[tech] Status of snack machine

[Harry]

Nick Bannon wrote:

> http://www.veii.com/pages/zoomInParts.asp?backpage=search.asp&partID=51273
> 
>  PartNumber :  	 VE8304
>  Price : 	$30.00 (each)
>  Description : 	DRIVER CHIP FOR AP COF/SNAK UCN5890A
>  In Stock : 	YES

Good hunting Nick.

Finding a number of parts for spares would have been desirable but it is
cheaper that $100US but both costs are insignificant compared to
diagnosis and resoldering effort _or_ time and prototyping costs of a
re-engineered solution.

Does it warrant buying two ($60) so we have a spare in the bottom of the
machine in case spares have vanished next time around ?

>>No stuck pins of low-side driver (UCN5841A).
> 
> (They don't seem to have that part listed, perhaps it fries less often! )

Yes. We haven't tested the part other than it was not in a "shorted
outputs" state so it may well be ok.

Harry