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PN58C8000 Pink Banding - Page 4

post #91 of 142
Wow. All of this, along with the micro spider cracking posts I remember on the D8000 (or E something, can't remember), make me glad I'm considering selling the F8500. Samsung's quality control really is garbage.
Edited by Playdrv4me - 12/29/13 at 9:00am
post #92 of 142
Quote:
Originally Posted by ufjd92 View Post

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.

I had this same problem on my D6500 and adjusted the voltage to get rid of it. It worked it no longer showed it's ugly head. Another good test that I found wast the chase scene, the one take place up in the clouds in Dispicable Me blu-ray , when the protagonist is chasing the antagonist after the antagonist stole the freeze ray. This is where the magenta distortion or pink banding appeared then disappeared. When things were very bright and lot's of white , high contrast on screen with the clouds. It would appear then disappear frequently throughout the above scene.
post #93 of 142
Quote:
Originally Posted by walke108 View Post

I am curious if anyone has done this with a multi meter, and if so, where exactly to measure the voltage? Is there a specific spot in the V's area? I'm an amateur with the meter but I think I would feel better changing it to what the spec sheet said.

Black probe on a screw holding down any of the boards , any of the metal screws in the back of the set and positve probe on the copper contact it looks like a copper colored roundcontact pad. Touch the negative to a screw, be carefull not to slip off and the positive to the copper pad it should be near the actual trim pot, the plastic screw you adjust to change the voltage. I forget what you have to set the multimeter too in order to give you a proper voltage reading. I wouldn't change any other voltages just the one that will fix your pink banding and magenta distortion.Make sure you identify the correct voltage trim pot. I would adjust until the pink banding or magenta distortion is completely gone, whether this is to voltage spec or not . It might have not been adjusted correctly from the factory or things could of change with your set. I am not sure. Good luck.
post #94 of 142
I performed the the adjustment on a C500, as Veets outlined.

FIXED!

Very happy with the results.
post #95 of 142
Just got off the phone with Samsung. They transferred me to their executive customer relations. I explained to them the problem, I even showed them the service bulletin and they still wouldn't cover the repair. I'm going to have to open it up and fix it myself. This will be the last samsung product I ever purchase. Their customer service is a joke.
post #96 of 142
Fixed it today during halftime of the game. Thanks Veets. It was really simple and fixed the problem. This will be my last Samsung product ever though.
post #97 of 142
Quote:
Originally Posted by bobby james View Post

Fixed it today during halftime of the game. Thanks Veets. It was really simple and fixed the problem. This will be my last Samsung product ever though.

Quote:
Originally Posted by bobby james View Post

Just got off the phone with Samsung. They transferred me to their executive customer relations. I explained to them the problem, I even showed them the service bulletin and they still wouldn't cover the repair. I'm going to have to open it up and fix it myself. This will be the last samsung product I ever purchase. Their customer service is a joke.

I made the same "adjustment" to my C8000 that was something just over 36 months old and I inquired Samsung also and was discouraged at the customer service responses BUT you mention you felt they "should cover the adjustment" - you never mentioned age or model but did you "really believe" your purchase included "service for life"? I don't believe the TSB is actually a Samsung production but rather a "third party" observation of a possible fix after likely rebuilding/repairing several boards. They're a Samsung "partner" for parts recycling. I wasn't able to actually find a service facility that was interested enough in the TSB to investigate the sourcing of the "software update" that's referenced.

I'd say it's fortunate that the theoretical fix was "leaked" - I was willing to pay a service call for the adjustment if they could apply the "software update" as a part of the repair. Would it have made a difference? I'll never know.

I'd say that if you're concerned that it required service you should have been an "extended service plan" purchaser when you bought the unit. I replaced mine with an F8500 but I shopped hard for the VT or ZT first. I'm certainly NOT a "fanboy" but in none of my posts did I ever say "never". I did this time buy the first ever "extended service" plan that I've ever considered.
post #98 of 142
No I didn't say I should get "coverage for life". But when you put out a service bulletin in May of 2013 for a product that was released in 2010, I believe you should cover that repair. Just like a recall for a vehicle. And actually, I did purchase the 2 year geek squad protection. Wish I had got the 5 year because they wouldn't even have tried to fix it and would've just given me a new set. I stand by my statement and will never purchase a Samsung product again.
post #99 of 142
Hello all. I just wanted to share my satisfied outcome after recently pulling my pn58c8000 off of the wall to adjust Vs for the pink banding. The sticker inside advertised the Vs at 210v. My initial meter reading was exactly 210.0v. I expected it to be below the voltage on the sticker but ok. I turned the pot incrementally to 213v as I've read earlier in this thread. The 3v increase helped with the banding but only about 50%. So I decided to keep going until mostly all of it disappeared. Id say 99%. This occurred at 215.0v. Thats where i left it.So I hope a 5v increase isn't detrimental. Put the cover back on and all 750 screws and rehung the Samscrap. I'm so used to seeing pink/purple bands on mostly all of the screen and now there's virtually none. This is very strange. Thanks for all the info kind folk.
post #100 of 142
Oh, how I love these technical blogs! Just did the Vs adjustment on my 7000, and the banding is gone. Woo hoo! I've been putting up with this for over a year, and finally decided to investigate. My Vs was only 108.8 prior to adjusting, so it's no wonder the banding was so bad. It appeared to be clear at 110.3, but I gave it a little extra for good measure... at 110.8. The final day of Winter X-Games is looking great now! Even with all that bright white snow... no pink banding! Thank you so much to all who shared this valuable tip.
post #101 of 142
Quote:
Originally Posted by Knight Owl View Post

Oh, how I love these technical blogs! Just did the Vs adjustment on my 7000, and the banding is gone. Woo hoo! I've been putting up with this for over a year, and finally decided to investigate. My Vs was only 108.8 prior to adjusting, so it's no wonder the banding was so bad. It appeared to be clear at 110.3, but I gave it a little extra for good measure... at 110.8. The final day of Winter X-Games is looking great now! Even with all that bright white snow... no pink banding! Thank you so much to all who shared this valuable tip.

Your "numbers" aren't a match to either the "as shipped" or "recommended" after VDC - settings. Either your DMM or whatever is in error or you just "cranked it" until it went away. If it's still sitting there with the maybe 20 screws and the panel removed you might want to conform what it is that you've actually done. It's my understanding you want to just eliminate it and forget about "the for good measure"!! More isn't necessarily better!
post #102 of 142
Quote:
Originally Posted by WVZR1 View Post

Your "numbers" aren't a match to either the "as shipped" or "recommended" after VDC - settings. Either your DMM or whatever is in error or you just "cranked it" until it went away.

Thanks for the advice. You actually caught my error. My reported voltages should be 100V higher than I stated, which puts them very close to the spec I've read here. The adjustment required only a tiny turn of the pot -- barely even visible -- probably less than 1/20 of a turn. It's back together now, so I'll probably let it ride and see how it holds up. This TV is several years old now, and I've never really been delighted with it -- it's had the notorious, annoying buzzing noise since day 1, and the techs weren't able to resolve it. So, even though I really don't want the cost of replacing it, I would be kinda bitter-sweet. But now, at least it looks better than it ever has!
post #103 of 142
I have a PN58C550 with Pink Banding. It's been getting worse for the last two years. I was about to buy a new TV until I found this thread. Last night I unscrewed the back panel (don't forget the screw by the inputs) and checked the voltage with a multi meter. It was at 210.2 so I just moved it up to 213 even and I closed up the TV. The Pink Banding is now completely gone and the picture looks great. Such an easy fix for an annoying problem. Thanks Veets! I'm sure the Logic Firmware doesn't do anything. I had called a Samsung tech from my area and told them my problem. He knew the exact model I had and quoted $200.00 to update the logic firmware AND adjust the voltage. I saved myself $200.00 for about a half hour of work.
post #104 of 142
Quote:
Originally Posted by jgarza15 View Post

I have a PN58C550 with Pink Banding. It's been getting worse for the last two years. I was about to buy a new TV until I found this thread. Last night I unscrewed the back panel (don't forget the screw by the inputs) and checked the voltage with a multi meter. It was at 210.2 so I just moved it up to 213 even and I closed up the TV. The Pink Banding is now completely gone and the picture looks great. Such an easy fix for an annoying problem. Thanks Veets! I'm sure the Logic Firmware doesn't do anything. I had called a Samsung tech from my area and told them my problem. He knew the exact model I had and quoted $200.00 to update the logic firmware AND adjust the voltage. I saved myself $200.00 for about a half hour of work.

What makes you so sure the "logic FW" doesn't maybe complete the "service" and maybe give "longevity" to the VS adjustment. If I were you I'd see if maybe he/the tech would put the update on a USB stick for you. I had attempted the same thing but the shop was a considerable journey and I finally scrapped the idea. If you had or have the opportunity I'd have a discussion with the tech again. I believe you've "maybe" assumed to much.
post #105 of 142
Quote:
Originally Posted by WVZR1 View Post



What makes you so sure the "logic FW" doesn't maybe complete the "service" and maybe give "longevity" to the VS adjustment. If I were you I'd see if maybe he/the tech would put the update on a USB stick for you. I had attempted the same thing but the shop was a considerable journey and I finally scrapped the idea. If you had or have the opportunity I'd have a discussion with the tech again. I believe you've "maybe" assumed to much.

 



Maybe I did assume too much. If the Pink Band comes back I'll update the thread. Don't get me wrong, if I had the logic FW I would update it. For me it's not worth the $200 especially since Samsung tried to fix the problem with USB stick they sent me with a firmware update a year ago. It of course did nothing to remedy the problem even though it technically did update something. Unless the VS adjustment pot magically turns itself back I don't see how the adjsutment would not be permanent.
post #106 of 142
As the panel ages it may require a higher Vs. The potentiometers can also drift. The firmware update alters the drive algorithm as the panel ages, so should improve longevity.

I have seen on another forum, a Pioneer Kuro with 70,000 hours on it, still going strong, but the Vs had to be upped to 240V! Crazy high voltage. But, it did work, so...
post #107 of 142
Also an owner of a PN58C550, since September, 2010. Started noticing the banding around 10 months ago. Also contacted samsung customer relations about this issue and got the same response; sorry, you're out of warranty. Also like many others, will not even think about purchasing another samsung product. I'm sorry I didn't pick up a panasonic ST60 before they stopped production. FWIW, I am going to pull the back cover to try the Vs fix. will report back with results. have to wait until i can get assistance removing it off of the wall.
post #108 of 142
I have a PN58C8000 that started Pink Banding about 1 year ago barely noticeable, then in the last couple of months it bloomed to rich purple/pink band that in a snow scene looked like a Barbie Dream house exploded on the inside of my screen (upper right area the most in a square). Contacted Samsung support, could not enter anything on the support site as the model drop down didn't work (I.E, Firefox, Chrome all tried). They first tried the does it display on the test image? Which is a blue background and blue drowns it out. Then a factory reset. Which knocked my wi fi dongle back offline and dropped all my settings completely out but no change (if you've had a calibration make sure to document all of the settings prior to a factory reset, it will lose them). At this point I pulled out the ASC20130528001 bulletin that was posted in this thread and said to the person on the call this looks exactly like my issue. They said O.K. we will arrange a tech. They had to hand enter the request and said someone will contact you within 24 to 48 hours and that you will have to pay for the tech call since it's out of warranty (purchased in Aug 2010 when it first came out) and any additional parts that might be required. Within that timeframe the SK electronics firm that does the servicing in my area contacted my wife and the tech was scheduled. He arrived had the printout of the service bulletin in hand and here is what he did....exactly what the bulletin described. Firmware update to Logic Board using Service Remote, changed the banding to very slight almost light / white. He then with my assistance turned the TV around and pulled the back off and adjusted to the recommended voltage, brought up the white test screen and fixed. He screwed on the back and we put it back in place and we are now up and running and very happy with this TV. I had been running the TV in Movie Mode in Warm 2 (with adjustments to make a darker picture to prevent the banding) but can now use the brighter modes since I live in the southwest where bright sunlight reigns supreme. Yes it was not a free fix but having done Computer Onsite calls, it was not unreasonable to pay the tech for a return to awesomeness that this TV has when displaying correctly. One thing to note if there is any burn in they may ask to replace the panel at $1K which is stated before the tech comes out. Thanks for AVS and everyone here, I was about to toss the TV, and instead am very happy with it now.
post #109 of 142
Years ago somebody mentioned they were having a pink color problem on a Samsung plasma and somebody suggested lowering white balance in service menu so none are over 128.Does anyone know if this reduced or fixed the pink coloring or any color banding? I don't want to go into service menu or take the back off but I'd rather go too service menu.
post #110 of 142
Quote:
Originally Posted by nharbi View Post

I have a PN58C8000 that started Pink Banding about 1 year ago barely noticeable, then in the last couple of months it bloomed to rich purple/pink band that in a snow scene looked like a Barbie Dream house exploded on the inside of my screen (upper right area the most in a square). Contacted Samsung support, could not enter anything on the support site as the model drop down didn't work (I.E, Firefox, Chrome all tried). They first tried the does it display on the test image? Which is a blue background and blue drowns it out. Then a factory reset. Which knocked my wi fi dongle back offline and dropped all my settings completely out but no change (if you've had a calibration make sure to document all of the settings prior to a factory reset, it will lose them). At this point I pulled out the ASC20130528001 bulletin that was posted in this thread and said to the person on the call this looks exactly like my issue. They said O.K. we will arrange a tech. They had to hand enter the request and said someone will contact you within 24 to 48 hours and that you will have to pay for the tech call since it's out of warranty (purchased in Aug 2010 when it first came out) and any additional parts that might be required. Within that timeframe the SK electronics firm that does the servicing in my area contacted my wife and the tech was scheduled. He arrived had the printout of the service bulletin in hand and here is what he did....exactly what the bulletin described. Firmware update to Logic Board using Service Remote, changed the banding to very slight almost light / white. He then with my assistance turned the TV around and pulled the back off and adjusted to the recommended voltage, brought up the white test screen and fixed. He screwed on the back and we put it back in place and we are now up and running and very happy with this TV. I had been running the TV in Movie Mode in Warm 2 (with adjustments to make a darker picture to prevent the banding) but can now use the brighter modes since I live in the southwest where bright sunlight reigns supreme. Yes it was not a free fix but having done Computer Onsite calls, it was not unreasonable to pay the tech for a return to awesomeness that this TV has when displaying correctly. One thing to note if there is any burn in they may ask to replace the panel at $1K which is stated before the tech comes out. Thanks for AVS and everyone here, I was about to toss the TV, and instead am very happy with it now.

I know that it has been mentioned many times to adjust your voltage setting i forget which one it is that gets rid of a the magenta /pink banding. I used a scene from Dispicable Me the chase scene through the clouds this is where the high contrast of the clouds would reveal the pink banding the most for me. You have to adjust the voltage in the back of your tv. Do a search or read this entire forum and somewhere in here it tells you which trim pot you have to make adjustments too. Your problem might be the same as the one I had. When I adjusted the voltage it fixed it completely. I used the test scene to varify and it was gone. Good luck.
post #111 of 142
this images are from a 63c7000

Edited by apelbaum - 2/8/14 at 12:31pm
post #112 of 142

Hi All, 

 

I made the adjustment on my PN58C500 tonight.

 

Current panel is 3rd on 3 year old set and in use for about 2 years now.

 

Previous two panels replaced because of the banding.

 

Banding significantly diminished but still a slight trace in upper right corner at times.

 

Does no one know anybody in the business that can get us the Logic files.

 

Robby

post #113 of 142
Thank you veets!!! Those pictures and description were extremely helpful!

I have a PN58C550 that I got back in March 2011. It's had the pink banding, both on the top and bottom of screen, and has been getting worse over time. I just followed your instructions, and now it's completely gone! I'm watching a hockey game right now and I can't see any of the pink banding or flickering or fluttering that was driving me crazy!

I didn't have decent clips for my multimeter, and didn't want to chance shorting anything out, so I just eyed it. I overturned at first, and then backed off...my final change was a little more than a quarter turn from the original setting. There's less than a quarter turn remaining from my current setting (pretty much due North) and the maximum setting (a little shy of due East). Just to mention, there was a little arrow on the plastic screw that made it easier to see my changes.

As a side note...my C550 was purchased with the refund money I got from Samsung for my PN58B560 which I had got in June 2009. That TV developed the infamous Samsung "buzz" that got worse and worse over time. I had technicians attempt to swap the board on the B560 from a replacement panel Samsung had sent me...but it was a botched attempt and the TV stopped working altogether after that, so Samsung refunded me for the TV. They were actually pretty good all around, considering I was a bit outside the warranty and they still covered the original technician visit. Still, I'm very glad I didn't have to deal with them on my current issue, as I'm far beyond the 1-Year warranty on this one, and other comments hear have not been favorable.

Anyways, thank you again! I will report back after some time, just to let everyone know if this change continues to work and doesn't cause any other issues.
post #114 of 142
white balance or voltage(vs) with pink discoloring on white screens.How does a person know whether its the white balance or voltage(vs) that needs adjusting?
post #115 of 142
Quote:
Originally Posted by Vic12345 View Post

white balance or voltage(vs) with pink discoloring on white screens.How does a person know whether its the white balance or voltage(vs) that needs adjusting?

This thread addresses the model numbers in the TSB and some have applied this "fix" to others. It's a known "fix" that has specific numbers that need obtained and only requires a DMM to check. The rear panel isn't a bother unless it's wall mounted and then it needs to come off the wall and onto the stand. I don't know that I've seen comments regarding your alternative. Perhaps it deserves a separate thread with mention of the model number and a snapshot of the problem The more information that you can supply that you believe you've heard would be a plus I'd think.
post #116 of 142
I have have a Sam pne450.I really don't want too take the back off or use multimeter worrying about shorting something out or getting a shock.And how accurate is a $20 multimeter..I still have a long term warranty.I've reduced a lot of pink/red discoloring on all white screens with WhBal,but I've had too adjust the gains quite a bit.I think the pink discoloring has been there the whole time on warm2.I noticed even when reducing cell light that it still red.I guess its if it has colorbands and it's really noticeable then it's a voltage adjustment.
post #117 of 142
Quote:
Originally Posted by Vic12345 View Post

I have have a Sam pne450.I really don't want too take the back off or use multimeter worrying about shorting something out or getting a shock.And how accurate is a $20 multimeter..I still have a long term warranty.I've reduced a lot of pink/red discoloring on all white screens with WhBal,but I've had too adjust the gains quite a bit.I think the pink discoloring has been there the whole time on warm2.I noticed even when reducing cell light that it still red.I guess its if it has colorbands and it's really noticeable then it's a voltage adjustment.

If you've got the warranty - use it!
post #118 of 142
I went into service menu so I'm worried If I'm still covered....The pink red REALLY degrades the picture quality if its happening.
Edited by Vic12345 - 3/22/14 at 5:33pm
post #119 of 142
I am also an owner of a PN58C8000. I have had pink banding for about a year now, but not bad enough to get super made about it. I rarely noticed it while viewing actual contact and interestingly enough, notice a lot more with a browser window on my HTPC then any other device. Especially in Chrome. Not as bad in IE. Weird.

Anyway, I bought mine as demo so I knew it had a lot of hours on it to begin with. I bought a Squaretrade warranty for 3 years in March 2011 (when I purchased the TV). I just called in the Square trade warranty at the beginning of the month and the tech agreed the panel needed to be replaced and the buzz was really loud, but not bad while audio was on. Square trade sent a technician out (contracted, of course). They took some iPad picks of the banding and noted the buzzing. Square Trade approved a full replacement. I am sure going through the third-party was better than Samsung's review, but you never know if that will work out. The money that money was well worth it because I am got more than $2000 back.

I already purchased a replacement. I would have gotten the Panansonic but since they are out of the game, I went with the PN60F8500. I now plan on employing the VS fix before selling my C8000 which I expect will cover the small difference out of pocket I was on the new TV. Essentially, this worked out for to get two top of the line TV's for the price of one, so I couldn't ask for more. Not sure if I will buy another Square Trade warranty, but I might be crazy not to at this point.

I will report back on how the banding fix works for me. Just curious how those without a stand are propping the TV up to do the work? I don't have a stand for it at all so not sure how I was going to do that.
post #120 of 142
Quote:
Originally Posted by sub780lime View Post

I will report back on how the banding fix works for me. Just curious how those without a stand are propping the TV up to do the work? I don't have a stand for it at all so not sure how I was going to do that.

Wait until you receive the 60" F8500 and you'll be able to stand your C8000 in the Styrofoam blocks of the lower box to accomplish your fix or buy a base/stand for the C8000 and sell it complete ready to go. I believe it might bring substantially more with the base. A base/stand should be very inexpensive I'd think either locally OR the eBay source.
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