Samsung CLP-300 Series Service Manual page 64

Main Board(4/15)
1 2
A
C210
C211
15pF
DGND 15pF OSC5
ATS-49/U,12MHz,50ppm
+3.3V
U12
1 8
XIN/CLKIN XOUT
R190
2 7
0 VSS VDD
3 6
S1 FRSEL
B 4 5
S0 SSCLK
NR114 CY25811
R189
0
0
DGND
S0 S1
0% N.C N.C
0.4% LOW N.C
0.5% 1 0
C
1.1% N.C 0
1.3% 0 0
[ SYSTEM CLOCK ]
D
+3.3V
R170
1K
R172
+3.3V
100
U25
1
Vout
3
Vin
E
2
Vss
C277 C302
1nF
100nF XC61FN3112MR
DGND
DGND
[ SYSTEM RESET ]
F
1 2
1
B B B B
Service Manual
11-4
3 4
C129 15pF
OSC2
+3.3V
C128 15pF
F1
STS104B
ATS-49/U,12MHz,50ppm
DGND
1 3
2
C194
100nF
[ VCLK ]
DGND
R88 33
XI_MCLK
C178
15pF
C312
22pF
DGND DGND
+5V
F2
STS104B
1 3
R115
2
10
C234
C244
100nF
10uF
DGND
nRESET
CLX-3160FN ONLY
+3.3V
Vb
R121 0
Q11
KSC1623-Y
R142 300 1
3 Q9
NR6 KSB1151-Y
30K 3
1 2
2
R151
470K +5V
D27
RB420D T147
R152 5.6K 2
1 Q12
KSA1182-Y
R161
3
DGND 56
R162 56
3 4
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5 6
C165 22pF
XI_VCLK XI_RTC
OSC3
MC-306,32.768KHz
XO_VCLK XO_RTC
C155 22pF
DGND
[ RTC ]
+1.2V +5V
U19
L9
2.2uH
7 6
PVIN SW
8 SVIN 5
SFB
R105 31.6K,1%
10 11
SHDN VSET
C243
22uF
4 12
SGND PSET
R109 280K,1%
MVPG31
C308
47uF
16V
DGND
DGND
3301-000325|R3225_BEAD
VBIN
5 6
Schematic Diagram
7 8
A
+3.3V
LED1
SLS-NNGA102TS
TEST_LED3
R175 5.1K
B
+3.3V
F3
U24
STS104B
LD1117DT33C
1 3 3 2
OUT
IN
GND
2
C255
C
1
C303
C301 100uF
10uF
100nF 16V
16V
DGND
D
L8
L5
FGND
E
Digtal Printing Division
Engineer K.C.LEE
R&D 5
Drawn by
Size
TITLE:
R&D CHK S.D.AN
F
A3
DOC CTRL CHK
CLP-300(N)/CLX-3160N(FN)
MFG ENGR CHK
Main_V0.11
4/15
Clock & Power On Reset
7 8
Samsung Electronics