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Simple, you blew the output devices. They short on when blown in many cases. BTA24-600CW

The bigger question- do you still get a power status LED? I'm asking, because many failures, if the voltage backfeeds into the microprocessor, it blows it and shorts the 5V logic voltage supply. The processor is not a part we can replace because we do not have the firmware to flash to the new part.

Again, output device failure =possible fix

No light= this just became a constant 18V supply.



CW 80 repair topic https://ogrforum.com/...80-disassembly-tools

Also, a schematic was posted in this topic

https://ogrforum.com/...7#147690501584331947

Thanks to @gunrunnerjohn

Also, in my experience measuring using a meter- some units have more "bleed" than others, so a load like a light bulb is very useful.

In other words:

#1 ensure your wiring and the version of CW80 you have is not bonding the 2 outputs because of red posts being common. Again, it's possible that a red post common in certain wiring situations could appear as bleed or constant on because of the shared common post.

#2 Don't fool yourself by just measuring with a (edit) high impedance digital voltage meter, that the output is not "throttle" controlled. You need a slight load- a single bulb will work.

Last edited by Vernon Barry

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