Samsung SCX-1150F Repair Manual page 55

Main Circuit Diagram (3/8)
1
A
U11
3.3V
LF25CDT
1
OUT
I0
GND
C64
2
100nF
DGND
DGND
DATA(0:15)
B
ADDR(0:19)
PD(0:7)
C
_P_SLCTIN
_P_STB
_P_INIT
_P_AUTOFD
_P_ERROR
P_SLCT
P_PE
P_BUSY
_P_ACK
USB_DP
USB_DM
PULLUP
VBUS
D
E
1
Samsung Electronics
2 3
VB2
2.5V
C111
100nF
3 TP3
C65 C99 C113 C77 C91
1uF
100nF 100nF 100nF 100nF
50V
PLLGND
A20
A21
R58 100
A22
R57 100
_OPE_RST
R73 100
_IP_RST
RA1
100
1/16W
RA2
100
1/16W
C215
1nF
DGND
C218
22pF
R102
10M
X3
0.32768MHz
C112 22pF
DGND
2 3
4
3.3V
BD4
600ohm BEDA
C76 C92 C88 C87 C110 C78
100uF 100nF 100nF 100nF 100nF 100nF
16V
DGND
PLLGND
3.3V
R101
4.7K
R76 0
_POR
R100 0
_F_POR
_IP_INT
R208 100
_MODEM_IRQ
R90 100
PH_ID1
100
R91
R71 100
_ROM_CS
R83 100
_IP_CS
R86 100
_MODEM_CS
R85 100
_GPIO_CS
R93 100
245DIR
R55 100
_WR
R56 100
_RD
R50 100
_SCAS
100
R59
_SRAS
R51 100
_SCS0
R60 100
_SCS1
IPCLK
U15
R61 100
R11 100
SCKE
S3C46MOX
DQM0
DQM1
RA5
1/16W
RA4
1/16W
RA3
1/16W
KEYCLICK
_TBCS
DGND
3.3V
R84 R88
4.7K 4.7K
R89 100
R80 600ohm BEDA
R72 100
R87 100
4
5 6
3.3V
3.3V R77
100K
U13
XC61FN3112MR
_POR
C90
C79 10nF
100nF
DGND DGND DGND
3.3V
C220
R3
1nF
4.7K
3.3V
DGND
C125
BD14 U37
CIM21J121NES
FS781BZB
X1
SD16150J7-10.000M
C216
R107 100 C219
100nF
R204
C217
3.3K 0.68nF
DGND DGND
R95 100
DGND
C93 C89
820pF
SCLK 820pF
C70
100pF
DGND DGND
R75 4.7K
R74 4.7K
R94 4.7K
R92 4.7K
_TRST
TDI
TCK
TDO
TMS
ACLK
4.7K 4.7K 4.7K 4.7K 4.7K 3.3V
AGATE
R64 R78 R65 R62 R63
LATCHCTL
PCLK
PDATA3
PDATA2
PDATA1
PDATA0
PENABLE
PLOAD
LDCS
TBCLK
TBDO
OK2PRT
OPE_RXD
OPE_TXD
PH_ID2
_IP_REQ
_IP_ACK
_P_PICKUP
COVER_OPEN
PWM
CHYY
CHXX
ED. 1
DATE
SIGN
C
A E
H
R N
E
P G
C
. .
K
REF NO SEC
5 6
SCHEMATIC DIAGRAMS
7
A
22pF
B
22pF
DGND
3.3V
C
DGND
D
E
2 3
D
SCX-1150F
W
G Main Board
.
REV 0.2
CONTROLLER
3/8
Repair Manual
4-3