Scaler Board: Rs232; [S-A15] - Philips QCS1.0S Service Manual

Circuit Diagrams and PWB Layouts

Scaler Board: RS232

5
SCALER BOARD:
S-A16
J2
TEKCON_1297_000_410_52_18P
G4 G2
Near to J2
14 5
18 9
13 4
17 8
L102 0R
12 3 2 1
16 7
L103 0R
11 2 2 1
15 6
10 1
G3 G1
D
D54 D55
EZJZ0V800AA/NC EZJZ0V800AA/NC
L104 0R
1 2
L105 0R 1 2
D56 D57
EZJZ0V800AA/NC EZJZ0V800AA/NC
C
TX1 R601
1
RX1 R695
1
R606
1
R608
1
R610
1
R612
1
R617
1
R618
1
TX2 R619
1
RX2 R696
1
R623
1
R625
1
B
R627
1
R629
1
S1
2
3
4
5
MTH315D138
S3
2
3
4
5
A
MTH315D138
5
QCS1.0S LA 7.
4
RS232
SP3243
R593 33 RXD_OUT RXD_OUT
2 1 9
T1OUT
TXD_IN
10
T2OUT
R594 33 TXD_OUT
2 1 11
T3OUT
TX2
19
R1OUT
RX1
18
R2OUT
17
R3OUT
16
R4OUT
15
R5OUT
20
R2OUTB
21
INVALID
R595 33 RXD_IN
1 2
R596 1 2 33 TXD_IN
MCUVCC
L107
KHB0805R121SA
C433 + C450
0.1uF
10uF/50V
U52
100 R602 100
2 7 6 1 2
1A 1B1
0R R603 100
2 9 5 1 2
2A 1B2
R604 100
4 1 2
1B3
100 R607 100
2 14 3 1 2
S0 1B4
100
2 2
S1
R609 100
10 1 2
2B1
0R R611 100
2 1 11 1 2
1OE 2B2
0R R613 22K
2 15 12 1 2
2OE 2B3
R614 100
13 1 2
2B4
PI5C3253 R605 1 NC 2
100
2
100
2
C434 U53
0.1uF
PI5C3253
100 R620 NC
2 7 6 1 2
1A 1B1
0R R621 100
2 9 5 1 2
2A 1B2
R622 100
4 1 2
1B3
100 R624 22K
2 14 3 1 2
S0 1B4
100
2 2
S1
R626 100
10 1 2
2B1
0R R628 100
2 1 11 1 2
1OE 2B2
0R R630 100
2 15 12 1 2
2OE 2B3
R631 22K
13 1 2
2B4
10 S2 10 S4
9 2 9 2
8 3 8 3
1 1 1
7 4 7 4
6 5 6 5
1 1
MTH315D138 MTH315D138
10 S6
9 2
8 3
1 1
7 4
6 5
1
MTH315D138
4
36
3
Control
I N-terminal O UT-terminal
Pins
MODE
U51
S1 S0 RXD TXD RXD TXD
RX2
14
T1IN
TX1
13
T2IN L L 0
Enable Enable Enable
12
T3IN
TXD_OUT
4
L H 1
R1IN
Enable Dis able Enabl e
RXD_IN
5
R2IN
6
R3IN
7
L
R4IN H 2
Enable Enable Enable
8
R5IN
0.47uF/10V
C427
28 2 1
NA
C1+ H X X X
H
24
C1-
C428 0.1uF
1 2 1
C2+
2
C2-
C429 0.47uF/10V
27 1 2
V+
3 C430 1 0.47uF/10V 2
V-
100 R597
23 2 1 MCUVCC
FORCEON
L106
22 2 1
FORCEOFF
100 R598 KHB0805R121SA
26
VCC
C449
R599 R600 C431 +
NC NC
0.1uF 10uF/50V
R615 1 0R 2
RXD
R616 0R
1 2
TXD
S1
S0
MCUVCC
MCUVCC 2,13,14
10 S5 10
9 2 9
8 3 8
1
7 4 7
6 5 6
1 1
MTH315D138
10 S7 10
9 2 9
8 3 8
1
7 4 7
6 5 6
1 1
MTH315D138
3
2
Dis able
Enabl e
Enable
X
2
1
S-A16
D
C
B
A
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