[GreenKeys] ASR33

[Wayne Durkee]

450 MA to the printer selector magnet is normal.

Mike, do have the heat sink bracket in place?

Wayne


> On April 12, 2017 at 7:32 PM Michael Zahorik <m.zahorik at sbcglobal.net> wrote:
> 
>     The 20/60ma is the current into the drive board. This higher current picks the selector magnet.
>      
>     Mike Zahorik (414) 254-6768
> 
> 
> 
>     ---------------------------------------------
>     From: Sam Stinson <samstinson at gmail.com>
>     To: Michael Zahorik <m.zahorik at sbcglobal.net>
>     Cc: Jim Haynes <jhhaynes at earthlink.net>; "greenkeys at mailman.qth.net" <greenkeys at mailman.qth.net>
>     Sent: Wednesday, April 12, 2017 6:16 PM
>     Subject: Re: [GreenKeys] ASR33
> 
>     Shouldn't it be a 20mA or 60mA loop current for the model 33?
> 
>     On Wed, Apr 12, 2017 at 3:59 PM, Michael Zahorik <m.zahorik at sbcglobal.net mailto:m.zahorik at sbcglobal.net > wrote:
> 
>         > >         Yep, checked that, it's about 450 ma. I think this unit was used for an airline. There where United marking on the interface converter. So I suspect that it was ON all the time. Seems all the top resistors, R2,6,7,8 all have brunt the board.
> >          
> >         Mike Zahorik (414) 254-6768
> > 
> > 
> > 
> >         ---------------------------------------------
> >         From: Jim Haynes <jhhaynes at earthlink.net mailto:jhhaynes at earthlink.net >
> >         To: Michael Zahorik <m.zahorik at sbcglobal.net mailto:m.zahorik at sbcglobal.net >
> >         Cc: "greenkeys at mailman.qth.net mailto:greenkeys at mailman.qth.net " <greenkeys at mailman.qth.net mailto:greenkeys at mailman.qth.net >
> >         Sent: Wednesday, April 12, 2017 5:48 PM
> >         Subject: Re: [GreenKeys] ASR33
> > 
> >         you might measure the current through the selector magnet and see if it
> >         is 500 ma.  Check whether the power transistor is shorted.
> > 
> > 
> > 
> > 
> > 
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