Mono Carrier: A/V Source Switching (A10) - Philips L01.2A AB Service Manual

Circuit Diagrams and PWB Layouts
Mono Carrier: A/V Source Switching
1 2
A10 AUDIO/VIDEO SOURCE SWITCHING
3801
+6V8
+8V
A 220R
From Micronas
SC2_CTRL
A9-50
SEL-MAIN-FRNT-RR
A7-12
From MicroP
B
From Front/Rear I/O
LFRONT-IN
A12-31
*
L1-IN
A13-32
A14-32
C
L2-IN
0V
A13-52
0V
A14-52
2V4
2803
RFRONT-IN
1V8
A12-53
100n
R1-IN
D
0V 12
A13-54
A14-54
0V 14
R2-IN 2V4 15
A13-55
A14-55
11
1V7
From Micronas
SC1_LOUT
A9-51
SC1_ROUT
E
A9-49
Stereo Scart1 Out (RF Mode always)
L1-OUT 4805
A14-56
R1-OUT 9801
A14-57
1V6
F
Mono Scart1 out
(RF Mode always)
QSS_AM_DEM_OUT
A5-42
3V8
1V6
G
CVBSFRONT-IN
0V
A12-58
Y_CVBS-IN
0V
A13-59
A14-59
H
* *
1 2
L01.2A AB 7.
3 4 5
+6V8
16 9 10
VDD
MSB LSB
LOGIC
7801
+6V8
HEF4052BT
3803
5V8
100K
LL 7803
1
2V4
BC847B
5
LH H
2804
4815
1V7
HL L 3 2V4 220n
2
4
HH
+6V8
LL
3806
5V8
LH H 100K
7804
2V4
13 2V4
HL L BC847B
4816
1V7
2805
HH
220n
VSS VEE
8 7 6
+6V8
7802-A 16
Vdd 5V
3V8
HEF4053BT
Only Europe
12 Y0 S 11
(Scart2 Out)
1V6
L2-OUT
13 Y1 Z 14
Vss Vee E
8 7 6
16
7802-B
Vdd 5V
HEF4053BT
2 Y0 S 10
1V6
R2-OUT
1 Y1 Z 15
Vss Vee E
8 7 6
16
7802-C
Vdd 5V
HEF4053BT
5 Y0 9
S
SY_CVBS-IN
3 Y1 4
Z 0V
Vss Vee E
8 7 6
3 4 5
EN 27
6 7
FOR EUROPE
ITEM
FOR AP/LATAM/NAFTA
ITEM 1x Rear Video In With Front or
4807
4808
7802
To Micronas/BTSC/UOC
SC1_RIN
A9-48
SC1_LIN
A9-47
Monitor Out/AV Out
*
L-OUT
4801
* A13-60
4802
A14-60
*
R-OUT
4803
* A13-61
4804
A14-61
A14-62
A14-63
A5-37
6 7
8 9 10
1x Scart With Front / 2x Scart With Front / 2x Scart W/O Front /
Side Video Side Video Side Video
x
3809 150R 150R
JUMPER x x
4807
4808 x x JUMPER
1x Rear Video In With Front Or 2x Rear Video In W/O
Side Video With SVHS / 2x Rear Side Video W/O SVHS / 1x Front Or Side Video
Video With Front Or Side Video Front Or Sideo Video IN
x JUMPER
x x JUMPER
Y x
8 9 10
11
2801 B4
2802 F4
2803 C2
2804 C5
2805 E5
3801 A2
3802 A2
A
3803 C4
3804 D4
No Video Input
3805 D4
x x 3806 D4
x
3807 E4
x x
3808 E4
3809 H2
4801 C6
4802 C6
4803 E6
4804 E6
B
4805 E2
4806 F1
4807 H2
4808 H3
4809 B2
4815 C4
4816 E4
7801 C3
7802-A F3
7802-B F3
7802-C G3
7803 C5
C
7804 D5
9801 F2
D
E
F
G
H
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