Sony KV-28DS65U Service Manual ▷ View online
49
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
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
Les composants identifiés par une trame et
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
Note :
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note :
C Board
D Board
VM Board
H Board
F1 Board
D1 Board
B Board
A1 Board
A Board
J Board
D2 Board
N Board
50
C
[PRINTED WIRING BOARD]
A
B
C
D
E
1
2
3
4
5
C
I
4
0
7
Q
1
-
D
5
0
7
D
1
-
D
3
1
7
D
2
-
C
1
0
7
C
I
3
-
B
5
0
7
Q
1
-
A
6
0
7
D
1
-
A
4
1
7
D
5
-
E
2
0
7
C
I
3
-
C
6
0
7
Q
2
-
D
7
0
7
D
2
-
A
5
1
7
D
2
-
B
3
0
7
C
I
2
-
E
E
D
O
I
D
8
0
7
D
2
-
C
6
1
7
D
5
-
E
R
O
T
S
I
S
N
A
R
T
1
0
7
D
1
-
D
9
0
7
D
2
-
A
1
2
7
D
5
-
A
1
0
7
Q
3
-
B
2
0
7
D
3
-
A
0
1
7
D
2
-
B
R
V
2
0
7
Q
2
-
D
3
0
7
D
3
-
C
1
1
7
D
2
-
C
1
0
7
V
R
5
-
B
3
0
7
Q
2
-
E
4
0
7
D
2
-
C
2
1
7
D
2
-
E
2
0
7
V
R
4
-
E
C
[ R,G,B OUT ]
51
52
4
140 Vp-p (2H)
120 Vp-p (2H)
5
5.0 Vp-p (2H)
1
4.5 Vp-p (2H)
2
25 Vp-p (2H)
7
4.5 Vp-p (2H)
3
130 Vp-p (2H)
6
C BO
ARD
W
A
VEFORMS
53
54
H
[ A
V3 AND HEADPHONE ]
D2
[ SOFT ST
AR
T CONTR
OL ]
H
[ PRINTED
WIRING BO
ARD ]
D2
[ PRINTED
WIRING BO
ARD ]
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