Samsung DRX100 Service Manual page 91

Digital satellite receiver
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5VD
R501
47
L1
10uH
C508
4.7U/m
C502
+
104
C503
18P
IR500
3
DATA
2
VCC
1
GND
R528
12K
TSOP1236
R511
R512
R513
R514
1K
1K
1K
1K
S501
S502
S503
S504
TSW
TSW
TSW
TSW
UP
LEFT
DOWN
RIGHT
R518
R519
R520
R521
1K
1K
1K
1K
S506
S507
S508
S509
NC
TSW
TSW
TSW
GUIDE
BACKUP
INFO
S-00-005(96.03.27)
SERVICE MANUAL
5VD
D500
R500
RLS4148
10K
C501
+
10U/m
X500
R502
8MHz
10M
R523
C504
100
18P
R507
0
5VD
R510
3K
C505
104
S505
TSW
ENTER
5VD
R516
3K
C506
S510
104
TSW
PWR
REV.1
Date of Origin
5VD
U500
1
28
RESET
5VD
2
27
XTALIN
0VD
3
26
XTALOUT
TEST
4
25
PB-7
PA-0
5
24
PB-6
PA-1
6
23
PB-5
PA-2
7
22
PB-4
PA-3
8
21
PB-3
PA-4/SCL
9
20
PB-2
PA-5
10
19
PB-1
PA-6/SDA
11
18
PB-0
PA-7
12
17
PC-5
PC-0
13
16
PC-4
PC-1
14
15
PC-3
PC-2
ST72251
TP502
R524
R525
R526
2.7K
2.7K
2.7K
R527 NC
SAMSUNG ELECTRO-MECHANICS CO., LTD
Title
FRONT
Size Document Number
A
Date:
Friday, October 16, 1998
PAGE REV.
51-L-DSR004
Document No
98-10-21
Date of REV
R515
C500
1K
104
R503
NC
R504
150
on;Green o ff;Red
TP500
R529
1K
KST2222AL
R506 150
R508
150
R509
150
R522
1K
5VD
SCL
SDA
MOD_IR_DATA
/MCU_RESET
MOD_SDA
FMCU_INT
MOD_SCL
9V_ON/OFF
SEMCO-BSKYB
Sheet
0
PAGE
5VD
LD500
NC
blue
LD501
LED2
R505
150
Q501
msg
LD502
YELLOW
Ir
LD503
RED
mail
LD504
GREEN
Q500
KST2907A
J501
1
C507
+
2
47U/m
3
4
5
6
7
8
9
10
W10
Rev
4.8
of
12
16
90/102

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