Usb Board - Acer B243W Service Manual

USB board

U708 USB2514-AEZG
Upstream
R719 30
USBUP_DM
VBUS0 100K 1/10W 5% 27
VBUS_DET
31
USBUP_DP
C769
1uF/16V
Dow nstream 1
1
USBDN1_DM
13 2
OCS1 USBDN1_DP
12
PRTPWR1
/OC1
Dow nstream 2
3
USBDN2_DM
/OC2
17 4
OCS2 USBDN2_DP
16
PRTPWR2
Dow nstream 3
6
USBDN3_DM
/OC3
19 7
OCS3 USBDN3_DP
18
PRTPWR3
Dow nstream 4
8
USBDN4_DM
/OC4 21 9
OCS4 USBDN4_DP
20
PRTPWR4
EEPROM/Config
VCC3.3V
22
SDA/SMBDATA/NON_REM1
24
SCL/SMBCLK/CFG_SEL0
R740 25
HS_IND/CFG_SEL1
100K 1/10W 5%
26 Common 35
RESET RBIAS
C782
0.1uF16V
28
LOCAL_PWR/NON_REM0/SUSP_IND
23
VDD33
R753
100K 1/10W 5% 15
VDD33CR
11
TEST
5
VDDA33
10
VDDA33
C798 18P 50V 29
VDDA33
33 36
XTAL1/CLKIN VDDA33/VDD33PLL
R762 X701
1M 1/10W 5% 24.000MHz
14
VDD18
32
XTAL2/CLKIN_EN
C7102 18P 50V
37 34
VSS(FLAG) VDDA18PLL
DM0
DP0 CN707
5
R731
DM1 0R05 1/10W 5%
DP1 DM3 2 L705 NC 1
DP3 3 4
R732
0R05 1/10W 5%
CN708
5
DM2
DP2
R737
0R05 1/10W 5%
L706 NC
DM4 2 1
DP4 3 4
DM3
R739
DP3 0R05 1/10W 5%
VCC3.3V
DM4
DP4
U711
NC/M24C02-WMN6TP
8 1
VCC A0
7 2
WP A1
6 3
SCL A2
5 4
SDA GND
C7101
0.1uF16V
VCC3.3V
C791 C792
0.1uF16V 0.1uF16V
C787 C788 C789 C790
0.1uF16V 0.1uF16V 0.1uF16V 0.1uF16V
C799 C7100
0.1uF16V 1uF/16V
C7103 C7104
0.1uF16V 1uF/16V
Power Regulator
VCC3.3V
USB5V
U710 AP1117E33LA
3 2
VIN VOUT
C793 +
100uF/16V C796
0.1uF16V
TO Main Board
USB5V
6
F701
CONNNECTOR PTCR
t
VBUS1
FB720
VBUS3
VBUS1A 1 2
120 OHM
R721
10K 1/10W 5% C770
C772 0.1uF16V
+
6 100uF/16V
/OC1
CONNNECTOR R725
15K 1/10W 5%
VBUS4
USB5V
F702
PTCR
t
VBUS2
FB721
VBUS2A 1 2
120 OHM
R722 C773
+
10K 1/10W 5% 0.1uF16V
C771
100uF/16V
/OC2
R726
15K 1/10W 5%
Power C721
FB724
USB
120 OHM R743
+12V 1 2
+5V
C779
+
1uF/25V C778
470uF/16V
CN709
R755
5 10K 1/10W 5%
4
USB_CTRL
3 Q711
2 NC/AO4411
1 1
S
2
S
3
S
4
G
CONN
R747
R767 NC/33K 1/10W 5%
NC/22K 1/10W
Q713
NC/PMBS3904
VBUS0
Q712
R752 22K 1/10W
RK7002
+ C795
22uF/16V
56
R729
0R05 1/10W 5%
VBUS1
L707 NC
DM1 2 1
DP1 3 4
R733 9
5 6 7 8
0R05 1/10W 5%
R735 10
1 2 3 4
0R05 1/10W 5%
L708 NC
DM2 2 1
DP2 3 4
R738
0R05 1/10W 5% VBUS2
USB5V
USB5V
F703 F704
PTCR FB722 PTCR FB723
t t
VBUS3
120 OHM 120 OHM
VBUS3A 1 2 VBUS4A 1
C775
R723 + 0.1uF16V R724 +
10K 1/10W 5% C774 10K 1/10W 5% C776
100uF/16V 100uF/16V
/OC3 /OC4
R727 R728
15K 1/10W 5% 15K 1/10W 5%
0.1uF16V
3K9 1/10W L711
U709 AP1510SA 22uH
4 5
VCC OUTPUT
3 6
OCSET OUTPUT
2 7
EN VSS
1 8 D702 C723
FB VSS
SSM54PT 1000PF50V
C783
0.1uF16V
R745 R751
10R 1/10W 5% 1K5 1/10W 1%
8
D
7 FB725 NC
D
6
D
5 1 2
D
R758 0R05 1/10W 5%
DM0 2 L712 NC 1
DP0 3 4
R761 C797
0R05 1/10W 5% 10N 50V
CN706
CONNNECTOR
11
12
VBUS4
2
C777
0.1uF16V
USB5V
+ C722
0.1uF16V
VBUS0
CN704
1
2
3
4
CONNNECTOR