Tip & How-To about Televison & Video

After lamp replacement projection TV fans not working.

Your lamp in your LCD/DLP projection unit failed and you replaced it. Now the unit turns on, lamp lights, no fan and after a short time the lamp and set turn off. What could the problem be?

One thing which we know for certainty is that it is not the ballast or the lamp would not light at all and an error code would be displayed on the standby lamp.

I will list the possible problems in their order of probability.

The first thing you should do is go to

http://www.encompass.com

and use their search engine to locate parts for your model. They may or may not have a service manual for your unit. They have quite a few, which are downloadable as pdf files, but not necessarilly all of them.

I believe for this repair you should have the service manual. If encompass does not have it I recommend going to

http://www.servicemanuals.net

to purchase one. They cost about $16.00 USD and are immediately downloadable.

With the service manual in hand locate any thermal fuses in the area of the lamp circuitry. Test any of these fuses with a DMM to see if they are open. If they are, replace them, and test your unit. If that was the problem your unit should be fixed.

If the thermal fuses are Ok go to my tip at

http://www.fixya.com/support/r5207658-dlp_tv_run_after_replacing_lamp

which explains how to identify any problems with the lamp door safety switch and how to repair them. If this is the problem your unit should now work.

If the unit still does not work you may have to reset the lamp timer for the projection TV to stay on. Not all models require this but some do. I have tips for all major projection TV manufacturers. Do a search on the FixYa tips and ask for "Lamp reset procedure for (enter your brand here)". This should bring up the appropriate reset procedure. Follow the instructions and your set should now be working.

Thanks for using FixYa and for the great rating. Please consider a testimonial. Thank you.

hardrocko

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1 Answer

Bought Samsung dlp h-l 5667w new in 2005. Replaced lamp, fan, and color wheel in 2008. Now lamp lights up and lamp indicator on front lights up, fans turn on, but tv picture will not show. After a few seconds the process stops and everything turns off.


It time to replaced the tv projection lamp again,the tv projection lamp life span have ended.The tv projection lamp life span only last 2000 hrs.Average out like 1 1/2 or 2 years max for tv on watches 4 or 5 hrs of tv every days.

Jul 07, 2011 | Samsung HLR5667W 56" Rear Projection HDTV

1 Answer

i bought a SONY GRAND WEGA LCD Projection HD-TV about 2 years ago i rarely use it about 6 to 7 times,i turned it on lately and the screen shows no picture ,power light blinks yellow for a few seconds then changes to blinking red and turn off automaticly and makes a sound like a heavy fan


Its possible that one of your fans has failed, and or it could be the lamp itself. Sony television will not power on if a fan is faulty. Open the back of unit and look at all fans to make sure they are running, if so then replace your lamp.

Oct 12, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Wont turn on. Green light comes on for a few seconds, andthen goes back o0ff.


Hi if its a Lcd or Dlp rptv most likely its time to replace the lamp if tv is between 2-4 yrs.If you hear clicking it could be the ballast which is the board that powers the lamp.Make sure fans are running ok ,dust them out if they are dirty.God bless you!

Oct 07, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Power light flashes five times and then nothing.


fail safe mode usually is caused by a short on your main bd. but if its a DLP or LCD projection tv to replace the lamp the door sometimes has a safety switch that will not alow a tv to turn on if the door was ajar

Mar 03, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

green status light keeps blinking after lamp replacement


continuous blinking green light indicates that the capacitors have failed on the DM pwb. You need the V26 DLP DM repair kit which is available at the following link under their repair category.
http://servicemanuals.vstore.ca/

Sep 07, 2008 | Mitsubishi WD-52525 52" Rear Projection...

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