Re: Samsung SP-P4231 "Sparkles"

Yes. That is what I was saying. I was suggested to heat the logic and see if the display changes..but I wasn't give any specifics on where on the logic board to heat, how hot to get it and for how long. I don't have a hair dryer, but I do have a heat gun. So I know leaving it in a certain spot will eventually end up liquefying some of the solder joints. How do I go about troubleshooting the potential issues you explained or would it just be more reasonable to get a new _____ Card that those components belong to?

Re: Samsung SP-P4231 "Sparkles"

Oh and I was having a brain fart on the fuses.. they were good as well. For some reason I said fuses, but was thinking resistors. All of the fuses checked out good. So, My question is, What would cause the 60V drop in Ve? A changed value or bad resistor in the a parallel, but that doesn't explain why the Variable resistor doesn't have any effect on voltage reading.

Hey everyone! Was hoping someone could help me with my Samsung. Here is my original post on reddit to detail my issue,


I was able to fix the VS from being too high, but the Variable resistor for Ve has no effect on the voltages at the test point. I have found a service manual for the S42SD-YD05 through YD07 (attached), but my PDP is YB03, which I haven't been able to find online. Also, I found the schematic for the PSU (BN96-01217A), but I haven't had much success using it to troubleshoot.

I really hope someone can help me out with this.
Thanks....

Re: New Members - please post your introductions here

Hey everyone. The name is Trey and I am having TV issues. Im in the military and teach electronics for a living. Feel free to ask me whatever.