[GreenKeys] Friden SPD-V

[Michael Zahorik]

Simon, I have not found the schematic yet and also little onthe parity stuff. But the parity idea was a good clue. Just below the punchrods are a number of contacts that only have two wires leaving the set. Iassume these are the parity contacts. So I just removed the 2 wires and now theFeed Tape switch works, but the 'E' key will not. I also shorted the two paritywires and it indeed drops out the keyboard lock relay, so this is part of the problem. Iwill have to more closely inspect all the contacts. Something is either stuck,welded or ???? The 'E' seems to work a few times with the parity off, but stilllocks up the keyboard after one or two punches. Thanks for the help, stilllooking for the schematic and why the 'E' key doesn't work correctly whenpunching. Mike Mike Zahorik (414) 254-6768

      From: simon <simski at dds.nl>
 To: Michael Zahorik <m.zahorik at sbcglobal.net> 
 Sent: Friday, February 17, 2017 11:30 AM
 Subject: Re: [GreenKeys] Friden SPD-V
   
that is the parity check kicking in. probably a faulty contact in the 
array of contacts in the punch module. the schematics are available at 
bitsavers but several flexo types are combined into one pdf

On 17-02-17 17:54, Michael Zahorik wrote:
> I have my Flexowriter working pretty good. I had JJ Short recover my
> power roller which repaired a number of items in the typing unit. I'm
> adjusting the impact of the hammers. Seems some keys hardly hit the
> paper, while others smash through the paper. The last few days I have
> been trouble shooting a problem with the paper punch. Seems that when
> ever the 'E' key is typed with the punch unit on, the key lock will
> occur. The 'E' works fine with the punch off. This also happens after
> the Tape Feed button is used. No other keys or switches will do this. I
> found that the LKL relay drops out when this happens. My current trouble
> is that I do not have a schematic for the SPD model. I have a schematic
> for the FL model, but they are not the same. Does anyone have this
> schematic or a link to where I can find one? Thanks for the help.
>
> Mike Zahorik (414) 254-6768
>
>
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-- 
Met vriendelijke Groet,

Simon Claessen
drukknop.nl


   
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