Akai 46in rear projection

This set with Akai is actually made by Samsung (they own and use the Akai name).

If lamp light etc and you have heard a cracking sound it may be the color wheel.

You can remove the lamp and look where it faces--look and the wheel can be seen----is it shattered or missing plastic pieces?

The wheel commonly fails in this fashion and is turning at over 12,000 rpm. The set will detect if the wheel is stopped or moving too slow and just what you describe will happen.

Wheel is widely available and You Tube has video instructions for replacing them by model number.

Questions?

Replace the lamp, after you replace the lamp reset the lamp hour meter good day and best regards.

The tv have a colors wheel,have a whinning high pitch sound,mean colors wheel is warping not spinning right any more.The colors wheel is dead,must be replaced.The tv have high pitch sound,shutdown the projection lamp.The projection lamp might be dead or not?Not yet determine dead or just shutdown by the nonfunction of the colors wheel.

check the lamp out if the lamp go to this website http://www.discount-merchant.com or if the lamp is not the issue maybe can be the board in the same page you can find the parts that you maybe would nedd
regards

It's only a problem when you try and finance a new bulb ($400.00 for mine). But seriously, the only "problem" is that an older bulb exhibits much lower light levels and the picture has crappy color, brightness and contrast. Keep a coffe can around and put a few bucks in it everytime you watch it. when the bulb finally blows you'll have a couple hundred bucks in there towards a new one. (a little easier to handle)

Packman

if it is a panasonic pt-50lc14 then you will need a new bulb. you can find them online, do a yahoo or nextag search for the ty-la 1000 bulb and you can find them for around $100...

check for popped or raised tops on caps in power supply. also try unplugging set for 5 minutes and resetting it. How about does your color wheel spin up? if your color wheel don't startup then your tv will also shut down. also check all fans they all should be running at turn on. if all fails i would say its your light engine.

I just got this tv free and it will stay on for 15-30 minutes and then turn off. Some times it will stay on all day, though, so its kind of weird. I have the 5499HD

I had this problem in a 46UX50B (I think that's the model), and it turned out to be some capacitors in the power circuit(?). After the service guy replaced those, it hasn't failed to come on since.

I sounds like a bad filter in the sudio supply circuit finally took out the sound output chip or the power supply that controls the sound circuit. its a soliud state set and there are no user replaceable parts inside this set. Unless you have had solid state repair experience, please be safe and call in a pro to assost you in this repair. good Luck ps Please rate this thread