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Forum: support.Hardware 12 September 2021, 14:16
Replies: 17
Views: 656
Posted By turrican9
You only need the 1MB chip upgrade, for a total...

You only need the 1MB chip upgrade, for a total of 2MB chip RAM. The other one with the Gary adapter is not compatible with the ACA 500 Plus anyway.

You can cut away the battery with some...
Forum: support.Hardware 12 September 2021, 12:41
Replies: 17
Views: 656
Posted By turrican9
If you have 2MB chip it will stay at 2MB chip and...

If you have 2MB chip it will stay at 2MB chip and the ACA 500 Plus will add 512KB of slow RAM at C00000 if you configure it like that. As far as I know it wouldn't matter if you have 512KB/1MB or 2MB...
Forum: support.Hardware 09 September 2021, 18:33
Replies: 17
Views: 656
Posted By turrican9
Yes, if you want to play floppy games you can...

Yes, if you want to play floppy games you can configure an A500 + with kickstart 1.2 or 1.3 via ACA 500 Plus and have 512KB slow RAM added by the ACA 500 Plus aswell. And also run at standard...
Forum: support.Hardware 08 September 2021, 19:44
Replies: 17
Views: 656
Posted By turrican9
Like Jope said, A500 + is best since you can get...

Like Jope said, A500 + is best since you can get 2MB chip. However, Rev 6A A500s have the 8372A Agnus and the ACA500 Plus will give you 1MB chip when having 512KB in the trapdoor on the A500. For...
Forum: Retrogaming General Discussion 06 September 2021, 21:46
Replies: 2
Views: 387
Posted By turrican9
Walker whdload crashing

So both on my ACA 500 + ACA1221 and ACA 500 Plus I get crashes in Walker. I tried with or without speech, decrunched and crunched versions. Tried on A500 Plus with 2MB chip or 1MB chip using the...
Forum: support.Hardware 03 September 2021, 16:42
Replies: 17
Views: 1,164
Posted By turrican9
Another benefit with the ACA 500 Plus is also...

Another benefit with the ACA 500 Plus is also that whdload games will not suffer from slowdowns. Using 020 or anything higher than 68000 CPUs on A500/A600 16 bit bus will cause slowdowns in many...
Forum: support.Hardware 30 August 2021, 20:05
Replies: 3
Views: 459
Posted By turrican9
I found the problem! I started flexing the board...

I found the problem! I started flexing the board by the 555 timer chip and had the same behaviour as when I was flexing by the Denise chip. I was bending transistor Q711 and had the behaviour. Turns...
Forum: support.Hardware 30 August 2021, 17:50
Replies: 3
Views: 459
Posted By turrican9
Thanks. Been probing the reset circuitry and...

Thanks. Been probing the reset circuitry and everything seems fine thus far.

Another thing that happened yesterday is when I didn't have the keyboard plugged in and pressed down on Denise while...
Forum: support.Hardware 29 August 2021, 19:30
Replies: 3
Views: 459
Posted By turrican9
Very strange problem with A500 ++ replica board

So I soldered my 5th A500 ++ replica board. The two last ones, including this one I used the diet agnus adapter to be able to use the Agnus 8372A. All of them has worked flawlessly except this last...
Forum: support.Hardware 13 August 2021, 12:25
Replies: 3
Views: 252
Posted By turrican9
Some very old a500 cases comes without this clip....

Some very old a500 cases comes without this clip. I usually use a flatheaded srewdriver and stick it in from the underside and bend the clip carefully using preassure from the screwdriver while i...
Forum: support.Hardware 11 August 2021, 16:22
Replies: 4
Views: 373
Posted By turrican9
If you have tinned any exposed traces, make sure...

If you have tinned any exposed traces, make sure you didn't accidently create a micro solder bridge between traces or traces and any groundplane. Had that happen to me when repairing a damaged A500 +...
Forum: Retrogaming General Discussion 09 August 2021, 14:15
Replies: 20
Views: 1,697
Posted By turrican9
Very nice work :bowdown Just tested it in WinUAE...

Very nice work :bowdown Just tested it in WinUAE with 1MB chip and kickstart 1.3. Worked perfect. Will test it in one of my kick 1.3 1MB chip A500s aswell. Thanks again :great
Forum: Retrogaming General Discussion 08 August 2021, 14:48
Replies: 20
Views: 1,697
Posted By turrican9
Maybe someone could fix street rod for 1mb chip...

Maybe someone could fix street rod for 1mb chip and upload it to the zone?
Forum: support.Hardware 08 August 2021, 11:53
Replies: 8
Views: 865
Posted By turrican9
I have heard of at least one case where C812...

I have heard of at least one case where C812 (filtering cap for voltage to the ram chips I believe) was faulty and killed RAM chips. Allthough, looking at pictures of Rev. 5 boards C815 is also close...
Forum: Retrogaming General Discussion 07 August 2021, 14:56
Replies: 20
Views: 1,697
Posted By turrican9
Did you try Street Rod? Tested a bit with...

Did you try Street Rod?

Tested a bit with WinUAE 1MB chip and Kick 1.3 and found versions of Ghost'n'goblins ADF working with 1MB chip and no slow ram. Yet to find a version of street rod that...
Forum: support.Hardware 07 August 2021, 08:40
Replies: 12
Views: 989
Posted By turrican9
With regards to converting the replica board to a...

With regards to converting the replica board to a stock A500 with 512 chip/512 slow. Based on pictures I've seen of Rev 8A. A500 boards. Aside from cutting the connection between the two lower pads...
Forum: support.Hardware 06 August 2021, 13:13
Replies: 12
Views: 989
Posted By turrican9
Finally made a working Diet Agnus Adapter with no...

Finally made a working Diet Agnus Adapter with no RAM on it. Really took my time with this one and made sure everything was done properly. Using glasses, magnifying glass and a headlamp. The jumpers...
Forum: Retrogaming General Discussion 06 August 2021, 09:48
Replies: 20
Views: 1,697
Posted By turrican9
I found several ADFs in the zone that were fixed...

I found several ADFs in the zone that were fixed for 1MB chip. Like Beach Volley, Commando and Aaargh!.

Street Rod and Ghost'n'Goblins are two games I know of that looks for slow RAM at C00000....
Forum: Retrogaming General Discussion 05 August 2021, 17:26
Replies: 20
Views: 1,697
Posted By turrican9
List of floppy game that has been fixed to work with 1MB chip instead of slow RAM

So is there any links to game ADFs that required RAM at C00000 (slow RAM) but has been fixed to work with 1MB chip RAM?

I know from some google searches that some games have been updated. So...
Forum: support.Hardware 04 August 2021, 08:31
Replies: 30
Views: 2,245
Posted By turrican9
He probably meant the iGame ui. In the sense...

He probably meant the iGame ui. In the sense higher resolution out in the workbench shows the iGame list in RTG?
Forum: support.Hardware 04 August 2021, 07:46
Replies: 12
Views: 989
Posted By turrican9
yes, because I've seen guides on converting Rev...

yes, because I've seen guides on converting Rev 8a Amiga 500 boards to fully fledged Amiga 500 Plus boards. So I kinda knew about these jumpers.

I would say that 512KB chip/512KB slow and...
Forum: support.Hardware 04 August 2021, 00:14
Replies: 12
Views: 989
Posted By turrican9
What about JP2 and JP7A? As shown in this picture...

What about JP2 and JP7A? As shown in this picture (http://amiga.resource.cx/photos/photo2.pl?id=a500&pg=8&res=hi&lang=en)

This picture is from an 8A board configured from Commodore as a regular...
Forum: support.Hardware 03 August 2021, 21:56
Replies: 12
Views: 989
Posted By turrican9
So you don't think it would be possible to...

So you don't think it would be possible to configure this A500 ++ board as a Rev 8A Amiga 500 with 512KB Chip and 512KB slow RAM from the trapdoor because the Diet Agnus adapter may be missing a few...
Forum: support.Hardware 03 August 2021, 03:20
Replies: 12
Views: 989
Posted By turrican9
But you have tested the diet Agnus adapter with...

But you have tested the diet Agnus adapter with the jumpers set to Amiga RAM and no RAM on the adapter itself? Because the first diet agnus adapter I made was without the RAM on the adapter and the...
Forum: support.Hardware 02 August 2021, 08:49
Replies: 12
Views: 989
Posted By turrican9
Amiga 500 ++ replica + Diet Agnus adapter question

So I soldered up five Amiga 500 ++ replica boards. 3 of them is using Agnus 8375 (2MB chip support)

The two last ones I make using the diet Agnus adapter in order to use Agnus 8372As (1MB chip...
Forum: support.Hardware 23 January 2021, 14:13
Replies: 8
Views: 721
Posted By turrican9
Did you see or smell any leakage? If so, check...

Did you see or smell any leakage? If so, check for corroded traces/vias. On one of my A500 PSUs, the one where a small cap had leaked, the corrosion under it was quite bad and had corroded the via to...
Forum: support.Hardware 20 January 2021, 22:43
Replies: 8
Views: 721
Posted By turrican9
One of my A600 PSUs gave some noise on the...

One of my A600 PSUs gave some noise on the screen. Noticed it in a game. It also had this fishsmell to it. Fishsmell was worse as the PSU heated up. I recapped it, I couldn't see any CAP leakage but...
Forum: support.Hardware 26 December 2020, 22:07
Replies: 11
Views: 881
Posted By turrican9
If you have a soldering iron, please try to...

If you have a soldering iron, please try to reflow all solderjoints on the Keyboard controller chip located on the small cicuit board on the keyboard itself. You need to separate the keyboard...
Forum: support.Hardware 21 December 2020, 18:36
Replies: 1
Views: 502
Posted By turrican9
I found the problem! The grounding pin on U891...

I found the problem! The grounding pin on U891 was not making proper contact with the pad because of the corrosion. I was probing and had huge resistance from pin to groundplane. The computer booted...
Forum: support.Hardware 21 December 2020, 15:06
Replies: 1
Views: 502
Posted By turrican9
Amiga 4000D with black screen

So I am looking at a dead A4000D.

Owner said it worked the last time he tried it back in 2004.

Comes up with a video signal with blank screen. No disk or floppy activity. HDs will power up. As...
Forum: support.Hardware 11 December 2020, 19:17
Replies: 5
Views: 664
Posted By turrican9
RGB uses +5v from the Amiga from pin 23 When...

RGB uses +5v from the Amiga from pin 23

When the monitor switches on the +5v is used to trigger the RGB as far as I understand. And if there was a cracked solderjoint on the Amigas +5v feeding...
Forum: support.Hardware 11 December 2020, 12:06
Replies: 5
Views: 664
Posted By turrican9
cold solderjoint on the +5v rail somewhere that...

cold solderjoint on the +5v rail somewhere that causes the +5v to drop enough when the monitor is on for the floppy drive to fail?
Forum: support.Hardware 14 November 2020, 23:38
Replies: 0
Views: 427
Posted By turrican9
Questions about the Diet Agnus A500+ 8372A Adapter

So my question is if you need to solder on any of the caps if not adding RAM to the adapter card but instead using Amigas RAM? Of course other than the VBB cap if having a VBB Agnus. I assume that...
Forum: support.Hardware 07 November 2020, 13:42
Replies: 65
Views: 6,030
Posted By turrican9
So it's not supporting vsync and smooth 50/60Hz...

So it's not supporting vsync and smooth 50/60Hz scrolling in games? Also, is there scanline emulation?
Forum: support.Hardware 01 November 2020, 02:31
Replies: 9
Views: 640
Posted By turrican9
Thanks. It's a real nice feeling to see it...

Thanks. It's a real nice feeling to see it working after all this work. Another fault I just found was that I had used a 100uF cap at C307 instead of a 1000uF. This probably caused the problem with...
Forum: support.Hardware 01 November 2020, 01:16
Replies: 9
Views: 640
Posted By turrican9
I swapped the Denise that came from the 6A board...

I swapped the Denise that came from the 6A board with the Indivision ECS V2 which I had in mind for this build anyway. Now the mouse is working fine.

Building the A500 ++ replica board has been...
Forum: support.Hardware 31 October 2020, 22:46
Replies: 9
Views: 640
Posted By turrican9
Been doing some testing now. At first the...

Been doing some testing now. At first the keyboard and the audio filter was not working. But then I realised that U38 and U39 was named 1488 and 1489. I had swapped them around. After fixing that the...
Forum: support.Hardware 31 October 2020, 21:50
Replies: 9
Views: 640
Posted By turrican9
omg. It's alive! It lives!...

omg. It's alive! It lives! :spin:spin:spin:great:great:cheese:lol:lol:scream:scream
Forum: support.Hardware 31 October 2020, 21:04
Replies: 9
Views: 640
Posted By turrican9
This could have been really dramatic. I think I...

This could have been really dramatic. I think I found the problem. I unsoldered the linefilter and noticed the short had gone from the rest of the motherboard. However, the short was still present...
Forum: support.Hardware 31 October 2020, 19:40
Replies: 9
Views: 640
Posted By turrican9
I have been looking for solder blobs with a...

I have been looking for solder blobs with a magnifying glass. I have also been checking for correct polarity on the electrolyte caps. Could not see anything out of the ordinary. If there is a solder...
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