Philips MCD268 Service Manual page 24

DECODER BOARD - Circuit Diagram - 4
R 61
3 . 3K
L21
V _ G/Y C E 16 10u F / 08 05
2
R 65 1 . 8u H / S MD
160 1%
C 43 C 44 R 66
2 . 2K
47pF 47pF
R 67
75 1%
R 71
3 . 3K
L23
V _ B /U
C E 18 10u F / 08 05 2
R 73 1 . 8u H / S MD
160 1%
C 46 C 47 R 74
2 . 2K
47pF 47pF R 75
75 1%
+ 5 VV
R 78
3 . 3K
L24
V _ R /V C E 19 10u F / 08 05
2
R 79 1 . 8u H / S MD
160 1%
C 48 C 49 R 82
2 . 2K
47pF 47pF
R 84
75 1%
+ 5 VV
R 90
3 . 3K
C E 22
L2 5 1 . 8u H / S MD
100u F / 1 0V
V _ C VBS Q 14
2
2 N 3904
R 92 C E 72 10u F / 08 05
160 1%
C 51 C 52 R 93
2 . 2K
47pF 47pF
R 95
75 1%
9-4
+ 5 VV + 5 VV
C E 70 C E 71
AL C E 15 10u F / 16V
C B 50
10u F / 08 05 10u F / 08 05
0 . 1uF
D V D / M U TE
Q7
2 N 3904
R 64
G/Y
100K
C E 17
10u F / 16V
AR R 68
+ 5 VV
D V D / M U TE
C B 51
0 . 1uF
R 72
Q9
100K
2 N 3904
B /U
+ 5 VV
R 76
0R
C B 52
0 . 1uF
Q 10
2 N 3904
R 80
R /V 1M
M U T E _ C i r c u it
C B 53
0 . 1uF
ASP D IF
C VBS
R 60
L20 FB
2 . 2k D V D - L IN
R 62 C 42
2 Q6
O PEN 560P
2 N 3904
R 63
1K
FB
L22
2 . 2k D V D - R IN
R 69
Q8
2
O PEN
2 N 3904 C 45
560P
R 70
1K
+ 22V
R 77
NC
D1
1 N 4148 / S MD
1 2
+ C E 20
R 81
10K 100u F / 3 5V
D2
2
1 N 4148 / S MD Q 11
R 83 2 N 3904
Q 13
43K
2 N 3906
Q 12
2 1
2 N 3906
R 86
1 K / 0805 D3
SD33
R 85
1 N 4148 / S MD
10K
+ C E 21
10u F / 35V
R 87
D4 R 88
4 . 3 V / S MD 10K
33
A U D I O _ M U TE
C 50
R 91 100 C O A X I AL
R 94 0 . 1uF
100 C 53
330pF
9-4
C VBS
C VBS
R /V
R /V
B /U
B /U
G/Y
G/Y
VIDEO OUT
C O A X I AL
C O A X I AL
V _ C VBS
V _ C VBS
V _ R /V
V _ R /V
V _ B /U
V _ B /U
V _ G/Y
V _ G/Y
VIDEO I/F
ASP D IF
ASP D IF
AUDIO I/F
D V D / M U TE
D V D / M U TE
AL
AL
AR
AR
A U D I O _ M U TE
A U D I O _ M U TE
D V D - R IN
D V D - R IN
D V D - L IN
D V D - L IN
D V D / M U TE AUDIO I/F
3
R 89
10K