I have a Viewsonic VX715 The issue with this particular unit is that the picture goes blank few...
(More)
I have a Viewsonic VX715 The issue with this particular unit is that the picture goes blank few seconds after it is turned on. If you turn the lcd off, on, off, on, off, on, off, on. Or change a resolution a few times it eventually starts to work and works properly untill turned off for a certain amount of time. There is not much inside the lcd, only the power board and a signal input board, for a lack of a better name at this moment. The backlight is perfectly fine, picture and backlight are both not operative untill turned on and off a few times. Do I suspect correctly that the powerboard would be the issue in this case, its a single layer board it would not be too difficult to replace any of the components on the powersupply board if required. both inputs have the same issue, does not appear to be a input issue. picture / backlight come on and work perfectly for around 2-5 seconds at first, after which the display goes completely blank but power light remains green. resolution can be changed and the picture will return for a moment with good backlight as well, after a certain amount of on, off, on, off or resolution switching the display operates perfectly for unlimited amount of time untill turned off again after which - being cooled down the on off routine has to be repeated. I've had the display apart a few times now and I can not find anything wrong with the boards.
My viewsonic 715L1075-2-V board has gone i think i had to put a hair drier onto the backlight...
(More)
My viewsonic 715L1075-2-V board has gone i think i had to put a hair drier onto the backlight starters and it come on can you tell me where i can find this part
Hi I have the same problem. Any idea what is the model number for the replacement tube? Any...
(More)
Hi I have the same problem. Any idea what is the model number for the replacement tube? Any suggestion as to how to replace it? Thanks
yeah , it does , and i can see it adjusting slowly or quickly straight to max ~_~ , and while it is...
(More)
yeah , it does , and i can see it adjusting slowly or quickly straight to max ~_~ , and while it is max , it tries to become even MAX therefore the contrast bar may stuck at the middle of the screen for sometime o____o , but it is straight away to contrast , not brightness , it does not even go to the main option there where u can choose to "Auto adjust screen" or contrast/brightness