Samsung WC-M15i Series Service Manual page 126

Controller Diagram(3/11)
VCC
R40 R37
10K 10K
nROMCS(0)
nROMCS(1)
nROMCS(2)
nROMCS(3)
C56
C58 C57
10pF 10pF 10pF
R71 0
TXD_0
RXD_0
R75 0
TXD_1
RXD_1
C69
10pF
VCC
R91 R93 R94
10K
10K 10K
nIOCS4
nIOCS3
nIOCS2
nIOCS1
nIOCS0
C121 C122 C123 C124
100pF 100pF 100pF
Samsung Electronics
R35 R34
10K 10K
C55
10pF
VCC
TXD0
R70 0
RXD0
TXD1
R77 0
RXD1
C87 C67
C68
10pF 10pF 10pF
R95 R80
10K 10K
RA13
100
1 2
IOCS4
3 4
IOCS3
5 6
IOCS2
7 8
IOCS1
R79 100
IOCS0
C88
100pF 100pF
Y2
DXO-CLOCK
LF5
50MHZ
R55 SCF451832-223T R74
33 68
1 3
4 3
C65 C83
2
VCC OUT
100nF 68pF
R85
GND
NC
2.2K
1 2
C95
100pF
VCC
VCC
R106
U20
100nF
10K
1 8
REF VCC
2 7
*RESIN SENSE
R116 470
3 6
CT RESET
C127
100nF C126
4 5
GND *RESET
33uF
10V
R97
TL7705ACD
10K
VCC
R84
10K
UNUSED
R105
1
nTS
CLR
0
2
TS* D
U19-1
74F74
3
SYSCLK CLK
PR
4
RST*
U14
FS741
1 8
XIN VCC
C82
R86 C84
2 7
XOUT VI 10uF
10K 150pF
16V
3 6
REF VO
R87
1K
4 5
LF GND
C96
22pF
VCC
VCC
VCC
C107
100nF
R81
C125 1K
U15-2
R96
74F14
R82 0
10K
14
2 4
1 3
U15-1
C92
7
74F14
1nF
Schematic Diagrams
VCC
C97
100nF
14
VCC
R104
33
5
Q nTS
C119
22pF
6
_Q
GND
7
VCC
LF7
SCF451832-223T R68
10
1 3
2
R88
68
MCLK
C98
10pF
6
5 U15-3
74F14
F_RST*
nRESET
12
13 U15-6
74F14
8-9