Re: Test Sequence for Diva and Phoenix water level electronic boxes
- From: Simpson <nospam@xxxxxxxxxxx>
- Date: Wed, 31 Aug 2005 07:20:28 -0400
In article <4314FC18.D0A170A7@xxxxxxxxxxx>, coffee@xxxxxxxxxxx says...
> As there are frequent questions about the old style UNIC water level
> boxes I will give a useful test we worked out a few years ago.
>
> The electronics are by Gicar, the same as almost all espresso
> machines. They are no better or worse than those on other machines of
> their era. Newer equipment has better electronics of course. The old
> parts nunbers were DV02 for 230V and DV42 for 115V. The improved
> series for the old machines added a 'X' after the number and the latest
> boxes are 'XN'.
>
> Test: Number all wires so you can put it back together. Test is easiest
> with all wires removed from terminals and power supplied with a patch
> cord.
>
> connect appropriate power (115V or 230V) to terminals 2 and 3.
>
> Measure output (in Volts AC)
>
> 115V box:
> Terminals 1-4 =115V
> 1-5 =115V
> 1-6 = 12V
> (the rest: 1-8, 1-9, and 1-10 will be 20V on all boxes)
>
> Jump (short) 1' to 3' and you should read:
> 1-4 =12V
> 1-5 =12V
> 1-6 =12V
>
> remove Jump 1'-3' and place Jump 2'-4' and you should read:
> 1-4 =115V
> 1-5 =115V
> 1-6 =115V
>
> The 230V box tests the same just Input 230V to Terminals 2 and 4
> and the readings will be similar to above except the 115V readings will
> be 230V. The 12V and 20V readings will be the same.
>
> Often the readings will not be exactly 12V or 20V but a volt or so
> out. The 1'-3' jump simulates the water fill circuit and is the most
> likely one to fail.
>
> Terry M
>
>
Wow. Thanks, Terry. That's great. (no snip for prop purposes)
Ted
--
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