Question about Toshiba 62HMX84 62" Rear Projection HDTV

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Replace Light Engine

I replaced the light engine and I know I did it correctly.
Unplugged the tv :) I removed the back cover Unscrewed the left panel (power supply and cable inputs) Unscrewed full light engine Slid both units out Unplugged the blue and red cables from the side of the light engine Unplugged the 3M Cable Disconnected the two black cables on the powersupply/main unit Unplugged the 2 yellow wires on top Disconnected the yellow wire on the back of the light engine
Swapped out new light engine and replaced all cables. Turned on the TV and received blinking lights (Slid Green and blinking red - then the green goes out and the red keeps blinking.) No powere to the light engine it seems.  There is power to the power supply/main unit.  The fan is running.  The light engine has nothing.
I replaced the light engine with the old one (the one that was making a whining noise) and the same thing.  I checked all the connections and there are all in tight and in tact.
Any ideas would be greatly appreciated!!!

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Re: Replace Light Engine

I have the 62HM95 and my light engine went out between 2 and 3 years. I will never buy a Toshiba again. I have had nothing but trouble with the components and the customer support. I am in a class action lawsuit with them, but I doubt very much will come of it.

As far as fixing your TV I was in the same delimma as you. I wasn't willing to pay nearly $1000 to get this set repaired when it already cost $3000 and it started having problems within the year and major issues after 2-3 years. I was willing to risk a couple hundred bucks that I could fix it myself. If you aren't very handy with taking things apart and putting them back together, by all means don't do this. It is pretty easy to do and you can figure it out as you go, but I wouldn't suggest you doing this if you weren't willing to take the risk of really messing it up.

I didn't go to Part because they wanted $456 and then when I finally decided to do it they raised the price to $556...No way, I found and you can get a light engine that is refurbished for $250, or you can have your light engine refurbished for $200, which is what I plan to do if this one fails in the next two years. I looked at their site and it doesn't show that they have any in stock, but they may if you call. I wasn't comfortable sending mine off to be refurbished because I wasn't sure if I would remember how to put it back together, and I'm glad I didn't because the one they sent me didn't work, which sucks, but it happens. I called them back and sent it back to them and it worked fine. All in all, I had no instructions or any other help besides my memory of how I disassembled it and it only took me an hour at the most, not really too hard.

The only other issue I had with them and it really wasn't with them as much as Toshiba is, I received a light engine for a 46" model, which when I talked to Toshiba they swore up and down that it wouldn't work, when I talked to TriState about it they said that Toshiba would say that and they had used it in 1,000's of 62" models and it's worked fine. After they replaced the broken one they sent originally, the new one worked fine and is still working brilliantly and I have my original 62" light engine to get refurbished if anything should happen again. Their shipping time was good and when I returned the product to them, I received a working part pretty quickly.

For $250, this would be the only way I would go. If this hadn't worked, I probably would have just went out and got a different TV. I hope this helps.


Posted on Nov 17, 2008

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Re: Replace Light Engine

Following Jason's directions (jferezy on Nov 09, 2007) and a module purchased at Tri-State, recommended by Michael ( masm on Nov 17, 2008) I successfully replaced my light engine on a 46HM95 -- thanks, guys!!! The only think I'd add, have a level space prepared behind the TV on which to slide out the power supply and engine.

Posted on Feb 25, 2009

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Re: Replace Light Engine

Have there been any updates on a recall if any on the light engine? My TV is making the same buzzing sound. If I turn up the sound I don't hear it, but that doesn't work so good after the kids go to sleep. Help!

Posted on Nov 16, 2008

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Re: Replace Light Engine

Was wondering if anyone has a receipt in the last 6 months for a bulb replacement for a 62hm95 or the same bulb... Toshiba wont help me without a receipt so if anyone has a copy i can have please let me know

Posted on Jun 05, 2008

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Re: Replace Light Engine

Hey guys i have a 62hm95 and its making a buzzing-humming noise, i was told that is the color wheel, is that the same thing as the light engine? if so could you please send the instructions for replacing this?
thanks my email is

Posted on May 09, 2008

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Re: Replace Light Engine

By the's the correct link for the light engine that's needed on Hope this helps.

Posted on Nov 16, 2007

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Mitshubishi WD-62327 TV will not turn on and no sound. TV made a interference sound and shut off. Tried to turn it in the morning still nothing. Replaced lamp/bulb still nothing. Red light is on (not...

If you have a voltage meter there are some things you can check.
Unplug the unit and remove the back cover of the set. Then Plug the unit back in.
You will need to tape down the lamp safety switch in order to do these tests.
Here are all the failures that would give you a lamp error and what to check.
Cause 1. Unit powers on and works properly for a while then shuts off with a red lamp led(lamp error). Suspect bad lamp and replace.
Cause 2. Unit does not power up correctly and you have red lamp led(lamp error). Check the lamp enable line at connector J14 on the back of the light engine. If pin 6 does not switch to 5 volts after turn on, but your 12 and 5 volt supplies are good, then suspect a defective light engine.
Cuse 3. At power on the lamp turns on and off 3 times and then the unit shuts down with a red lamp led(lamp error). You have a defective light engine.
Cause 4. Unit does not turn on correctly and you have a red lamp led(lamp error). Check for 12 volts at connector J9 pin 4 on the light engine. If voltage is missing check for an open fuse F9A09 on the power supply board. If it is open, then you need to replace the fuse and you still have a defective light engine.
Cause 5. Lamp enable line at connector J14 pin 6 on the light engine does go to 5 volts at turn on, but does not drop back to 0 volts after 5 seconds, but your 12 and 5 volts supplies are good then you have a defective light engine.
Cuase 6. Check for 5 volts at connector J9 pins 1 and 2 on the light engine. If low or missing check Capacitors C9A37 and C9A38. Values are 3300MF/10V. Replace capacitors if defective.

This is all I have and I wish you luck.

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1 Answer



Here is Fan part# BP31-00024A. Search google, find it at various places.

Light engine assembly has to be removed. This involves unplugging various connectors between processing/control chassis on the left side and engine assembly on the right side. Mounting screws on the top and bottom of engine assembly. Then remove light engine assembly completely from the TV. Fan#2 is the lamp cooling fan and is located beside the lamp assembly.

It is not too complicated if you draw a picture of where all the plugs are removed from. If one plug is not put back correctly, unit will not work. Usually a tight fight sliding out the engine. Plastic cable tie-down between the 2 assemblies can be cut and discarded, this makes re-installing light engine considerably easier.

Cheat the cabinet safety switch with tape or stretch connecting wire across it to hold it in "on" position for test after reassembly.

Service cost may be $150-$200 if you don't do it yourself. We do it in most Canada cities.


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I have a panasonic PT-50LC14. the clean air filter display keeps coming on. I removed the housing for the lamp and cleaned all that area then i removed the back of the tv and cleaned the vents. i watched...

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I was told i need to replace my fan on my sony this something i can do??

there are three fans in the tv, the one most likely causing your problem is located on top of the light engine, above and to the back of where the bulb sets. This will get clogged with dust and stop rotating, but the other two could also be an issue, in any case it will require removal of the light engine to get to two of them. Removing the light engine can be involved, the cables especially the LVDS cable connected the light engine to the Q box can be quite fragile to remove and if it is broken will require replacement and this cable is expensive.

In this tv it is not just replacing the fans, you need to get all the dust out of the unit to prevent it from clogging again. You need to do this without blowing dust into the light engine. If dust get’s into the light engine you will get red, yellow, pink colored patches on the screen, and unfortunately you cannot get into the light engine without damaging it. The light engine is about 1000.00 to replace.

My recommendation is to get a pro to fix it, the cost should not be that expensive the fans are relatively cheap as far as tv parts go. The labor should not be more than 2 hours at most.

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So when calling as if they know how to replace light tunnel. There are some adjustments that also needs to be done once it's replaced. To verify what i am saying go to this site to find out more.

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Power led flashes green 3 times then red 2 times, what does this mean?

hey there, it is somehow dangerous or I can say a hardwork but you may try doing this one..

step 1Remove the back of the TV Unplug everything from your TV before starting, especially power. I have color coded all the images: All red arrows are screws that should be removed All Green arrows …

fa75sh1fb11kzv9.tiny.jpg step 2Prepare to slide out the Light Engine (but do not slide it out yet) This picture shows the right half of the TV when viewed from behind. The 2 screws on the flexible black piece in the upper right should be removed so that the cable in step…

flullavfb11kzvk.tiny.jpg step 3Unplug 2 cables before sliding out the Light Engine (do not slide it out yet) The cable in the upper right should be removed prior to sliding the Light Engine. It is behind the flexible black plastic, which I gently bent out of the way to remove the …

fpo83umfb11kzwd.tiny.jpg step 4More cables and screws to remove before sliding out the Light Engine You must remove these 3 cables and 1 screw before sliding out the Light Engine. I missed this screw when I did this, and ended up having to reshape the metal piece it goes …

f2087vtfb11kzws.tiny.jpg step 5You may now slide out the Light Engine, but do so slowly, as there are still more cables you need to unplug. This picture is a strange orientation, the left side of the image is toward the back of the TV and the right side is toward the front. This view is with the Light Engine sl…

fv6vcn9fb11kzxa.tiny.jpg step 6Remove the cover over the color wheel. There are 4 screws to remove here, then the cover should come off and you will be looking at your color wheel. DO NOT TOUCH the transparent part of color wheel, as the oils…

fs4f0hifb11kzxi.tiny.jpg step 7Remove the color wheel. There are 3 screws and a cable that needs to e unplugged. These screws are very hard to remove, so be careful. The glass in the upper right of the color wheel housing may a…

ftqc5rffb11kzya.tiny.jpg step 8Clean the color wheel I used Windex, and have not had any problems, but I would recommend that you use distilled water. When working with electronics, spray or pour the cleaner onto the paper to…

fenlw2yfb11kzyg.tiny.jpg step 9Put the color wheel back in. This part is semi difficult. You have to peel off the orange rubber washers carefully, put them back into the color wheel support, then put the color wheel back in. I tried…

default.tiny.gif step 10Put the TV back together. Just follow steps 1 to 7 in reverse order to put your TV back together, and enjoy your newly repaired TV.
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