Question about Toshiba TB25-LMP Projector Lamp

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New lamp TB25-lmp doesn't work

I have a 52" Toshiba LCD projection TV. I have replaced the lamp one time before. Now is my 2nd time to replacint it. But when I got my new lamp, plug it in, did not work. Took it out and ohm it (dial is to max resistance), no reading. It is open circuit. What is the lamps' theory of operation? I believe it has parallel connections; one is for the light, one is for the TV to detect the circuit continuity so that it will turn on the light. Please help. Thanks, Andy

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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: toshiba DLP TV

Dear Sirs,
in which country you want to get this part,In india HCL Infosystems Ltd can provide you this particular part.
You can get lamp for your projector from Toshiba authorised dealer also.

By
Satpal

Posted on Jun 10, 2008

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SOURCE: Bulb Replacement

the bulb hot indication has nothing to do with the lamp counter.u would have reset the counter as suggetsed by the manufacturer,
this problem is because of the following:
1) wrong bulb
2) cooling fans not working adequately
3) defective ballast
check the above for a solution

Posted on Feb 09, 2009

milkburp
  • 416 Answers

SOURCE: I have replaced my lamp unit TB25-LMP but the red

Unplug the TV, ensure the lamp door is installed and the screw is snug. Plug the TV in and wait a moment. touch and hold your finger on the power button on the front of the TV. If your TV does not power up, your ballast and power supply should be suspect. Many Toshiba DLP sets use a similar lamp design. They have been known to burst and cause a momentary short. This can knock out the power circuits which feed the lamp. If this is the case, post back for further details if you wish to repair this yourself. I hope this was of some assistance.

Posted on Mar 22, 2010

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1 Answer

I just replaced the lamp for my Toshiba tv, lamp model TB25-LMP and the red light is flashing while the green light is on what do I do? It worked yesterday perfectly.


Light bulb access door may have a safety switch on it. Try locking/unlocking or opening/closing it several times to clean contact points. I did this on my Sony Wega.

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This is a common symptom for the lamp being burnt out.
The TV set detects that and goes on a safety mode.
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Sounds like the ballast is having an issue. The ballast is easially replaced and should be available from www.tvcircuitboards.com

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It sounds like your lamp is getting close to the end of its lifespan.The lamp is what gives your screen its brightness.With time they start losing this brightness.If you were to wait to replace it till it goes out completely you would have a black screen.You can purchase a quality lamp at discount-merchant.com

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1 Answer

I have replaced my lamp unit TB25-LMP but the red


Unplug the TV, ensure the lamp door is installed and the screw is snug. Plug the TV in and wait a moment. touch and hold your finger on the power button on the front of the TV. If your TV does not power up, your ballast and power supply should be suspect. Many Toshiba DLP sets use a similar lamp design. They have been known to burst and cause a momentary short. This can knock out the power circuits which feed the lamp. If this is the case, post back for further details if you wish to repair this yourself. I hope this was of some assistance.

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Have you replaced the lamp since purchasing the unit. If it has been at least two years since you brought the television, then its time for a new one. The lamp door is usually located on the back of this set but some times on the side. Remove the lamp and it may be shattered in its housing, replacing it with Lamp part # D95-LMP lamp.

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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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