Question about Toshiba 72HM195 72" HDTV

1 Answer

My set switches from low lamp to bright lamp on its own constantly

So I bought my 72" Toshiba DLP last year in Jan of 06. Tv has been awsome to me and the whole family. Of course me being the smart ass that I am didnt by an extended warranty. Well this friday when I turned on the set the picture keeps switching from bright to dark, like as if it switching from high lamp to low lamp by itself. When I turn the tv off the yellow light keeps blinking and you can here the little bell continuing to switch the lamp setting. WTF called Toshiba and they said I was screwed and that I need to take it in to a Toshiba repair shop. Anyone with some insight or ever had this problem with there tv?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: My set switches from low lamp to bright lamp on its...

I just got mine back from the shop withe a similar issue. The picture would dim especially with dark scenes and you could actually hear the lamp popping and clicking. It was not consistent enough that I had to video tape the issue for the technicians. In short, they decided that the ballast was faulty, unfortunately, the only way to replace the ballast is to replace the entire light engine. The part is about $320 and they also replaced the lamp for $150. The extended warranty would have only covered parts I believe so you may have ended up OK.

Posted on Aug 15, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

How to replace procector lamp in model 46h84 toshiba

Projection TV sets have three tubes - red - blue - green and they don't fail often...they are located inside the tv DLP TV sets use a single bulb and a clot wheel to make the three colors display...DLP bulbs do fail about every two years and will need o be replaced. Replacements can be found at and its located behind a small door on the rear of the tv.

May 19, 2013 | Toshiba 46H84 46" Rear Projection...

1 Answer

My tv's screem is little dark

If you set the lamp mode to LOW POWER, each time you turn ON the TV the lamp will start out at HIGH BRIGHT mode, but will switch to Low Power mode after a short period of time. You may notice a change in screen brightness when this happens. This is not a malfunction.
Just check whether you have selected this mode. Go to its user manual [P57]. All details are there about the lamp brightness settings. If it is not set to Low Power and still you get a dim picture, the lamp may be weak and has to be repaced. OK.

Nov 23, 2011 | Toshiba 65HM167 65" Projection Television

1 Answer

Got a new lamp tv works great but wen I turn it off it has a very quiet hum is this normal also wen I turn it off blonks green for a while befor eventualy going away what dose this mean...

Hello; The noise when turning set off is likely the fan that cools the lamp down gradually. The lamp can crack if the fan does not work. Dust in the fan can also add to the noise. When the set is turned on, the microcomputer watches the lamp come up to full brightness and shows this with the LED colors. All lamps containing mercury take time to get up to full brightness.This also applies to mercury compact florescent lamps, yard lights, and even neon signs that contain mercury.

Jun 07, 2011 | Toshiba 52HM95 52" HDTV Projection...

1 Answer

My Samsung 46in DLP turns on but within a few minutes it truns off and the timer, lamp and red stand by/ temp lights blink. Any Ideas?

The blinking lights usually indicate that the lamp is faulty or burnt out. In this case a new lamp would be required. The lamp in your projector set should last around 3-4 years of typical use. If your lamp is at the end of it's life you may have noticed a gradual reduction in brightness over the last few months. In this case if it's still in warranty contact Samsung to arrange for a replacement lamp.
Occasionally the lamp may not come on even when it is not burnt out. You could try turning the power off for 60 seconds on the back of the set. The other possibility is that the lamp is loose. Refer to your manual on replacing the lamp and follow the instructions removing the lamp and then put it back into place. If neither of these work you will need to get a new lamp.

Feb 28, 2011 | Samsung SP46L6HXX/XEU 46" HDTV-Ready DLP...

2 Answers

Picture getting darker over the years

It could be your Light Engine. However, I would first check a few things:

1. Make sure your Low Power/Lamp settings are adjusted so that they meet your brightness needs.

2. Make sure you used a Mitsubishi original lamp, as generics get chewed through fast and hard.

3. Try another lamp; sometimes you can get a bad one in the bunch.

All those things don't work, consider a Light Engine ($400 + for parts; $300+ for labor)

Mar 11, 2009 | Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

Lamp burnout?

most probably you have a bad bulb. in most cases you can take the bulb out and you will see it cracked inside the glass mirror.anyway the first approach is to replace the bulb.the part number should be on a label on the bulb.if you can not find it leave a message and i will find it for you.

Jul 25, 2007 | Toshiba 72HM195 72" HDTV

Not finding what you are looking for?
Toshiba 72HM195 72" HDTV Logo

342 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Dave Naylor
Dave Naylor

Level 3 Expert

834 Answers

The Knight
The Knight

Level 3 Expert

66456 Answers

Are you a Toshiba Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides