Search found 57 matches

by Nutter
Sun Aug 04, 2019 12:27 pm
Forum: software
Topic: How do I reset an A3000 - not using the button
Replies: 6
Views: 468

Re: How do I reset an A3000 - not using the button

Thanks Jon that's great information. I'll have a look for that version.
by Nutter
Sat Jul 27, 2019 11:32 pm
Forum: software
Topic: How do I reset an A3000 - not using the button
Replies: 6
Views: 468

Re: How do I reset an A3000 - not using the button

Jon, I literally copied the contents of both floppies to the IDE podule device into directory named Pandora. Then double-clicked the main Pandora icon. Nothing happens except the drives disappear. I know this method may not work for every title... I tried also with the original floppy in the drive b...
by Nutter
Sat Jul 27, 2019 10:16 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: Fixed: A3000 black screen after power on.

Thanks for your input Mark. I don't think there is an issue running it without RAS or CAS simply because that is the state I found my A3000 in and that was due to the ABRT signal shutting off the four CAS outputs from MEMC, by design. There might well be an issue if the system clock itself fails but...
by Nutter
Sat Jul 27, 2019 5:03 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: Fixed: A3000 black screen after power on.

So what's the conclusion regarding this? Is it dangerous to run the system without a clock or RAS/CAS? My gut feeling tells me it's not but is there something internal to the chips that may be damaged?? I don't honestly know.
by Nutter
Fri Jul 26, 2019 11:34 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: Fixed: A3000 black screen after power on.

Mark I thought exactly the same thing but had to take the manual as being the "authority". It's funny you should mention that :lol: As I know very little about Acorn computers I had to accept that what was stated in the manual was correct. It begs the question, why would they state that a system clo...
by Nutter
Fri Jul 26, 2019 11:13 pm
Forum: software
Topic: How do I reset an A3000 - not using the button
Replies: 6
Views: 468

Re: How do I reset an A3000 - not using the button

You mean CTRL and the reset button?
by Nutter
Fri Jul 26, 2019 10:38 pm
Forum: software
Topic: How do I reset an A3000 - not using the button
Replies: 6
Views: 468

How do I reset an A3000 - not using the button

Disclaimer: I know very little about Acorn systems and software. When I try to launch a game etc and it doesn't start because of an error, sometimes all my IDE Discs disappear from the desktop bar. Is there a way to reset or restore these drives without powering off and on? Sometimes even the reset ...
by Nutter
Fri Jul 26, 2019 9:57 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: Fixed: A3000 black screen after power on.

Thanks Kazzie.

This was such an easy "mistake" to make and if you ask me, it was also a terrible PCB design. But sure... that was then and this is now! I'm so glad to have this machine working again.
by Nutter
Fri Jul 26, 2019 1:24 am
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: Fixed: A3000 black screen after power on.

I really should have paid more attention to IanS's warning posted here in the For Sale thread.
by Nutter
Fri Jul 26, 2019 1:17 am
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: A3000 black screen after power on.

Success! I managed to get this fixed after a bit of research (rtfm) and a bit of probing with the scope. The two issues I was seeing were both related: the power fluctuations and the 4 CAS signals missing. After reading up a bit about the MEMC in VTI ARM databook from the Internet Archive I found th...
by Nutter
Thu Jul 25, 2019 12:12 am
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: A3000 black screen after power on.

Thanks for the reply. No they don't get warm. The voltage starts off at 4.95V then after a few seconds drops off slowly. I'm trying not to keep it switched on too long due to the warning in the manual although the 24Mhz clock is present. I'm a bit more concerned about the missing CAS signals at minu...
by Nutter
Wed Jul 24, 2019 11:43 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: A3000 black screen after power on.

Well I gave in and cleared some space on the desk. I have removed the 4 ROMs temporarily and ordered 4x 27C4001 just in case they're needed. Initial tests show I am missing the CAS signals from MEMC at R129-132. I see there is a warning notice in the manual not to keep power on for longer than a few...
by Nutter
Wed Jul 24, 2019 4:00 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Re: A3000 black screen after power on.

I would have used those ROMs except I have only just sold that unit and it's in the post :(

I might end up just buying a new set of ROMs from somewhere. That appears to be the lazy way out here. Anyone here got a set for sale?
by Nutter
Tue Jul 23, 2019 9:51 pm
Forum: hardware
Topic: Fixed: A3000 black screen after power on.
Replies: 15
Views: 536

Fixed: A3000 black screen after power on.

I have an A3000 which is in generally very good condition. Battery has been replaced and one damaged track has been repaired. Everything else is great shape. It was working fine for many months but when I powered it on just a few nights ago, the only thing I get is a green power LED. No disc LED, no...
by Nutter
Thu Dec 13, 2018 10:44 pm
Forum: wanted
Topic: Wanted: A3010 mains transformer
Replies: 0
Views: 272

Wanted: A3010 mains transformer

If anyone has a scrap A3010, I need a quiet mains transformer. Mine works fine but hums quite a lot; too much for me to use it it regularly.

So if you've got a damaged A3010, gimme a shout please.
by Nutter
Fri Nov 30, 2018 10:45 pm
Forum: for sale / freebies
Topic: For Sale: IDE Podules - Nov 2018
Replies: 16
Views: 1406

Re: For Sale: IDE Podules - Nov 2018

Ian can I have an 8 bit podule for an A3000/A3010? Thanks.
by Nutter
Sun Nov 25, 2018 11:07 pm
Forum: software
Topic: Could someone explain how to use ADFimager?
Replies: 1
Views: 309

Could someone explain how to use ADFimager?

I have a floppy image which is 819.2k (unzipped) in size. I want to write it to a blank floppy. Do I need to get the zip file to my A3000 and use SparkFS ? I'm a bit confused :oops:
by Nutter
Tue Nov 20, 2018 9:57 pm
Forum: software
Topic: Bought Crystal Maze from ebay but Disc 1 faulty
Replies: 3
Views: 477

Bought Crystal Maze from ebay but Disc 1 faulty

As in the title, I bought Crystal Maze on ebay but I find disc 1 (i.e. the second disc as they're numbered from zero!) cannot be read by my A3000 (Disc error 10 at :0/00000000) and my A3010 says it is not formatted. I noticed that all 3 discs had the Write Protect tab in the "enable" position :( so ...
by Nutter
Thu Nov 01, 2018 5:22 pm
Forum: hardware
Topic: A3010 with a noisy transformer.
Replies: 3
Views: 344

Re: A3010 with a noisy transformer.

I'm not sure what you mean by "spacers". Mine has the transformer attached to the mainboard by 2 screws from underneath. They screw into 2 diagonally opposite hex pillars - I suppose you could call them spacers. Wonder would it help trying to brace the other 2 corners of the transformer? Pity it's s...
by Nutter
Wed Oct 31, 2018 10:35 pm
Forum: hardware
Topic: A3010 with a noisy transformer.
Replies: 3
Views: 344

A3010 with a noisy transformer.

I recently bought an A3010. I've had it powered on a few times with the motherboard out of the case and it was pretty much silent. Now that I have it back in the case (both transformer case screws in) it makes an irritating hum. Is this usual for an A3010? I have two A3000s and they're both silent i...
by Nutter
Sat Oct 27, 2018 8:41 pm
Forum: software
Topic: Transferring floppies to HD / IDE device
Replies: 11
Views: 716

Re: Transferring floppies to HD / IDE device

!ADFFS needs 4MB of RAM doesn't it? I've only 2MB unfortunately.

BTW what does Bad Drive mean? I see this when trying to start Ibex the Viking from floppy.
by Nutter
Sat Oct 27, 2018 4:24 pm
Forum: software
Topic: Transferring floppies to HD / IDE device
Replies: 11
Views: 716

Transferring floppies to HD / IDE device

I have a few original floppy games which I'm trying to move to my ZIDEFS device. Some appear to work whereas others either still look for the floppy during boot, or just display an error. As an example, Ibix the Viking just shows "Bad Drive" when I try to open the floppy disk. What does that mean? P...
by Nutter
Mon Oct 22, 2018 8:06 pm
Forum: hardware
Topic: A3010 not booting - memory problem
Replies: 0
Views: 254

A3010 not booting - memory problem

I have an A3010 with both: RAM control line failure and CMOS RAM checksum error There was a very minor battery leak in this machine but only R60 seems to have been affected (although it still seems to be good). I'm assuming the CMOS fault will clear when I can get the machine to boot with DELETE hel...
by Nutter
Tue Oct 16, 2018 9:07 pm
Forum: for sale / freebies
Topic: New A3000 4MB memory
Replies: 40
Views: 3746

Re: New A3000 4MB memory

If it helps others, I will happily reduce my request from 2 boards to one. That way someone from batch 2 might get a board.

If this causes any problems or messes with the figures, then I'm still happy to take 2 boards as originally requested.
by Nutter
Fri Oct 12, 2018 9:05 pm
Forum: software
Topic: Difficulties extracting zip / adf files to DOM
Replies: 18
Views: 800

Re: Difficulties extracting zip / adf files to DOM

Just get a standard one: https://www.ebay.co.uk/itm/232081793751 We can walk you through flashing it and pimping it! You'll also need a USB A-A cable: https://www.ebay.co.uk/itm/261435344163 @danielj for some weird reason that seller doesn't post to N Ireland from China :shock: so I've found one fr...
by Nutter
Fri Oct 12, 2018 8:58 pm
Forum: software
Topic: Difficulties extracting zip / adf files to DOM
Replies: 18
Views: 800

Re: Difficulties extracting zip / adf files to DOM

Some excellent information there hubersn! I am in a queue for an upcoming 4MB board on the buy/sell forum here but I'm not sure how long that will be in production / testing. Using omniflop and a real floppy will probably be my 1st choice. The RPi would be my 2nd choice as I'd have to set it up with...
by Nutter
Thu Oct 11, 2018 9:27 pm
Forum: software
Topic: Difficulties extracting zip / adf files to DOM
Replies: 18
Views: 800

Re: Difficulties extracting zip / adf files to DOM

I think I might well go down that route danielj.

I'll check out ebay etc to see if any for sale. For the time being I'll struggle on... every day's a school day as the man says.
by Nutter
Thu Oct 11, 2018 8:57 pm
Forum: software
Topic: Difficulties extracting zip / adf files to DOM
Replies: 18
Views: 800

Re: Difficulties extracting zip / adf files to DOM

I only downloaded it after searching on these forums for something to extract from adf files. Thought I was doing my bit... searching instead of asking questions all the time :?

So if BeebArc is not suitable, I'll have to get looking for something else.
by Nutter
Thu Oct 11, 2018 8:10 pm
Forum: software
Topic: Difficulties extracting zip / adf files to DOM
Replies: 18
Views: 800

Re: Difficulties extracting zip / adf files to DOM

If all you want to do is play games from adf files, then a gotek may be a better option, as I understand it it will read adf's directly from a USB stick. I had considered a Gotek but I what I should've said was "All I want to do for now is download games and play them". So I'm sure I will need a fl...