Official Pioneer Kuro Reddish Tint Problem Thread - Page 5

Originally Posted by mascior

None that he knew of...but from what I have read from other fourms the guy in germany's display was cured of the red tint issue with a software update. The firmware I haven't heard of until today.

Originally Posted by 440forpower

Can't wait to see if this helps. I emailed the link above and got no reply about firmware updates. How do I go about getting this done?

Originally Posted by mascior

I made some head way on my own last night but I would not advise any body to try this because I had to go into the service menu. Because of who I work for I was able to work my way through Pioneers phone system and got to talk to an engineer. I found out what taking the panel to "0" means. You can erase all the logs it's like 5 different ones and turns out by erasing them I got my inky blacks back no red tint. The down fall is now my sus voltage is off causing sparkles. The good news is the software that is going to be loaded to my panel today address this issue. So i'm crossing my fingers and by the end of the day I should have my display back in working order!

Originally Posted by Dwellon

I own a 111fd and a 500m. So to clarify what your saying, for my 111fd the tech will need to install a firmware upgrade that will correct the red tint issue. No need to adjust anything in the service menu.

For my 500m the tech will need to reset my panel and then adjust the voltage to correct the issue.

Does that sound right?

Originally Posted by mascior


Yeah, that sounds about right. I know for sure about the krp but as far as any other models I would assume based off what the tech said.

Originally Posted by Dwellon

Awesome....thank you for sharing all this info.

When your panel was reset, did this clear out your settings? (isf and etc.)

Originally Posted by Mac13

Mascior you mentioned on the previous page to talk to Kevin but above you said to ask for Keith. Is Keith aware of the red tint issue? I called tech support tonight to try and get connected to Keith but I got an automated recording saying that they were all in training today. Was your panel out of warranty? (mine is) You mentioned that for the software/firmware update that they would come out and do it even if we were out of warranty. Since the updates don't directly apply to the KRPs do you think they are going to want to charge us to try and fix these red tint issues by resetting the panel and adjusting the voltage? I guess that may be why we should just tell them we heard there was a software update that we want them to apply so that they won't charge us. I am just wondering if I need/should mention the red tint problem to them when I call or if I should just tell them I heard there is new software/firmware that I want a tech to come install.



I used KuroControl to unlock the ISF modes but reset the panel back to how it was originally to see if that affected the red tint issue (which it didn't obviously lol). In the process, the hours on my panel got reset and I was under the impression that the hours on your panel get reset when you use the ControlCal patch as well. Is this true and if so did the tech say anything about your hours? I am also hoping that using ControlCal won't affect the fix. Let us know how your panel is after you reinstall the patch.

So if the tech told you that this problem arose from how the panel ages then I wonder if the panels will start to exhibit a red tint as we use them more after they are reset. Do you know if the voltage is a direct cause of the problem or you made it sound like it was the logs that are the problem but then the voltage had to be adjusted as well to compensate for whatever problems there were. I wonder if the sets that are exhibiting a reddish tint had the wrong voltage to begin with or if this is something that just started to stray over time or maybe the panel does that automatically in the aging calculations. I don't really know how the whole panel aging thing works and I guess noone probably does. I am just wondering why some panels display the red tint while others don't and I am wondering if this problem is going to come back

Sorry to ask you so many questions. Just trying to sort things out and grasp what is causing this. Thanks again for your comments and help!!!!

Originally Posted by stroud

Hi mascior,

I have been 'seeing red' for about a month or so having stumbled onto this forum by mistake. Kind of wished I hadn't but once you see the red tint it's got you!

I got myself a serial cable and used hyper terminal to access the service menu. I tried adjusting the panel degradation settings and the RGB colors but nothing cured it.

It looks like this could be the fix at last...can you tell me which logs you and the service engineer cleared? I am looking at the service manual and I see several (assuming you used RS232 commands):

CBU Clearing backup data of EEPROM
CHM Clearing data of the hour meter
CHR Clearing data of the hour meter of MTB/MR side
CNG Clearing shutdown history of MTB/MR side
CMT Clearing data of the maximum temperature
CPC Clearing power-on count data
CPD Clearing power-down histrory
CPM Clearing data of the pulse meter
CSD Clearing shutdown history of Panel side

Also what were the hours on your TV before the reset and what are the new values of VOL SUS and the VOL RST P?

Any help would be great!

Originally Posted by mascior

Yes I did enter the service menu via RS232 and you can use hyper terminal if you want but here are two easier ways. 1 download Kuro Control from this forum which has a location for sending commands. 2 in hyper terminal send FAY then send FACS01 to enter the service menu and use your user remote to navigate. To send those commands in hyper terminal you need Pioneers before and after strings added to the command. I would not recommend entering the service menu unless you know what you are doing. If you do decide to enter you can reset everything but "BACK UP DATA FOR EEPROM"...DO NOT ERASE THIS AS YOUR DISPLAY WILL NOT WORK ANYMORE! My VOL SUS is 128 and my VOL RST P is at 108. If you lower the VOL RST P to low you will get sparkles and if you raise it to high you will elevate your black level or MLL. Good luck.