Search found 2161 matches

by DutchAcorn
Sun Mar 29, 2020 7:43 pm
Forum: other vintage computer hardware, software and games
Topic: Epson HX20 - first laptop !EVER! 1981+
Replies: 62
Views: 4450

Re: Epson HX20 - first laptop !EVER! 1981+

... But for immed purposes, yes, line 570 should be changed to 570 IF BY=28 THEN 590 Also, once I'd changed this, the game went further, but then I got a SN (syntax) error. When I checked the line, I found the statement !SUB xxx. This is a damaged BASIC token, prob introduced by the HXTAPE code. .....
by DutchAcorn
Tue Mar 24, 2020 6:36 am
Forum: hardware
Topic: BBC B long beep and (mostly) unresponsive keyboard
Replies: 7
Views: 270

Re: BBC B long beep and (mostly) unresponsive keyboard

As Kazzy suggested it is most likely related to the system VIA and related circuits. You will see similar symptoms if you completely remove IC3. Tricky’s test rom does more than test memory, it also checks the system VIA by controlling the caps and shift lock leds and producing sound. Both should oc...
by DutchAcorn
Mon Mar 23, 2020 7:19 pm
Forum: introduce yourself
Topic: A blast from the past
Replies: 12
Views: 327

Re: A blast from the past

Wow, Angus from Elite-A! Welcome to stardot! Elite-A has impressed me enormously; it had always seemed to me that Braben and Bell squeezed the absolute max out of the Beeb's possibilities. And then you came along and added impressive features to it as if you had resources to spare. :shock: So what a...
by DutchAcorn
Sun Mar 22, 2020 8:35 pm
Forum: other vintage computer hardware, software and games
Topic: Epson HX20 - first laptop !EVER! 1981+
Replies: 62
Views: 4450

Re: Epson HX20 - first laptop !EVER! 1981+

Thanks for that, Col. Somehow my HX-20 does not seem to read ROM4. If I put the skiwriter rom in socket 12E it does show up in the menu.

One detail; it has a 16K internal expansion.
by DutchAcorn
Sun Mar 22, 2020 2:34 pm
Forum: other vintage computer hardware, software and games
Topic: Epson HX20 - first laptop !EVER! 1981+
Replies: 62
Views: 4450

Re: Epson HX20 - first laptop !EVER! 1981+

/\ works in my two, now that they are back to 'original' You may have to do the Date set thing first, then have to go into Basic first, then into SkyWriter. It does ask to go into Basic first if you don't See pics here near start of this thread, to show what you should get : https://stardot.org.uk/...
by DutchAcorn
Sun Mar 22, 2020 10:43 am
Forum: other vintage computer hardware, software and games
Topic: Epson HX20 - first laptop !EVER! 1981+
Replies: 62
Views: 4450

Re: Epson HX20 - first laptop !EVER! 1981+

Did you get ther SkiWriter system sorted out - I downloaded the ROM files you'd posted, but couldn't see the binary, maybe I just missed it? Here's the SkiWriter ROM (yes, it's in the MAME torrents). I see you're also discussing it over at VCF. Anything you have that is not readily available elsewh...
by DutchAcorn
Sat Mar 21, 2020 2:23 pm
Forum: general
Topic: Today I received.....
Replies: 5703
Views: 490899

Re: Today I received.....

An Epson HX-20. I blame this forum for this, I never heard of this device before it was discussed here. :oops: :lol:

Nifty little machine though. And it seems to work ok!
45FB6D04-B838-4302-822C-6C67956D41D0.jpeg
by DutchAcorn
Sat Mar 21, 2020 10:49 am
Forum: hardware
Topic: BBC Master Compact - blank screen and beep
Replies: 18
Views: 484

Re: BBC Master Compact - blank screen and beep

Knowing the possible wreckage caused by the high voltage psu I’d suggest to start with the basics; check for 5V supply on the IC’s on the main board and check if the CPU gets a clock signal (does it have a pulse?).
by DutchAcorn
Tue Mar 17, 2020 8:02 pm
Forum: acorn atom and system
Topic: Atom Disk Pack
Replies: 3
Views: 160

Re: Atom Disk Pack

Many thanks to Paul v/d S for sending me 5.25" floppy's for the atom disk pack. I almost had this drive send to the bin for parts. Here are some pic's of the inside. After connecting the drive to the atom i got this :D . Here an overview of my workstation :D :D :D . my workstation.jpg Jan Great to ...
by DutchAcorn
Sun Mar 08, 2020 11:09 am
Forum: hardware
Topic: Acorn Risc PC 610
Replies: 6
Views: 396

Re: Acorn Risc PC 610

... The power light is on, the cdrom flashes once, floppy light blinks four times and repeats that a few times. The display is initially faint grey, but after the HDD makes a few noises, it turns blank. No message on monitor. The keyboard leds flash once after about 15 seconds then the num lock rem...
by DutchAcorn
Sat Mar 07, 2020 8:28 pm
Forum: introduce yourself
Topic: And yet another member from the Netherlands
Replies: 20
Views: 489

Re: And yet another member from the Netherlands

Welcome to Stardot! I can help you with a few floppies if you like.
by DutchAcorn
Sat Mar 07, 2020 8:11 am
Forum: hardware
Topic: BBC Master Compact - blank screen and beep
Replies: 18
Views: 484

Re: BBC Master Compact - blank screen and beep

What test equipment do you have? Mutimeter, Logic Probe, Logic Analyser, scope? If you say you may have used an unsuitable PSU before. Do you remember if it was wrong polarity or voltage?

Tricky's test rom may help in diagnosing 6522 and memory issues, have a read here.
by DutchAcorn
Thu Feb 27, 2020 7:20 pm
Forum: introduce yourself
Topic: Another member from the Netherlands
Replies: 29
Views: 709

Re: Another member from the Netherlands

Welcome to Stardot! Interesting collection! :D

Do shout out if you need help and/or components.
by DutchAcorn
Wed Feb 26, 2020 7:35 pm
Forum: software
Topic: RISC iX - Cloned!
Replies: 187
Views: 24875

Re: RISC iX - Cloned!

The file you get if you decompress the zip file is a SCSI disc image. From your post it is not clear if you used the scsi writer program to write the image to the SCSI2SD connected to your SCSI card? :? Writing the image file to an IDE disc is not enough, unless you subsequently use a scsi writer pr...
by DutchAcorn
Wed Feb 19, 2020 8:12 pm
Forum: hardware
Topic: BBC B Single Beep with Corrupt Screen
Replies: 16
Views: 797

Re: BBC B Single Beep with Corrupt Screen

Can you change mode to mode 0?

Do the dashes only appear after you type a line or are there dashes on other parts of the screen (too)?
by DutchAcorn
Fri Feb 14, 2020 7:30 pm
Forum: acorn atom and system
Topic: Two dead Atoms! Life Support possible?
Replies: 13
Views: 542

Re: Two dead Atoms! Life Support possible?

Can you post pictures of the boards? Do the Atoms both still have their speakers?

The RF signal can be a pain to find. You can do a simple video mod to change the output of the RF socket to composite video. See here: https://stardot.org.uk/forums/viewtopi ... 72#p232713
by DutchAcorn
Mon Feb 03, 2020 1:56 pm
Forum: hardware
Topic: Acorn A310 help.
Replies: 17
Views: 654

Re: Acorn A310 help.

nzjavert wrote:
Mon Feb 03, 2020 1:59 am
the caps lock and num lock lights turn on and off when pressed.
Are you saying the caps lock can be toggled using the caps lock key?

Is there a cooling fan installed and does it run?

What happens if you wait a few seconds after switching on, then press F12 and then press Copy (or ctrl-g)?
by DutchAcorn
Sat Feb 01, 2020 10:16 pm
Forum: acorn atom and system
Topic: New Atom owner
Replies: 10
Views: 481

Re: New Atom owner

crivett95 wrote:
Sat Feb 01, 2020 7:37 pm

Does the Tape I/O port use the same cables as a BBC Micro?
Yes.
crivett95 wrote: Is there an easy way that I could test all the RAM is working properly in the machine? Currently I don't have any software for it at all
It takes some typing but have a look at this post.
by DutchAcorn
Thu Jan 30, 2020 9:38 pm
Forum: hardware
Topic: A5000 woes
Replies: 53
Views: 3496

Re: A5000 woes

Just to be sure; is LK24 set correctly for a 2MB configuration (2-3)?
by DutchAcorn
Fri Jan 24, 2020 8:00 pm
Forum: introduce yourself
Topic: Greetingsto all.
Replies: 10
Views: 391

Re: Greetingsto all.

Welcome and good luck! Shout out if you need help.
by DutchAcorn
Fri Jan 10, 2020 10:35 pm
Forum: software: other
Topic: BEEB.MMB with Panos and CP/M disc images
Replies: 2
Views: 420

Re: BEEB.MMB with Panos and CP/M disc images

I don't know where it was posted, but I have a version that came from Hoglet. Temporarily downloadable from here.
by DutchAcorn
Fri Dec 06, 2019 5:03 am
Forum: hardware
Topic: Elite in ROM??
Replies: 12
Views: 862

Re: Elite in ROM??

I think the sideways RAM version of Elite for the Model B loads once then doesn't access the disc again. Could be wrong. Not quite what you are asking but quicker than the original disc version. I've been searching the interwebs for a B+ 64kb Sideways Ram/Rom Module but have only found some for the...
by DutchAcorn
Thu Dec 05, 2019 4:44 am
Forum: introduce yourself
Topic: New meber from the Netherlands.
Replies: 17
Views: 655

Re: New meber from the Netherlands.

Welcome to Stardot! :D About the drives: - You have a gotek working on the interface port of the BBC so the Beeb hardware should be fine - It is a dual drive (right?), it is unlikely that both drives developed the exact same fault at the same time. So if you have eliminated faulty floppies as a caus...
by DutchAcorn
Sun Nov 24, 2019 4:11 pm
Forum: hardware
Topic: Model B+
Replies: 20
Views: 800

Re: Model B+

Is the B+ actually faulty? If so, what are the symptoms?


In the photo the OS/BASIC chip is in the wrong socket, it should be in IC71 (it is now in IC68).
by DutchAcorn
Sat Oct 26, 2019 6:04 am
Forum: hardware
Topic: PSU for Atom
Replies: 16
Views: 620

Re: PSU for Atom

On a side note, you won't get a colour picture using the composite output. You'll have to create a cable using the outputs from the colour board directly or use UHF (given the needed modifications are done, see attached guide).
by DutchAcorn
Thu Oct 24, 2019 7:05 pm
Forum: hardware
Topic: BBC B Upper memory fault
Replies: 15
Views: 555

Re: BBC B Upper memory fault

Good to hear! Good luck with the permanent fix!
by DutchAcorn
Thu Oct 24, 2019 6:41 pm
Forum: hardware
Topic: BBC B Upper memory fault
Replies: 15
Views: 555

Re: BBC B Upper memory fault

e668ecp wrote:
Thu Oct 24, 2019 6:12 pm
Ran the program and it came up with the number 16 which implies IC65

IMG_20191024_191558238.jpg

By the way the screen flickers as if the numbers are going on / off
Looking at the screen picture it is indeed 16 / D4 being pulled high, but it is more likely to be caused by a faulty IC 57 (CAS1).
by DutchAcorn
Thu Oct 24, 2019 6:29 pm
Forum: hardware
Topic: BBC B Upper memory fault
Replies: 15
Views: 555

Re: BBC B Upper memory fault

e668ecp wrote:
Thu Oct 24, 2019 6:12 pm
Ran the program and it came up with the number 16 which implies IC65

Took the motherboard out of the case, reconnected the PSU and now the damn thing wont come on :(

I just get a long beep
Do you now get a long beep with all settings of S25 (north / south / removed)?
by DutchAcorn
Thu Oct 24, 2019 4:13 pm
Forum: hardware
Topic: BBC B Upper memory fault
Replies: 15
Views: 555

Re: BBC B Upper memory fault

Can you post a picture of the start-up screen in 32K mode? That may be enough to diagnose which memory chip is faulty.