Using bulb to test X main after IGBT/Gate driver IC replacement

[tech2014]

I have a Samsung plasma TV that keeps clicking at power up. I found VS measured shorted on the X Main. I found it had 4 shorted IGBTs. I replaced all of them and also plan on replacing all of the gate driver ICs, FAN73611 and FAN73711. After replacing the gate driver IC, I want to somehow test the board with a bulb to make sure I didn't miss anything.

How would I go about doing this?

[Alastair E]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

Disconnect the Vs supply Only from the Y-SUS/X-SUS, then wire a 100-150W 240V bulb in series from Vs plug on the PSU to Vs point on Y-SUS/X-SUS--Whichever you're testing/protecting....

[tech2014]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

ok, how do you wire the bulb?

[Alastair E]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

Youve replaced IGBT's, Driver-chips etc etc.....

And you're asking HOW TO WIRE A BULB!!

Sheesh!!

[tech2014]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

never done it or know anyone who has. bulbs don't come with wires.

[Alastair E]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

Oh good grief....

Batteries dont come with leads--But you manage with those!

Thats what Soldering-Irons are for!

[vinceroger69]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

i just use a bulb holder for the bulb and then connect that way.

[tech2014]

Re: Using bulb to test X main after IGBT/Gate driver IC replacement

thanks for the reply vinceroger69, that makes sense, and without the attitude