Samsung SCX-1100 Service Manual page 106

4-2 OPE Circuit Diagram
1
A
B
C
D
E
1
Samsung Electronics
2 3
5V
R8
22K
D1
MMSD914T1
R3
200
/OPE_RST
CN2-2
C3
5V 5V
1000nF
GND5
R5
R6
22K
22K
OPE_TXD
CN2-1
OPE_RXD
CN2-3
R1
200
C6 C7
100pF 100pF
GND5 GND5
GND5
LCD_RS
CN1-4
LCD_RW
CN1-5
LCD_E
CN1-6
LCD_D0
CN1-7
LCD_D1
CN1-8
LCD_D2
CN1-9
LCD_D3
CN1-10
LCD_D4
CN1-11
LCD_D5
CN1-12
LCD_D6
CN1-13
LCD_D7
CN1-14
C8 C9 C10
22pF
22pF 22pF
GND5 GND5 GND5
D3 MMSD914T1
D2 MMSD914T1
5V 5V
R16
10K
3
CN1-3 OPE_POW
R17
680
2
CN1-2
GND5
C2
100nF
1
CN1-1
GND5 GND5
2 3
4 5
+5V
CN2-4
C13
C1
10uF
10uF
16V
16V
GND
CN2-5
GND5
5V
U1
R2
200
C5
100nF
GND5
R19 180K
C11
47pF
R25 1K
OSC1
C12 CSACS_7.37MHz
47pF
scroll/volume_down
5V
R7
22K
HT48R50
GND5
4 5
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6
5V
2
1 Q1
KSA1182-Y
3
OPE_POW
200
R18
R20
1.5K
5V
3
1 Q2
2SC2812L6-TA
2
R21
68K
GND5
2
Q3
1 LED1
KSA1182-Y SLS-NNGR202TS
3
GND5
ink
contrast
R9
22K
copy page
R10
paper
22K
zoomrete
R11
setup
22K
scroll/volume_up
R12
black copy
22K
color copy
R13
22K
special cancel
R14
22K
scan to enter
R22
22K
quality power
R23
22K
01.07.2
ED. DATE 1 2
SIGN
C
A E D
H
R N W
E
P G G
C
. . .
K
MAGIC SEC OPE PART
REF NO SEC
6
SCHEMATIC DIAGRAMS
7
A
B
5V
C
D
E
3
SCX-1100
OPE Board
REV 0 .3
1/1
Repair Manual
4-9