Magic Smoke

[edmond22]

Hi

I have a major problem on my machine, I moved it recently and just finished connecting everything up today and went to test fire it, suddenly I smelt a burning smell and saw smoke coming from the power adjustment knob.
The laser tube PSU seems dead after this happened, its fan still runs but the TL and WP leds don't come on anymore, any suggestions pls

[lovebugjunkie]

Have you opened it up and looked inside, it may just be a blown fuse or easy to replace component on the low voltage side .

[edmond22]

opened it up, fuse is good, no burnt tracks or components on the pc board.
Im going to replace the power control pot and have another go tomorrow.

[edmond22]

It's solved now, it turned out the connections from the laser PSU to the tube has come loose so I redid them and its all sorted now. I retied them using Barts method.

[lovebugjunkie]

Find it interesting that caused your power pot to smoke, have to remember that.

[edmond22]

Find it interesting that caused your power pot to smoke, have to remember that.

Me too, I did check the pot with a digital multimeter and it still works fine kinda weird