14 Oct
2016
14 Oct
'16
12:13 a.m.
" I'm assuming it must be round.. although directly under the fuse is a
little black box connected to it.
I note when I plug it in on Line sometimes there's a single metallic clack
from the PSU area and sometimes it's multiple..lioe
someone's operating a
telegraph."
The start/run caps can be tubular, rectangular or 'bathtub' shaped. Again,
this is just generic advice and I can't say which shape(s) were used by TTY
Corp.
As for the one clack vs. telegraph-like clacks, that sounds an awful lot
like a relay or solenoid that sometimes acts OK, and other times, sits
there fluttering as it lacks sufficient current to pull-in or hold the
relay armature. Bad filter caps in a DC supply (to the solenoid coil..) is
classic for this.
Ever seen a one of the cheap, obnoxious 120 AC buzzers they used in old
stoves and so on, as a "done" signal? They're just an AC relay designed
such that the coil cannot hold the armature between cycles - so it just
buzzes like mad to alert you to the status of yr Pizza rolls. =P
On Fri, Oct 14, 2016 at 1:46 AM, David Collins <davidkcollins2 at gmail.com>
wrote:
You might want to try moving the keyboard forward and
away from the
operating lever that connects to it at the back right corner of the
keyboard. If the keyboard is pushed too far back on that lever it can load
up the mechanism and stall it.
It will need to be re-aligned to get the keyboard working again but that
will need to be done anyway - it's pretty sensitive to movement.
You should be able to turn the mechanism by hand but it also may need to
be loosened up if it hasn't been used for a long time.
The 33 I restored blew fuses initially and I thought it had a bad start
cap. Turns out the start cap had been removed and my unit doesn't seem to
need it. Once I rotated it a few times and put grease here and there it ran
ok.
If you can get it to work by turning it by hand while it's buzzing then a
bad or missing start cap may be your issue.
David Collins
HP Computer Museum
On 14 Oct. 2016, at 4:56 pm, Brad H
<vintagecomputer at bettercomputing.net>
wrote:
I missed those somehow.. thank you. Got a lot to learn with this beast!
Sent from my Samsung device
-------- Original message --------
From: COURYHOUSE at aol.com
Date: 2016-10-13 10:30 PM (GMT-08:00)
To: cctalk at classiccmp.org, vintagecomputer at bettercomputing.net
Subject: Re: ASR 33 buzzing
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 bettercomputing.net 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 classiccmp.org] On Behalf
Of Paul Koning
Sent: Thursday, October 13, 2016 4:28 PM
To: General
Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org Subject: Re:
ASR 33 buzzing
On Oct 13, 2016, at 7:14 PM, Brad H
<vintagecomputer at bettercomputing.net
wrote:
> Posting
around hoping somebody might be able to point me in the right
direction. I tried greenkeys but no
response.
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.
paul
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.
:)