In article ,
David Looser wrote:
It seems to me that the posters who need "to try and find a life" are
those who have never yet contributed an OT post, yet seem to feel it
necessary to criticise those who do, such as "sender" and, well,
"atriage".

Blue, sender and atriage are the same person. Or at least posting from the
same computer. Perhaps situated in some care facility.

--
*Learn from your parents' mistakes - use birth control.

Dave Plowman London SW
To e-mail, change noise into sound.

On 29 Jul, wrote:


I went direct to source and have been discussing it with Quad this
morning. I'm told that this is probably the mains transformer and a new
one is on the way. I'll know more once I've had a go at trying that.
T... I'll decide when the transformer and info on how to do the
replacement arrive.

A couple of replacement transformers arrived this morning. Along with some
63mA fuses. The next step is for me to go out and buy some curtain rod as
this is a tool required to take apart the 2805s! 8-

Nice to see that Quad have remained as of old in various ways. The parts
were sent asap, with apologies and helpful advice. And dissassembling /
assembling their equipment tends to be a bit 'around the houses'.

I still remember how funny it seemed at the time how you had to open and
close the box of a 405! The 2805 seems like that on steroids. :-)

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

On 30/07/2011 08:57, Dave Plowman (News) wrote:
In ,
David wrote:
It seems to me that the posters who need "to try and find a life" are
those who have never yet contributed an OT post, yet seem to feel it
necessary to criticise those who do, such as "sender" and, well,
"atriage".

Blue, sender and atriage are the same person.

No **** Sherlock, no flies on you are there? You complete and utter ****wit.


--

On 30/07/2011 08:57, Dave Plowman (News) wrote:

Blue, sender and atriage are the same person.

Dave Dopey******** has learned how to look at headers, it's a giant step forward
for mankind.

--

In article ,
Jim Lesurf wrote:
I went direct to source and have been discussing it with Quad this
morning. I'm told that this is probably the mains transformer and a new
one is on the way. I'll know more once I've had a go at trying that.
T... I'll decide when the transformer and info on how to do the
replacement arrive.

A couple of replacement transformers arrived this morning. Along with
some 63mA fuses.

[snip]

Bit of a worry a mains transformer failing - and the maker putting their
finger on the problem immediately? If it is indeed just a transformer and
not a SMPS?

--
*Real women don't have hot flashes, they have power surges.

Dave Plowman London SW
To e-mail, change noise into sound.

In article , Dave Plowman (News)
wrote:
In article , Jim Lesurf
wrote:
I went direct to source and have been discussing it with Quad this
morning. I'm told that this is probably the mains transformer and a
new one is on the way. I'll know more once I've had a go at trying
that. T... I'll decide when the transformer and info on how to do
the replacement arrive.

A couple of replacement transformers arrived this morning. Along with
some 63mA fuses.

[snip]

Bit of a worry a mains transformer failing - and the maker putting their
finger on the problem immediately? If it is indeed just a transformer
and not a SMPS?

Transformer. The circuitry is essentially the same as the 988/989 series.
And apart from the changes to the limiting arrangements and some tidying
up, much like the 63s. Ye Olde Fashined transformer technology.

AIUI the diagnosis is on the basis that nothing else would blow the fuse so
quickly at switchon. I did wonder if it was some busted diodes or caps in
the voltage multiplier stack. But there are some 220k resistors in series
between them and the transformer. So it isn't obvious how anything at HV
would draw so much primary current. If they'd accidentially fitted much
lower resistor values, maybe. But the speaker worked on the first day
without any sign of problems.

The LV side isn't much more than a 555 and a few odds and sods. To me the
only obvious candidate there would be if the LV winding's rectifier bridge
has failed. Possible, but not something I'd expect unless they had chosen a
piddle-power surge current rated bridge. Or just dead unlucky, (That sounds
like me, though! Sod's Law still rules KO. :-) )

In reality, of course, *anything* may fail without warning. And it may just
be a dead insect that was trapped as a stowaway and has now fallen across
the power wires somewhere inside the box.

However at present I'm just proceeding 'as recommended'. If it turns pun
out *not* to be the transformer and a new one just blows another fuse my
understanding is that they'll send an injuneer with a bigger box of tricks,
or replace if necessary. As things stand I'm happy to see if I can change
the transformer and if that fixes the problem and it then works Ok, fine
with me! If not, there will be more contact, discussion, and acitivity...

FWIW I've now got the magic tool (a length of 6 x 12 mm baton) and poked
out the top plate and can see the next nut to be undone. However I'm going
to have my lunch and maybe water the garden before my next session of
semi-informed breaking and entering...

One of the things I'll ask them next week is wrt the shape of the assembly
that mounts the input connectors, etc. If the top of this had extended
another cm or two towards the speaker frame you could probably have space
to remove the lid of the box *without* all the other furtling around
because at present the brace fouls having to slide the top of the box back.
Maybe Quad just have a fetish about 'ultra long tools'... 8-]

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

In article ,
atriage wrote:
On 30/07/2011 08:57, Dave Plowman (News) wrote:

Blue, sender and atriage are the same person.

Dave Dopey******** has learned how to look at headers, it's a giant step
forward for mankind.

Perhaps you'll also find it a help if you ever join that.

Just deciding whether to publish your name and address too.

--
*Many hamsters only blink one eye at a time *

Dave Plowman London SW
To e-mail, change noise into sound.

"atriage" wrote

Well Mr Luser, you could have contributed to the on-topic part of this
thread started by Jim but of course all you really wanted to do was
respond to the troll. Like recognises like huh. And you Dave ******man,
since you're reading this (aren't you) the same applies.


Ah, but the difference is that I do contribute on-topic posts when I have
something relevant to add, whereas you have never done so under any of your
various aliases. Nor do I deliberately mis-spell peoples' names in a
childish attempt at being insulting.

David.

On 30 Jul, wrote:
In article , Dave Plowman (News)
wrote:
In article , Jim Lesurf

Bit of a worry a mains transformer failing - and the maker putting
their finger on the problem immediately? If it is indeed just a
transformer and not a SMPS?

Transformer.

Finally got around to replacing the transformer this afternoon. The speaker
then powered up OK and would play music. Too soon as yet to know if it will
go wrong again or if my 'repair' has caused some other problem. But so far
so good. One nagging worry is that something else *caused* the transformer
to fail, so may do so again in the - perhaps near - future! Fingers
crossed...

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

On 30/07/2011 12:47, Dave Plowman (News) wrote:

Just deciding whether to publish your name and address too.

drums fingers on table
Well come on the Dopey********, don't be shy, show us all yer new found IT
expertise.

--