ASR 33 buzzing

Fri Oct 14 00:30:30 CDT 2016

did  you  get the  links  we  sent you  over  on the greenkeys  list  for  
sources on 33 manuals and paperwork  we  sent you?  We did not get an 
acknowledgment.  thanks   Ed#  _www.smecc.org_ (  
In a message dated 10/13/2016 4:37:20 P.M. US Mountain Standard Time,  
vintagecomputer at writes:

The  buzzing definitely seems to be coming from the motor.  I put a  plastic
tool to the casing and could feel it vibrating. However, I can turn  it by
hand (clockwise) and see all the gears and striker mechanisms  working.

It did manage to work briefly yesterday.. it did kind of a  'reset'.  But
yeah.. not today.

-----Original  Message-----
From: cctalk [mailto:cctalk-bounces at] On Behalf  Of Paul 
Sent: Thursday, October 13, 2016 4:28 PM
To: General  Discussion: On-Topic and Off-Topic Posts  
<cctalk at>
Subject: Re: ASR 33 buzzing

>  On Oct 13, 2016, at 7:14 PM, Brad H  
<vintagecomputer at>
> Posting  around hoping somebody might be able to point me in the right 
>  direction.  I tried greenkeys but no response.
> I have an ASR 33 I got.  When I plug it in on Line mode there is  a 
> clicking in the power supply area and nothing else.  If I put  it to 
> Off or Local, there is a loud buzzing sound and eventually a 2A  fuse 
> on the back left side of the machine blows.  It's like  something's 
> stuck but the noise is kind of hard to pin down.   Wondering if there's 
> any Model 33 experienced guys out there.  :)

Given the blown fuse I'd suspect a stuck mechanism, so the  motor is stalled
and you're getting overcurrent.  Try turning the  motor by hand to confirm.


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