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SCART control signals
ENABLE_AV: 0 in when standby mode, 1 when on
(3V3 levels)
(RGB_STAT is supposed to be >1V when driving 75R)
16/9: 0 when 4:3 output, 1 when 16:9 output (3V3
levels)
0/6/12: 0V in standby, 6V when output is 16:9, 12V
when output is 4:3
+5V_VID
R801
1K0
0W125
0805
P811
ENABLE_AV
CONTROL
P810
16/9
AUDIO
VIDEO
+12VD
TR800
P812
MMUN2111LT1
SOT-23
P816
TR801
R807
MMUN2211LT1
SOT-23
4K7
0W125
0805
DGND
TR803
P815
BC849B
SOT-23
R809
R810
R806
P817
P818
6K8
330R
330R
0W125
0W125
0W125
0805
R808
0805
0805
10K
P814
0W125
0805
TR802
MMUN2211LT1
SOT-23
DGND
+5V_VID
TR804
BC849B
SOT-23
R812
P819
RGB_STAT
82R
R811
0W125
1K0
0805
0W125
0805
DGND
SCART_RIGHT
SCART_LEFT
C800
C801
47P
47P
100V
100V
R800
0805
0805
0R0
DGND
0W125
0805
SCART_BLUE
SCART_GREEN
SCART_RED
SCART_COMPOSITE
C802
C803
C804
C805
47P
47P
47P
47P
100V
100V
100V
100V
0805
0805
0805
0805
DGND
+12VD
D800
BAT54S
SOT-23
DGND
0/6/12
C806
100N
50V
0805
DGND
+5V_VID
D801
BAT54S
SOT-23
DGND
C807
100N
50V
0805
DGND
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9QR
SCART OUTPUT
SKT800
SCART_RIGHT
1
2
SCART_LEFT
3
SCART_AGND
4
5
6
SCART_BLUE
7
0/6/12
8
9
10
SCART_GREEN
11
12
13
14
SCART_RED
15
RGB_STAT
16
17
18
SCART_COMPOSITE
19
20
21
CHARM
CW
C813
R803
10N
100R
50V
0W125
0603
0805
C811
1N0 100V
0805
C812
1N0 100V
0805
DGND
EMC_GND
DV79 MAIN SCART OUTPUT
Filename:
L974C8.Sch
Notes:
04_E142
PG
23-09-04
04_E129
PG
24-08-04
ECO No.
INITIALS
DATE
Contact Engineer:
Peter Gaggs
Contact Tel:
(01223) 203270
Printed:
23-Sep-2004
Correct BOM error - R320 now fitted
1.1
Production release
1.0
DESCRIPTION OF CHANGE
ISSUE
L974C8
Sheet
8
of
11
A2
DRAWING NO.
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