Schematic Diagram
7-10
Samsung Electronics
RS232 JACK USE DEBUG
RS232JACK USE RS232 CONTROL
RS232-JACK CONNECT MICOM
ACTION
RS232-JACK CONNECT X260
L
H
L
H
HIGH/LOW
SW_9P_MICOM
SW_DEBUG_RS232
<=> WT MICOM
<=> RS232C JACK
UART PORT FOR SVC & DEBUGGING
IC203 DEL OPTION
R805
R804
R806
R803
9
8
7
6
5
4
3
20
2
19
18
17
16
15
14
13
12
11
10
1
IC801
Q801
R808
R807
BD801
C801
R801
R802
BD802
C802
Q802
R814
R813
C803
R812
R811
C804
9
8
7
6
5
4
3
2
16
15
14
13
12
11
10
1
IC803
C808
C807
C806
C805
R809
R810
BD803
9
8
7
6
5
4
3
20
2
19
18
17
16
15
14
13
12
11
10
1
IC802
ADM3232EARUZ-REEL
74VHC244MTCX
74VHC244MTCX
RX_CPU
KRC104S
KRC104S
1KOHM
1KOHM
100OHM
TX_RS232
100OHM
RX_DEBUG
100OHM
RX_RS232
100OHM
TX_DEBUG
100OHM
UART_RX
100OHM
UART_TX
0OHM
0OHM
10KOHM 10KOHM
10KOHM 10KOHM
10UF
10V
100NF
25V
100NF
25V
100NF
25V
100NF
25V
100NF
25V
100NF
25V
100NF
25V
TX_CPU
TDB_MICOM
RDB_MICOM
SW_9PIN_MICOM
A3.3V
A3.3V
A3.3V
SW_DEBUG_RS232
/OE1
O5
O1
O0
I5
VCC
I3
O6
O7
GND
/OE2
I2
I7
I1
I6
O2
O3
O4
I0
I4
E
B
C
E
B
C
C1-
C2+
C1+
V+
R1OUT
T1OUT
R1IN
T1IN
C2-
V-
R2OUT
T2IN
T2OUT
R2IN
VCC
GND
/OE1
O5
O1
O0
I5
VCC
I3
O6
O7
GND
/OE2
I2
I7
I1
I6
O2
O3
O4
I0
I4
7-3-8 Main Board-8
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