[GreenKeys] M28 Troubleshooting Question

[Cory Heisterkamp]

By Jove, I think I'm 95% there. Apparently the spacing when running open is normal. After making some repairs to the keyboard and bringing a 60ma supply over from the other building we are in business. The only issue I'm seeing is the spacing of some letters when printed. The letter keyed is always correct, but some letters 'bunch' (they are consistently the same letters, such as O and F together).  -Cory

On May 3, 2013, at 12:15 PM, David Christ <radioham at mchsi.com> wrote:

> Do you have 60 ma loop current going through the selector magnet?
> 
> David
> 
> 
> On May 3, 2013, at 11:59 AM, Cory Heisterkamp wrote:
> 
>> Hi guys,
>> 
>> So I'm in the process of bringing a (new to me) 28 back into service after several years storage. This week I've managed to degrease the keyboard/base and the typing unit, and have lubed them according to the books. Everything appears to move freely.
>> 
>> What I'm seeing when 'hand powering' the typing unit is a series of spaces until it reaches the end of the platen. Is this normal or should the printing mechanism 'jump' in place? I can force a Car Ret by faking out the codebars during rotation.
>> 
>> When the TU is on the KB/base and I power the motor directly, I get the same result (obviously) along with a jumping 'Keyboard Lock' key. 
>> 
>> Is this normal? Anything obvious I should check?
>> 
>> Thanks,
>> Cory Heisterkamp
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