Dim Bulb Tester

[tech2014]

I built a dim bulb tester to prevent parts from blowing up on me. I assume that in order for me to use this tester to test tv boards, like the Y or X main, I can just use a power cord and connect it in series with whatever voltage line may have a problem, then connect it to the socket.

BTW, this socket uses a 120V 150W max bulb. I have a 150W bulb. I can't find any 240V bulbs, is there a place to order them? I know I need it to test Tv boards.

[Moreno83]

Re: Dim Bulb Tester

You need to order them from european sites that ship to Canada.

Can someone explain why you need this bulb for testing? For example , i have a SC board with shorted components. Do i need a bulb to test the board after replacing components? Or is this just a test for testing stable voltages?

[Alastair E]

Re: Dim Bulb Tester

Either that--Or use Two 75W 110V bulbs in series.

[vinceroger69]

Re: Dim Bulb Tester

just a thought if your on 120vac why do you need a 240v one

[tech2014]

Re: Dim Bulb Tester

just a thought if your on 120vac why do you need a 240v one

To test for shorts on the VS line on a tv X or Y Main.

[Alastair E]

Re: Dim Bulb Tester

just a thought if your on 120vac why do you need a 240v one

Vs is usually over 200V on Plasma sets--Using a 110V bulb would be stupid!

[vinceroger69]

Re: Dim Bulb Tester

Vs is usually over 200V on Plasma sets--Using a 110V bulb would be stupid!

cheers alastair you can tell ive only worked one 1 plasma hence my question

[Moreno83]

Re: Dim Bulb Tester

Haha , that 110v bulb could give you a "plasma effect" for a few secs....

I would try eBay and order these bulbs from china! If you have trouble ordering these lamps and you really want 1. I can buy one here and send it to you?

[tech2014]

Re: Dim Bulb Tester

thanks moreno. I will check eBay and aliexpress. Probably easier just to connect another bulb in series to get the 240V.

[Moreno83]

Re: Dim Bulb Tester

No problem. Ofcourse that would be the same.

[tech2014]

Re: Dim Bulb Tester

thanks

[tech2014]

Re: Dim Bulb Tester

would this work? I will also need a bulb holder that can heaved the voltage and wattage.

http://www.ebay.ca/itm/Studio-220V-2...AAAOSw9mFWKFiM

[Moreno83]

Re: Dim Bulb Tester

Thats 250W! Not a little bit over the top? haha.

Problem is , all company's are either making energy saving bulbs/lamps. Those traditional bulbs are hard to find online. Most of them are also led.

I think if you search for " 230v lamp " you will find more options. Here in europe most bulbs are 230v. ( E27/230v )

[Moreno83]

Re: Dim Bulb Tester

So if you don't mind led :

http://www.ebay.com/itm/6W-A60-Led-L...yarIFEwAFfOhvw

[budm]

Re: Dim Bulb Tester

Vs is usually over 200V on Plasma sets--Using a 110V bulb would be stupid!

The lamp is being used as the load for the Vs output? or as automatic current limiter on the input side of the Vs?

[Moreno83]

Re: Dim Bulb Tester

I think they use the bulb for the output Vs. Not sure , but i also don't get why they use the bulb......

[tech2014]

Re: Dim Bulb Tester

The lamp is being used as the load for the Vs output? or as automatic current limiter on the input side of the Vs?

Hi budm. I had a XSUS board with 4 shorted IGBTs. Replaced all of them including the gate driver IC, and parts blew up again. I want to use the bulb tester as a current limiter, to test the board after part replacement as I don't want to blow the new parts. I need a higher voltage rated bulb , like 230V to test the VS line.

[budm]

Re: Dim Bulb Tester

Using two 120V bulb is series will be easier choice.

[tech2014]

Re: Dim Bulb Tester

yes that what I am planning.

[tech2014]

Re: Dim Bulb Tester

So when testing the X SUS board , I would just remove the VS connection going from the power supply to the X SUS board, then put the power cord on the VS line. Not sure exactly how to do this without damaging something.