Poping sound, white specks and what looks like sparks
Recently when my TV is on I can heart a slight popping sound and if the screen is dark or black when this happens there are tiny white specks that appear and disappear with each spark. Also from the back of the TV I can see little flashes of light coming from inside with each pop. Please help, what can i do about it?
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Hello, if it's a Mitsubishi DLP set, contact Mitsubishi, they are sending out the chip at no charge to repair the problem, but they do not include the labor. if you are handy, there is a video on how to do it, otherwise when you receive the part contact a repairman. If they know what their doing, they should be able to do it there for around $100-$135.....tks
if you can get a menu when you press the menu button, reset the settings to factory default. if you don't get a menu, the color wheel or the dmd chip is bad. either way, you'll have to replace the entire optical engine. and unfortunately, infocus no longer has any more in stock.
I guess your TV is DLP.
Please notice the follow symthoms:
When you on TV, did you hear some strange noise from the back of the TV. If yes, the color wheel needs replacing.
If no, check the lamp. Take a look to bottom of lamp, you will see white pot or sometime a pop up there due to lamp cycle is going to end. When changing lamp, check the ballast and power sup, too. If you see caps are poping up. Pull out those board and replace the poped caps.
a capacitor on the DM or convergance board has fried and will need to be replaced. You can use a multi-tester or capacitor tester to test each one. Also look for black burn marks and swelled or black capacitors
Pop sound is probably the Lamp or maybe the color wheel. When you unplug and try it on do you hear a whirling or winning sound ? Is it followed by a slight ticking sound ? If you get the whirling and a ticking sound it's probably a bad lamp. If you don't hear the whirling sound you may have a bad color wheel. The parts are both made of glass. The pop you heard was one of them breaking. If you can't tell, order a lamp you will need to change it eventually anyway.