ViewSonic Corporation
Confidential-Do Not Copy
VA912/b-3
46
u
Trouble Shooting Analysis
Check the information in this section to see if the problems can be solved before requesting repair.
Note
:
The consumers are only allowed to solve the problems described as below. Any unauthorized
product modification, or failure to follow instructions supplied with the product will end the warranty
immediately.
l
No image
u
Make sure power button is ON.
u
Check whether the LCD monitor and computer power cords are plugged and whether there is a
supply of power.
l
No Signal Input
u
Check the signal connection between the computer and LCD monitor.
l
“Out of Range”
u
Check the computer image output resolution and frequency and compare the value with the
preset values (Please refer to [Appendix-Display Mode]).
l
Fuzzy Image
u
Adjust Phase.
l
Image too bright
u
Adjust brightness and contrast by OSD.
l
Image too dark
u
Adjust brightness and contrast by OSD.
l
Irregular image
u
Check the signal connection between the computer and LCD monitor.
u
Perform Auto Adjust.
l
Distorted image
u
Reset the LCD monitor
u
Take off e xtra accessories (such as signal extension cord).
l
Image is not centered
u
Use OSD Image Menu to adjust H_Position and V_Position.
u
Check image size setting.
u
Perform Auto Adjust.
l
Size is not appropriate
Содержание VA912/b-3
Страница 26: ...ViewSonic Corporation Confidential Do Not Copy VA912 b 3 23 Figure 5 FIGURE 8 FIGURE 7 FIGURE 6 FIGURE 5...
Страница 36: ...ViewSonic Corporation Confidential Do Not Copy VA912 b 3 33 Step 3 Remove Power PCBA Step 4 Completed...
Страница 69: ...ViewSonic Corporation Confidential Do Not Copy VA912 b 3 11 PCB Layout Diagrams 66...