![background image](http://html1.mh-extra.com/html/viewsonic/vg500b-1/vg500b-1_service-manual_1021189011.webp)
10
VDDD
DC_3.3V for panel VCC
11
VDDD
DC_3.3V for panel VCC
12
VDDD
DC_3.3V for panel VCC
13
VDDD
DC_3.3V for panel VCC
14
VDDD
DC_3.3V for panel VCC
15
VCOM
Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
16
VCOM
Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
17
VCOM
Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
18
VCOM
Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
19
VCOM
Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
20
VCOM
Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
21 GND
Ground
22 GND
Ground
23
EB7
Blue data signal of even pixel
24
EB6
Blue data signal of even pixel
25
EB5
Blue data signal of even pixel
26
EB4
Blue data signal of even pixel
Pin No.
Symbol
Function
27
EB3
Blue data signal of even pixel
28
EB2
Blue data signal of even pixel
29
EB1
Blue data signal of even pixel
30
EB0
Blue data signal of even pixel
31 GND
Ground
32
EG7
Green data signal of even pixel
33
EG6
Green data signal of even pixel
34
EG5
Green data signal of even pixel
35
EG4
Green data signal of even pixel
36
EG3
Green data signal of even pixel
37
EG2
Green data signal of even pixel
38
EG1
Green data signal of even pixel
39
EG0
Green data signal of even pixel
40 GND
Ground
41
ER7
Red data signal of even pixel
42
ER6
Red data signal of even pixel
43
ER5
Red data signal of even pixel
44
ER4
Red data signal of even pixel
45
ER3
Red data signal of even pixel
46
ER2
Red data signal of even pixel
47
ER1
Red data signal of even pixel
48
ER0
Red data signal of even pixel
49 GND
Ground
50 GND
Ground
POWER/AUDIO Board (LOR-002)
JP2 (T-B12B-ZR): Connect to the I/F Board
Pin No.
Symbol
Function
1
Volume
Speaker volume control (0V sound off, 1.2V sound Max.)
2 Stdby
Audio
standby control (High standby, Low normal)
3 DC+5V
DC+5V
4 DC+5V
DC+5V
5 GND
Ground
6
MUTE+
Audio mute control (Voltage High speaker off, Low speaker on)
7
BRT
Brightness adjustment (Low is max., High is Min.)
8
CCFL_EN
Backlight lamps enable (ON/high, OFF/low)
ViewSonic Corporation
8
VG500b-1
Confidential
– Do Not Copy
Summary of Contents for VG500b-1
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