I was watching it and it made a popping sound,and the video quit,

La televisi?n de pantalla plana de 42 pulgadas de Toshiba hace que el sonido salte mientras que la televisi?n funciona muy bien. Parece comenzar a sonar el sonido despu?s de que haya estado encendido un poco.

LG 42LS5700 - LG.com

www.lg.com > Home > Support > Product Support

LG ElectronicsTV/Audio/Video; TVs; 42LS5700 ... TV Support Landing Page - HDTV/Netcast/webOS 1.0/webOS 2.0 ... Adjusting Picture Settings - webOS 2.0 Video ... quality and convenience of complimentary shipping when buying directly from LG.com. ... Curved TVs · 22 Inch to 29 Inch Class TVs · 32 Inch to 39 Inch Class TVs · 40 Inch ...

Amazon.com: Customer Reviews: LG 42LS5700 42-Inch ...

www.amazon.com/LG-42LS5700-42-Inch.../B006ZH...

Amazon.com, Inc.LG 42LS5700 42-Inch 1080p 120Hz LED-LCD HDTV with Smart TV (2012 Model). byLG. Size: 42-Inch ..... images are nice and crisp when viewing HD content.

Widescreen TV Black Screen - Repair LCD LED PLASMA ...

? 3:41
https://www.youtube.com/watch?v=RbZncfiOXQA
Jul 13, 2011 - Uploaded by FixItUrselfDummy
Fix your tv with black screen blinking light, popping sound noise. ... Watch QueueQueue ... TV Black Screen - Repair LCD LED PLASMA - Problems SONY LG .... I have a 60 inch samsung DPL tv how can I stop the humming or ... What do I do if my tvturns on but its just a black screen so sound no picture?.

I have the same problem. You need a new audio/video board.
Here is how mine sounds:
http://www.youtube.com/watch?v=yAXqWIhQYa4

Tries Audio reset back to factory setting.Should get sound back.

Ur backlight video inverter board is dead.Buy parts like capacitors for replacement with soldering or buy the whole board.Tries these websites.Shopjimmy.com,Partstore.com or Ebay.com.

Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.

the bose has to be hooked up to the cable box output and video 1 on the bose. This is the only way it will work

You have the TV connected to the cable box with an HDMI cable, I'll bet. The problem is with the cable box. If you unplug the cable box and plug it back it it will reboot and proabably work. You should connect the cable box to the TV using component cables and you won't have this problem again.

depending on if the dvd player has functions such as video input , but not likely
if the plasma only has certain video inputs and not the cable input you could use the vcr to get the signal

You need to replace the lamp in this set. The "pop" you heard was the lamp popping.

Josh