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by jms2
Sun Nov 12, 2017 11:00 pm
Forum: software: classic games
Topic: Legacy of the BBC Micro User magazine / Database Publications Ltd
Replies: 12
Views: 602

Re: Legacy of the BBC Micro User magazine / Database Publications Ltd

I'm not sure I understand the question. The Micro User became Acorn Computing and eventually merged with Acorn User. This went on to become Qercus (I think).
by jms2
Sat Nov 11, 2017 8:04 am
Forum: hardware
Topic: A3000 lost Hard Disk, a noob's story
Replies: 22
Views: 325

Re: A3000 lost Hard Disk, a noob's story

=D>
by jms2
Fri Nov 10, 2017 6:21 pm
Forum: hardware
Topic: A3000 lost Hard Disk, a noob's story
Replies: 22
Views: 325

Re: A3000 lost Hard Disk, a noob's story

I’m worried about the battery. What does *status say now? If it has changed, your battery is dead. The battery is soldered to the pub, so if it is leaking it could destroy the machine.
by jms2
Fri Nov 10, 2017 5:09 pm
Forum: hardware
Topic: A3000 lost Hard Disk, a noob's story
Replies: 22
Views: 325

Re: A3000 lost Hard Disk, a noob's story

Jon is right - Harddiscs is the number of ST506 drives in the machine, and so should be zero.

However there is another problem which is that the number of IDEFSdiscs is showing as zero after *status, but you set it to one earlier. does your machine have a new battery in it ?
by jms2
Fri Nov 10, 2017 8:00 am
Forum: hardware
Topic: A3000 lost Hard Disk, a noob's story
Replies: 22
Views: 325

Re: A3000 lost Hard Disk, a noob's story

Nice one! That is what I was trying to remember.

This should make the hard disc work. However, whether the SD card works or not will depend on whether it was formatted correctly using the HCCS utility.
by jms2
Fri Nov 10, 2017 6:52 am
Forum: hardware
Topic: A3000 lost Hard Disk, a noob's story
Replies: 22
Views: 325

Re: A3000 lost Hard Disk, a noob's story

Здравствуйте kppot, I have got the same system as you (with same HCCS podule) so hopefully I can help you! I don't think you have broken anything. So.. did the machine have a traditional hard disc when you got it? Did that work? If so, we should try to get that working first. *Configure filesystem i...
by jms2
Thu Nov 09, 2017 10:10 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

vanekp wrote:But in the 1st post there is a pdf file http://stardot.org.uk/forums/download/file.php?id=26390 which if you download it you will see there is a schematic for the ram board :wink:


Yes, that's the one I've been trying to understand! It's interesting...
by jms2
Thu Nov 09, 2017 7:19 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Thanks very much! :D I didn't encounter the same bizarre solder problems as lazarusr found, but some of the joints were certainly tricky. I can only describe the solder as "bubbling", ie when melted it kind of boiled, with little bubbles erupting from the surface (usually at a single consi...
by jms2
Thu Nov 09, 2017 8:08 am
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

I've reflowed all the joints on the card, and now it works! :D :D
by jms2
Thu Nov 09, 2017 6:25 am
Forum: software: classic games
Topic: Repton Infinity High Score Anagrams
Replies: 21
Views: 2076

Re: Repton Infinity High Score Anagrams

First line is Tactic Rules OK!
by jms2
Wed Nov 08, 2017 7:55 am
Forum: hardware
Topic: Keyboard
Replies: 2
Views: 128

Re: Keyboard

Good question. :D You are not doing anything wrong, but you just need to understand about Teletext mode. When the machine boots it will by default be in MODE 7, which is the Teletext mode. In this mode the keys don't necessarily produce the characters written on them. However if you choose any other...
by jms2
Sun Nov 05, 2017 11:28 am
Forum: off-topic
Topic: Data Serve Retro
Replies: 5
Views: 211

Re: Data Serve Retro

Seconded. They're good.
by jms2
Sun Nov 05, 2017 10:09 am
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

I've now re-tested the BBC without the ram card but with the rom board only. It works fine. I've also checked out the cable and there are no problems with that either. So the issue must be with either the ram card PCB or the chips on it (excluding the 6502). As lazarusr found, the soldering isn't gr...
by jms2
Sat Nov 04, 2017 8:12 am
Forum: software: other
Topic: Double carriage return?
Replies: 16
Views: 450

Re: Double carriage return?

...and in Basic IV and later, there is also the bar character which I don't seem to be able to type on this tablet, which sends several zeroes. I can't remember how many, is it 8?
by jms2
Mon Oct 30, 2017 7:18 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Thanks for the offer! :D I may take you up on that, but I'll test my cable first - I'm fairly hopeful it should be ok. Dry joints on the board are at least as likely I reckon.
by jms2
Sun Oct 29, 2017 10:14 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Nope! :wink: I need to do that.
by jms2
Sun Oct 29, 2017 8:53 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

The two cards do work together - the machine came to me in a working state, in this configuration. It only started to become unreliable and eventually to stop working altogether after several years of (not very intensive) use. During my recent attempts to fix it, I found it works fine with just the ...
by jms2
Sun Oct 29, 2017 8:01 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Here's my solution. I wanted to use three adhesive feet to stack the ram card on top of the rom board. However, you need a gap of at least 25mm between the boards and there don't seem to be any adhesive feet that are as long as that. So what I've done is create some push-fit edge supports using a sp...
by jms2
Tue Oct 24, 2017 4:59 pm
Forum: general
Topic: New Interview up on AET
Replies: 10
Views: 251

Re: New Interview up on AET

Smashing interview Stuart (and Dave) =D>
by jms2
Sat Oct 21, 2017 10:35 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

I have come up with a plan... I think using double sided sticky pads it will be possible to stick the ram card upside down on top of the rom board.
by jms2
Sat Oct 21, 2017 4:41 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Good idea, but unfortunately the rom card does not have any interaction with the 6502 socket. it plugs into the OS rom socket and the serial chip socket IIRC.
by jms2
Sat Oct 21, 2017 1:07 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Unfortunately mounting it directly into the 6502 socket using some kind of extender is not an option. The 12 rom board entirely masks the 6502 socket. And there is also a 1770 interface nearby as well, so it's like threading a needle.
by jms2
Sat Oct 21, 2017 7:20 am
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Crikey, even 17cm is radically shorter than the cable in mine. Bearing in mind that: 1. Mine has been unreliable (probably due to poor connections, but you never know). 2. Problems with the PiTube have been reported with a longer cable on the ram card. ... I'll see if I can shorten mine from its cur...
by jms2
Fri Oct 20, 2017 10:18 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Ha ha, yes OK I'm not really making myself clear I admit! What I was getting at is trying to understand what cable lengths are in use, and what you consider to be too long, because I was originally contemplating fitting a slightly longer cable. In reality I'll probably go down the "short as pos...
by jms2
Fri Oct 20, 2017 6:01 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

... and how long would that be? :lol:
by jms2
Fri Oct 20, 2017 2:45 pm
Forum: hardware
Topic: I got my new beeb!
Replies: 7
Views: 216

Re: I got my new beeb!

Congratulations! :D Looks like a very nice condition Issue 7 BBC B in "plain vanilla" configuration, ie no disc or econet interfaces. If you plan to use the MMB system you don't need either of those anyway. Having a basic machine is helpful in terms of game compatibility. You probably shou...
by jms2
Thu Oct 19, 2017 9:49 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

How long do you plan to make your cable?
by jms2
Sun Oct 15, 2017 9:09 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

Just measured the old ribbon cable. It was 25.5cm long before I chopped the dodgy bit off the end. Now its 24cm. This is long enough to be able to assemble the machine (I think) but it's not ideal for getting the lid on and off. I guess that's not really a show stopper though.
by jms2
Sun Oct 15, 2017 6:32 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

There's a massive Watford 12-rom board in there, plus a 1770 daughter board. Sounds like I should be abandoning hopes of making it easy to get the lid off!
by jms2
Sun Oct 15, 2017 5:46 pm
Forum: hardware
Topic: WE 32K RAM Card Repair
Replies: 70
Views: 2112

Re: WE 32K RAM Card Repair

I'm underway with repairing my "32k Ram card" BBC now. I'd just got the machine working fine without the ram card, but then some magic smoke came out! This was a surprise because I'd already recapped the PSU (back in about 2001 I think). I reckon that at the time I only replaced the affect...

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