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Bad caps..

A project log for Tubeclock

Original name I know. Use a view finder CRT as the basis for a clock.

jeremy-gJeremy g. 06/26/2016 at 21:300 Comments

Seems as though something in the control board has gone to crap. I moved the setup today and separated the wires to clean up the "harness" and put the casing back on the crt.

Labeled all the wires, then proceeded to hook the crt controll board back up. Flip the power supply on and wohhh 1.2Amps!!! That's alarming I thought.. I quickly shut the PSU off and checked my connections... everything was fine.

I can't quite figure it out. Although I haven't taken much time to debug it yet. The flyback usually has a nice high pitch whine that only my wife can hear, so that didn't happen (I can hear it when the unit flips on and then it goes away.)

All in in all the unit from what I have seen only consumes around 110mA. Give or take a few mA. None of the chips seem to be effected, I connected the secondary ground and all the leds light up on the control board. So I am hoping that it's just an old cap that failed closed and is allowing current to pass.

I'll replace the caps and post another log update when I figure out what is going on. I'd hate to think I somehow fried the little guy...

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