3 Apr
2015
3 Apr
'15
5:38 a.m.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Jules
Richardson
Sent: 03 April 2015 13:15
To: General at classiccmp.org; Discussion at classiccmp.org:On-Topic and Off-
Topic Posts
Subject: Re: RD54 Stopped Spinning
On 04/03/2015 02:58 AM, Robert Jarratt wrote:
> On a side note, I spotted a component which I can't identify, folded
> down above the Z8 and stuck to what looks like an adhesive pad on the
> PCB. The can looks a bit mottled/corroded. On another non-working RD54
> it seems to be marked "12039". I am not sure what this component is,
> although it looks like it could be a capacitor. Anyone know what this
might
be?
It's not a thermal fuse, is it? I have absolutely zero knowledge of the
RD54 - but thermal fuses are often in cylindrical metal cans and do seem
prone
to gaining a mottled appearance over time (although it
doesn't appear to
affect
them electrically)
Not sure how to tell. The component number marked on the board uses the
prefix "Y". So it is unlikely to be a capacitor or a resistor. I measured
its resistance (in circuit) and it is almost 1K ohm, so it seems unlikely to
be a fuse, unless thermal ones have a higher resistance?
Regards
Rob