Acer AT1921 Service Manual page 47

A
R18 2.2K/6F R19 1.4K/6F
U2
5VSB L56
Bead_121_4A/8
3 2
VIN VOUT
C11 C12
+ 1
ADJ/GND
+
C9 AP1117ELA/TO252
4
10uF/25V 0.1uF/6 10uF/25V
Power ON alive source
R22 2.2K/6F R23 1.4K/6F
5VSB U4
L65
Bead_121_4A/8
3 2
VIN VOUT
+ C22 1 C23
ADJ/GND
+
C20 AP1117ELA/TO252
10uF/25V 0.1uF/6 10uF/25V
3
R26 330R/6F R27 200/6F
5VSB U6
L64
Bead_121_4A/8
3 2
VIN VOUT
+ C32 C33
1
ADJ/GND
C30 +
10uF/25V AP1117ELA/TO252
0.1uF/6 10uF/25V
R30 330R/6F R31 200/6F
U8
VCC
3 2
VIN VOUT
C40 C41
+ 1
ADJ/GND
C39
+
10uF/25V AP1117ELA/TO252
0.1uF/6 10uF/25V
2
ADCV33A ADCV33A
DV33B
L9
Bead_121_4A/8/NC Bead_121_4A/8/NC
+
PLLVDD AADCVDD
PLLVDD 4
XTALVDD AVDD_VAD0
1
XTALVDD 4
AVDD_VAD1
VPLLVDD2 AVDD_VFE0
VPLLVDD2 4
ADACVDD AVDD_VFE1
ADACVDD 4
A
B
R20 2.2K/6F R21 5.6k/6F
SB33B SB33A U3
L5
Bead_121_4A/8
3 2
VIN VOUT
C14
+ 1
ADJ/GND
C13
0.1uF/6 C10 AP1117ELA/TO252
10uF/25V 0.1uF/6
R24 100R/6F R25 200R/6F
ADCV33A U5
L6 Bead_121_4A/8
3 2
VIN VOUT
+ 1
ADJ/GND
C24
0.1uF/6 C21 C25 AP1117ELA/TO252
10uF/25V 0.1uF/6
R28 100R/6F R29 200R/6F
DV33A
U7
L46 Bead_121_4A/8
3
VIN VOUT
+ C35
1
ADJ/GND
C34
0.1uF/6 C31 AP1117ELA/TO252
10uF/25V 0.1uF/6
L55
Bead_121_4A/8 DV33B
C42
0.1uF/6
ADCV18A
DV33A
L10
L11
Bead_121_4A/8/NC
+ +
AADCVDD 4
AVDD_VAD0 4
AVDD_VAD1 4
AVDD_VFE0 4
AVDD_VFE1 4
B
C D
STANDBY ANALOG POWER
ASB18A
SB18A ASB18A L4
Bead_121_4A/8
L58
Bead_121_4A/8
C15
C16 C17 FB1 Bead_121_4A/8
+
0.1uF/6 0.1uF/6
10uF/25V
NORMAL VIDEO DAC POWER
ADCV33A
L53 ADCV18A
Bead_121_4A/8
C26
C27
+
0.1uF/6
10uF/25V
NORMAL AUDIO ADC / DAC POWER
ADCV33A
CE5
10uF/10V/8
L57 DV18A
Bead_121_4A/8
2
C36
+ C37
0.1uF/6
10uF/25V
NORMAL VIDEO ADC POWER
ADCV33A
FB2
ADCV18A
DV18A
FB3
NORMAL ANALOG POWER
ADCV33A
FB4
C D
E
XTALVDD
CB6
C8
+
0.1uF/6
LVDS_GND
PLLVDD
CB9
+
0.1uF/6
LVDS_GND
CB11 CB12
CB10
C19
+
0.1uF/6
0.1uF/6 0.1uF/6
4.7uF/25V
L7
AADCVDD
22uH/8
C28 RC0805 + CE6 CB13
0.1uF/6 100uF/16V C29 0.1uF/6
1uF/6
L8
ADACVDD
22uH/8
RC0805 + CE7 CB14
100uF/16V
C38 0.1uF/6
1uF/6
Bead_121_4A/8 AVDD_VFE0 AVDD_VAD0
CB15 CB16
C43
10uF/10V/8 0.1uF/6 0.1uF/6
CC0805
Bead_121_4A/8 AVDD_VFE1 AVDD_VAD1
CB18
C44 CB17
0.1uF/6
10uF/10V/8 0.1uF/6
CC0805
Bead_121_4A/8 VPLLVDD2
CB19
+
0.1uF/6
LVDS_GND
PROJECT :E9T-PV
Title
LDO
Size Document Number
Custom <Doc>
Date: Tuesday, May 29, 2007 Sheet 3
E
4
3
2
1
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C3B
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