DiyLightAnimation

Hardware => Lynx Express => Topic started by: Mickpat on November 30, 2013, 07:38:21 pm

Title: Single channel remains dimmed all of the time
Post by: Mickpat on November 30, 2013, 07:38:21 pm

I have a single channel that is always lit and stays on about 50% brightness.  It can still be controlled, going to 100% but returns to dimmed.  Any ideas?  Bad triac? 

Title: Re: Single channel remains dimmed all of the time
Post by: ratroder on November 30, 2013, 09:15:05 pm

It is either a bad triac or a bad opto coupler (the little black chip). Swap the opto and see if the problem persists. If it does then you have a bad triac.

You are not the only none with this issue. I have the same problem with on of my controllers too. Bad triac on mine.

Title: Re: Single channel remains dimmed all of the time
Post by: Mickpat on November 30, 2013, 09:23:33 pm

Yea, I think it is a Triac.  :(  On my list of items to fix for next year.

Title: Re: Single channel remains dimmed all of the time
Post by: arw01 on November 30, 2013, 09:23:41 pm

I thought the opto was the white chip?

Now what causes a triac to go bad, an overload on the channel or ??

Title: Re: Single channel remains dimmed all of the time
Post by: caretaker on December 08, 2013, 09:19:35 am

Usually a short to ground but yes overloading the triac would do it.

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I thought the opto was the white chip?

Now what causes a triac to go bad, an overload on the channel or ??