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Re: M270 dvd player
It sounds like your backlight circuit is bad. This usually can be replaced, but, I have bad news for you, Amphion Mediaworks is no longer in business. The closed their doors a few years ago. In addition there is very little to no service documentation on their products so finding a repair shop willing to repair these units will be a task in and of itself.
Your best bet is to buy a new unit, or attempt to find a shop willing to repair the unit. I have had 4 customers I had to turn away for lack of finding the proper documentation to begin repairs on their systems.
I even had one customer try to sue me because while I repaired his DVD player I had to use what I knew about DVD players, and he wanted copies of the service documentation, but refused to believe that there was no documentation.
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That is called a TV, DVD combo. You either need the 6 legged sound IC chip replaced or the tuner needs a resolder on a cold solder joint inside it. (i've done this a few times, with a large magnefying glass)
ur backlight is already basted or need to replace, this laptop right.Or sometime lcd is the problem either the two i already encountered that case and i solve it by replacing the backlight but it is only expensive.
You have to replace the DVD player. The problem is that parts are not available and it's difficult to open the unit. There are about 20 screws to remove, including four screws hidden behind each fender. You have to pry the fenders and rip them off to break two brackets that hold each fender on. The fenders still hold on fine with the remaining seven tabs on each fender. You have to eject the disc to get the mouth off.
I have a working DVD player for sale. It's from a car TV with a defective picture circuit, but the player runs and I hear the movie soundtrack, so I'm 99% sure it's good. I broke the mouth off the player, but it could be glued back.
If you have a good motherboard for sale with a bad DVD player, I might buy the motherboard from you.
Your unit has a composite output. Hook a standard TV up to this connection and try it. If you have a picture your display on the portable unit is bad. Sounds like you lost the backlight. You would need to have a tech look at this to fix it. Good luck.
This could either be an inverter issue, or a backlight issue.
Lamp replacement varies from very easy, seconds, to impossible without returning the entire panel to a service depot.
There are some other possibilities (cables, motherboard problems
controlling the backlight) but they are RARE.
Inverters are relatively cheap (they are not "cheap", but they are still 80% less than a new LCD panel and 75% less than replacement backlight IF you could get it replaced). A new inverter is likely to be in the $50-$75 range.
Any difference when working with batteries as opposed to AC?
If so then it could be related to a power saving setting. But if your screen is completely dark, only visible with a light flashed at the screen, then that's not it.
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