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Search took 0.09 seconds. Search: Posts Made By: xArtx
Forum: support.Hardware 26 September 2022, 00:48
Replies: 52
Views: 11,340
Posted By xArtx
Good idea. I thought it would come with EEPROM...

Good idea. I thought it would come with EEPROM programming sw as stock, but who knows.
I remember writing specific GUI-less software just to do this a couple of times!
Forum: Amiga scene 26 September 2022, 00:45
Replies: 29
Views: 5,787
Posted By xArtx
Lol... I grew up in the same town...

Lol... I grew up in the same town (Ipswich/Queensland/Australia).
This was a tiny computer shop. Probably officially licensed to sell Commodore,
and that makes it CBM lol.
Forum: support.Hardware 15 August 2021, 06:41
Replies: 7
Views: 1,316
Posted By xArtx
Pin 63 on A600 Gayle is bit 23 of it’s address...

Pin 63 on A600 Gayle is bit 23 of it’s address bus.
It’s reset signal is on Gayle pin 40, also connected to Agnus pin 16 (if this old copy isn’t a messed up print).

Try this line that is running...
Forum: support.Hardware 15 August 2021, 06:19
Replies: 5
Views: 1,208
Posted By xArtx
Not disagreeing with anything you said, but the...

Not disagreeing with anything you said, but the OP said the mouse consistently works with one port, and not the other.
The only difference between the supply between those two ports IIRC are the two...
Forum: support.Hardware 15 August 2021, 06:10
Replies: 8
Views: 1,535
Posted By xArtx
The floppy drive can be implemented with 4 stock...

The floppy drive can be implemented with 4 stock logic chips to decode addresses (if you call that easy) as done by Bruce Abbott in 1995, but there was no way to decode _INDEX (IIRC don’t quote me)...
Forum: support.Hardware 14 August 2021, 11:13
Replies: 5
Views: 1,208
Posted By xArtx
There’s a current limiting resistor in series...

There’s a current limiting resistor in series with the 5V supply at each of those ports. Can’t find them now because the Amiga schematics site is down... One of those might be duff. As a connected...
Forum: support.Hardware 20 August 2018, 06:46
Replies: 11
Views: 2,512
Posted By xArtx
The DAC and it’s clock is required for CD audio,...

The DAC and it’s clock is required for CD audio, but not for data.
Forum: support.Hardware 20 August 2018, 06:43
Replies: 4
Views: 962
Posted By xArtx
You can find it with a multimeter. Set it to...

You can find it with a multimeter.
Set it to lowest range resistance, and hunt till you find a short of the lowest possible reading.

I’d check across ceramic capacitors because they can crack,...
Forum: support.Hardware 20 August 2018, 06:41
Replies: 1
Views: 842
Posted By xArtx
Not everything. The CPU, Agnus, Gary, RAM, CIAs,...

Not everything. The CPU, Agnus, Gary, RAM, CIAs, Paula, Denise, and Video Hybrid are probably exactly the same.
The CDTV has an extra microcontroller with specialised IO for the VFD display, maybe a...
Forum: Hardware mods 19 August 2018, 06:54
Replies: 51
Views: 6,495
Posted By xArtx
After 18 months spent on mcu software for my own...

After 18 months spent on mcu software for my own hardware design, then sending prototypes off to others to do the PCB CAD,
I can already see that it would have been easier to learn the PCB CAD...
Forum: Hardware mods 19 August 2018, 06:51
Replies: 5
Views: 1,701
Posted By xArtx
You pretty much guessed it. The 12C509 is an 8...

You pretty much guessed it. The 12C509 is an 8 bit micro of the same family that is used on boards today for Amiga/PS2 kb translation. They would now be typically 16F628/a, and have the same...
Forum: Hardware mods 17 August 2018, 15:27
Replies: 11
Views: 4,909
Posted By xArtx
Does that mean you burn 4 new 64kb EEPROMs?

Does that mean you burn 4 new 64kb EEPROMs?
Forum: support.Hardware 17 August 2018, 15:19
Replies: 17
Views: 6,079
Posted By xArtx
Could you not just check the new display...

Could you not just check the new display resolutions with the right Workbench disk?
Forum: support.Hardware 16 August 2018, 22:31
Replies: 1
Views: 579
Posted By xArtx
It’s the Oki MSM6424B RTC that provides 12/24 Hr...

It’s the Oki MSM6424B RTC that provides 12/24 Hr clock modes.
Maybe this is slightly different from RTCs used in other Amigas, or the other ROM software just doesn’t have to write to the VFD display...
Forum: Hardware mods 16 August 2018, 22:17
Replies: 11
Views: 4,909
Posted By xArtx
Why not use a real Kickstart (or at least single...

Why not use a real Kickstart (or at least single EEPROM) ?
https://www.youtube.com/watch?v=W20FK95aMoY
Forum: support.Hardware 22 July 2018, 16:43
Replies: 3
Views: 1,087
Posted By xArtx
I’m thinking it would be easer to make a change...

I’m thinking it would be easer to make a change to that part, than the entire folded tinplate shield.
They’d have known it was capable of doing S-Video for example.
Forum: Hardware mods 19 July 2018, 09:50
Replies: 1
Views: 1,215
Posted By xArtx
Thought I might as well dump an EEPROM from a...

Thought I might as well dump an EEPROM from a board too.
I have no idea what was on this in terms of game titles though (if anything).
Forum: support.WinUAE 19 July 2018, 06:32
Replies: 4
Views: 9,620
Posted By xArtx
Old thread, but I have had to do this for the...

Old thread, but I have had to do this for the last ten or so years.
The first thing is says is I have no ROM file, even though it was selected and the configuration saved last time I used it.
Then...
Forum: Hardware mods 19 July 2018, 06:24
Replies: 1
Views: 1,215
Posted By xArtx
Multi EEPROM Selector for CD32

There ya go:


.. err... wrong section. Should be in one of the sub-sections, and can’t seem to delete. Oh well.
Forum: support.Hardware 03 June 2018, 18:33
Replies: 10
Views: 1,648
Posted By xArtx
It’s a bit risky just trying to jump with solder,...

It’s a bit risky just trying to jump with solder, but stripped mod wire is doable.
But yuk. Maybe a 0 or 1 Ohm resistor would be better.

This is all assuming you’re not going to just buy a...
Forum: support.Hardware 03 June 2018, 18:26
Replies: 10
Views: 1,648
Posted By xArtx
Hang on, don’t do that, it doesn’t work. ...

Hang on, don’t do that, it doesn’t work.

Having technical difficulties. Please bear with me :D
Forum: support.Hardware 03 June 2018, 18:22
Replies: 10
Views: 1,648
Posted By xArtx
I would leave the old one there rather than...

I would leave the old one there rather than removing it and linking the footprint with solder
because it looks like there’s another trace between that. I don’t think it great to blob solder straight...
Forum: support.Hardware 03 June 2018, 18:17
Replies: 10
Views: 1,648
Posted By xArtx
Yes, if it doesn’t measure a fraction of an Ohm...

Yes, if it doesn’t measure a fraction of an Ohm resistance it’s bad.
It should be a DC short circuit, and buzz the continuity test with a meter.
When that’s a thru hole component, it’s literally a...
Forum: support.Hardware 03 June 2018, 14:07
Replies: 15
Views: 3,125
Posted By xArtx
If any of those other keys I mentioned actually...

If any of those other keys I mentioned actually work, then the break in in the membrane in the same row between a working one, and the first non-working one (and not in the ribbon cable part or on...
Forum: support.Hardware 03 June 2018, 14:04
Replies: 15
Views: 3,125
Posted By xArtx
When you look a the big chip on the back of the...

When you look a the big chip on the back of the small keyboard controller PCB, the dot in the corner of the chip is pin 1, and you count pins counter-clockwise from there.
Forum: support.Amiga Forever 03 June 2018, 10:59
Replies: 52
Views: 18,136
Posted By xArtx
Foobarred means that for some years, the Cloanto...

Foobarred means that for some years, the Cloanto ROMs were modified to contain illegal CPU op-codes so that they would work fine with an emulator,
but couldn’t be burned to EPROM to use in a real...
Forum: support.Hardware 03 June 2018, 10:18
Replies: 10
Views: 1,648
Posted By xArtx
discontinuity for pin 2 would have the exact...

discontinuity for pin 2 would have the exact effect you describe. You’d loose horizontal mouse movement, and also the down direction if a joystick was in it.

It depends what part you think E356...
Forum: support.Hardware 31 May 2018, 12:26
Replies: 15
Views: 3,125
Posted By xArtx
Don’t forget the down button, question mark,...

Don’t forget the down button, question mark, period, and comma.
Anyway you have to trace continuity from the keyboard membrane back to pin 32 of the keyboard controller.
Forum: support.Hardware 29 May 2018, 18:53
Replies: 28
Views: 5,304
Posted By xArtx
To change an Amiga properly between PAL & NTSC...

To change an Amiga properly between PAL & NTSC there are two parts to change,
the colorburst crystal, and the master oscillator, as well as setting the jumper to tell Agnus.
It’s the cloudburst...
Forum: support.Hardware 07 May 2018, 14:25
Replies: 10
Views: 1,222
Posted By xArtx
It’s hard to find a good photo to see anything. ...

It’s hard to find a good photo to see anything.
What about if you short it’s supply after it’s been powered off? Does that allow it to be powered on working quicker?
It could be that it needs...
Forum: support.Hardware 08 April 2018, 14:37
Replies: 11
Views: 1,804
Posted By xArtx
If the CD drive acts up, open the lid, place some...

If the CD drive acts up, open the lid, place some white card or paper in front of the lens at 45 degrees facing you so you can see the laser safely. place some card, paper or other object down the...
Forum: support.Hardware 08 April 2018, 14:30
Replies: 17
Views: 3,039
Posted By xArtx
If you can get a single colour analogue video...

If you can get a single colour analogue video signal from either the expansion port or TP9, and connect that, allong with ground to a composite monitor, it will tell you whether or not capacitors...
Forum: support.Hardware 08 April 2018, 14:22
Replies: 10
Views: 1,648
Posted By xArtx
Probably more likely the shift register, but the...

Probably more likely the shift register, but the 4.7k resistor pack R370, that is holding all of the pins high is worth checking first (and the PCB traces to and from it).
Forum: support.Hardware 25 March 2018, 09:18
Replies: 11
Views: 1,730
Posted By xArtx
http://www.amigawiki.de/dnl/schematics/CD32_R3.pdf...

http://www.amigawiki.de/dnl/schematics/CD32_R3.pdf

I have no idea why the reset line would end up pulling the
keyboard clock signal low, or if it’s just a schematic error.
The Ricoh part in the...
Forum: support.Hardware 17 March 2018, 02:00
Replies: 15
Views: 1,859
Posted By xArtx
For all Amigas, composite, RF, and S-Video...

For all Amigas, composite, RF, and S-Video signals
are derived from analogue RGB internally.
If any of those work, so does analogue RGB.
There’s only a few places to look if you don’t see it ...
Forum: support.Hardware 11 March 2018, 06:19
Replies: 9
Views: 2,932
Posted By xArtx
What revision Kickstart do you have? Is it...

What revision Kickstart do you have? Is it original? 3.1 isn’t a Kickstart revision.
The revision is shown in Workbench in the About section, or for original ROMs, it’s printed in the ROM chip...
Forum: support.Hardware 04 March 2018, 22:51
Replies: 31
Views: 3,364
Posted By xArtx
It doesn’t look to me like what WinUAE does, but...

It doesn’t look to me like what WinUAE does, but you can take a look.
The palette may not be the same here, but the data is.
Forum: support.Hardware 04 March 2018, 22:08
Replies: 31
Views: 3,364
Posted By xArtx
You can’t see ID registers without writing some...

You can’t see ID registers without writing some software to address them.
Gayle ID for example is at about 0xDE0xxx IIRC.
I meant looking around the chip physically, or the chip itself.

But...
Forum: support.Hardware 04 March 2018, 08:23
Replies: 31
Views: 3,364
Posted By xArtx
Lisa is a video chip that would seem to relate to...

Lisa is a video chip that would seem to relate to your logo problem.
It looks like one or more bitplanes are missing out of that area, and would have suspected memory there,
but it appears Lisa is...
Forum: support.Hardware 03 March 2018, 18:25
Replies: 31
Views: 3,364
Posted By xArtx
Or ROM, is it a mask ROM, or burned EPROM?

Or ROM, is it a mask ROM, or burned EPROM?
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