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grayfox

Hello again,
those are examples of optical blocks, since you cannot get the LCD chips separate, you would need to swap out the entire piece...

Do not worry it is a simple task

and those already come calibrated just plug and play

hope this helps!

grayfox

Welcome!

Do you have any experience with electronics?!

looking forward to posting with you!

grayfox

1- I think it is a smart investment since all DLPs need a new ballast at least once during their lifetime (google it) ;) 2- No the Ballast runs the 15KV ignition and it is powered directly from the Power Supply only other 2 cables go to the motherboard and to the actual Lamp! :shock: 3- Yes!!! 1/3 o...

grayfox

its more likely your X and Y sustain boards, can you describe the distortion on the image??

grayfox

Is this an LCD projection television??? the only thing i could think of would be the trip sensor from when you replaced the ballast if so....

grayfox

UHOH! what kind of solvent did you use to clean it up? you might have damaged the plastic filter screen...

grayfox

This sounds like just a bad lamp, have you replaced one recently???

grayfox

I would follow the new lamp by installing a new ballast, this solves the problem 90% of the time given your symptoms. (they usually run anywhere from 60 to 80$)
try
http://www.discount-merchant.com/Search ... %20ballast
love your avatar BTW

grayfox

do you have a picture of the cracked part?, I think this is just a lamp issue. Any symptoms like buzzing or grinding sounds

grayfox

I am 90% sure this is an issue with the ballast, but would recommend buying it online and swapping it out following the template guide on this home website, you can find the ballast by part number online for like 60-80$ and replace it yourself with just a bunch of screws and plugs, or pay around 400...

grayfox

yes, for example if you have your old dim lamp and put it in, it would work fine if the ballast was weak, less demanding....

new lamp requires more power 15 kV....

grayfox

Hmmm could find one online but most large mitsubishis need to have the front speaker panel removed (where the buttons are) under the screen in front....

hope this helps.

grayfox

Hello, it all sounds normal, I think the problem lies in your ballast. as long as there is no discoloration or distortion then I would change the ballast first (it is relatively inexpensive, I purchased a Samsung at www.discount-merchant.com for like 60 bucks) and used this websites guides to change...

grayfox

its an easy fix ;) , if you do not have room to remove the old bare colorwheel and replace it with the new one, you will need to remove the complete plastic light tunnel from the colorwheel base :( You are just a couple of screw away! be very careful when handling the bare colorwheel (kinda like you...

grayfox

Hello, too bad you missed it going out to spot for any color distortion.... clicking or buzzing sounds are more commonly related to the ballast not powering up a new lamp. I think it might be weak,to try it out you can remove the lamp for some hours, reinstall it and give it a go, if it turns on the...

grayfox

you might have to purchase an antenna that picks up digital signal i.e. a digitenna also remove any coaxial cable from anything that is not an antenna...

grayfox

If all it does is not turn on at all, the best and safest way to go is purchasing a new lamp and go from there...

grayfox

No I am pretty sure IT can be the ballast or colorwheel even, do you get any distortion and can you describe the noise in more detail???

grayfox

It depends, all it does is not turning on? or is there some distortion on the screen, any weird noises???

grayfox

Well a lamp hour timer gives the Ballast (that which powers up the lamp) the suggested voltage for a new, used or spent lamp, which can in turn affect ignition.

grayfox

hmmm Toshibas can be tricky cause they are virtually the only brand using DC instead of AC lamps... Are you getting any kind of sound like buzzing or clicking when ignition fails? Have you reset you lamp timer, if there is none you can do an improvised one by leaving the lamp outside of the TV over ...

grayfox

noise*** sorry, I am pretty sure a DV board and colorwheel will fix this and keep your tv working like new for another couple yrs. I just fixed an RCA with the same problem I replaced both (because lets face it, I rather tackle most probable scenarios and I charge by the hour!) And it was like new.

grayfox

hey crackie stop it!

grayfox

Sure thing no worries!

hopefully you can get your tv up and running for a couple more yrs

let me know if you need any installation tips

grayfox

If this sounds comes back you know where to go!

grayfox

LCD projection is tricky, when you could fire it up do any of the menu screen come on? if not I think you might need to replace you DMD board...

grayfox

sorry that mug person was spam...

grayfox

This could be an issue with your DMD board, are you getting any other symptoms like remote commands not responding, or the picture freezing before it shuts down?

grayfox

for a new lamp like the post above I would recommend changing the ballast first like BYO says, for an 8 month old lamp, depending on use and how well ventilated the TV set is, I would try a new lamp first, aftermarket lamps have about a one year lifespan is used everyday.

Hope this helps.

grayfox

yes definitely, the bad news is that they regularly sell these assembled complete with the light engine / optical block which is pricey! (like 700$) but I've found them under 300$ at www.discount-merchant.com and there's nothing to cut or solder, just some screws and plugs it swaps in and out!

grayfox

Normally during the same day... has it been answered?

grayfox

wow i dont know where to begin... as a fellow tech, let me begin by saying this is admirable work!

grayfox

if the picture freezes and its not the input it is definitely a DMD board issue..

grayfox

LOL

grayfox

Im sorry I havent been able to find any lying around either, If someone out there could give us those dimensions I could look for an identical one, (i am sure infocus did not produce the internals for this TV, they use either samsung or philips, etc) there has to be tons of parts out there...

grayfox

good luck, I am starting to think it is an issue with the Sat box output... but let me know and feel free to PM me!

grayfox

Hello,
I think you could have caused some damage to the ballast if it was weak enough but since you have never changed the lamp im leaning more toward you turning on the TV reset the lamp hour timer and regardless its about time you replace the lamp...

Did I understand correctly? Hope this helps!

grayfox

hello Gregutz, I received your message, if the colors are off after installing the colorwheel, I believe it might be a simple issue with the DMD which can be fixed if you remove a jumper it connects to, please see the example on the listing below... http://www.discount-merchant.com/product-p/samsung...

grayfox

Glad I could help!

Enjoy!!!

keep us posted (hopefully you wont need too!)

grayfox

grayfox

I usually buy from the sponsor!

http://www.discount-merchant.com/produc ... 00033a.htm

They have great Customer Support

ask for Sergio

you can tell him Angel referred you! that is what I always say!

grayfox

welcome

, please keep me posted, if you have a part number off that board I can get you a cheap place to find it

grayfox

not without replacing it

grayfox

grayfox

hhmmm i would still test the resistance and bring it down to 480... standard see if the flicker stops... anyways good luck with the cleaning and you are very welcome!

grayfox

to be honest a little bit of both! one its cheap and two ive seen this before! one test i know we can do is lower the resolution on your screen i.e. from 1080 to 720. and see if it still flickers! let me know!
Also a good dusting fixes problems like almost 10% of the time

go figure!!!

grayfox

This cannot be a lamp problem, I would try the input board first.. if you take off the back shell there should be a part number on the board with all the inputs if you get me that number i can find the cheapest price online ;) .... if digital signal is causing the symptom then the DV board must be f...

grayfox

hmmm does the set have a HDMI input????

grayfox

well the bad news is the DMD (motherboard) is not normally sold separately from the entire light engine, I find the cheapest prices for this part at discount-merchant.com (in or around 200-300$) but at least the swap is easy, it is just a bunch of screws and plugs nothing to cut or solder. Pretty se...

grayfox

Glad I could help, you also might want to check out the ballast replacement guide on this forums homepage. go to Guides> ballast ;) And to answer your question, No, the only function the ballast has is generating a 15kV ignition charge for the lamp and keep it on! if you notice the guide there only ...

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