BenQ G920HDA, Service Manual

Page: 37 / 54

18.5” LCD Color Monitor BenQ G920HDA
37
Schematic Diagram
Main Board
VGA_G-
C315
0.1uF/16V
C305
5pF/50V
C304
0.047uF
C301
0.047uF
C309
0.047uF
C307
0.047uF
C306
0.047uF
C311
0.047uF
VGA_R-
DDC1_SDA {5}
DDC1_SCL {5}
VGA_CON
DSUB_V
1
2
ZD302
RLZ5.6B
1
2
ZD303
RLZ5.6B
DSUB_V {5}
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
1
7
1
6
CN301
DB15
12/29 change
ZD302 ZD303
from NC to
insert
R311 100R 1/16W
CMVCC
RTD_B- {5}
RTD_B+ {5}
RTD_R+ {5}
RTD_R- {5}
RTD_G- {5}
RTD_G+ {5}
R307
75R 1/16W
3
1 2
D302
BAV99
RTD_V {5}
RTD_H {5}
R306 100R 1/16W
R313 100R 1/16W
R309 100R 1/16W
R310
75R 1/16W
R301 100R 1/16W
C303
22pF
1
2
ZD305
RLZ5.6B
R303 100R 1/16W
3
1 2
D301
BAV99
R305
2.2K 1/16W

C302
22pF
R304
2.2K 1/16W 
1
2
ZD304
RLZ5.6B
R314
75R 1/16W
R312 100R 1/16W
DSUB_5V
3
1 2
D303
BAV99
R302 0R05 1/16W
R315 100R 1/16W
1 2
FB302
BEAD
R308 100R 1/16W
C308
5pF/50V
C310
5pF/50V
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME
称 称
T P V ( Top Victory Electronics Co . , Ltd. )
K ey Component
絬 隔 瓜 絪 腹
T8RARPD8FWBUNN 1.0
BenQ G920HDA
B
3 7 Friday , Nov ember 28, 2008
715G2498-1E-AO
<
称称
>
3.INPUT
G2498-1E-AO-X-9-080821
1 2
FB301
BEAD
1 2
FB303
BEAD
DDC1_SDA
DSUB_H
DSUB_5V
VGA_B+
RTD_B-
RTD_B+
RTD_R-
RTD_R+
RTD_G+
RTD_G-
DDC1_SCL
1
2
ZD307
RLZ5.6B
1
2
ZD301
RLZ5.6B
VGA_B-
VGA_G-
VGA_R-
VGA_B+
VGA_G+
VGA_R+
V
G
A
_
B
+
V
G
A
_
R
+
V
G
A
_
G
+
DSUB_CONNECT {5}
VGA_R+
VGA_B-
VGA_G+