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Toshiba DLP Model 52HM84 S/N 20717899 Symptoms: It ultimately blinks a lamp problem code after trying to start 8 times. A New lamp does not correct. I hear a 2 stage whine when it tries to start. I suspect it has a color wheel problem instead ??? Is this replaceable by itself? or is the complete light engine the more realistic approach to repair.??

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  • ZNREL Sep 07, 2010

    Thank you. It is always good for the Ego to get a second opinion that reinforces my diagnosis.

    ZNREL

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Hi,
Color wheel for Toshiba 52HM84 comes along with light engine and price is $330, available in Discount-Merchant.com
Click above link to view light engine images and price info.
Thanks.

Posted on Sep 07, 2010

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Toshiba DLP green light flashes 5 times


Inspected lamp?

Does lamp fire even for a second or two?

Any high pitched whine or fan like sounds?

What I usually do if working on a set like this is rule some things out and then Google the model to get to the Toshiba site---see if your model and blink code are listed there.

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Repleaced lamp on Toshiba DLP 52HM84... still wont turn on. It goes through the auto start up 8 times and still no screen. The red and green lights blink at the same time. What does this mean?


The fault is indicative of the lamp circuit, check the lamp fittings, check the power circuit and the ballast.
If the voltage insufficiency is present from the power supply it can lead to low current and thus the lamp will not power up. Also if the replaced lamp is faulty, not of original quality or if there are connector issues, this must be rechecked.
Check all the connectors on the power supply side and the motherboard. remove and reconnect.

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1 Answer

Hi: My Toshiba starting showing the symptoms (as it has in the past) that it needed a new bulb. The red light comes on, is steady, but then the green light comes on and flickers. I have now put in 2 new...


I think that you have a problem with your ballast board this is the power source to the lamp if for any reason it starts to wear out or weak it will not be able to turn on your lamp check this link out it is about Toshiba lawsuit

http://www.avrev.com/home-theater-rear-projection-hdtvs/dlp-rear-projection-hdtvs/toshiba-ordered-to-pay-out-in-dlp-lamp-lawsuit.html

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Blinking is a trouble code. Try unpluging for a longer time then hold power button in when pluging back in to try and reset.

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I have a Panisonic pt-52lcx66 that won't come on.


OK AT THIS POINT IT COULD BE A BALLAST ISSUE IT SOUNDS LIKE IT'S NOT SENDING THE CORRECT AMOUNT OF VOLTAGE TO THE LAMP TO TURN IT ON, AT THE START IT NEEDS A KICK OF 15,000VOLTS TO TURN ON AND IF THE BALLAST IS WORKING CORRECTLY THIS WILL HAPPEN
HOPE THIS HELPS

http://www.fixyourdlp.com/2007/11/24/reset-your-panasonic-lamp-counter-after-installing-a-new-lamp/?click=48428


http://www.discount-merchant.com/how-dlp-works-like-magic-a/141.html?click=48428

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What are the blinking light codes on a toshiba dlp meAn?


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1 Answer

Problem with Toshiba DLP Projection TV Model #52HM84


It is possible the lamps may be defective or that they may be the wrong replacement for this model, as it may have a different wattage setup with the ballast. If you want to try to order the TB25 lamp from a different vendor, you can order the original Toshiba replacement lamp for this model (52HM84) from a major Toshiba parts distributor at the link below:

Toshiba 52HM84 Replacement Part TB25 Lamp / Bulb

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1 Answer

Toshiba 52HM84 DLP TV with new bulb but the lights keep blinking


They exact way the lights blink are telling you what the failure is. If the tv is firing the lamp and the lamp is bad, you will hear a buzz sound for about 1 second. The tv tries 8 times before it gives up and spits out the lamp error. Check the user manual for led diagnostics. If you put in a new lamp but still have issues, you've likely got a bad ballast (most common on this model) or colorwheel (less common). Both are part of the optical block (light engine) and I don't believe they're available as individual components from toshiba.

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