[tech] Coke machine lights, empty detection, fans

Nick Bannon nick at ucc.gu.uwa.edu.au
Mon Feb 4 21:05:53 WST 2008


On Sun, Feb 03, 2008 at 12:01:21AM +0900, Nick Bannon wrote:
[...]
> The resistors get _hot_. The 4N38A opto on slot 0 is burnt out and gets
> warm. Slot 6 empty detection sometimes works, possibly a dry joint.

TODO: The slot 0 optocoupler is now in a socket - if someone has a 6
pin optocoupler to hand *TURN THE MACHINE OFF* then replace the opto
and see if it fixes slot 0!

I resoldered the capacitor on slot 6, looks like it's working again.

TODO:
> [MTL] and I inspected the fans recently - there were originally two
> mains ones; and one broke. The 12V replacement works fine, so we should
> probably go 12V-only and clean up some unnecessary mains wire.

Nick.

-- 
   Nick Bannon   | "I made this letter longer than usual because
nick-sig at rcpt.to | I lack the time to make it shorter." - Pascal


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