[GreenKeys] Teletype 33ASR

Tue, 2 Jul 2002 21:46:07 -0700

Thanks for the compliments Gil.  I always try to help when I can. 
Perhaps after I retire I can do more.
Jack Hart also has some experience with 32s and 33s.  They are, shall 
we say, somewhat frustrating to work on! ;-)

Thank you for your support,
Don

>Hi Don:
>
>It's great to see this kind of information, from someone who knows the
>machines well.  One of those must-file emails, that will help folks get
>their machines running.
>
>If you ever get bored, write some more stuff like this down and post it.
>On any model machine.  A lot of people will appreciate it.
>
>thanks,
>
>gil
>
>
>At 08:26 PM 7/2/02 -0700, you wrote:
>>The problem with 33s is that the reader, the keyboard, and the
>>answerback drum contacts are all in parallel.  They all have to be
>>positioned properly or all you will get is garble.  The distributor
>>at the right rear of the machine is responsible for serializing the
>>parallel signals for the selector magnet driver circuitry..  Almost
>>all SMD cards show some burning on the PC board.  The ceramic
>>resister gets quite warm so do not worry and do not touch it.
>>
>>1. Make sure the distributor clutch is tripped every time you hit a key.
>>
>>2. Try holding down the tape out contact on the reader with the
>>reader control lever in the run position... then cover each of the
>>reading fingers to see if the holes in the tape follow what you are
>>causing to be spacing.
>>
>>3. The brush holder on the distributor should always stop with the
>>small pointer at the top right where a trace leaves that segment.
>>There is also a small "tit" on the pc board there.
>>
>>4. Make sure you have an adjustment manual.  I can send you one if you
>need it.
>>
>>5. Make sure the "H" lever is adjusted properly.  It is the part that
>>looks like an "X" with a slot in the middle.  It connects the
>>keyboard reset to the distributor clutch assembly.  It has to be just
>>right or the machine will not print right.
>>
>>6.  Look for rust marks and oil anything that looks rusty (except the
>>selector mechanism.
>>
>>7. Make sure you have a good stiff rubber print head on the print
>>hammer assembly.  Most of them turn into mush after a few years.  I
>>am looking into having them reproduced..
>>
>>8. If all else fails there may be a former 33/32 repairman in your
>>area that can help.  Where are you located?
>>
>>Regards,
>>Don
>>
>  >Curator - NADCOMM

-- 
--------------------------------------------------------
Don Robert House
URL: http://www.nadcomm.org
email: [email protected]
email: [email protected]
email: [email protected]
email: [email protected]
email: [email protected]