ViewSonic VTMS2431 Service Manual page 76

8.6. VGA
D526
4.7P
1,4,7,8,12 VCC5V-ST
VCC5V-ST
VGA5V
ViewSonic Corporation
P502
DSUB-15
VGA-TX
11 1
6
12 2
7
13 3
8
VGA-RX
14 4
VGA5V
9
D506 D525
15 5
16 10
R-
G-
4.7P 4.7P
B-
R553 100R
R554 100R D509
D507 D508
4.7P
4.7P 4.7P
R546
510R
modify pull high voltage from +5V_General to VGA5V 080515
R547
510R
D512 D513
4.7P 4.7P R550
100R
DDC_SCL_D
DDC_SDA_D
D514
BAT54C
NC
C520 I503 R558
100nF 24C21
R560
1 8
NC VCC
VGA-VCLK 10K
2 7
NC VCLK
VGA-SCL
3 6
NC SCL
VGA-SDA
4 5
GND SDA
Close to VGA
VGA_RIN+
VGA_GIN+
VGA_BIN+
R543 R544 R545
75R 75R 75R
D510 D511
4.7P 4.7P
Close to MST. IC
R548
2.4K
R551 R552
4.7K 4.7K
R589 NC UART-RX
R590 NC UART-TX
R555 R556 VGA-TX R557 100R
100R 100R
VGA-RX R559 100R
73
R539 47R C516 47nF RGB1_RIN+
RGB1_RIN+ 4
R540 47R C517 47nF RGB1_GIN+
RGB1_GIN+ 4
R541 47R C518 47nF RGB1_BIN+
RGB1_BIN+ 4
R542 470R C519 1nF RGB1_SOG
RGB1_SOG 4
VGA_HSYNC1
VGA_HSYNC1 4
VGA_VSYNC1
VGA_VSYNC1 4
R549
10K
UART-RX 4
UART-TX 4
Confidential - Do Not Copy VTMS2431