4-4
SCHEMATIC DIAGRAMS
Samsung Electronics
Repair Manual
Main Circuit Diagram (4/8)
Main Board
REV 0.2
SCX-1100
ALL
RIGHTS RESER
VED
2
5
2
01.08.06
W
B
K
G
ED.
(UNUSED)
E
7
4
3
G
5
SEC
P
1
D
REF NO
.
3
200
.
6
1
4/8
SIGN
E
SAMSUNG ELECTRONICS CO., L
TD.
A
C
E
B
E
2
H
1
N
C
4
A
R
3
3.3V
DGND
100K
R371
6
DATE
MEMORY
C
.
C
D
A
D
R21
C68
100nF
U2-1
74VHC08MX
U2-2
74VHC08MX
100nF
C42
C45
100nF
16V
3VB
DGND
C31
10uF
3.3V
16V
10uF
C30
C57
100nF
100nF
C54
R13
180K
C37
100nF
C53
100nF
DGND
100pF
C8
100nF
C69
VB
MC74VHC32DR2
U1-3
MC74VHC32DR2
U1-4
DGND
68K
R12
VB
DGND
U8
K4S641632D-TC75
U1-1
MC74VHC32DR2
5.5V,5V
R32
0
1.5K
R17
3.3V
C56
U2-4
74VHC08MX
DGND
100nF
100nF
C4
100nF
100nF
C43
C18
C5
100nF
DGND
VB
DGND
DGND
U9
K4S161622D-TC70
MMSD914T1
D2
R9
10K
R10
10K
0
R41
DGND
0
R22
R42
0
DGND
VB2
DGND
100nF
C51
C10
100pF
DGND
Q2
KSA1182-Y
DGND
100nF
C52
U7
1107-001302
DGND
3VB
MC74VHC32DR2
U1-2
3.3V
C44
100nF
DGND
C55
100nF
2SC2812L6-TA
Q8
U3-1
74VHC27
R40
DGND
C9
0
1nF
200
C6
1nF
R16
DGND
74VHC08MX
U2-3
3.3V
CHX
CHXX
CHYY
CHY
ADDR(1:19)
SD_CKE
_SD_RAS
_SRAS
_SD_CAS
_SCAS
DATA(0:15)
_ROM_CS
_RD
_WR
A20
_F_POR
DQM0
DQM1
_SD_CAS
_SD_RAS
_SCS1
_WR
A20
SCLK
SD_CKE
_F_POR
ADDR(1:11)
DATA(0:15)
ADDR(1:12)
DATA(0:15)
_SD_RAS
_SD_CAS
A21
A22
_SCS0
_WR
DQM0
DQM1
SCLK
SD_CKE
(Unused)
(Unused)
Summary of Contents for SCX-1100
Page 77: ...3 18 CIRCUIT DESCRIPTION Samsung Electronics Repair Manual 3 J3 Assigned GPO ...
Page 85: ...3 26 CIRCUIT DESCRIPTION Samsung Electronics Repair Manual 3 5 3 COPY DATA FLOW FOR OA 980 ...
Page 86: ...3 27 Samsung Electronics CIRCUIT DESCRIPTION Repair Manual 3 5 4 OA 980 I O PORT ...
Page 87: ...3 28 CIRCUIT DESCRIPTION Samsung Electronics Repair Manual ...
Page 108: ...Electronics ...