +
GND
N/S COIL -
15V
4
3
2
1
CN963
N/S+
N.C
N/S-
3
2
1
1
2
3
4
15V
N/S COIL -
GND
N/S COIL +
CN1804
GND
GND
2
3
1
2
3
4
5
6
VL OUT
VL IN
VR IN
GND
W-MUTE
VR OUT
CN2202
6-2. CIRCUIT BOARDS LOCATION
6-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
Note:
•
All capacitors are in
µ
F unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise noted.
•
All resistors are in ohms.
k
k
Ω
= 100
Ω
, M
Ω
= 1000k
Ω
•
Indication of resistance, which does not have one for
rating electrical power, is as follows.
rating electrical 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 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
: PAL
( )
: SECAM
[ ]
: NTSC 3.58
« »
: NTSC 4.43
•
Readings are taken with a 10 M
Ω
digital multimeter.
•
Voltage are dc with respect to ground unless otherwise noted.
•
Voltage variations may be noted due to normal production toler-
ances.
ances.
•
All voltages are in V.
•
: Can not be measured.
•
Circled numbers are waveform reference.
•
: B + bus.
•
: B – bus.
•
: signal path.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFRAMMABLE 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
!
!
!
!
!
are critical for safety. Replace only
with part number specified.
*
VM
S1
A
D
TUNER
C2
F1
H3
G
D
S
B1 E1
C2
B2 C1
E2
2
3
4
5
6
7
8
9
0
!¡
!™
!¢
!∞
!§
!¶
–
1
G
D
S
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
!•
B1 E1
E2
C1(B2)
C2
!ª
B1
E2
C1
C2
@¡
(B2)
E1
(B2)
E1
E2
B1
C2
C1
@º
B1
E1
C2
B2
C1
E2
G
S
S
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2
C1(B2)
E2
B1
C1
C2
E1(B2)
C2
B1
C1
E2
E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.3
Transistor
(FET)
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode
Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode
Cathode
Common
Cathode
Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device
Printed symbol
Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit (
)
Anode
Anode
Anode
Cathode
Anode
Anode
Cathode
!£
Transistor
(FET)
(FET)
Transistor
(FET)
(FET)
Source
Gate
Drain
– 56 –
– 55 –
(5) Schematic Diagram of VM Board
1
2
3
4
5
6
7
8
9
B
C
D
E
F
G
H
I
A
9V
5.5
5.9
5.0
2.8
2.1
2.1
2.8
137.2
136.8
69.5
0.9
0.4
5.0
1
2
3
1
2
3
4
5
6
7
8
1
2
3
4
C973
Q961
Q962
Q967
D967
D968
D964
C961
C970
C978
C979
C980
L961
Q965
Q968
R963
R965
R966
R967
R968
R970
R971
R972
R974
R975
R976
R977
R979
C969
R964
C964
R982
R986
R980
R985
C982
R973
C963
C968
Q963
R969
C972
R978
R981
R983
R984
C971
D965
CN961
CN963
CN962
C967
C966
C965
Q1832
R1837
R1842
Q1831
Q1833
R1838
R1833
R1836
D1833
R1839
R1840
Q1834
D1831
C983
C975
R1834
R1832
R962
C962
R1831
R1841
R1835
MTZJ39
DC.BIAS
MTZJ39
DC.BIAS
2SC4793
VM.DRIVE.2
0.0047
500V
E
470
10V
10V
2.2
160V
:HT
0.1
200V
:PT
0.047
:PT
0.001
:PT
0.001
:PT
100
16V
16V
1SS119
TEMP-CORR
JW(5.0)
2SC2785
AMP
2SC2785
AMP
2SC2785
BUFFER
2SA1175
BUFFER
1k
47
1/2W
:FPRD
560
:FPRD
1k
330
1k
68
220
18k
180
3W
:RS
1k
:FPRD
18k
10k
560
1.5
:FPRD
JW(5)
120
47
:FPRD
22p
68
33
160V
0.047
200V
:PT
2SA1837
VM.DRIVE.1
1.5
:FPRD
330
16V
:HT
16V
:HT
120
820
8P
WHT
:S-MICRO
470
16V
16V
47
0.047
:PT
*
*
*
* LIMITTER
*
*
*
*
*
*
DRIVE
*
*
*
DRIVE
*
DRIVE
*
*
*
*
DC SHIFT
*
*
*
DRIVE
*
DC SHIFT
*
*
*
*
*
*
Q.P.-
Q.P.+
E
VM
NECK ASSY
QP
QP
VM
VM OUT
9V
E
N/S-
NC
N/S+
15V
N/S-
GND
N/S+
TO D BOARD
CN518
TO A BOARD
CN120
TO N/S COIL
TO D BOARD
CN1804
VM
(VM OUT)
+B
NC
QP-
QP+
E
B-SS6667<ME.>-VM.
C965
#
0.0022 50V
C966
#
0.0022 50V
C967
#
10 50V
C971
#
1 50V
C983
#
0.082 50V
CN962
#
4P WHT : S-MICRO
CN963
#
3P BLK : S-MICRO
D965
#
1SS119-25TD
D1831
#
1SS119-25TD
D1833
#
1SS119-25TD
Q1831
#
2SD773-T-34
Q1832
#
2SB733-T-34
Q1833
#
2SD773-T-34
Q1834
#
2SB733-T-34
R983
#
56k 1/4W
R984
#
82k 1/4W
R1831
#
1k 1/4W
R1832
#
1k 1/4W
R1833
#
1k 1/4W
R1834
#
1k 1/4W
R1835
#
15 1/2W : FPRD
R1836
#
10 1/4W : FPRD
R1837
#
1k 1/4W
R1838
#
1k 1/4W
R1839
#
1k 1/4W
R1840
#
1k 1/4W
R1841
#
15 1/2W : FPRD
R1842
#
10 1/4W : FPRD
KV-J25MF8J
KV-J29MF8J
VM BOARD
∗
MARK LIST
# Mark : not mounted
-VM BOARD-
VM OUT
VM
Schematic diagrams
?
C
2
boards
– 35 –
– 38 –
– 37 –
– 36 –
D
IC
IC601
C–5
IC602
E–3
IC603
E–5
IC1501
D–8
IC1800
G–7
IC2504
F–5
TRANSISTOR
Q600
D–5
Q601
E–3
Q602
E–2
Q603
G–1
Q803
F–3
Q1501
F–7
Q1502
H–4
Q1800
G–6
Q1802
H–5
Q1803
H–6
Q1804
G–2
Q1805
G–2
Q2502
F–10
Q2503
F–6
Q2591
D–10
Q2600
B–1
Q2601
B–6
DIODE
D601
D–5
D602
D–4
D603
D–5
D604
D–1
D605
G–10
D606
D–4
D608
D–2
D609
E–2
D611
E–1
D612
E–2
D614
E–3
D616
D–5
D617
C–5
D618
G–1
D619
G–10
D621
C–5
D633
E–2
D801
D–8
D803
F–4
D814
B–7
D815
C–8
D816
C–7
D824
G–8
D825
F–6
D1501
F–7
D1502
F–6
D1503
E–8
D1504
E–8
D1505
G–4
D1506
F–8
D1509
F–8
D1510
F–8
D1511
F–8
D1803
H–6
D1804
H–6
D1805
G–3
D1806
G–2
D1808
H–7
D2500
G–4
D2501
F–5
D2502
F–4
D2506
D–9
D2507
D–10
D2508
E–10
D2510
G–7
D2511
F–8
D2515
G–5
D2600
A–6
D2602
B-1
D2603
A–6
D2604
B–6
VARIABLE
RESISTOR
RESISTOR
RV1801
G–5
D BOARD
– D Board –
POWER SUPPLY, DEFLECTION
AC IN
F
1
H
3
CONTROL SW, INPUT TERMINAL
– H
3
Board –
– F
1
Board –
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