ASR 33 buzzing

drlegendre . drlegendre at
Fri Oct 14 23:21:06 CDT 2016


Sounds like you're on the path to ultimate success - keep at it, and you'll
get to the heart of it.

There's no better guarantee for success than simply refusing (aka failing)
to give up at any time. Take needed breaks, review docs, listen to
suggestions - but never, ever quit until it's licked.

It's only then that you lose, and that's what separates the accomplished
from the pikers! =)

On Fri, Oct 14, 2016 at 10:25 PM, Brad H <
vintagecomputer at> wrote:

> It's not a matter of bothering.. it's a matter of not knowing what I'm
> looking at yet.  I was checking what I thought were all the clutches in the
> back.. they all seemed good.
> I guess changing caps would be a smart idea right off given they look
> original.  I'll check the diodes too.  I am just nosing around.. given it
> wasnt shorting out when it left.. I'm concerned something might have
> shifted in transit.
> Sent from my Samsung device
> -------- Original message --------
> From: dwight <dkelvey at>
> Date: 2016-10-14  7:36 PM  (GMT-08:00)
> To: "General Discussion: On-Topic and Off-Topic Posts" <
> cctalk at>
> Subject: Re: ASR 33 buzzing
> I see you didn't bother to check the clutches. You'd have found that the
> clutch that reset the keyboard could be released.
> The buzzing may also be related to your fuse blowing the supply
> that feeds the receiving coil may have a shorted diode or capacitor.
> That would both explain the fuse and the buzz.
> Dwight
> ________________________________
> From: cctalk <cctalk-bounces at> on behalf of Brad H <
> vintagecomputer at>
> Sent: Friday, October 14, 2016 6:30:57 PM
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> Subject: RE: ASR 33 buzzing
> Got a little further.  The keyboard was definitely jammed.  I pulled the
> carriage over to the right and noted there's a bar on the left side that a
> piece of metal attached to the carriage belt hits, I assume triggering
> something.  Doesn't work.. the bar is stuck.  At any rate, I put the metal
> piece over it and the carriage returned on its own (spring action).  I then
> wound the motor some more and got a bell sound.  After that, the keys
> started to work properly -- I can see the little arms (code bars?) changing
> as each key is pressed.
> Thought maybe if the keyboard was jammed that might short the motor.. but
> still blows out fuses.
> AFAIK the unit was working before it was shipped, sort of.  The seller
> mentioned powering it up and doing a carriage return successfully before
> shipping.  I'm inclined to think something happened during shipping.

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