Samsung CLP-600 Series - Power on Reset

Schematic Diagram
Service Manual
11-2
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Samsung Electronics
0
* 1st POR : 189ms
Rev 0.4
B
14.318MHz
A
1 : DESKTOP MODE
FS2
daVinci MAIN GDI
ICS9248-81& RESET
* check CL value
A
* Place NC5 very close to Hyper-C
05.04.01
B
D
E
CLOCK SELECTION
7
FS1
CLP-600
5
0
61
Power On Reset
4
1
*Reserved
75.0 75.0
SDRAMCPUFS0
Place each 100nF very close to Power Pin
PCI
C
0 : MOBILE MODE
30.0
F
2
ALL RIGHTS RESERVED
2/21
SAMSUNG ELECTRONICS CO., LTD.
3
*System Reset Switch
C
8
* Input only I2C
NR26
C128
3.3V9248
C169
+3.3V
DGND
NR25
R161
SW1
NR51
NC27
C154 C118
R297
+3.3V
C208
DGND
R180
+3.3V
C168
3.3V9248
C157
R296
E14
Check 48MHz?
+3.3V
9248_XIN
C126
R567
C144
NC4
NC3
R184
R279
Check 24MHz?
E16
DGND
R181
NR49
DGND
C121
R283
R280
F6
75M_1
Check 75MHz?
C167
DGND
DGND
+3.3V
R182
NC24
R249
NC5
nPD
nSDRSTOP
VDDSD
VDDSDR
VDDSDR2
X1
X2
nCPU25_33
nCPUSTOP
nPCISTOP
SDRAM7
SD_SEL SIO
VDDLAPIC
VDDLCPU
VDDPCI0
VDDPCI1
VDDR
SDRAM0
SDRAM1
SDRAM12
SDRAM2
SDRAM3
SDRAM4
SDRAM5
SDRAM6
PCICLK1
PCICLK2
PCICLK3
PCICLK4
PCICLK_F
SCLK
SDATA
GND3 GND4 GND5 GND6 GNDL
IOAPIC
MODE PCICLK0
48MHZ
CPUCLK1
CPUCLK2
CPUCLK3
GND0 GND1 GND2
1205-002660
ICS9248-81
U33
SDRAMCLK0
Check 75MHz?
NR48
R163
DGND
DGND
DGND
R185
R570
DGND
RA30
75M_2
Check 3.3V
E8
NC8
Check 75MHz?
NR53
NR50
C145
C123
NR24
+3.3V
R282
R165
DGND
U41
3.3V9248
NC26
+3.3V
R183
nRESET
Check High
R162
OSC4
C72
DGND
R218
DGND
+3.3V
DGND
3.3V9248
NC25
DGND
C166
C263
R178
SCL_V320
SDA_V320
24MHZ
PCLK_LAN
DGND
SIO
9248_XIN
nRESET
SDRCLK0
PCLK_HYPERC
PCLK_PLD
nSDRSTOP
nPD
nCLKSTOP
I_CPUCLK2
I_PCLK_V320
I_PCLK_PLD
PCLK_V320
CPUCLK2
9248_XOUT
I_PCLK_WLAN
I_PCLK_HYPERC
SD_SEL
FS1
FS2
SIO
nCPUSTOP
nSDRSTOP
nPD
nCLKSTOP
9248_XOUT
9248_XIN
CPUCLK1
I_CPUCLK1
PCLK_WLAN
FS0
FS0
SD_SEL
FS2
FS1
nCPUSTOP
Main Board(2/21)