JAMO DVR 50 Service Manual page 33

A
1
Vcc3V3
U21A
14
SCT-169 1K
2 3
7
74LCX125
U21B
14
SCT-ENB 1K
5 6
7
74LCX125
1K
U21C
2
14
VGAEN# VGA-ENB
12 11
7
74LCX125
U21D
14
9 8
7
74LCX125
SCT-ENB
22pF C73
3
L5
TV_V/R/C 1.8uH
22pF C74
L7
TV _Y/G/Y 1.8uH
22pF C75
L11
TV_U/B/CVBS 1.8uH
22pF C76
L12
TV_CVBS 1.8uH
4
No Stuff for Single termination
Vcc3V3
5
B
Vcc12V Vcc12V
R52
3K9
Q10
2N3904
1
R40 R51
4K7 1K R45
Q8 Q9
R42 R53
1 1
4K7
2N3904 2N3904
Vcc3V3
Q11
R43
1
2N3906
47 R48
R44
1K
Vcc5V
U39
16
VDD
C-Pr
4 2
DA S1A
3
S2A
7 5
DB S1B
6
S2B
VBS-Y
9 11
DC S1C
10
S2C
12 14
DD S1D
Pb
13
S2D
15
EN
8 1
GND IN1/IN2
PI5V330
CVBS_out
C-Pr R80 Not Mounted
R81 Not Mounted
VBS-Y R82 Not Mounted
R83 Not Mounted
Pb R84 Not Mounted
R200 Not Mounted
S-Vid/Pb
Composite
S-Vid-C/Pr
S-Vid-Y/Y
SCART-CVBS
SCART-R
SCART-G
SCART-B
3 3 3 3 3 3 3 3
C D
SCT-V8
SCART-V8
Vcc3V3
SCT-V16
SCART-V16
Q22
1
Q23
CVBS_out
1
Q24
1
2N3906
2N3904
SCART-R
SCART-G
SCART-B
VGA-ENB
Vcc5V
U41
HDTV/S-VIDEO
16
VDD
TV_V/R/C
4 2
DA S1A
3
S2A
T V_Y/G/Y
7 5
S-Vid-C/Pr DB S1B
6
S2B
TV_U/B/CVBS
9 11
S-Vid-Y/Y
DC S1C
10
S2C
12 14
S-Vid/Pb
DD S1D
13
S2D
15
EN
8 1
GND IN1/IN2
PI5V330
Optional By-pass
Mux U39
Alternate
SCART-R
S-Vid-C/Pr
SCART-G Q16 BSS138
S-Vid-Y/Y TV_V/R/C
3 2
SCART-B
S-Vid/Pb Not Mounted
Q17 BSS138
T V_Y/G/Y
3 2
Not Mounted
Q18 BSS138
TV_U/B/CVBS
3 2
Vcc12V
Not Mounted
4K7 R69
Q19
VGA-ENB 1K R35 Optional By-pass filter
1
for VGA output
2N3904
Schematic diagram - MPEG board 8/16
E
Vcc5V
U40B
7
GND
H S YNC
5 6
H S YNC B3 O3
14
VDD
4
A3
74ACT125
For VGA output
U40A
7
GND
VSYNC
2 3
VSYNC
B3 O3
14
VDD
VGA-ENB
1
A3
74ACT125
2N3904
Composite
SCART-CVBS
SCART-CVBS
SCART-R
SCART-R
SCART-G
SCART-G
SCART-B
SCART-B
C-Pr
VBS-Y
Sigma Designs
Pb 355 FairView Way
Milpitas CA 95035
Components having special characteristics or critical for safety are
Reference
designs
identifi ed by mark and must be replaced with components
Title
specifi ed by the manufacturer.
Video Out
Size Document Number
B
Date:
Schematic diagram is subject to change without notice.
F
CONFIDENTIAL
Vcc5V
VGAHS 22 R36
SCART-CLK
CLKOUT
VGAVS 22 R38
SCART-DATA
DATA
3 3
CONFIDENTIAL
DVD Receiver - EM8500
R e v
23-000703-01 E6
Tuesday, July 15, 2003 Sheet 8 of 16
33