DiyLightAnimation

Hardware => Lynx Express => Topic started by: sabie on January 04, 2013,

Title: 47k resistor burnt up channel still worked
Post by: sabie on January 04, 2013,

47k resistor burnt up channel 1

i replaced it and the channel seems to work fine any ideas on what caused it

the channel had one rope light attached too it for my christmas show and ran the whole season did not find bad resistor until i took the display down

Title: 47k resistor burnt up channel still worked
Post by: rm357 on January 04, 2013,

I assume you are talking about the snubber resistor between the triacs and the terminals.

If it was a 47k resistor, it was either defective or you had a really nasty voltage spike - like lightning 2 houses down... 

If it was me, I would assume that I swapped a couple of resistors when i was building it and would double check all of the other resistors on the board...

Title: Re: 47k resistor burnt up channel still worked
Post by: Dennis Cherry on January 05, 2013,

What is the wattage of the resistor and composition?

Some resistor types are more efficient that others.

Some are: Carbon composition; carbon film, wire, ceramic.

Title: Re: 47k resistor burnt up channel still worked
Post by: sabie on January 05, 2013,

what ever came from coop originally
looked the others over they all appeared correct
we did have one really bad lightning storm in december