Service manual

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 (PWB-0537)
JP2 : 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
ViewSonic Corporation
11
Confidential – Do Not Copy
VG500b