1 Nov
2007
1 Nov
'07
8:44 p.m.
Hi,
One of the best designed home micros IMHO (mechanically).
Memotech
Originally a maker of add-ons for the ZX-81, RAM packs etc.
Great machines IMHO.
I was given one recently. The mechancial design in beautiful.... Is the manaul for these machines on the web anywhere?
Dunno about on the web, but I probably still have my copy lying around
somewhere....I don't recall seeing any PAL equations in it though.
TTFN - Pete.
2 Nov
2 Nov
3:20 p.m.
On 2/11/07 01:44, "Ensor" <classiccmp at memory-alpha.org.uk> wrote:
Mine are in easy reach but I didn't get the original message that this is a
reply to, anything I can dig out?
Cheers,
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?
Hi,
One of the best designed home micros IMHO (mechanically).
And MHO too:
http://www.binarydinosaurs.co.uk/Museum/Memotech
Brushed aluminium goodness AND a nice keyboard. Pity 90% of the machines out
there have suffered the same black-screen death. One of these days I'll get
a probe on one to see what's not working.....
Memotech
Originally a maker of add-ons for the ZX-81, RAM packs etc.
Great machines IMHO.
I was given one recently. The mechancial design in beautiful.... Is the manaul
for these machines on the web anywhere?
Dunno about on the web, but I probably still have my copy lying around
somewhere....I don't recall seeing any PAL equations in it though.
9:06 p.m.
Hi,
....Pity 90% of the machines out there have suffered
the same
black-screen death. One of these days I'll get a probe on one
to see what's not working.....
I wonder if that's related to a design problem I recall seeing mentioned in
the service manual? Something to do with the clock generator failing to
start, later machines were redesigned and ISTR the manual detailed how to
modify the original machines.
The problem usually resulted in a "dead" machine with black screen BTW.
Mine are in easy reach but I didn't get the
original message that
this is a reply to, anything I can dig out?
It was an old message from a few weeks ago, I'd missed it thanks to my
wonderfully reliable mail server....
Tony was asking if the Memotech service manual was available on the web
anywhere?
TTFN - Pete.
3 Nov
3 Nov
11:33 a.m.
On 3/11/07 01:06, "Ensor" <classiccmp at memory-alpha.org.uk> wrote:
I've only just been resubbed after many months off-list, I tried to get back
on with my gmail address as I was having problems with the old domain and I
guessed Jay was busy at work so I didn't hassle him about it :)
I wonder if that's related to a design problem I
recall seeing mentioned in
the service manual? Something to do with the clock generator failing to
start, later machines were redesigned and ISTR the manual detailed how to
modify the original machines.
The problem usually resulted in a "dead" machine with black screen BTW.
...which is what all of my dead ones do.
Mine are in
easy reach but I didn't get the original message that
this is a reply to, anything I can dig out?
It was an old message from a few weeks ago, I'd missed it thanks to my
wonderfully reliable mail server.... Tony was asking if the Memotech service manual was
available on the web
anywhere?
Hm, I thought I had a copy but I've just dug out a pair of user manuals
instead....but wait. One is the earlier draft and the other is the later one
that has the PAL Specs written by Geoff Boyd himself as well as full
schematics - this should be the book that has the modifications to rectify
my dead machines? Time for some mid-afternoon reading I think!
cheers
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?
6:40 p.m.
Hm, I thought I had a copy but I've just dug out a
pair of user manuals
instead....but wait. One is the earlier draft and the other is the later one
that has the PAL Specs written by Geoff Boyd himself as well as full
schematics - this should be the book that has the modifications to rectify
my dead machines? Time for some mid-afternoon reading I think!
That sounds remarkably like the manual I rememebr reading 10 years ago...
Any chance of the schematics and PAL equations being copied or scanned
sometime? _One day_ I might get round to looking at this fine machine...
-tony
4 Nov
4 Nov
10:16 a.m.
On 3/11/07 22:40, "Tony Duell" <ard at p850ug1.demon.co.uk> wrote:
If my scanner is playing nice I can get them online, yes. It normally has a
fit when I try to use it, bless. Also, that manual isn't the one that has
the mods to restart the clock so they must only be in the service manual?
They ARE lovely machines. One of these days I'll also find out why my FDX
subsystems aren't well too - I have 3 and they're all dead.....
cheers
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?
Hm, I thought
I had a copy but I've just dug out a pair of user manuals
instead....but wait. One is the earlier draft and the other is the later one
that has the PAL Specs written by Geoff Boyd himself as well as full
schematics - this should be the book that has the modifications to rectify
my dead machines? Time for some mid-afternoon reading I think!
That sounds remarkably like the manual I rememebr reading 10 years ago...
Any chance of the schematics and PAL equations being copied or scanned
sometime? _One day_ I might get round to looking at this fine machine...
2 Nov
2 Nov
7:17 p.m.
[Memotech MTX500 manual]
Dunno about on the web, but I probably still have my
copy lying around
somewhere....I don't recall seeing any PAL equations in it though.
Hmmm.. I remmeber seeing it about 10 years ago (and it was old then, of
course). I don't recall if it was the a Technical manual, or just the
normal user manual, but I strongly suspect the latter.
Anyway, a friend had it, and showed me the schematics in the back. I
noticed the 14L4 (I think) and jokingly said 'OK, what about the PAL
equations'. He flipped back a couple of pages in the manaul amd there
they were.
But being a 14L4 (no feedback terms, so purrely combinatiorial logic), it
would be very easy to reverse-enginner if the equations aren't given.
-tony
6105
days inactive
6107
days old
6 comments
3 participants
participants (3)
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ard＠p850ug1.demon.co.uk -
classiccmp＠memory-alpha.org.uk -
witchy＠binarydinosaurs.co.uk