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grayfox

Hello,
no the ballast feeds the lamp about 15kV so i do not recommend testing it. this part is also notorious for malfunctioning on Mits. models.
When was the last time you replaced the lamp?

grayfox

Given the information and the image you shared this is most probably a DMD board issue. Any one esle?

grayfox

Hello,

does the plasma tv shut off at any point? given the lines I have to say there's probably a notorious problem of an X or Y sustain that has to be replaced... more certainly the Y.

Hope this helps!

grayfox

Very good informational video! Thank you for posting!!!

grayfox

are you getting any sounds? or did you get any image distortion before the TV stopped coming on?

grayfox

thank you for sharing that experience! I'll take the opportunity to mention that for my customers lamp replacements I have used only Philips original brand lamps and I have had the best feedback in comparison to generics.

grayfox

I hope it was solved

and that's the reason he has not yet posted again

grayfox

Hello, sorry I had not run into this post to help before, after reading the thread, there is a ton of questions but i'll start with some basics. Has it been over a year since you last replaced the lamp? and if your TV turns on, does the malfunction happen with all inputs, more specifically analog an...

grayfox

It is relatively easy to replace the lamp, you can find instructional videos by putting your lamp model number in youtube!

The buzzing sounds like you might have a Ballast issue, but I would suggest trying the lamp first...

Hope this helps!

grayfox

So the HDMI seems fine? no distortion whatsoever? do you have a snapshot of the screen?

grayfox

wow, i guess you're welcome! although it was your discovery :lol: An analog signal (such as the coaxial antenna input) is one that has to go through the Digital Video Board which converts it into a digital signal ready for DMD projection. You can also try another analog such as the component (yellow...

grayfox

Congratulations on your career! :mrgreen: And thank you for helping mold the minds of future leaders, hopefully most of your students will be able to credit you for flawless spelling in whatever takes the place of emails in the future :D As for the TV :( I am sorry I could not help further with a qu...

grayfox

Yes im afraid those symptoms, (if the distortion is happening with both analog and digital inputs) can pertain to the DMD board

but fear not, in saving a big screen like this the cost of a light engine is around 200$ which for an HD TV I think is relatively cheap price!

grayfox

donnbarclay wrote:I'm using HDMI for both--from the units to a Denon receiver, then a single cable to the TV.

sorry bad wording! i meant:
The single cable going to the TV is an HDMI?

grayfox

Hmm after all that attempt at calibration with no success I think you might have to look for a new DMD board, does this distortion you describe affect the on screen menu???

grayfox

what kind of cable goes to the TV coax?

grayfox

welcome, and yes that is exactly what i meant, i know in this context it is confusing!!! sorry!

grayfox

hhmmm now that you mention the other distortions being more noticeable i thought they might be noise before shutdown but if it is running this throughout... Then a DMD board is the most probably, I would still just to trouble shoot, try every input and see if it does the same... The plus side of try...

grayfox

what kind of inputs are on your Satellite and DVD?

grayfox

I think maybe an input board is about to go out... keep us posted if it gets worse!

grayfox

Yes! this lamp gave you a good lifespan but I am afraid it is time to replace it!

to get that bright "like new" image again make sure to get a Philips brand lamp, it is what Samsung uses from factory

I buy my clients lamps @ www.discount-merchant.com

hope this helps!

grayfox

Hello and welcome aboard,

I am sure someone will be able to help, if not ill take a crack at it!

grayfox

hello,

well it sounds like if you replaced the colorwheel properly and have a new lamp in there should be no problem, maybe the problem lies in an analog or digital video board, my first question would be if this TV has the same symptom on all inputs?

hope i can help!

grayfox

Hello,

This sounds like just a typical lamp exchange problem, have you recently replaced the lamp?

grayfox

hello, 1- yes it is possible and cheap but you have to be very good at soldering!!! Ive recycled old ones from broken sets to replace them on working ones! 2- I would try www.discount-merchant.com and search with the part number off the board... 3- Of course this technology was years ahead of its ti...

grayfox

hello, the winding sounds is most likely the colorwheel but its not necessarily defective unless the jumpiness you describe happens most on the colors than the actual image. There can be some DMD issues, but I would definitely take the quicker shorter path and change the colorwheel you can find them...

grayfox

hello,
sounds like there is some interference... it can be your input board, when you replaced the inputs, did you make sure not to plug anything differently?

grayfox

Hello,

Do you get any distortion on the screen? if not then when was the last time you changed the lamp?

grayfox

Hello,
I think your ballast is weak and needs replacing, it takes 15kV to ignite this lamp and a weak ballast might not push through on bright pictures.

grayfox

Have you tried changing the lamp first? this is the most common issue!

grayfox

good to hear, well theres some distortions on the screen and fail commands like form the remote control if a dmd is bad...

the reason i asked you to try all inputs is to isolate the problem this might just be a video board or maybe just an input board...

grayfox

Hello, Sounds like you might be experiencing a DMD board issue... most of the times this requires a replacement of the complete light engine :( you should also try every input and see if the menu screens are affected by the distortion??? this helps diagnose... anybody out there have any advise? beca...

grayfox

ok, and it does this with all inputs? say coaxial and component, HDMI, DVI, RGB, etc..?

grayfox

hmmm this can also be a DMD board issue but lets hope not! The colorwheel does not necesarily need to squeak or make any noises in order to malfunction it is just the most common way of noticing it. It can produce some flikering on the image but no drastic distortion... can you describe the distorti...

grayfox

I know the story very well, thank you for taking the time to help other in similar situation, BTW Toshiba had a class action lawsuit because they did not know how to use this DLP technology, and they LOST!!! anyway do you have a part number? maybe i can try searching my sources for you, Thank you an...

grayfox

Hello,
You can replace the lamp if its been around a year since you last replaced it just to be preemptive, but this distortion is most likely caused by a bad DMD board..

Hope this helps!

grayfox

Hello,
I think its time to replace your colorwheel!!!

grayfox

Hello,

If the recall was made for units sold in the US you will probably get nowhere ( i have seen this before with Toshiba) I think you can save time and buy a refurbished one online, shouldn't cost more than 200-300 USD...

Hope this helps!

grayfox

Hello!
Heres a sure fire way to find out, turn on your tv and set all the colors to zero... if the image stays perfect when the whinning comes up im 90% sure its a colorwheel issue!

Hope this helps

grayfox

I assume you can but the bigger the HDD the slower it will get and also it might read the standard flash drive filing which is FAT32 so you would have to format the HDD into FAT32 and then put files to play on it...

Hope this helps

grayfox

Hello,
Its been in my experience that when you replace the Y sustain you want to also replace the X sustain... plasmas can be tricky and you can replace the Y sustain 1000 times but if the X is bad is gonna keep frying your Y... just a thought.

grayfox

Hello,

If you can lower your resolution (i read the HD gamer guy part) please give it a try... say from 1080 to 720... This may be an input compatibility or wear down.
How long ago was your lamp replaced? this is usually a lamp or ballast issue...

grayfox

try searching it on www.discount-merchant.com thats were I get most of my parts, since they ship worldwide..

Sorry I cant be of much help!

grayfox

sorry to hear that! :cry: well in my experience I have been troubled to remove the back shell in order to be able to access the front panel from the inside ;) once you find the sensor if is seems unfixable I found these while searching for a repair guide for your TV.. http://www.discount-merchant.co...

grayfox

on what board is the integrated circuit that is burned on?

grayfox

It is usually in the front panel and is part of the button set of the tv... It is highly unlikely for this to go out a more likelihood would be the remote itself...

Hope this helps.

grayfox

Hello, this is a huge trouble shoot when you swap out a complete light engine! but we can start simple, how long has it been since you last replaced the lamp?

grayfox

hello, to be honest, after 3 yrs the lamp should be near the end of its life span, I would recommend trying to replace that first since it is what goes out first and it will need replacement anytime soon even if it is not the cause. If this is not the cause I am 90% sure this could be a ballast prob...

grayfox

Do you have any pictures of the distortion and the part?

its kind of hard to imagine!

bye!

grayfox

hhhmmm, I would insist on you trying a new ballast. if you are sure the lamp is good... if not then try the lamp first, either way it will need replacement soon!

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