Re: Samsung plasma tv pn50a450 issue

Hey tom, i have taken alot of the red out of it. But i notice that when i ajust Yfr to get rid of the redish tinge it is very quick, on one end i flood it with red(i even see something burned in i can't normally see) on the other i can almost clear it up. But it seems i can either have no red and poor colour with great black, or, a little red, great white and good colour.

I have tried giving it a little more on Vs (up to 209V) it doesn't seem to effect the tinge at all.(only Yrr and Yfr effect it)

I've been having...

Re: Samsung plasma tv pn50a450 issue

Thanks for the suggestion Tom66, Mal-Discharge was definitely part of the puzzle.

(assuming up(clockwise) down (counterclockwise))
I tweaked Yrr down(quite a bit, 1/4 turn) and Yfr up (just a little bit)
-Vsc down to -187.2
I turned down Vs to 201.5
This resulted in Ve dropping to 97.4 (with no intervention from me) I turned it right back up to 100 without any negative effects

My Stock Values are
Vs 207
Va 56
Vsc -190
Ve 100

This has cleared up my picture...

Re: Samsung plasma tv pn50a450 issue

Indeed i did(factory reset from service menu), sorry i forgot to mention it. All of the tweaks i've done to the hardware/software of the tv, haven't seemed to help with the excessive red in the screen.
I should also note, i've noticed the red is the worst at the edges(both top and bottom left and right) of the screen, and seems to be less towards the center(but still there).

Hi there everyone, this would be my First real post. Thanks to everyone who takes a look and anyone who has a suggestion.

To Clarify it is a Samsung Plasma, PN50A450P1DXZC, from 2008, with checkerboard 3D support

So i'lll give you a little rundown, i got this tv, free, broken(as i get alot of my stuff) and decided to give a crack to fixing it. My first plasma. Anyway i'm no stranger to repairing electronic devices, the first thing i did was crack it open, replace a few clearly bad caps (with mostly the same rating other than i used a 63v 100uF on the Y board in place...

Re: New Members - please post your introductions here

Hi all, Just leaving a little intro as a first post to this site. I've been reading around for a while and i have seen many great forums. Thanks in advance or any help, and for all the great resources i've scoured from this site.

I'll start by saying i'm no beginner when it comes to repairing devices, i've been doing hardware mods for years. My soldering skills peak at soldering wires to a flat flex cable with .5mm spacing. Otherwise i've been fixing tv's, monitors, computers (hardware), And various other electronics....