ViewSonic VA1912W Service Manual - Page 47
Trouble Shooting Analysis - problem
UPC - 766907167313
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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. z No image Make sure power button is ON. Check whether the LCD monitor and computer power cords are plugged and whether there is a supply of power. z No Signal Input Check the signal connection between the computer and LCD monitor. z "Out of Range" Check the computer image output resolution and frequency and compare the value with the preset values (Please refer to [Appendix-Display Mode]). z Fuzzy Image Adjust Phase. z Image too bright Adjust brightness and contrast by OSD. z Image too dark Adjust brightness and contrast by OSD. z Irregular image Check the signal connection between the computer and LCD monitor. Perform Auto Adjust. z Distorted image Reset the LCD monitor Take off extra accessories (such as signal extension cord). z Image is not centered Use OSD Image Menu to adjust H_Position and V_Position. Check image size setting. Perform Auto Adjust. z Size is not appropriate Use OSD Image Menu to adjust H_Position and V_Position. Check image size setting. Perform Auto Adjust. z Uneven color Use OSD Color Menu to adjust color setting. z Color too dark Use OSD Color Menu to adjust color setting. z Dark area distorted Use OSD Color Menu to adjust color setting. z White color is not white Use OSD Color Menu to adjust color setting. ViewSonic Corporation 44 Confidential - Do Not Copy VA1912w-2_VA1912wb-2