Re: Samsung LN40B550 turning off after 5 min.

Thanks! I found it and added the cap. seems to be working!

Re: Samsung LN40B550 turning off after 5 min.



OK thanks. Can you help me figure out which Cap that would be in the BN44-00199A board? The schematic was in my last post. I don't see a C102 and am not exactly sure what that equates to in this circuit?...

Re: Samsung LN40B550 turning off after 5 min.

I am having a similar problem with my Samsung LN40A500T1F TV. While it doesn't overheat, it will go through several reboots before it finally turns on. Once it finally comes on it seems to work fine. I replaced all the large electrolytic caps in the 5.1 VDC and 13VDC circuits. Attached is the schematic for the power supply board (BN4400199a) Also attached is a screenshot where I've highlighted all the caps I replaced.

The 13 Volt supply will start at 14.1 VDC, then dip to 12.4 VDC and go back up to 14.1 VDC during the...

Re: New Members - please post your introductions here

Hello, I am Halfwayhillbilly living in West Virginia and working as a controls technical support engineer. It's been a looooong time since I've done electronic troubleshooting down to the component level, but I am starting to get back into it. This forum looks like a good place to get some help when I get stuck!