Read Sony KV-25C5A Service Manual online
29
30
31
32
S1 Board
C Board
VM Board
H1 Board
A Board
5-2. CIRCUIT BOARD LOCATION
5-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
PRINTED WIRING BOARDS
Note :
•
All capacitors are in µF unless otherwise noted.
•
pF : µµF 50WV or less are not indicated except for
electrolytic types.
electrolytic types.
•
Indication of resistance, which does not have one for
rating electrical power, is as follows.
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
Electrical power rating : 1/4W
•
Chip resistors are 1/10W
•
All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
k = 1000 ohms, M = 1000,000 ohms
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
characteristic curve B, unless otherwise noted.
•
All voltages are in Volts.
•
Readings are taken with a 10Mohm digital mutimeter.
•
Readings are taken with a color bar input signal.
•
Voltage variations may be noted due to normal production
tolerences.
tolerences.
•
: B + bus.
•
: B - bus.
•
: RF signal path.
•
: earth - ground.
•
: earth - chassis.
Reference Information
Note: The components identified by shading
and marked
are critical for safety
Replace only with the part numbers
specified in the parts list.
specified in the parts list.
Note:
Les composants identifies par une trame et
par une marque sont d’une importance
critique pour le securite. Ne les remplacer
que par des pieces de numero specifie.
critique pour le securite. Ne les remplacer
que par des pieces de numero specifie.
RESISTOR
RN
: METAL FILM
RC
: SOLID
FPRD
: NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS
: NON FLAMMABLE METAL OXIDE
RB
: NON FLAMMABLE CEMENT
RW
: NON FLAMMABLE 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
£
£
6
5
3
2
-
+
-
+
7
1
+9V
+9V
VM AMP
Q1701, 1702,
1708, 1709
VM AMP
BUFFER
BUFFER
Q1704
BUFFER
Q1840,
1841
6
5
2
-
+
-
+
7
1
IC1902
DF COMPARATOR
3
+9V
15V PULSE
7
6
5
1
V PULSE
NS CORRECT
VM
2
4
6
8
T1901
1
DF
CN1809
TO A BOARD
CN503
TO A BOARD
CN505
3
1
CN1801
QP
QP
VM
NECK ASSY
QP-
QP+
GND
VM
TO ROTATION
COIL
CN1803
IC1901
COMPARATOR
ROT +
ROT -
VM AMP, QP, DYNAMIC FOCUS
ROTATION AMP
VM ( )
CN1705
VM OUT
Q1703,1704
TO A BOARD
CN509
3
2
5
6
+
-
+
-
1
7
IC1801
ROTATION
AMP
G DRIVE, BKG
Q705, 706
B DRIVE, BKG
Q708, 709
R OUT
Q704
G OUT
Q 707
B OUT
Q710
1
H2
C
(RGB OUT)
H1
RV702
H STAT
PICTURE TUBE
6
CN703
R
G
B
CUT OFF
H2
CN701
TO A BOARD
CN502
TO A BOARD
T511 (FBT)
H
R
C
V
C
V
2
+200V
G2
R
G
B
H
V
V
RCV
G2
G
4
G
2
G2
(1000V)
RV701
SCREEN
D711
PROTECT
TO A BOARD
CN504
1
2
3
6
R DRIVE, BKG
Q702, 703
S1
SCL
SDA
SIF
MONO
R1
L1
R2
L2
TVR OUT
TVL OUT
R AUDIO OUT
L AUDIO
OUT
TO A BOARD
CN101
(STEREO DECODER)
IC1101
STEREO DECODER
5
1 2
2 9
3 3
3 4
3 6
3 7
4
SCL
SDA
SIFI
MONO IN
SCART 1 IN
R
R
SCART 1 IN
L
L
SCART 2 IN
R
R
SCART 2 IN
L
L
TVR OUT
TVL OUT
AUDIO R OUT
AUDIO L OUT
4 7
4 8
6 0
6 1
SCART 1 OUT
SCART 1 OUT
MAIN OUT R
MAIN OUT L
TVR OUT
TVL OUT
AUDIO R OUT
AUDIO L OUT
1 7
1 8
XTAI OUT
XTAI IN
CN1101
1
2
5
6
9
10
11
12
14
15
16
17
TO A BOARD
CN406
TO A BOARD
CN208
TO A BOARD
CN007
F U N C T I O N
S W I T C H
S 9 0 0 - S 9 0 2
R E M O T E
C O N T R O L
R E C E I V E R
I C 9 0 0
V I D E O
H E A D P H O N E S
P O W E R
R
L
CN907
KEY
RESP
SIRCS
AUDIO L
OUT
CN908
AUDIO L IN
AUDIO R IN
AUDIO R
OUT
CN906
AUDIO L
AUDIO R
Y/CVBS
C
2
1
5
4
2
4
6
8
CN603
S601
CN604
TO A BOARD
CN606
J900
1
2
4
3
Y/C
CN900
1
2
2
1
2
1
4
6
7
H1( )
AUDIO/VIDEO IN, HEADPHONE
JACK, AUDIO OUT JACK, SIRCS
RECEIVER, FUNCTION SWITCH
RECEIVER, FUNCTION SWITCH
5-1 BLOCK DIAGRAMS (2)
29” only
29” models only
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