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Re: gateway flat screen monitor goes black when turned on
Open monitor and look at the PC Board to locate some kind of DRY SOLDER or burn point , specially where a transformer is located , check re solder any solder point that looks suspicious , and try again , hope this helps
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bonannorl, Maybe it can be fixed. You did not give any history of unit. Only "now" stuff. Is unit covered by Gateway warranty? How old is unit? Date of manufacture? Did unit work fine connected to your pc and this black or black n blank screen thing suddenly happen? Is screen also BLANK? Have you swapped-in old monitor to prove PC is OK? Your CCFL back-lit lcd monitor no different than any other brand in it's basic design and operation. Get into my fixya profile and read some of my testimonials and solutions to black or black n blank screen problems to help in your decision to DIY fix or contract out needed repair work. Most likely 2485w has problem with it's internal "switch-mode-power-supply"/"ccfl inverter supply"!! Let me know more info about unit.
12fixlouie on fixya.
If the screen is black (ie there isn't any backlight) then the fault maybe the inverter board that supplies high voltage to the CCFL lamp ot the CCFL lamp is faulty. For service, parts and DIY info. check out LCD Parts - use this link to their WEB site. www.lcdparts.net
Sounds like a bad solder joint on the printed circuit board. Once it heats up then it no longer makes good contact and the monitor goes black until it cools down and makes contact again. You could resolder it if you knew where it was but monitors are dangerous to go playing around with as they can hold very high charges of electricity in their capacitors that are very dangerous. It's a throw away world. Go buy a new one.
The monitor needs to be replaced. I had an LG LCD that did this luckily it was still under warranty. Contact the maker and have your receipt handy. Otherwise buy a new monitor. Monitors tend to be replacement only