Hi. I have LG LM6700 model TV. Suddenly video not coming But audio is good. I am able to change channels, increase volume..etc. LED is working. i tried Flash Light Test. There is no video at all

What is a BPL TV?

main board replace

Not a good sign... reboot, and try again, if no display but audio, then check HDMI cable or whatever source cable you have by wiggling it to see if video comes back, if no, then most likely repair..

Sounds like you might have a defective unit, or the source that is connected to your tv (cable box, dvd etc) is going out. A lot of times if you have a cable box, glitches, loss of sound and/or color are because of the quality of the input source. Try changing the channel. If the problem is the same on any channel - or on your dvd/xbox, then it is probably a defective tv. You may be able to get it exchanged through LG. Hope this helps! Good luck!

Hi srinivas_327,

This is common for some sansui televisions,

All you need to do is to go in the audio settings and turn "ON" the AUTO volume option .
This will help all your channels to have a similar volume , so you won't be surprised by sudden increase in volume.

Hope this helps ...:)

This is due to the signal reception. Some channels are broad casted with strong signal strength. Therefor you will find the audio is louder than other channels. Also, if there is voltage fluctuation/surges/spikes that is also responsible for suddenly increasing the volume. Best is to put a voltage stablizer

SAP stands for secondary audio program. It can be used to broadcast another audio soundtrack, like spanish etc. Look on the remote for an audio button and try that. You can look in the menu if that doesn't work. If you find it, make sure it is off. If you can't find it post this problem again with the brand name and model number of your tv. I will try to find the solution.

Try One of your working TVS and connect it to your cable outlet of the TV that is having problems. If that TV Does not work then there may be a degraded fitting or the Leg coming of the splitter to that outlet could have a Low Signal Problem
Next Take the First TV that was not working properly and put it on the cable outlet of one of the TVs that is working properly and if the TV set works on that Channel then you know it is not your TV that it must be the cable

this looks very much like a problem I once 've had (and later found the solution by accident). When you go into the menu of the remote control and press the "automatic channel search" function you can always specify from which "source" the signal is arriving either 1, from antenna, (ie. over air) or 2, from cable or 3, from satellite. Then the decoder searches and finds a bunch of station in its reach. Once (while hooked up to an antenna) ,I had accidentally made it do the station search under the "cable" header instead of "antenna" and it found the same stations as the one's I've had before,(over antenna) but some stations suddenly had no more audio. Because I was unaware that the set was programmed under the cable header I could solve this strange mystery only much later when I reprogrammed it one day and it searched the stations under the Air-Antenna header, then suddenly all the stations were coming in properly, with good image and full audio. ------If this doesn't solve your problem then search under the menu of your set if at another part of it you can specify some other similar options like Antenna-Cable choice. I'm quite sure its easy to correct. good luck Alex