BenQ E2220HD, Service Manual

Page: 64 / 83

21.5 ″ LCD Color Monitor BenQ E2220HD
64
USB Board
UGND UGND
DP3
DM33
+
C791
470uF
5/7/2009 change connector
from 90 degree to 180, pin
reverse. connector opening
toward boarder.
DM3
VBUS2
UGND
DM3
R755 NC
DM22
FB756
120 OHM
1 2
Vout=Vfb* (1+Ra/Rb)=5.16
VBUS3A
R785
2K2 1/10W 1%
VBUS3
C790
0.1uF 16V
UGND
ZD758
NC/VPORT0603 102M V05
1
2
USB3.3V
UGND
+
C777
100UF25V
C787
0.1uF 16V
1 2 3 4
5 6 7 8
CN751
CONN
1 2 3 4
6 5 7 8
11
12
9
10
UGND
FB752
120 OHM
1 2
Upstream
Dow nstream 1
Dow nstream 2
Dow nstream 3
Dow nstream 4
EEPROM/Config
Common
U752 USB2514-AEZG
31
30
2
4
7
9
1
3
6
8
27
12
16
18
20
13
17
19
21
35
22
24
25
33
32
26
28
11
23
34
29
36
15
14
37
5
10
USBUP_DP
USBUP_DM
USBDN1_DP
USBDN2_DP
USBDN3_DP
USBDN4_DP
USBDN1_DM
USBDN2_DM
USBDN3_DM
USBDN4_DM
VBUS_DET
PRTPWR1
PRTPWR2
PRTPWR3
PRTPWR4
OCS1
OCS2
OCS3
OCS4
RBIAS
SDA/SMBDATA/NON_REM1
SCL/SMBCLK/CFG_SEL0
HS_IND/CFG_SEL1
XTAL1/CLKIN
XTAL2/CLKIN_EN
RESET
LOCAL_PWR/NON_REM0/SUSP_IND
TEST
VDD33
VDDA18PLL
VDDA33
VDDA33/VDD33PLL
VDD33CR
VDD18
VSS(FLAG)
VDDA33
VDDA33
UGND
UGND
VBUS4
t
F752
PTCR
1
2
UGND
UGND
R763 NC
DM44
DM2
C766
4.7uF/16V
DP3
+
C781
100UF25V
R761 NC
+
C784
470uF 25V
R767
1
00KO
H
M
5%
1/
16W
C763
100N 16V
UGND
VBUS3
U754
AP1510SA
1
2
3
4
5
6
7
8
FB
EN
OCSET
VCC
OUTPUT
OUTPUT
VSS
VSS
C761
1nF 16V
C774
4.7uF/16V
UGND
USB3.3V
2
1 34
CN752
CONN
1
2
3
4
6
5
DM1
FB755
120 OHM
1 2
ZD754
1
2
C783
0.1UF50V
(Vcc=3.3~24V)
UGND
USB5V
UGND
VBUS2
UGND
VBUS3
R783
NC
C773
100N 16V
R754 NC
R768 NC
U5V
X751
24.000MHZ
1
2
C756
100N 16V
Vfb(typ)=0.8V
UGND
+
C779
100UF25V
VBUS0
UGND
DP33
C782
100N 16V
R771
1MOHM 5% 1/16W
C751
100N 16V
EEPROM NC: R818~820 pull low
UGND
/OC3
VBUS2A
FB757
120 OHM
1 2
R7
64
10
K
1/
16
W
USB5V
ZD756
1
2
UGND
UGND
UGND
USB3.3V
FB753
120 OHM
1 2
L753
90 OHM
1 2
3 4
U751 AP1117E33LA
1
2 3
VSS
VOUT VIN
VBUS4
UGND
/OC3
C757
100N 16V
C754
100N 16V
UGND
UGND
USB3.3V
R773
10K1/16W
R777
15KOHM 1/16W
UGND
C767
100N 16V
12K1/10W
R784
R752
100KOHM 5% 1/16W
UGND
ZD752
NC/VPORT0603 102M V05
1
2
R7
60
N
C
/1
0K 1/
10W
5%
DP1
DP33
DP2
R7
66
11.
5K +
-1%
1/
16W
USB_POWER
DM4
/OC4
R7
51
10
K
1/
16
W
UGND
UGND
D751
SR54
1
2
C755
1uF 10V
VBUS1A
+
C776
100UF25V
R762
100KOHM 5% 1/16W
UGND
UGND
UGND
R770 NC
R776
15KOHM 1/16W
DM0
Power Regulator
U5V
/OC4
UGND
/OC1 /OC2
L756
22UH +-20%
C768
100N 16V
R7
65
10
K
1/
16
W
USB5V
DP22
L754
90 OHM
1 2
3 4
UGND
DP11
+ C752
100UF25V
USB3.3V
R778
15KOHM 1/16W
DP4
C772
4.7uF/16V
DM11
UGND
R774
10K1/16W
C778
100N 16V
L751
90 OHM
1 2
3 4
UGND
UGND
UGND
VBUS4
C793
NC
R772
10K1/16W
UGND
VBUS1
R775
10K1/16W
EEPROM mount: R812~814 pull hi
UGND
C786
NC
ZD751
NC/VPORT0603 102M V05
1
2
DP0
/OC1
DP44
R757 NC
UGND
CN753
CONN
1
2
3
4
5
6
7
8
C788
NC
UGND
C760
NC/100N 16V
C765
33P 50V
UGND
/OC2
R756 NC
UGND
DP4
DP44
R782
NC
UGND
UGND
DM4
C780
100N 16V
C785
0.1UF50V
UGND
D
BenQ E2220 A2
2 2 Wednesday , July 01, 2009
< 称爹 >
USB HUB
G3552-T0F-X-X-1-090701
715G3552-T0F
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
UGND
R779
15KOHM 1/16W
UGND
R7
58
N
C
/1
0K 1/
10W
5%
UGND
VBUS0
VBUS3A
R769
NC
C764
100N 16V
R7
53
100
KO
H
M
5
%
1/
16
W
VBUS_DET
R781
3.6K 1/10W
DP1
C758
100N 16V
UGND
VBUS1
t
F754
PTCR
1
2
C771
100N 16V
Ra
USB5V
USB5V
C762
100N 16V
C759
100N 16V
C775
100N 16V
VBUS0
UGND
FB758
120 OHM
1 2
UGND
DM2
UGND
C770
33P 50V
CN754
CONN
1
2
3
Rb
USB_power=16V
UGND
D752
LL4148
C769
100N 16V
t
F751
PTCR
1
2
USB3.3V
FB754
120 OHM
1 2
L755
90 OHM
1 2
3 4
UGND
+ C753
100UF25V
DP2
DM1
ZD757
NC/VPORT0603 102M V05
1
2
R7
59
N
C
/1
0K 1/
10W
5%
t
F753
PTCR
1
2
C789
NC
DM44
ZD755
NC/VPORT0603 102M V05
1
2
FB751
120 OHM
1 2
UGND
L752
90 OHM
1 2
3 4
C792
NC
ZD753
1
2
UGND
DM33
R780
100K 1/10W
U753
NC/M24C02-WMN6TP
1
2
3
4
5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC