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Search: Posts Made By: Mick
Forum: Hardware mods 02 February 2022, 15:33
Replies: 520
Views: 106,583
Posted By Mick
I basically just transplanted footprints over the...

I basically just transplanted footprints over the imported Gerbers for that and then updated it to 2B (with U49 added), I never made the Gerbers for it available I just uploaded the Kicad files to...
Forum: Hardware mods 09 January 2022, 20:46
Replies: 520
Views: 106,583
Posted By Mick
Like I said, I think it solves all of the A600's...

Like I said, I think it solves all of the A600's flaws and general lack of love/attractiveness. It's called choice if people don't like it don't use it nobody is forcing them.

I've uploaded the...
Forum: Hardware mods 06 January 2022, 19:54
Replies: 520
Views: 106,583
Posted By Mick
If anyone's interested I'm about 150 unrouted on...

If anyone's interested I'm about 150 unrouted on this now (but still unsure about a few things mentioned above).

https://i.postimg.cc/br9h6Yq6/A600E.png
Forum: Hardware mods 06 January 2022, 19:41
Replies: 520
Views: 106,583
Posted By Mick
Nah it's designed around CXA2075 although you can...

Nah it's designed around CXA2075 although you can probably get away with CXA1145 for just the DB23 output. I'm just not sure if the composite video output with the CXA2075 is as good as it can be. I...
Forum: Hardware mods 04 January 2022, 22:32
Replies: 520
Views: 106,583
Posted By Mick
BTW does anyone know how Jens converted Zorro to...

BTW does anyone know how Jens converted Zorro to A1200 connector on the ACA500?
Forum: Hardware mods 04 January 2022, 22:21
Replies: 520
Views: 106,583
Posted By Mick
It's too late now. I would like to do a totally...

It's too late now. I would like to do a totally unmodified rev 2D but I would need someone to send me 1:1 scans of an empty PCB for measuring. It doesn't matter if there's a bit of damage as long as...
Forum: Hardware mods 30 December 2021, 21:13
Replies: 520
Views: 106,583
Posted By Mick
I didn't add any I expected stedy would delete...

I didn't add any I expected stedy would delete the old attempts so I didn't think there would be any confusion, use the files in post #472 if you're unsure those are the ones I used.

I didn't...
Forum: Hardware mods 30 December 2021, 20:01
Replies: 520
Views: 106,583
Posted By Mick
No boot selector, pin 9 and 11 of CN11 connect to...

No boot selector, pin 9 and 11 of CN11 connect to ground according to the schematics. _SEL0 (15 of U8) and _SEL1 (16 of U8) go to pin 10 and 12 of CN11. It should all be connected right the only area...
Forum: Hardware mods 30 December 2021, 19:48
Replies: 520
Views: 106,583
Posted By Mick
Alright thanks Jope. Other things I'm not...

Alright thanks Jope.

Other things I'm not sure about is which of the clock signals to send to the expansion slot.

7MHZ or 7MHZ_A
CDAC or CDAC_A
CCK or CCK_A
CCKQ or CCKQ_A

Does it really...
Forum: Hardware mods 25 December 2021, 17:04
Replies: 520
Views: 106,583
Posted By Mick
Just a quick question if anyone can answer. ...

Just a quick question if anyone can answer.

Should you combine the 'E' signal between Gayle and the MC68000? or keep them separated and just route the CPU signal to the Zorro slot by itself?
...
Forum: Hardware mods 23 December 2021, 20:39
Replies: 520
Views: 106,583
Posted By Mick
I started working on putting A600 into A1200 form...

I started working on putting A600 into A1200 form factor at one point, figured it would solve all of the A600's problems like missing numpad, no new cases, proper expansion port.. but a> it's...
Forum: support.Hardware 05 December 2021, 14:15
Replies: 26
Views: 2,858
Posted By Mick
I think it's R321/R331 that control the amount of...

I think it's R321/R331 that control the amount of gain, when I built my A600 I used the same values on the audio circuit from the A1200 Rev 2 schematics as it seems earlier boards were prone to...
Forum: MarketPlace 14 October 2021, 14:05
Replies: 17
Views: 1,923
Posted By Mick
I've used Centuriontech before and the seller...

I've used Centuriontech before and the seller seems helpful and responsive, don't know him personally. I've bought multiple PSU's and those rear IO panels are a great replacement for rusted shielding.
Forum: MarketPlace 14 October 2021, 14:02
Replies: 8
Views: 946
Posted By Mick
I recently replaced my 1080Ti, how much are you...

I recently replaced my 1080Ti, how much are you looking to pay?

It's an EVGA GTX 1080 Ti SC2.
Forum: News 28 September 2021, 20:15
Replies: 31
Views: 5,991
Posted By Mick
Great work. My main moan though would be the...

Great work.

My main moan though would be the additional keys, is it not possible to get the original space bar size and remove all extra keys an an option for the purists? if not wouldn't it be...
Forum: Hardware mods 30 August 2021, 16:09
Replies: 520
Views: 106,583
Posted By Mick
Ah right, I opted to just upgrade it to a 2B and...

Ah right, I opted to just upgrade it to a 2B and then added U49 for good measure, the differences between 2A and 2B were I think all in the Power and Ground traces where 2B had quite a few extra...
Forum: Hardware mods 26 August 2021, 23:02
Replies: 520
Views: 106,583
Posted By Mick
The Sony chip isn't needed for RGB it's just for...

The Sony chip isn't needed for RGB it's just for composite/s-video and 1145 will never work because it's missing iref/vref and the delay lines/band pass filter (which I'm sure someone will make...
Forum: Hardware mods 26 August 2021, 22:45
Replies: 520
Views: 106,583
Posted By Mick
The only problem with replicating the 2A Boboo is...

The only problem with replicating the 2A Boboo is I believe from looking closely at them that it was a pre-production version (unfinished), if you compare it to a 2B it's largely the same but there...
Forum: Hardware mods 03 July 2021, 21:22
Replies: 24
Views: 6,197
Posted By Mick
Are there any schematics for it? if not if...

Are there any schematics for it? if not if someone can draw them up in Kicad I could do the design side of it using my measuring method. It might be a bit tricky if it's 6 layers though.
Forum: support.Hardware 02 July 2021, 23:39
Replies: 6
Views: 729
Posted By Mick
R86 connects directly to +12V, power supply issue...

R86 connects directly to +12V, power supply issue on the 12V line perhaps? does anything else in the A2000 use +12V?

It's on schematic page 3-54 of the link jasonsbeer posted, bottom right corner.
Forum: support.Hardware 02 July 2021, 15:14
Replies: 37
Views: 1,933
Posted By Mick
It sounds intermittent whatever it is, you might...

It sounds intermittent whatever it is, you might just have to replace major components one by one until it works, maybe Gary or Ramsey if _FAIL is not normal?
Forum: support.Hardware 01 July 2021, 23:23
Replies: 6
Views: 729
Posted By Mick
I was going to link to schematics to make it...

I was going to link to schematics to make it easier for others to help but I can't even find readable schematics and I spent a good 30mins searching. The only one I could find had unreadable...
Forum: support.Hardware 01 July 2021, 23:20
Replies: 37
Views: 1,933
Posted By Mick
Fingers crossed you get it working when cleaned....

Fingers crossed you get it working when cleaned. :great
Forum: Retrogaming General Discussion 28 June 2021, 22:54
Replies: 38
Views: 3,055
Posted By Mick
The internet was a much better place before...

The internet was a much better place before everything became so personal and massively centralised through big tech companies like Google, Facebook and Twitter.

If you had a hard time on a...
Forum: support.Hardware 28 June 2021, 22:20
Replies: 37
Views: 1,933
Posted By Mick
So there's no activity at all? even outside of...

So there's no activity at all? even outside of video?
Forum: support.Hardware 28 June 2021, 21:58
Replies: 37
Views: 1,933
Posted By Mick
I'd replace the scorched tantalum just to be...

I'd replace the scorched tantalum just to be safe, you're probably better off doing what cpiac64 said temporarily just to make sure the PCB doesn't have any damage.
Forum: support.Hardware 28 June 2021, 19:22
Replies: 37
Views: 1,933
Posted By Mick
My only other guess would be like A4000Bear says...

My only other guess would be like A4000Bear says but maybe the tantalum was simply faulty and in shorting out has got really hot on the bottom as well as damaged other components? in terms of...
Forum: support.Hardware 28 June 2021, 19:11
Replies: 37
Views: 1,933
Posted By Mick
How long did you use it for before recapping it?...

How long did you use it for before recapping it? you said it was fine before?
Forum: support.Hardware 28 June 2021, 19:04
Replies: 37
Views: 1,933
Posted By Mick
I think you need a special meter but I'd probably...

I think you need a special meter but I'd probably measure what the 5V reads going into them and what's coming out on the opposite side. It sounds like there's an intermittent short from what you've...
Forum: support.Hardware 28 June 2021, 18:46
Replies: 37
Views: 1,933
Posted By Mick
Is it possible the pad has undergone a repair?...

Is it possible the pad has undergone a repair? directly underneath the pad is either 5V or ground plane but I'm not sure which. Have you tested for shorts? +AVID has a small sectioned off power plane...
Forum: Hardware mods 27 June 2021, 14:59
Replies: 24
Views: 6,197
Posted By Mick
The layers don't always line up properly and also...

The layers don't always line up properly and also I noticed some slight scaling issues, that's large part of the reason why I didn't realise that Commodore had worked to a 10mil grid sooner. I think...
Forum: Hardware mods 27 June 2021, 13:03
Replies: 61
Views: 15,576
Posted By Mick
So start with something less complicated like the...

So start with something less complicated like the CIA's?

Can't we get the bulk of the code from Mike at FPGAArcade or something? he talks about his cores being made open source and moved to...
Forum: support.Hardware 27 June 2021, 12:44
Replies: 9
Views: 847
Posted By Mick
Ignoring build differences and some layout...

Ignoring build differences and some layout changes there doesn't seem to be anything really between them.

From what I've studied 1A-1D1 were designed with pre-production chips in mind, I think all...
Forum: Hardware mods 26 June 2021, 20:17
Replies: 61
Views: 15,576
Posted By Mick
It's only a quick mock-up but would it be...

It's only a quick mock-up but would it be realistic to do something like this? or would the smaller chips be a problem?

https://i.postimg.cc/ThMfVbbg/Untitled.png

Are the 3.3V FPGA's absolutely...
Forum: Hardware mods 07 June 2021, 16:23
Replies: 61
Views: 15,576
Posted By Mick
Maybe start with something easier like A600? if...

Maybe start with something easier like A600? if someone could program like-for-like chips I'm sure it wouldn't be too hard to modify the board I did in Kicad to take the new footprints/pinouts?
...
Forum: Hardware mods 07 June 2021, 15:46
Replies: 520
Views: 106,583
Posted By Mick
These are the Gerbers I used if stedy's uploads...

These are the Gerbers I used if stedy's uploads are confusing people. I don't know why he didn't just upload the latest files by themselves instead of muddying the water with an older (and much...
Forum: Hardware mods 17 March 2021, 18:29
Replies: 520
Views: 106,583
Posted By Mick
Any luck?

Any luck?
Forum: Hardware mods 17 March 2021, 17:05
Replies: 520
Views: 106,583
Posted By Mick
Twins.

Twins.
Forum: Hardware mods 17 March 2021, 16:20
Replies: 520
Views: 106,583
Posted By Mick
Here's the BOM I made but it's likely not the...

Here's the BOM I made but it's likely not the cheapest parts and there may a couple of quantity errors.
Forum: Hardware mods 25 February 2021, 10:45
Replies: 520
Views: 106,583
Posted By Mick
These are the schematics for a 1:1, should be...

These are the schematics for a 1:1, should be more accurate than amigawiki.
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