Originally Posted by ufjd92
I did the voltage adjustment myself. First I upgraded the firmware from the Samsung website, which did nothing. Then I removed the back panel (with the stand on) and adjusted the screw until the banding went away. I had the picture paused on commercial with a white screen and black text and put a mirror in front of the tv so I could see the pink bands disappear as I turned the screw.
The pink banding is now gone, though I think the picture might be a little soft now (not sure if I am imagining that or not). The fix cost me nothing except an hour of my time.
Thanks for the post and certainly the "useful" information. The rear panel removal with the stand attached helps me considerably. I now have a better idea of the space I need after I remove it from the wall.
The "firmware" that the TSB mentions isn't available from the Samsung website and is restricted to "service personnel" with a subscription to their service information data base. Would it help? Who knows. A couple that have mentioned service visits haven't mentioned specifically if the "firmware" was applied or not. I would have thought someone would notice the use of the "service remote" and a USB stick.
I'd like to think that the VS adjustment "sticks" for you and you get "many more" service hours from your plasma. You didn't mention model specifically or maybe the production/purchase date of yours either. I'm wondering if maybe it's important and effects how responsive the particular model is to the adjustment and maybe the "firmware".
I had considered the "mirror thing" but looking at a few snapshots I couldn't confirm that the rear cover could be removed without the machine maybe being held upright by second pair of hands or not.
You've helped considerably - with the service facility 50+ miles away maybe this actually is a DIY. It would be good that anyone who had received a service visit for the adjustment could confirm that there actually was a "firmware" upgrade applied. The service facility I spoke with "hinted" that it would be done but 5 minutes later in the conversation he hinted that all "firmware" would be available direct from the Internet and the TSB hints that it certainly requires a PC to accomplish the task. I was curious that maybe the "factory/service" remote could inquire maybe directly a different service area of the menu and facilitate the "firmware" upgrade maybe directly from the Internet.
Again - THANKS !!!!!!!
Originally Posted by Hifi4Hobby
I think you need to check the label on the panel that indicates the Vs and Va as well as Vsc and Ve. Get the reading to the correct spec and see what's the panel reaction will be like before any custom tuning. I am sure that these panel left the factory with the reading calibrated so it should be the best parameters used. I aint sure if we're to go beyond these numbers by too far can have a adverse effect on the panel especially the lifespan. There's a reason why these are covered under the metal sheet instead available on the user manual.
This was something that I was concerned about also before even participating in this thread. That was the reason I had posted asking if maybe anyone had purchased or had been able to access the "service manual" that's available on USB, CD or paper. A Samsung inquiry mentions 7+ days likely for the ship. Add 3 to that depending on the shipping method it could be 10 or so days away.
Those values may very well be important along with maybe the "firmware" to make the "fix" stick. Don't know. Slowly information is becoming available. Maybe I'll just wait the however long it takes to get the FSM and see if more information surfaces.
I did read a post somewhere that a service visit was done and all of the information you mention was checked BUT the results were the machine was removed to the service facility for service. I never saw a response as to what was the final outcome/solution.
I thought also that there might be more information with the TSB that mentions the "firmware' and adjustment procedure applies to maybe certain runs of the machine or maybe the boards used in the original build.
Maybe a particular build requires this plus this (parts) and then the application of the "firmware" and the VS adjustment.