Re: Samsung PN64H5000 clicking when powered, then stuck in standby

Major thanks to Bobby Kolev (at Coppell TV, which I'm not affiliated with), and an unnamed tech at Quad City Electronics (again, no affiliation - I'm just giving props for the excellent help. The former sent me the video link in my last post, which allowed me to properly test the power board. The latter helped me properly test the Z (X?) sustain board to discover it was shorted.

Bought a new Z board on ebay & popped it in. TV is once again working - result! Who knows for how long, but for someone...

Re: Samsung PN64H5000 clicking when powered, then stuck in standby

Minor update: with the help of [URL="https://www.youtube.com/watch?v=qIue5Sd6fzE"]this video[/URL] forwarded to me by a very kind tech (see vid for source, if you're interested), I jumpered the Vs_on and Ps_on pins, and was able to measure correct voltages at all the power board connectors and test points.

Then another helpful tech at a different shop suggested I check the Z-sustain (X-sustain? It's the board connected to the power board which *isn't* the main board.) for shorts. Sure enough,...

My PN64H5000 shut itself off/on/off a few times in succession last night, then refused to turn on again. When I first plug it in, I get five clicks coming from the power board, and the red standby light on the front goes on and off, as does the little green LED on the logic board. After that, the red standby light comes on after a couple of seconds and stays lit, but the TV will not power on. Confirmed by leaving it unplugged overnight.

I opened it up, and didn't see any bulging caps, burnt PCBs, or anything else obvious. Tested the two fuses I saw on the power board (one removable,...

Re: Samsung PN64H5000 flickering magenta problem

Here are the board images. The power board appears to be a bn44-00690B, and is the source of the clicking noise when first plugged in.

I'll post a separate thread about the new won't-power-on problem, but if anyone's still watching this thread and spots something, feel free to post here....

Re: Samsung PN64H5000 flickering magenta problem

Minor update: while watching t.v. last night, it powered off/on/off a few times in succession, then refused to turn back on. I tried the unplug / hold power button gag, but now when I plug it in, it clicks five times and still refuses to power on.

Managed to wrangle it onto the couch and pull the back off, and didn't seen anything obviously burned, nor bulging caps. Will post photos tomorrow.

Re: Samsung PN64H5000 flickering magenta problem

Thanks for the reply. I did a quick google for test point locations, but didn't come up with anything for my model. Is there a source you could point me to for such info?

My 6 year-old Samsung PN64H5000 plasma t.v. has developed a flickering problem recently. It primarily manifests as a magenta color that flickers on and off. It's most visible in areas that are blurred / low contrast / subtle gradients. But it's also visible as a very slight brightness flicker in other scenes, even when the magenta cast isn't present. It happens most in bright scenes, but not always. It's also intermittent - it will sometimes go away for several minutes.

I'm sure it's not the cable, the video source, the files being played, or the HDMI input, having switched out...

Re: New Members - please post your introductions here

Hi, badcaps! I'm a vfx artist from NYC. I've got an electrical engineering degree, but it hasn't seemed to help me fix my t.v. ;-)