Monitor turns on then goes dark
Either the power supply board is failing and needs repair or a bad bulb in the screen is causing it.
You would have to open it up to get a better idea.
Here's some info:
SURE ALL POWER is DISCONNECTED For at least 5 minutes PRIOR TO WORKING ON
If your picture wasn't
pinkish or dark at the top or bottom when it was working, then it may be the
inverter has gone bad. Inverters are like light bulbs and have life
expectancies on the capacitors.
If your picture was
pinkish or dark at the top or bottom when it was working then you may have 1 or
more of the bulbs failing.
You can check for
pinkish if your screen flashes.
What you do is when you have it open to the point of getting to the wires that
hook to the back of the lcd screen is to disconnect only the wide ribbon that
goes from the video board to the back of the screen. Then start it and check
the screen flash color.
These come apart a little different than most. The front trim comes off with
the screen. So essentially you are removing the back case first:
Once the four screws are out of the rear corners there are snap tabs that need
to be released between the silver trim and the back black plastic (three top
and bottom and two on left and right.)
You can use a thin knife blade to help release them as you separate the silver
from the back plastic Black part has to be bent outwards to release these tabs.
Then entire guts will come out with the screen ., then the inverter is under
the center area under the metal cover.
Shout if you need more info.
If you email me a good picture of the inverter in the area of the larger yellow
square component and one from underneath , behind the two small yellow square
components, I may be able to get a better idea if it is the inverter from a
Email : firstname.lastname@example.org
Mar 29, 2010 |
ViewSonic VX715 17" LCD Monitor