Question about Samsung - Projection TV replacement lamp Projector Lamp

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Continuity test for a projector lamp?

Can I use an ohm meter to test for continuity on a projector lamp?

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  • mjj078 Aug 27, 2008

    Same deal, can you test using an ohm meter?

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2. Projector lamps CANNOT be tested with an AMP or OHM meter. Projector lamps function by igniting ultra-high pressurized mercury vapor accross an ARC tube. At the point where the mercury vapor resides there is no conductive electrical material and therefore testing a projector lamp with an AMP or OHM will not work.

Posted on Jan 19, 2009

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Please contact swati@justlamps.com.sg for all your projector lamps queries. We deals in original replcement lamps for all models and brands available in the market.

Posted on Aug 05, 2008

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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.

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How to Troubleshoot a Clothes Dryer with No Heat


<span>Instructions</span> Things You'll Need: <ul> <li> <span>Volt meter Continuity meter/tester Ohm meter (gas dryers)</span> </li></ul> <ol> For Gas or Electric Dryers <li> 1 Check the setting on the dryer. It's a simple thing, but sometimes people forget that they turned down the dryer for a delicate load.<br /> </li> <li> 2 Check the fuse box. Electric dryers require 240 vaults to run, which means they have a dual breaker switch. If one of the breakers clicks off, the dryer has enough power to run but not enough to produce heat. You may need to replace the fuse to prevent this from happening again.<br /> </li> <li> 3 Check the outlet with a volt meter. As said earlier, electric dryers require 240 vaults to run. If there is not enough power to the outlet, but the fuses are fine, then there is a problem with the wires in your house. You will need to call an electrician.<br /> </li> <li> 4 Check the thermal fuse. Depending on the type of dryer, this fuse will be located either in the front of back of your dryer. It is usually an inch long and mounted in white plastic. Test the fuse using a continuity meter. If the fuse has been blown, replace it.<br /> </li> <li> 5 For electric dryers, locate the heating element on your dryer and test it for continuity using a continuity meter. If it is not working, you will need to replace it.<br /> </li> Gas Dryers Only <li> 1 Check the igniter using an ohm meter. Disconnect the clear plastic connector (called a molex) that attaches the igniter to the burner circuit. Place the probes of the ohm meter on the contacts. It should be below 100 ohms of resistance. If it is above 100 ohms, replace the igniter.<br /> </li> <li> 2 Using an ohm meter, test the continuity between the two contacts on the flame sensor. If there is no continuity, replace the flame sensor.<br /> </li> <li> 3 If none of the above works and you notice that your dryer starts out hot but finishes cold and/or you hear a chattering sound when running the dryer, then your problem is likely with the coils. There is no test for the coils. Your only option is to replace them to determine if this is the cause.<br /> </li></ol>

on Dec 29, 2010 | Dryers

1 Answer

How to use ohm meter to check continuity between terminals on heil talkbox?


Generally speaking, to test continuity between two points of a electrical circuit, put Ohm meter on any scale then you read zero Ohm.
Please remember to turn off the device and pull off any power plug!

Jan 31, 2014 | Dryers

1 Answer

How to use a continuity tester


The most basic continuity tester (or test light or toner) are often said to provide a simple "go" or "no go" type indication (you'll see below that this is not entirely true). They usually are self powered by a battery, and have two probes to make contact with the circuit, component, wire, etc. under test.

Continuity testers are used on dead or un-powered circuits only. Likewise, they need to be tested prior to use to make sure that the battery, lamp, etc. are in good working order. Testing is done simply by touching the probes together. When connected to each other, note the intensity of the indicator - whether it is a lamp, audible alert or other indication. This is your 100% continuity reference indication.

If there is a complete path or circuit between the probes on the tester, an indication will be given. This could be brightly lit lamp, tone or buzz sound from a speaker, etc. A circuit with only fair or poor continuity may provide a dimly lit lamp or a "sick" sounding buzzer. Keep in mind that some items under test may have very poor continuity - say 20% or 30% or other unknown value that will not be sufficient to provide an indication - but will still conduct. This should alert you that a continuity tester really isn't a "no go" indicator. This is important to remember. This is where an Ohm meter shines when compared to a simple continuity tester. It will pinpoint just how much continuity there is in a circuit.

I hope this helps!

May 12, 2012 | Measuring Tools & Sensors

1 Answer

How do you check a thermal fuse on a Whirlpool duet dryer front loader?


These button thermal cutouts should pass an electrical current when cool. Therefore, use an ohm meter or a test lamp to check that. The meter should read zero or nearly zero, and the test lamp should light, to indicate continuity.

Nov 19, 2011 | Dryers

1 Answer

Sole F85 - LS1 appeared on the screen. Motor is not moving. What could be the possible cause?


Dear Sir:

Thank you by your request. I will try to help you, inmediately.

LS1- Means loss of signal.

Please check this very carefully

Connect the machine at your receptacle and try again, if you note there are some red lamp on in the motor control board : is indicative that you must check the conection with motor (plugs) loose or dirty( clean with some special spray for contact, but before to due that disconnect the machine again.
If the problem persist you must exchange the display board.

If not Red lamp is on, you can check the motor if is open, or short, or in band condition, you must check with the DVOM, ( digital voltimeter) and finally if you repair the motor an try again, the faulty is motor control board.
How to measure FUSEAND CONTINUITY A digitalmultimeter is the ideal multimeter t use to check fuses. You can test afuse using either a digital volt-ohmmeter or an analog volt-ohmmeter. Thedigital multimeter uses a LCD to indicate the condition of the fuse under testwhile an analog meter uses a traditional meter movement to indicate the fusecondition. Difficulty: EasyInstructions
Things You'll Need
  • Digital multimeter or analog multimeter
1. Usinga digital multimeter
o 1 Connectthe test leads to the volt-ohmmeter. Plug the black test leads into the blackjack marked "Com" or "Common" on the front of the meter.Plug the red test lead into the red jack marked "Volts/Ohms" on thefront of the meter. o 2 Setthe meter's function switch to "Ohms" and the range switch to the"R x 1" scale. If your digital multimeter is an auto ranging meter,you will not have a range switch. Instead, you'll have just a function switchbecause the meter will automatically select the right range for the quantitythat you are measuring. o 3 Turnoff the power and remove the fuse to be tested from the circuit. Never test afuse for continuity while it is still connected to the circuit that it is usedto protect. If the circuit still has voltage, the meter will be irreparablydamaged. If the fuse is still in the circuit when tested it is possible to geta false indication that the fuse is good if the meter gets a completed circuitthrough other circuit components. To be safe, always remove the fuse from thecircuit before testing it. o 4 Touchthe black test probe to one end of the fuse and the red test probe to the otherend of the fuse. It does not matter which probe you touch to which end becausefuses are not polarized. You are checking to see if there is continuity throughthe fuse element. A reading of approximately 0.5 on a digital meter's LCDindicates a good fuse. Most digital meters read their own internal fusesresistance, hence 0.5 Ohms and not 0.00 Ohms. LCD readout of "O.L."indicates no continuity through the fuse. The fuse is bad and needs to bereplaced.
Thank you in advance, sincerely . God bless you

If you need further assistance, please contact me.

E.CUADRA
MANAGUA, NICARAGUA.C.A.

Sep 29, 2011 | Exercise & Fitness

1 Answer

How do i test the dryer thermol fuse


Please rate me
You can check the thermostat/thermistor one at a time by removing the two wires and checking the continuity with an ohm meter .
(The thermistor/thermostat should have/show continuity)
Thermal fuse...If it overheats, the dryer will not operate.
It's located on the blower housing. It cannot be reset.
A vent clogged with lint can cause it to overheat.
You can test it with an Ohm meter or continuity checker, if no continuity, replace it)

Dec 27, 2010 | Dryers

1 Answer

HD20 switches on by itself


Hello,

the projector will shut off when the lamp hour count reaches expected lamp life. It will restart only long enough to read the hour meter again then shut it's self off again. You can manually reset the hour meter to continue using the same lamp. Good luck.......

Aug 02, 2010 | Optoma HD20 DLP Projector

1 Answer

Lamp died and remote does not work


I don't think the problems are related. The bulb shouldn't have failed as it is rated at 2000 hours. As for testing the ballast I don't believe that a conventional meter would do it. You would need a lamp testing device. For more go to http://www.myprojectorlamps.com/testing.html Since projector lamps or ballasts are not cheap you may want to have a a/v repair shop check your projector, because of the early bulb failure.

Feb 02, 2010 | BenQ PE5120 Multimedia Projector

1 Answer

Kenmore electric dryer model number 86860100 dryer not heating.....cleaned out vents not the problem....everything else seems to work.. I had seen in the past it glow in back of the dryer so I turned out...


hello there:
Testing with an ohm meter checking on a dryer....
These are the places that pass voltage to the heater elements on an electric dryer. In order to check a dryer for no heat, here is a list of places to check. Remember to always unplug the appliance before starting testing with an ohm meter. Always remove wires from the part you are testing with an ohm meter ( write down what goes where first before removing any wires ).
Meter testing and usage tips.
1. Power supply-check power supply at terminal block where cord enters the dryer. Should read 240V. If you read 240V here, tested with a volt meter, unplug dryer and test components with ohm meter.
2. Thermostats-Cycle and safety thermostats-read them with an ohm meter. Should show continuity . How common thermostats work.
3.Timer-The timer has a set of contacts that pass voltage to the heaters. If you can not determine by wiring picture what they are, check across the two terminals with the largest wires on them. The heater wires are almost twice as large as the others. You should read continuity with timer in heat mode.
4. Thermal fuses-In recent years the makers of dryers are using thermal fuses to let you know something is wrong with your dryer. They are generally non resetting and have to be replaced. The thermal fuses are located on the heater element housing and should read continuity if read with an ohm meter. Most blown thermal fuses are the result of vent/air flow problems or a grounded heating element.
5. Selector Switches-Read the wiring picture and determine which switch is closed. You should read continuity across closed switches.
6. Safety Switch on Motor-There is a safety switch on motor to insure that heaters can not come on unless motor is running. It is normally open when the motor is idle/not running, and closes when motor runs. In order to check with an ohm meter, remove the two large wires on motor switch and make them electrically safe. Tape them. Plug the dryer in and start motor. Check continuity across the terminals on the motor switch you removed the heavy wires from. If it is ok you should read continuity. Remember that the smaller wires in a dryer carry the 120V and the large wires carry 240V. There is no voltage on these two terminals with wires removed. It is ok to test with ohm meter.
7. Heat elements-Test heater element with an ohm meter. You will read continuity across a good element 8-12 OHMS

Jan 09, 2010 | Kenmore Dryers

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