技术老外的网站 专业修复松下PDP黑位

lt1982

http://panasonic.mironto.sk/

Back in August 2009, member Orta posted the topic on AVS forums about his Panasonic 12th generation 50G10 plasma doubling the MLL from 0.03 Cd/m2 to 0.06 Cd/m2 after some 200 operation hours of the panel. There have been some reports in the past about black level on Panasonic plasmas getting worse over time, but with 12G plasmas the change was drastic and obvious.

At first this was believed to be a rare defect of some affected sets, but as more and more people started reporting their measurements, it was clear that the problem is much more widespread. Since Panasonic plasmas were praised for their deep blacks, the whole issue got a lot of attention from A/V enthusiasts all over the world. After David Katzmaier, the senior editor from cnet, started following the story and doing long-time tests of several Panasonic plasmas, Panasonic admitted that all the sets in 2009 were designed to increase the MLL after an unspecified amount of time to cope with the panel aging, resulting in a 3x MLL increase (and settling somewhere around 0.12 Cd/m2). Panasonic claimed that there will be no fix, as the TV operates as designed. However, they changed the algorithm in 2010 models, so that the increase is less coarse (read users will find out about the rise later if ever). In 2011 and newer sets, Panasonic made significant changes to the internal panel materials which should improve the panel’s characteristics so that there are no voltage adjustments necessary andMLL should stay the same throughout the lifespan of the PDP.

There have been many attempts to fix the issue over the years but none of them have been successful (except atemporary one when the A-board had been replaced by a Panasonic technician). Until now. Some 10,000 posts and four years later, in the mentioned AVS topic user clktmr from Germany reported he was able to restore the original black level on his 50S10 model by soldering in some cables and erasing some contents of A-boardEEPROM. Several months later, user MARKONE reported that he was able to restore the backs without any modding to the TV which made the procedure more widely accessible.

Since the restoration seemed “pretty easy”, I decided to perform it on my TX-P42G10E set myself. After some $20 spent, several weeks waiting, and lots of questions answered by many helpful people in the AVS thread, I was able to successfully reset the black level on my TV as well. Since the fix is not that hard to perform (now that I’ve been through it) I decided to help out all the other people interested in restoring the black level on their Panasonic plasmas by writing a detailed how-to guide.

The guide is for Panasonic TX-PxxG10E, but should be applicable to all X1/S10/G10/V10/Z1 models. It might work on S10 model as well, but I do not have access to the model mentioned therefore cannot confirm. Update:As I am receiving reports from people performing the reset on 11G/12G/13G models, I will be updating the list for models where the reset was successful.

• Steve from US restored MLL on his North American TC-P54V10 by following the guide.
• I’ve got an update from Patrick from Germany that he was able to restore black level on his TX-P42S10Efollowing the guide.
• Also, Martin from Germany successfully restored MLL on his TX-P46Z1E via the 11-pin service connector.
• I’ve received reporton another successful MLL reset on a TH-42PV80 model, so this should confirm that this guide is applicable to 11G models as well.
• Chriss was able to restore the MLL on his North American TC-P50X1 model. This is a HD Ready 720p set featuring standard PDP panel but apparently suffers the same rising blacks as NeoPDP S10/G10/V10/Z1 range.
• User hermeslyre restored black level on his North American TC-P54VT25 (13G model). This confirms that the reset procedure is identical to 11G/12G models.
  

If you have different 11G/12G/13G models and decide to proceed with the guide, please let me know if you succeed or what’s different than in this guide and I’ll try to alter it to cover all the affected plasmas. Userbastek888 reported on AVS forums that he successfully restored black level on his TX-P50VT20E by un-soldering EEPROM chip from A-board so it should be possible to use this guide on 13G plasmas as well.

Please read the guide all the way through at least once so you get the big picture before you try to fix something that’s not broken. I tried to write the guide as much step-by-step as possible but there might be sections you should be aware of before you proceed with tinkering with the TV. In the end, it’s your TV thus you’re the one responsible for its long and happy life.

It has been brought to my attention, that some/most Panasonic plasmas have built-in HEX editor (as reported on hackaday.com) and raised a question, whether the panel operation hours could be reset within the editor, instead of hooking an I2C master to service connector. Unfortunately, the editor has access only to Peaks and Standby EEPROM, not Panel EEPROM. Therefore it’s not possible to reset the MLL this (much convenient if possible) way.

2009-2010的机型全部中招

艾利和菲尔特

就看懂标题和最后一句

jesson1971

大致翻译一下：

X1/S10/G10/V10/Z1，可能还有S10机型（都是2011年以前机型，以后的改善了），用11G/12G/13G的（貌似面板型号，还是驱动板？），使用过一段时间后会出现黑位上浮的情况，大致可恶化至2到3倍（具体的尼特数字我上次有个讨论），原因是内部面板材料的变化（大意如此），在AVS论坛反映下，CNET的编辑介入并确认有此缺陷。经过四年的束手无策，AVS的网友终于找到了抹掉A-board的EEPROM，恢复原始黑位的办法。经过我的尝试，花费了20美金（可能是eeprom读写器），对我的 TX-P42G10E成功的恢复了原始黑位。

按照本手册，可以很轻松的做到。

挺有意思，我的等离子测过确实黑位数据和他说的一样（08年的800C），一手机器，其他状态都好的惊人，我以为原始黑位就这样的，原来是恶化了，不过已经卖掉了，无从尝试。

chncwk

早在2009年8月，成员Orta在AVS论坛上发布了有关其松下第12代50G10等离子体的信息，该面板在面板运行约200小时后，其MLL从0.03 Cd / m2增至0.06 Cd / m2。过去曾有报道称，随着时间的推移，松下等离子的黑电平会逐渐变差，但是随着12G等离子的出现，这种变化是非常明显的。

起初，这被认为是某些受影响组的罕见缺陷，但是随着越来越多的人开始报告其测量结果，很明显该问题更加普遍。由于松下等离子体被称赞为他们的深黑色，整个问题得到了很多的关注，A / V爱好者遍布世界各地。在cnet的高级编辑David Katzmaier开始关注这个故事并对松下的几种等离子进行了长期测试之后，松下承认，在没有指定的时间处理面板后，Panasonic 在2009年的所有设备都是为了增加MLL而设计的。老化，导致MLL增长3倍（并稳定在0.12 Cd / m2左右））。松下声称，由于电视按照设计运行，因此不会修复。但是，他们在2010年的模型中更改了算法，因此增加的幅度较小（如果有的话，以后的读者会发现增加的幅度）。在2011年及以后的产品中，松下对面板内部材料进行了重大更改，这将改善面板的特性，从而无需进行电压调整，并且MDL在PDP的整个使用寿命中都应保持不变。

多年来，已经进行了很多尝试来解决此问题，但是没有一个成功的方法（临时方案是，松下技术人员更换了A板）。到现在为止。大约10,000个帖子和四年后，在提到的AVS主题中，来自德国的clktmr用户报告说，他能够通过焊接一些电缆并擦除A-boardEEPROM的某些内容来恢复其50S10型号的原始黑电平。几个月后，用户MARKONE报告说，他能够在不对电视进行任何改装的情况下恢复背部，这使得该操作变得更加容易。

由于恢复看起来“非常容易”，因此我决定在自己的TX-P42G10E机上进行恢复。在花了20美元，等待了几个星期，并且在AVS线程中有很多乐于助人的人回答了许多问题之后，我也能够成功重置电视上的黑电平。由于该修复程序执行起来并不难（现在已经完成），因此我决定通过编写详细的操作指南来帮助所有其他有兴趣在其Panasonic等离子体上恢复黑电平的人。

该指南适用于Panasonic TX-PxxG10E，但应适用于所有X1 / S10 / G10 / V10 / Z1型号。它可能也适用于S10模型，但是我无法访问所提到的模型，因此无法确认。更新：当我收到来自对11G / 12G / 13G型号执行重置操作的人员的报告时，我将更新重置成功的模型的列表。

来自美国的史蒂夫（Steve）按照指南恢复了其北美TC-P54V10的MLL 。
我有来自德国的Patrick的更新，他能够按照指南恢复其TX-P42S10E的黑色电平。
另外，来自德国的马丁通过11针服务连接器成功地在其TX-P46Z1E上恢复了MLL 。
我已经收到有关TH-42PV80型号成功完成MLL重置的报告，因此这应该确认该指南也适用于11G型号。
克里斯能够在其北美TC-P50X1型号上恢复MLL 。这是一款具备标准PDP面板的HD Ready 720p 电视机，但显然与NeoPDP S10 / G10 / V10 / Z1系列产品一样遭受黑潮。
用户hermeslyre在其北美TC-P54VT25（13G型号）上恢复了黑电平。这确认了重置步骤与11G / 12G型号相同。
如果您使用不同的11G / 12G / 13G型号并决定继续使用该指南，请告知我您是否成功或与本指南有何不同，我将尝试对其进行更改以涵盖所有受影响的血浆。用户bastek888在AVS论坛上报告说，他通过从A-board上拆焊EEPROM芯片成功地恢复了TX-P50VT20E的黑电平，因此该指南也应适用于13G等离子。

请至少通读一遍该指南，以便在尝试修复未损坏的东西之前先了解一下总体情况。我试图尽可能多地逐步编写指南，但是在继续修改电视之前，可能需要了解一些章节。最后，这是您的电视，因此，您要对电视的漫长而幸福的生活负责。

引起我注意的是，一些/大多数松下等离子已经内置了HEX编辑器（如hackaday.com上所报道），并提出了一个问题，即是否可以在编辑器中重置面板操作时间，而不是钩住I2C主站到服务的连接器。不幸的是，编辑器只能访问峰值和待机EEPROM，而不能访问面板EEPROM。因此，无法通过这种方式（如果可能的话，非常方便）来重置MLL。

chncwk

松下当年这种设计的初衷怕是要加速世代升级吧。

zycxjl

pdp还能修复黑位？。老外又作啥妖呢，。。。是像oled电视一样pwm调光吗？

fany1970

你没发现不同机型最后通通稳定在0.12cd/m2了吗？
个人认为0.03就是拿来测试用的，0.12可能才是正常使用指标。过度控制黑位就不能预放电，对面板的动态响应肯定有坏影响。
0.03就是用来扯蛋用的，除非全黑环境，实际使用环境下，等离子那大玻璃板的上反光一通晃，0.12你也享受不到。

fany1970

2011年以后为了黑位，松下对面板材料做了重大修改，结果呢？灰暗糊闪，等离子特性消失的干干净净。

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