Sony KF-50SX300 / KF-50SX300K / KF-50SX300U / KF-60SX300 / KF-60SX300K / KF-60SX300U Service Manual ▷ View online
- 34 -
5-1. BLOCK DIAGRAMS (4)
IC3800
AUDIO/VIDEO SWITCH
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
BLUE IN
MODE
GREEN IN
RED IN
BLANKING
VIDEO OUT
VIDEO IN
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
BLUE IN
MODE
GREEN IN
RED IN
BLANKING
VIDEO OUT
VIDEO IN
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
MODE
C IN
VIDEO OUT
VIDEO IN
Y/CVBS-
FRONT
FRONT
C-FRONT
FRONT-L
2
9
11
13
14
15
17
18
19
20
23
24
25
26
27
28
29
32
33
34
35
36
38
39
40
41
43
45
47
49
51
54
56
58
60
62
64
BUFFER
AMP
Q3856
V-OUT-3S
BUFFER
AMP
Q3857
BUFFER
AMP
Q3858
BUFFER
AMP
Q2802
BUFFER
AMP
Q2803
V-OUT-2S
V-OUT-1S
SC2-OUT-L
SC2-OUT-R
SPEAKER L
CN3801
CN3802
CN3803
TO H3 BOARD
CN4303
AV3
AV2
AV1
V-OUT-1S
V-OUT-2S
CVBS/Y MAIN
C-MAIN
SCL
SDA
MUTE
MODE 1
MODE 2
MODE 3
SPEAKER-L
SPEAKER-R
L-ANALOG RF
FRONT-L
SC3 IN-L
SC2 IN-L
SC1 IN-L
FRONT-R
R-ANALOG RF
V-ANALOG RF
V-DIGITAL RF
V-IN-1
V-IN-2
V-IN-3
C-IN-3
Y/CVBS-FRONT
C-FRONT
C SLAVE
CVBS/Y SLAVE
V-OUT-35
SC3 OUT-L
SC3 OUT-R
SC1 OUT-L
SC1 OUT-R
SC2-IN-R
SC3-IN-R
SC1-IN-R
MUTE
SWITCH
Q2804
9V
AC ON-OFF
V-OUT-2B
V-OUT-3B
V-OUT-1B
SPEAKER R
CVBS DIGITAL RF
CVBS/Y MAIN
C-MAIN
C SLAVE
BLUE 1
CVBS/Y SLAVE
GREEN 1
RED 1
BLK 1 FS1
GREEN 2
BLUE 2
R SPEAKER/HP
L-DIGITAL RF
BLK 2
L SPEAKER/HP
RED 2
R-DIGITAL RF
R-ANALOG RF
AV LINK
L-ANALOG RF
SDA
SCL
CVBS/ANALOG RF
35
33
32
29
26
25
23
22
20
19
17
16
15
14
12
11
10
9
7
6
4
3
1
CN3804
LAST RF
AV3 IN R
AV2 OUT
CVBS Y MAIN
C MAIN
SCL
SDA
MUTE
MODE 1
MODE 2
MODE 3
AV2 OUT L/SPKR L
AV2 OUT L/SPKR R
ANALOG RF-L
FRONT L
AV3 IN-L
AV2 IN-L
AV1 IN-L
ANALOG RF-R
FRONT R
AV2 I R
AV1 IN R
AV1 OUT R
AV3 OUT R
AV3 OUT L
AV3 OUT CVBS
Y SLAVE
C SLAVE
FRONT C
AV3 IN C
FRONT Y
AV3 IN Y
AV2 IN Y
AV1 IN CVBS
DIGITAL RF
ANALOG RF
AV1 OUT L
J ( )
A/V SWITCH
1
2
3
6
7
8
11
15
16
19
20
1
2
3
6
7
8
11
15
16
19
20
1
2
3
6
8
15
19
20
1
3
5
7
BUFFER
Q3863
CN3800
J2800
FRONT-R
PCL
PCR
9
11
12
Q3859
8
5
6
7
SDA-PC
SCL-PC
Q3862
Q3860
Q3861
V-PC
H-PC
R-PC
G-PC
B-PC
5
12
15
14
13
1
2
3
IC3801
PC
INTERFACE
FB2
RED 2
C-MAIN
2
4
6
8
10
2
4
6
8
2
4
6
7
9
5
3
1
R-PC
G-PC
B-PC
H-PC
V-PC
CN3809
CN3807
CN3806
CN3805
CVBS/Y SLAVE
C SLAVE
CVBS/Y MAIN
BLUE 2
GREEN 2
RED 1
BLUE 1
GREEN 1
FB1
BLK 1
BLK 2
TO C BOARD
CN3006
TO C BOARD
CN3005
TO C BOARD
CN3005
TO C BOARD
CN3009
CN3808
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 :
CVM Board
A Board
S1 Board
VM
C
H
D1
A
J
A2
N
D
A1
D2
C
A
T
B
G
H2
H1
J
A
Power block
H3
C
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
- 35 -
~ A Board Schematic Diagram [ Tuner, Audio, Regulators ] Page 1/3 ~
HP OUT
1/3 TUNER, AUDIO, REGULATORS
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
- 36 -
TO H2 BOARD
CN4404
CN4404
TO H1 BOARD
CN4404
CN4404
~ A Board Schematic Diagram [ Tuner, Audio, Regulators ] Page 2/3 ~
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
- 37 -
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
~ A Board Schematic Diagram [ Tuner, Audio, Regulators ] Page 3/3 ~
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