My tv made a popping noise and then shut off wont

You cannot change the aspect ratio. When a program is transmitted in 408i you will get a small picture in the center of the screen surrounded by black bars. This not the fault of the TV. You can try using the zoom feature, but the picture clarity will suffer.

Easiest TV repair - How to Fix Power [TV turns off, freezes ...

? 6:44
https://www.youtube.com/watch?v=OKklZpTGBGU
Apr 27, 2014 - Uploaded by Keith Fox
I demonstrate in this video how to repair a Sanyo by swap out the... the Sanyo DP47460 that I'm having an issue with. after ~ 40minutes of watching, if I attempt to change the channel or adjust the volume, the picture/screen freezes. ... After ~ 20 seconds, theTV will automatically shut off, then turn back on.

SAMSUNG TV REPAIR- TURNS OFF RANDOMLY - YouTube

? 9:24
https://www.youtube.com/watch?v=7Rj22VNhKXg
Jun 25, 2012 - Uploaded by Tampatec
EASY HOW TO FIX SAMSUNG TV- TURNS OFF RANDOMLY Clicking ... Hi, I've got a Samsung LED TV that switches off after20 seconds and remains off. .... after about couple of minutes, is this the same problem with the tv in the video? .... 10:32. How to repair a Samsung LCD TV with a flashing standby ...

TV Turns On, Backlight Inverter Immediately Turns Off TV ..

capacator problim

If you wish to get more details about firmware update, check this link. It has firmware update procedure to many model TVs, with illustrations. http://electronicshelponline.blogspot.com/
Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

loose solder

Metric screw M5 or M6, you can get them from HD or LOWE's.

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Here's one place to download the manual:
http://www.retrevo.com/support/Sanyo-DP52848-TVs-manual/id/23110dj889/t/2/

And here's the place for the stand:
http://www.shopjimmy.com/stand-from-sanyo-dp52848-1.htm

My camera was showing lens error 12&25 and then shutting off. I tried gently trying to twist and pull the furthest out part of the lens and it popped back into place easily. It made a noise when it did this, and then i turned the camera off, and the lens went back in!! Completely fixed now!!

When the set is turned on, the computer senses that something is wrong and immediately shuts the set back off. The standby LED will then blink a code, a certain number of blinks, to indicate exactly why the set was shut down. It is possible that your audio output IC is shorted, as this would make a pop or strange noises in the speaker just before the set shuts down, which it does to protect your speakers from burning up. The set should be looked at by a qualified tech familiar with Sony TV's.