Sony KF-42SX300 / KF-42SX300K / KF-42SX300U Service Manual ▷ View online
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
- 45 -
~ C Board Schematic Diagram [ Scanrate, Backend, Digital Gamma, LCD Drivers ] Page 4/4 ~
ANALOG MUX/DEMUX
COLOUR DECODER & SCANRATE CONVERTER
B-#SSLE4A<...>-C..-42SX300
TO J BOARD
CN3806 & CN3807
10
16V
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
- 46 -
~ C Printed Wiring Board Conductor Side A ~
~ C Board Location Table (A Side) ~
C
I
2
0
0
2
Q
4
-
G
9
0
0
2
C
I
5
-
G
2
0
5
2
Q
3
-
G
1
1
0
2
C
I
4
-
G
4
0
5
2
Q
3
-
G
2
1
0
2
C
I
4
-
H
2
0
6
2
Q
7
-
E
1
0
5
2
C
I
5
-
F
4
0
6
2
Q
7
-
E
1
0
6
2
C
I
6
-
E
2
0
7
2
Q
7
-
D
1
0
7
2
C
I
8
-
F
4
0
7
2
Q
8
-
D
1
0
8
2
C
I
6
-
C
1
0
0
3
Q
5
-
J
3
0
0
3
C
I
5
-
H
2
0
0
3
Q
5
-
J
4
0
0
3
C
I
6
-
I
4
0
0
3
Q
4
-
H
5
0
0
3
C
I
5
-
H
1
0
1
3
Q
8
-
G
6
0
0
3
C
I
5
-
I
2
0
1
3
Q
8
-
G
7
0
0
3
C
I
7
-
H
0
0
0
4
Q
6
-
I
8
0
0
3
C
I
4
-
H
1
0
0
4
Q
6
-
I
1
0
1
3
C
I
7
-
H
2
0
0
4
Q
6
-
I
2
0
1
3
C
I
7
-
G
3
0
0
4
Q
7
-
J
3
0
1
3
C
I
6
-
G
4
0
0
4
Q
7
-
I
0
0
0
4
C
I
5
-
J
5
0
0
4
Q
7
-
J
3
0
0
4
C
I
8
-
J
9
0
0
4
Q
8
-
J
R
O
T
S
I
S
N
A
R
T
0
1
0
4
Q
8
-
J
1
0
0
2
Q
4
-
G
6
1
0
4
Q
8
-
J
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
- 47 -
~ C Printed Wiring Board Conductor Side B ~
~ C Board Location Table (B Side) ~
C
I
6
0
0
2
C
I
6
-
H
7
0
0
2
C
I
6
-
H
3
0
0
3
C
I
4
-
E
R
O
T
S
I
S
N
A
R
T
5
0
1
3
Q
5
-
C
6
0
0
4
Q
7
-
B
7
0
0
4
Q
7
-
B
8
0
0
4
Q
7
-
B
1
1
0
4
Q
7
-
B
2
1
0
4
Q
7
-
B
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
- 48 -
~ J Board Schematic Diagram [ AV Switch ] ~
20us/div
20us/div
20us/div
1.1Vp-p (H)
1.1Vp-p (H)
TP1
TP2
TP3
2.3Vp-p (H)
~ J Board Waveforms ~
0.022
C2804
470k
R2808
C2810
35V
47
D2800
UDZS-TE17-9.1B
R2800
330
R2804
220
0.001
C2801
D2801
UDZS-TE17-9.1B
50V
1000p
C2805
1/10W
470k
R2809
R2801
1k
D2802
VARISTOR CHIP
25V
0.022
C2806
R2806
220
C2811
35V
47
470k
R2810
R2802
330
C2826
35V
47
R2828
CHIP
220
1/10W
470k
R2832
D2804
VARISTOR CHIP
XX
C2820
R2824
330
1/10W
D2806
VARISTOR CHIP
R2826
330
R2830
CHIP
220
1/10W
470k
R2834
C2827
35V
47
XX
C2822
470k
R2846
R2838
330
1/10W
D2810
VARISTOR CHIP
25V
0.022
C2834
R2842
220
R2840
220
1/10W
0.022
C2832
D2808
VARISTOR CHIP
1/10W
470k
R2844
R2836
330
1/10W
0.001
C2803
1/10W
470k
R2811
D2803
UDZS-TE17-9.1B
R2803
1k
50V
1000p
C2807
0.001
C2817
1/10W
470k
R2833
R2825
1k
50V
1000p
C2821
D2805
UDZS-TE17-9.1B
R2827
1k
470k
R2835
D2807
UDZS-TE17-9.1B
1000p
C2823
0.001
C2819
0.001
C2829
R2837
1/10W
1k
50V
1000p
C2833
1/10W
470k
R2845
D2809
UDZS-TE17-9.1B
D2811
UDZS-TE17-9.1B
1000p
C2835
1/10W
470k
R2847
0.001
C2831
R2839
1k
75
R3800
1/10W
D3802
UDZS-5.6B
100
R3807
1/10W
XX
C3800
D3807
UDZS-5.6B
XX
C3804
100
R3814
1/10W
75
R3813
1/10W
XX
C3801
100
R3808
1/10W
75
R3801
1/10W
D3810
UDZS-5.6B
75
R3815
1/10W
XX
C3805
100
R3821
1/10W
XX
C3802
100
R3809
1/10W
75
R3802
1/10W
D3804
UDZS-5.6B
100
R3822
1/10W
XX
C3806
D3811
UDZS-5.6B
75
R3816
1/10W
75
R3803
1/10W
D3805
UDZS-5.6B
100
R3810
1/10W
XX
C3803
D3812
UDZS-5.6B
75
R3817
1/10W
XX
C3807
100
R3823
1/10W
75
R3804
1/10W
UDZS-5.6B
D3806
100
R3812
1/10W
100
R3825
1/10W
UDZS-5.6B
D3813
75
R3818
1/10W
75
R3829
1/10W
UDZS-5.6B
D3819
100
R3835
1/10W
UDZS-5.6B
D3801
75
R3811
1/10W
UDZS-5.6B
D3809
75
R3824
1/10W
UDZS-5.6B
D3815
75
R3834
1/10W
10V
1
C2836
10V
1
C2808
10V
1
C2809
10V
1
C2824
C2825
1
10V
C2839
35V
47
C2838
35V
47
10V
1
C2837
D3800
UDZSTE-1713B
1/10W
100
R3805
XX
R3806
1/10W
100
R3819
XX
R3820
D3808
UDZSTE-1713B
XX
R3833
D3814
UDZSTE-1713B
1/10W
100
R3830
C0800
XX
1/10W
100
R802
UDZS-5.6B
D800
1/10W
75
R3828
1/10W
100
R3836
UDZS-5.6B
D3818
1/10W
75
R3826
100
R3831
1/10W
75
R3827
100
R3832
C2840
XX
C2842
XX
D2812
UDZS-TE17-9.1B
C2841
XX
C2843
XX
D2813
UDZS-TE17-9.1B
UDZS-TE17-9.1B
R3838
CHIP
0
XX
C3823
25V
0.1
C3821
0.1
C3822
1/10W
68k
R3841
10
C2859
50V
35V
47
C3810
0.1
C3824
25V
0.1
C3834
16V
0.1
C3820
0
R3847
CHIP
25V
0.1
C2858
SDA
16V
0.1
C3808
10V
1
C2855
10V
1
C2856
25V
0.1
C3832
100
R0801
CHIP
25V
0.1
C3826
XX
R3846
100
R0800
CHIP
9V
10
C3827
50V
1/10W
39k
R3843
25V
0.1
C3816
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
53
54
55
56
57
58
59
60
61
62
63
64
IC3800
CXA2149AQ-TL
AV SWITCH
REXT
LAST RF
RGD4
RGD3
LDO
RGD2
RGD1
LD1
AV2 OUT CVBS
TRAP1
Y_MAIN
VCC
C_MAIN
SCL
SDA
ADR
MUTE
MODE1
MODE2
MODE3
AVCC
ABIAS
AV2 OUT L/SPEAKER L
AV2 OUT R/SPEAKER R
ANALOG RF L
FRONT L
AV3 IN L
AV2 IN L
AV1 IN L
DIGITAL RF L
AGND
ANALOG RF R
FRONT R
AV3 IN R
AV2 IN R
AV1 IN R
DIGITAL RF R
AV1 OUT R
AV1 OUT L
AV3 OUT R
AV3 OUT L
DGND
AV3 OUT CVBS
DVCC
Y SLAVE
TRAP2
C SLAVE
GND
FRONT C
GND
AV3 IN C
AV2 IN C
TRAP3
FRONT Y
VBIAS
AV3 IN Y
VGND
AV2 IN Y
VCC
AV1 IN CVBS
TC1
DIGITAL RF
TC2
ANALOG RF
68k
R3839
9V
SCL
16V
0.1
C3825
L3811
1uH
Q2804
MSD601-RST1
R2850
1/10W
10k
R2848
1/10W
1k
9V
L3812
1uH
Q2802
MSD601-RST1
R2812
1/10W
220
R2817
1/10W
1k
R2821
1/10W
22k
R2820
1/10W
22k
C2815
25V
0.1
Q2803
MSD601-RST1
R2822
1/10W
22k
R2813
1/10W
220
R2819
1/10W
1k
R2823
1/10W
22k
16V
0.1
C3819
16V
0.1
C3818
16V
0.1
C3817
16V
0.1
C3809
C2814
25V
0.1
R2849
XX
C2857
50V
47p
SCL
SDA
AC-ON/OFF
AC-ON/OFF
9V
35V
47
C2860
L2802
1uH
21P
CN3801
1
RIGHT OUT
2
RIGHT IN
3
LEFT OUT
4
GND
5
GND
6
LEFT IN
7
BLUE IN
8
MODE
9
GND
10
NC
11
GREEN IN
12
NC
13
GND
14
GND
15
RED IN
16
BLANKING
17
GND
18
GND
19
VIDEO OUT
20
VIDEO IN
21
GND
21P
CN3802
1
RIGHT OUT
2
RIGHT IN
3
LEFT OUT
4
GND
5
GND
6
LEFT IN
7
BLUE IN
8
MODE
9
GND
10
AV LINK
11
GREEN IN
12
NC
13
GND
14
GND
15
RED IN
16
BLANKING
17
GND
18
GND
19
VIDEO OUT
20
VIDEO IN
21
GND
21P
CN3803
1
RIGHT OUT
2
RIGHT IN
3
LEFT OUT
4
GND
5
GND
6
LEFT IN
7
NC
8
MODE
9
GND
10
NC
11
NC
12
NC
13
GND
14
GND
15
C IN
16
NC
17
GND
18
GND
19
VIDEO OUT
20
VIDEO IN
21
GND
C3814
XX
C3828
XX
9V
C3841
0.1
C3836
35V
47
9V-AUDIO
9V-AUDIO
6.3V
1
C2812
6.3V
1
C2813
R3852
2.2k
25V
C3842
0.1
R3856
2.2k
C3843
0.1
25V
F
C3844
0.1
R3859
2.2k
35V
C3845
47
L3814
1uH
9V
MSD601-RST1
Q3856
MSD601-RST1
Q3857
MSD601-RST1
Q3858
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
CN3804
WHT
35P
CVBS DIGITAL RF
GND1
CVBS/Y MAIN
C MAIN
GND 2
CVBS/Y SLAVE
C SLAVE
GND 3
BLUE 1
GREEN 1
RED 1
FS 1
GND 4
GREEN 2
BLUE2
BLK2
RED 2
GND5
L DIGITAL RF
R SPEAKER/HP
GND6
L SPEAKER/HP
R DIGITAL RF
GND7
L ANALOG RF
R ANALOG RF
+9VA
GND8
AV LINK
AC-ON/OFF
+5VA
SDA
SCL
GND9
CVBS ANALOG RF
XX
JR2801
XX
JR2802
XX
JR2809
XX
JR2810
XX
JR2803
XX
JR2812
XX
JR2804
XX
JR2811
XX
JR2815
XX
JR2805
XX
JR2814
XX
JR2807
XX
JR2806
XX
JR2808
XX
JR2813
CHIP
0
JR3808
XX
L3808
CHIP
0
JR3809
XX
L3809
CHIP
0
JR3810
XX
L3810
0
JR2817
XX
L2801
0
JR2818
XX
L2800
UDZS-5.6B
D3816
UDZS-5.6B
D3817
D3803
UDZS-5.6B
CHIP
0
R3861
1
2
3
4
5
6
7
8
9
10
WHT
10P
CN3805
GND
FB2
GND
FB1
GND
RED-1
GND
GREEN-1
GND
BLUE-1
1
2
3
4
5
6
7
8
WHT
8P
CN3806
GND
RED-2
GND
GREEN2
GND
BLUE-2
GND
CVBS/Y MAIN
1
2
3
4
5
6
WHT
6P
CN3807
GND
C-MAIN
GND
CVBS/Y SLAVE
GND
C-SLAVE
35V
47
C3846
35V
47
C3847
35V
47
C3848
1/10W
47k
R3862
47k
R3863
1/10W
47k
R3864
22k
R3865
1/10W
22k
R3866
22k
R3867
XX
C3850
XX
L3815
+5VA
SDA_PC
87
6
5
4
3
2
1
ST24FC21M6TR
IC3801
1/10W
100k
R3870
SCL_PC
1/10W
15k
R3868
0uH
FB001
R_PC
+5VA
1/10W
47
R3871
B_PC
V_PC
1/10W
15k
R3869
MSB709-RT1
Q3859
1/10W
220
R3872
H_PC
V_PC
1/10W
47
R3876
SDA_PC
16V
0.1
C3849
1k
R3873
SCL_PC
CHIP
0
R3874
G_PC
1/10W
47
R3875
1/10W
68
R3879
G_PC
R_PC
+5VA
MSB709-RT1
Q3860
XX
C3851
CHIP
0
R3889
XX
R3886
XX
R3882
+5VA
XX
C3853
1/10W
82
R3884
1/10W
82
R3880
R3877
180
CHIP
0
R3890
V_PC
XX
R3878
XX
C3852
+5VA
MSB709-RT1
Q3861
B_PC
1/10W
68
R3887
H_PC
1/10W
R3881
180
1/10W
82
R3888
1/10W
68
R3883
R3885
180
MSB709-RT1
Q3862
C3856
XX
Q3863
MSD601-RST1
XX
R3892
1/10W
470
R3893
1
2
3
4
5
6
7
8
9
10
RED
10P
CN3809
B_PC
GND
G_PC
GND
R_PC
GND
V_PC
GND
H_PC
GND
CHIP
0
R3894
16V
0.1
C3857
16V
0.1
C3858
XX
C3859
16V
0.1
C3860
16V
0.1
C3861
XX
C3862
1/10W
3.3k
R3895
1/10W
3.3k
R3896
0
R2851
CHIP
0
R2852
CHIP
0
R2853
0
R2854
CHIP
0
R2855
CHIP
0
R2856
1
2
3
4
5
6
7
8
9
10
11
12
WHT
12P
CN3800
Y
GND
C
GND
CVBS
GND
L
GND
R
GND
PCL
PCR
J2800
VD2800
VD2801
15P
CN3808
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0.47uH
L3816
50V
68PF
C3863
UDZS-TE17-9.1B
D3821
UDZS-TE17-9.1B
D3820
50V
100p
C3866
100p
C3867
50V
100p
C3868
UDZS-5.6B
D3827
UDZS-5.6B
D3828
UDZS-5.6B
D3829
UDZS-5.6B
D3822
UDZS-5.6B
D3823
UDZS-5.6B
D3824
UDZS-5.6B
D3825
UDZS-5.6B
D3826
0uH
FB3800
CHIP
0
R2877
0
R2878
CHIP
0
R2879
0
R2880
0
R2881
0
R2882
UDZS-TE17-9.1B
D2830
UDZS-TE17-9.1B
D2832
UDZS-TE17-9.1B
D2833
UDZS-TE17-9.1B
D2834
UDZS-TE17-9.1B
D2835
UDZS-TE17-9.1B
D2831
10V
1
B
C3864
10V
1
B
C3865
SC2-OUT-R
SC2-OUT-L
SC3-OUT-R
SC3-OUT-L
SC1-IN-R
SC1-IN-L
SC2-IN-R
SC2-IN-L
SC3-IN-L
SC3-IN-R
V-OUT-1B
V-IN-1
V-OUT-2B
V-OUT-3B
V-IN-3
C-FRONT
Y/CVBS-FRONT
SC1-OUT-L
MODE1
MODE2
AV-LINK
MODE3
C-IN-3
Y/CVBS-FRONT
C-FRONT
SC3-OUT-L
SC3-OUT-R
SC1-OUT-L
SPEAKER-R
SPEAKER-L
V-IN-3
V-IN-2
V-IN-1
SPEAKER-R
SPEAKER-L
SC2-OUT-R
SC2-OUT-L
C-IN-3
V-OUT-3S
V-DIGITALRF
CVBS/YMAIN
C-MAIN
CVBS/YSLAVE
C-SLAVE
BLUE-1
GREEN-1
RED-1
BLK1
GREEN-2
BLUE-2
BLK2
RED-2
AV-LINK
L-DIGITALRF
SPEAKER-L
R-DIGITALRF
R-ANALOGRF
SC1-IN-R
SC2-IN-R
SC3-IN-R
FRONT-R
CVBS/YSLAVE
C-SLAVE
R-ANALOGRF
SPEAKER-R
SC1-IN-L
SC2-IN-L
SC3-IN-L
FRONT-L
V-ANALOGRF
V-DIGITALRF
C-MAIN
L-ANALOGRF
L-ANALOGRF
SC1-OUT-R
SC1-OUT-R
GREEN-1
RED-1
BLK1
GREEN-2
RED-2
BLK2
BLUE-2
MODE3
MODE2
MODE1
V-OUT-2S
V-OUT-1S
V-OUT-3S
V-OUT-2B
V-OUT-1B
V-OUT-3B
BLUE-1
V-IN-2
V-OUT-1S
BLK2
BLK1
RED-1
GREEN-1
BLUE-1
RED-2
GREEN-2
BLUE-2
CVBS/YMAIN
C-MAIN
CVBS/YSLAVE
C-SLAVE
V-OUT-2S
R-DIGITALRF
L-DIGITALRF
CVBS/YMAIN
V-ANALOGRF
FRONT-L
FRONT-R
AV1
AV2
J
J..-42SX300
TO H3 BOARD
CN4303
PC INTERFACE
TO C BOARD
CN3009
TO C BOARD
CN3006
TO C BOARD
CN3005
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
A/V SWITCH
TP 1
TP 2
TP 3
TO A BOARD
CN2002
TO C BOARD
CN3005
EEPROM
12 I2 BUS
TO A BOARD
CN5000
Click on the first or last page to see other KF-42SX300 / KF-42SX300K / KF-42SX300U service manuals if exist.