RE: Re: CM12U

["Harry Hendriks" <hja_hendriks@xxxxxxxxxxx>]

On my TW 523 it was not much bigger originally.
I replaced it by a few bigger capacity ones (in series), with the same
overall Ohm value.
Good luck and again: be careful in soldering and testing.
Harry


>From: "UKHA" <mailinglists@xxxxxxx>
>Reply-To: ukha_d@xxxxxxx
>To: <ukha_d@xxxxxxx>
>Subject: RE: [ukha_d] Re: CM12U
>Date: Mon, 26 Jul 2004 19:52:14 +0100
>
>Harry,
>
>If this resister R25, bigger than the rest of them? I'm guessing it
should
>be if it's 1 watt...
>
>If it is, there's only one of them on my CM11 board, R1 at the
top/right
>corner.
>I'll have a "look" at it this weekend hopefully...
>
>   -----Original Message-----
>   From: Harry Hendriks [mailto:hja_hendriks@xxxxxxx]
>   Sent: 26 July 2004 11:07
>   To: ukha_d@xxxxxxx
>   Subject: RE: [ukha_d] Re: CM12U
>
>
>   Hi,
>   I do not have a CM11 but a TW 523. May be the problem is similar?
>   My experience is that a resister fails (smells and went tot
isolation)
>and
>   so replaced it by one with a much higher heat capacity (=>5* the
specs
>   value) .
>   See  for details of the print lay out (R25) at :
>   http://www.geocities.com/ido_bartana/modifying_power_line_interface.htm
>   Note: the indicated heat capaicty is 1watts for 22V installation, I
now
>use
>   5 watts!!
>   good luck and be careful,
>   harry hendriks
>
>
>   >From: "ianh1000" <ianh1000@xxxxxxx>
>   >Reply-To: ukha_d@xxxxxxx
>   >To: ukha_d@xxxxxxx
>   >Subject: [ukha_d] Re: CM12U
>   >Date: Mon, 26 Jul 2004 08:49:33 -0000
>   >
>   >Ahh, I think my one went pop the same way this weekend, not
opened
>   >it yet but a quick sniff and it smells expensive.
>   >
>   >:-(
>   >
>   >
>   >--- In ukha_d@xxxxxxx, "UKHA"
<mailinglists@v...> wrote:
>   > > Yes, it seems to be the standard failure mode... join the
club.
>   > > I'm on my second, after using the first very reliably for
over two
>   >years,
>   > > and then pop....
>   > >
>   > > I had mine apart too, but apart from the smell, I can't
see
>   >anything that
>   > > looks dead, which is a shame as I'm sure the spare part
would cost
>   >nearer
>   > > 50p than ?50 for a new CM12.
>   > >
>   > > Lee
>   > >   -----Original Message-----
>   > >   From: James Mitchelmore [mailto:james@m...]
>   > >   Sent: 25 July 2004 23:02
>   > >   To: UKHA
>   > >   Subject: [ukha_d] CM12U
>   > >
>   > >
>   > >   I have a CM12U that I haven't used for a long while,
although it
>   >has
>   > >   been powered up for probably at least 6 months.  On
attempting
>   >to fire
>   > >   it via a girder plugin today and having no luck, I
decided to
>   > >   investigate further.  Upon opening the case, I was
greeted by the
>   > >   distinct smell of a failed component and a waxy deposit
on the
>   >inside of
>   > >   the case, a capacitor I presume but can't see any that
look
>   >particularly
>   > >   sick.
>   > >   Has anyone else had one of these fail like this? Is it a
common
>   >fault?
>   > >   Don't particularly want to replace it with another one
only for
>   >it to go
>   > >   the same way.
>   > >   Any suggestions?
>   > >
>   > >   Regards
>   > >
>   > >   James
>   > >
>   > >
>   > >   [Non-text portions of this message have been removed]
>   > >
>   > >
>   > >
>   > >
>   > >
>   > >
>   > >
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>   > >
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