Samsung SCX-1100 Service Manual page 103

SCHEMATIC DIAGRAMS
Main Circuit Diagram (6/8)
1
A
HOME
REG1_SEN
_ADF_DET
VOL_00
VOL_10
VOL_20
ADC_SDI
ADC_SEN
ADC_SCK
LAMP_ON
_D_DET
_D_SCAN
B
R205 100
_SF_POR
_MODEM_RST
ADF_PHA
ADF_PHB
ADF_IA0
ADF_IA1
ADF_IB0
ADF_IB1
SCAN_PHA
SCAN_PHB
SCAN_IA0
SCAN_IA1
SCAN_IB0
SCAN_IB1
ADDR(9:8)
DATA(0:7)
DGND
U3-3
74VHC27
ADDR(10)
_IP_CS
_WR
C 3.3V
TP457
TP460
TP458
R116
TP459
4.7K
_IP_INT
TP450
_IP_RST
R98 100
IPCLK
DGND
D
E
1
Repair Manual
4-6
2
3
C139 C142
100nF 100nF
C164 C153
100nF 100nF
DGND
R206
4.7K
100
R115
R117 100
RA6
100
1/16W
(Unused)
U21
OA-980
U3-2
74VHC27
3.3V
BASEEXT
MAINEXT
R118 1K
1 TP33
TP232
1
TP231
1
1 TP31
1 TP32
1 TP233
TP237
1
1TP238
1 TP269
1TP236
TP234
1
1 TP235
1 TP25
1 TP29
TP30
1
TP268
1
1 TP28
1 TP26
TP27
1
DGND
MC74VHC32DR2
ADDR(10)
_WR
U18-3
MC74VHC32DR2
_IP_ACK
_RD
U18-4
2 3
- This Document can not be used without Samsung's authorization -
4
3.3V
BD8
0,5%
C129 C180
C130 C163 C162 C128
100nF 100nF 100nF 100nF 10uF 10uF
16V 16V
C143 C176
C140 C178 C165 C151 10uF 10uF
100nF 100nF 100nF 100nF
16V 16V
3.3V
DGND
R134
4.7K
SDRAMDATA(0:15)
R374
33
3.3V
R128
4.7K
DGND
C131
100nF
DATA(0:7)
DGND
_IP_ACK0
_IP_REQ
_WR_L
_IP_ACK0
4
5 6
BASEEXT MAINEXT
R119 R120
0 0
DGND DGND
U27 SDRAMDATA(0:15)
K4S641632C
3.3V
C198
10uF
16V
3.3V
DGND
C107
10uF 10uF
16V
C116
100nF
U16
WM8192
DGND
C105 100nF
AGND
R97 47K
C102
10nF
CCD_TG
_ADC_VSMP
ADC_CLK
C104
1000nF DGND
CCD_RS
CCD_CLK2
CCD_CLK1
C94 C114
100nF 100nF
C103
100nF
AGND
ED. 1 01.08.06 2
DATE
SIGN
C
A E
H
R N
E
P G
C
. .
K
REF NO SEC
5 6
7
A
B
5V
5VA C
C127
10uF
16V
C106 C115
100nF 100nF
DGND AGND
VOUT_R
VOUT_G
VOUT_B
3.3V
ADC_CLK
_ADC_VSMP
D
ADC_SCK
ADC_SDI
ADC_SEN
R104
4.7K
R105
4.7K
DGND
E
3
D
W SCX-1100
G
Main Board
.
REV 0.2
IMAGE PROCESS
6/8
Samsung Electronics