Samsung LE32R7 3BD LCD will be watching TV for about fews hours and all of a sudden the picture will go funny lines will appear. I switch the TV off unplung from the main, wait a few min and then put the TV back on again and it working fine, and a couple of hours later it will do it again.

SOURCE: Samsung LN-S4041DX 40 in LCD TV

Hi. You can try to go into service mode and reset the LCDTV to Factory Default. This will clear out all buffer over run's and any software related issues. It may fix the problem or it may not. If this doesnt fix the problem than you need to have a qualified Technician to look at it. The problem is in the AV circuit board, a technician who is qualified to repair electronics at circuit board level should be able to repair this problem rather quickly and inexpensively. Most technicians who do not have the expertise in repairing cicuit boards to component level would rather replace the whole AV board than repair it and this will be rather expensive.So talk to the repair shop before you drop the TV off.

Be very careful when accessing service mode. I suggest to write down all information in all areas before proceeding to a factory reset. If you do not record all values correclty you run the chance of not being able to use the TV again. To go into Factory Service mode, use the original remote and in this sequence push POWER OFF-MUTE-1-8-2-Power ON, the set will turn on and enter service mode, if you hit all previous keys correctly. If it doesnt try again. When you are done hit POWER OFF and this will exit service mode and save the data.

SOURCE: When I turned the tv on only vertical lines appeared

I talked to a Samsung support helpline and it needs to be taken to a service center for repair.

SOURCE: 46" Samsung LCD, no sound output whatsoever

First try hooking up a different source such as a DVD player or Cable box and see if you have audio. If you do then check the audio output from the computer. If you do not have audio then make sure the tv audio is up half way and turn off the set. When you do this you should hear the down chime provided you have the chime turned "on". If you do not hear the down or up chime then the sudio circuits on the Main bd are bad and the Main bd will have to be replaced. A quick way to check to see if the audio circuits are working is to listen for the up or down chime when turning on of off the set coming from the tv speakers speakers.

SOURCE: Samsung LE40B550 - No Picture

Hello,

I had exactly the same problem with my LE40B550 which I bought in July. I phoned the place I bought it online (eBuyer) and they put me in contact with a Samsung repair centre who fixed it under warranty. It took them 2½ weeks to fix it and get it back to me. The note that came back with the TV said they had replaced the IP board. I think the part number was H40F1 9HS.
The repair centre paid less than £50 for the board (it shows on the returns paperwork).

If you only bought yours in August, and haven't had it fixed yet, I suggest you just get in contact with whoever you bought it from and get it done under warranty.

SOURCE: HDMI input is not working.

That HDMI port hub,it shorted.It have intermittent problems,it will work sometimes,sometimes not,best just skip that HDMI port hub.I know i have a samsung LCD tv it have 6 HDMI ports hubs,3 AV RCA cables input functions,and a S-Video input cable port.That plenty,so don't care about that HDMI port hub.