Question about Projection Televisions

1 Answer

Lamp Can I test A lamp with an ohm meter

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 188 Answers

Yes. It should show low ohms. If you've never used one before compare the readings to a norman light bulb and they should be similar. Keep in mind that oils from your fingers will shorten the lamps life if it is good. So if you need to replace it hold the lamp with a clean lint free cloth. Good Luck.

Posted on Sep 24, 2008

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Samsung TV no picture, have sound, all indicator lights are off

Before you buy a new lamp, use an Ohm meter to test the across it's contacts for continuity. If the test shows the lamp's circuit is pen (infinity resistance reading on the meter), it will give you more confidence that the lamp is the problem. Also, look for blackening or obvious failure in the filament to confirm it. As has been said, the lamp has a finite amount of run-time before it fails. Think of it as a feature that makes the projection television much easier to keep running indefinitely than a flat panel TV.

Feb 16, 2015 | Samsung HL-S5087W DLP TV

1 Answer

I have a 50 inch DLP samsung and it wont power on after making a lot of noise (I replaced the lamp) worked fine for a few days now the red light and the right side green light is blinking. any sugge

The answers above are correct. It's either the lamp or the color wheel. Testing the lamp is pretty straight forward. Use an Ohm meter to see if the it's filament has continuity. It's unlikely that a good color wheel would fail immediately after changing the lamp. Look to see if some wiring is out of place and rubbing the wheel causing the noise you described. A jammed but otherwise good color wheel would cause the TV to shut down and display an error code.

Sep 12, 2014 | Samsung HL-S5087W DLP TV

2 Answers

High temp warning red light blinks twice

there is a short in B+ over current protection (OCP) unit,or a short in any of the power supply circuits. you need a ohm meter,or volt meter to carefull of high voltage. you can get parts & supplys at Mats Electronics. #1-800-628-1118

Feb 17, 2010 | Sony KDS-R50XBR1 50" HDTV

1 Answer

Sony xl-2100u lamp

Refer to your owners manual on lamp replacement. Remove the old lamp and look at it. If it looks "blown" (like a flashbulb) then it is defenitely defective.

May 19, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Samsung dlp tv no picture

Sure, you can test by Use the screwdriver and remove the protective cover that conceals the ballast.

Observe the ballast before proceeding. If oil is leaking from the ballast, stop here and remove the ballast. Leaking oil indicates that the ballast is damaged beyond any doubt as the internal seal has been ruptured by excessive heat.

Test the high voltage side for continuity between the wires going to the ballast tombstones. There will be either one or two wires going to each tombstone fixture. Regardless of the number of wires, the colors will be the following: Blue or yellow are the power wires and white is the common or neutral wire. this could differ in many models.

Turn the Volt Ohmmeter to "ohms" and touch the ends of the two probes together. The meter should show continuity or a direct short. Touch the probes of the meter to one of the white wires and one of the colored, blue or yellow, or any wires that comes from the ballast. This should show a short or continuous circuit. If it does not, the ballast is bad and should be replaced.

Oct 01, 2008 | Samsung HLM507W 50" Rear Projection HDTV

3 Answers

Sony xl-2100u lamp

you cant test the lamp the only way for sure to know is if the lamp exploded and you can tell that by looking down inside the lamp, yes there are other things like ballest and engine lamp, sony also has a recall on some of the sets, however all that info is at work so i don't know if this set is one of them, contact me on Monday and i can tell you more.

Jan 19, 2008 | Sony Grand WEGA KF42WE610 42" Rear...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

68 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers


Level 3 Expert

61292 Answers

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

Answer questions

Manuals & User Guides