Watching TV and all of a sudden a loud pop came from the back of the set. Doesn't turn back on after unplugging.

good first shut off the outlet for what is looking like this with your tv connection problems with the drain tube of images giving us the inside source for capacitors in a technical lead for the electronic exchange of capacitors and diodes for your device

That's an interesting issue you posted, yfz45011959! Try unplugging the receiver's power cord from the outlet for at least ten seconds and then plugging it back in. If that doesn't fix the problem, let me know what type of receiver you have. The model can be found on the front panel in the bottom left corner.

Hope that helps!

The lamp is most likely needing replacement. Replaceing the lamp is a very easy proceedure on that model.I am pasting a pic where the lamp cover is located on rear cover. Remove the screw and the lamp is behind the lamp door.

Watching tv all of a sudden loud buzz noise,I shut off unit turned back on loud buzz came back about 30 seconds later loud pop pop then smoke came out of top of unit, i'm not please as this unit i bought about 17 months ago @ Canadian Tire Belleville & warranty is now not covered, pobably will never buy another Proscan product but am more concerned there could be a fire caused buy this than getting unit replaced

If you have a Sony DLP, then the loud pop you heard is your lamp.  The lamps last approx. 4K-6K viewing hours.  Read your manual for replacement part number to reorder and very simple to replace yourself.

first. unplug the set for 5 minutes and see if it will reboot. if it does not the you have 2 problems, the chassis is also bad. next open the lamp door cover, it is behind the speaker grill, and behind the lamp door.
take out the lamp and see if it has broken on the inside if it has it needs to be replaced. mits will send you one i believe it is about 100.00 the number is 915P020010. if the lamp looks ok then the color wheel has probably fallen apart.if this is the case the light engine need to be repaired. check out www.tv-techs.com

I guess loud sizzling was from High Voltage Splitter in your TV. HV seems cracked and leaking high voltage.

You can observe and confirm it by removing back cover and power up TV from distance and check at rear of TV. Please take care and there should be little dark to observe arc from HV splitter.

If this is the case, HV splitter available in Part Store.

Bad IHVT ( transformer ) = Part # 239111 use original only, no cheap subs !...............T.

sounds like the lamp has shattered. check the lamp

Thats the CBA board heres a link where you can get one but its expensive.
http://www.partstore.com/Part/Royal+Philips+Electronics/Philips/313926720561/New.aspx