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Forum: support.Hardware 22 February 2018, 06:30
Replies: 4
Views: 157
Posted By ajk
If it's a Cherry keyboard there aren't pads as...

If it's a Cherry keyboard there aren't pads as such, there are switches:
...
Forum: New to Emulation or Amiga scene 21 February 2018, 14:42
Replies: 18
Views: 264
Posted By ajk
There are a few things that may be at fault: ...

There are a few things that may be at fault:

1) dust and dirt on the read/write heads
2) old dry grease (and dust and dirt) on the motor and rails
3) malfunctioning disk insertion switch
4)...
Forum: New to Emulation or Amiga scene 21 February 2018, 14:34
Replies: 18
Views: 264
Posted By ajk
Have you tried other games? If none of them work,...

Have you tried other games? If none of them work, then either all of the floppies are faulty or the drive itself needs servicing. Almost all floppy based games will self boot under normal...
Forum: support.Hardware 19 February 2018, 21:21
Replies: 8
Views: 265
Posted By ajk
It is a truly bizarre problem; I would also...

It is a truly bizarre problem; I would also suggest booting a very plain system and seeing if it happens then as well.
Forum: support.Hardware 18 February 2018, 08:55
Replies: 8
Views: 265
Posted By ajk
So does the screen blank out while you are...

So does the screen blank out while you are holding and moving the icon, or after you have dropped it into its new location? If you drag let's say the Ram Disk icon around on the workbench from one...
Forum: support.Hardware 17 February 2018, 11:11
Replies: 10
Views: 227
Posted By ajk
Yes, this is the kind of thing that requires...

Yes, this is the kind of thing that requires patience and attention to detail. Still, the board is relatively speaking in good shape and can almost certainly be brought back to working condition. You...
Forum: New to Emulation or Amiga scene 17 February 2018, 08:14
Replies: 69
Views: 3,433
Posted By ajk
Very nice :)

Very nice :)
Forum: Amiga scene 16 February 2018, 17:29
Replies: 63
Views: 1,907
Posted By ajk
Almost - hopefully not too long now: ...

Almost - hopefully not too long now:

https://www.a1200.net/new-compatible-key-caps/
Forum: Amiga scene 16 February 2018, 14:48
Replies: 108
Views: 3,096
Posted By ajk
Well, you can upgrade almost any Amiga to almost...

Well, you can upgrade almost any Amiga to almost any spec with enough gear.

The thing you can't really change is the basic architecture, i.e. much more capable Zorro-3 bus and chip RAM...
Forum: Hardware mods 16 February 2018, 12:13
Replies: 11
Views: 2,366
Posted By ajk
That is a very interesting approach. A middle...

That is a very interesting approach. A middle ground between a regular RAM expansion and the MegAChip (http://amiga.resource.cx/exp/megachip). If only the PLCC connectors were not so expensive :)
Forum: support.Hardware 16 February 2018, 06:40
Replies: 10
Views: 227
Posted By ajk
Thanks, good photo. It doesn't look too bad...

Thanks, good photo. It doesn't look too bad indeed but there are some traces that appear somewhat suspect. I have marked a few in the photo below, would be worth checking out with a multimeter....
Forum: support.Hardware 15 February 2018, 20:55
Replies: 10
Views: 227
Posted By ajk
If you have the capability to burn a diagnostic...

If you have the capability to burn a diagnostic ROM (http://www.diagrom.com/), it might be worth a try. Although if the CPU doesn't manage to start up, it won't run the diagnostic code either...

I...
Forum: Hardware mods 15 February 2018, 17:41
Replies: 324
Views: 58,584
Posted By ajk
Yes, you can salvage the connectors from an A600...

Yes, you can salvage the connectors from an A600 (or other) motherboard, I got mine from a failed A500.

You can use either crystal, but depending on which you choose there is an IC you either need...
Forum: Hardware mods 15 February 2018, 16:20
Replies: 324
Views: 58,584
Posted By ajk
They run fine without the Amber, whether or not...

They run fine without the Amber, whether or not the other scandoubler related parts have been installed.
Forum: Amiga scene 15 February 2018, 16:17
Replies: 63
Views: 1,907
Posted By ajk
It depends on the condition but from about €150...

It depends on the condition but from about €150 upwards for a non-expanded one. For the cheaper ones you may need to put up with yellowing, dirt and a generally a less serviced system.
Forum: Amiga scene 14 February 2018, 12:53
Replies: 63
Views: 1,907
Posted By ajk
That is pretty much the gist of it. The A500 is...

That is pretty much the gist of it. The A500 is cheaper up-front, but the A1200 is easier to expand (it has built-in support for a hard drive and accelerators/memory expansions fit neatly inside the...
Forum: Amiga scene 13 February 2018, 19:31
Replies: 63
Views: 1,907
Posted By ajk
The A1200 is the overall best system for games....

The A1200 is the overall best system for games. There is no way to play AGA games on an A500, but the A1200 can run practically all A500 games. Yes, there are some incompatibilities but WHDLoad and...
Forum: Nostalgia & memories 12 February 2018, 15:20
Replies: 75
Views: 2,327
Posted By ajk
Commodore should have pushed the standard for...

Commodore should have pushed the standard for games higher with the A1200. Even if it only did have the 020, they could have urged developers to make full use of AGA, a hard drive and maybe some fast...
Forum: support.Hardware 10 February 2018, 22:23
Replies: 4
Views: 191
Posted By ajk
Generally the older generation Amiga systems...

Generally the older generation Amiga systems which had through-hole rather than surface mount technology capacitors, do not need recapping. But this is not a hard rule and also through-hole...
Forum: support.Hardware 09 February 2018, 22:18
Replies: 2
Views: 157
Posted By ajk
I'm too lazy to check it myself now, but if there...

I'm too lazy to check it myself now, but if there are any unused pins on the Agnus (multiple ground connections perhaps?), it might be possible to desolder one of them and move it to that location....
Forum: support.Hardware 08 February 2018, 07:26
Replies: 4
Views: 230
Posted By ajk
All Amigas share the same keyboard protocol. The...

All Amigas share the same keyboard protocol. The A600 and A1200 are a little differently implemented in that the keyboard controller is on the motherboard rather than built into the keyboard.
Forum: support.Hardware 07 February 2018, 23:16
Replies: 4
Views: 230
Posted By ajk
The CD32 keyboard I have seen pictures of looks...

The CD32 keyboard I have seen pictures of looks just like the A3000/A4000/CDTV keyboards but with a grey colour scheme to match the CD32. It was speculated that it may have been produced by a third...
Forum: support.Apps 06 February 2018, 08:53
Replies: 8
Views: 391
Posted By ajk
If the system is running to such a degree that...

If the system is running to such a degree that you can load software, there can't really be any major faults. The reason why diagnostic tools tend to be Kickstart replacements is so that it's...
Forum: support.Hardware 05 February 2018, 21:58
Replies: 11
Views: 337
Posted By ajk
At least the SCSI2SD is available in many...

At least the SCSI2SD is available in many variations and shops:

https://amigakit.amiga.store/catalog/product_info.php?products_id=1264
http://store.inertialcomputing.com/category-s/100.htm

But...
Forum: support.Hardware 05 February 2018, 19:34
Replies: 11
Views: 337
Posted By ajk
I am not familiar with the Trumpcard...

I am not familiar with the Trumpcard specifically, but if it is a SCSI controller would it not make better sense to get a SCSI to CompactFlash (or SD) adapter rather than having IDE in between?...
Forum: Nostalgia & memories 05 February 2018, 09:09
Replies: 75
Views: 2,327
Posted By ajk
I'm not sure what version the oscilloscope has,...

I'm not sure what version the oscilloscope has, but the only thing that is cut down in the EC version is the address bus (amount of memory that can be accessed). In 1992 the A1200 couldn't possibly...
Forum: support.Hardware 05 February 2018, 08:50
Replies: 12
Views: 439
Posted By ajk
Schematics are available here:...

Schematics are available here: http://www.amigawiki.de/dnl/schematics/A2000_R6.pdf

Looks like the charging is simply done by limiting the current with a 470 ohm resistor (and diode) so the current...
Forum: Nostalgia & memories 05 February 2018, 08:26
Replies: 75
Views: 2,327
Posted By ajk
I have an old Tektronix digital oscilloscope from...

I have an old Tektronix digital oscilloscope from 1992, which also uses the 68020, and cost thousands if not tens of thousands at the time, so maybe that offsets the washing machines a bit :D It was...
Forum: support.Hardware 05 February 2018, 07:32
Replies: 1
Views: 94
Posted By ajk
Yes, the two Kickstart ROMs need to be in the...

Yes, the two Kickstart ROMs need to be in the correct sockets. It won't damage anything if they are swapped, but when the system tries to access them the data will be scrambled and the Amiga will not...
Forum: support.Hardware 03 February 2018, 08:41
Replies: 7
Views: 313
Posted By ajk
There is no sense in downgrading to 3.0 if the...

There is no sense in downgrading to 3.0 if the 3.1 ROMs are working; if you have no need for an actual IDE drive, use a terminator as suggested above. It's only a couple of resistors (instructions...
Forum: New to Emulation or Amiga scene 03 February 2018, 08:37
Replies: 69
Views: 3,433
Posted By ajk
You can read 720k PC formatted floppies with the...

You can read 720k PC formatted floppies with the help of CrossDos (Google will help you out with this), but it's still going to be a hassle with just 1MB of RAM, disks will need to be swapped...
Forum: Hardware mods 02 February 2018, 23:13
Replies: 51
Views: 14,492
Posted By ajk
GALs can be programmed with many fairly...

GALs can be programmed with many fairly inexpensive Chinese programmers and the LSI chip with a parallel cable (if you have an older PC available). Or someone can do them for you. I suggest browsing...
Forum: Hardware mods 02 February 2018, 22:01
Replies: 51
Views: 14,492
Posted By ajk
Would this help? ...

Would this help?

http://www.amigawiki.org/loc7/locator7.php
Forum: New to Emulation or Amiga scene 02 February 2018, 20:14
Replies: 69
Views: 3,433
Posted By ajk
.dms files are similar to .adf files in that they...

.dms files are similar to .adf files in that they represent a floppy disk image. You can unpack (http://aminet.net/package/util/arc/dms111) them to a floppy disk.

.lha files are simply archives,...
Forum: Hardware mods 02 February 2018, 08:40
Replies: 215
Views: 11,211
Posted By ajk
I am also running the A3660 (and an original...

I am also running the A3660 (and an original A3640 before it) on an A3000 with no issues so far. Although I haven't done extensive load testing or anything like that.
Forum: New to Emulation or Amiga scene 02 February 2018, 08:21
Replies: 69
Views: 3,433
Posted By ajk
Nice, good to hear that you got both the monitor...

Nice, good to hear that you got both the monitor and floppy drive sorted out :) Having just those two things makes an A500 so much nicer to use in a modern environment and the investment is not big...
Forum: New to Emulation or Amiga scene 30 January 2018, 09:17
Replies: 69
Views: 3,433
Posted By ajk
That's odd... I would imagine that horizontal...

That's odd... I would imagine that horizontal sync is always needed. Are you sure you are not looking at the diagram backwards or something? Sometimes it's not clear if it's from the solder side or...
Forum: Coders. General 28 January 2018, 17:19
Replies: 10
Views: 516
Posted By ajk
Well, it doesn't really matter for a Hello World...

Well, it doesn't really matter for a Hello World type program. The Amiga API will be more efficient when coding a (complex) program specifically for the Amiga. But it will not be portable to other...
Forum: Coders. General 28 January 2018, 17:04
Replies: 10
Views: 516
Posted By ajk
You have "-nostdlib" in the Makefile. But...

You have "-nostdlib" in the Makefile. But printf() is part of the standard library and now there is no implementation for it, which is why you get the error.

Either build with the standard library...
Forum: support.Apps 27 January 2018, 16:20
Replies: 3
Views: 252
Posted By ajk
http://wiki.amigaos.net/wiki/AmigaDOS_Introduction...

http://wiki.amigaos.net/wiki/AmigaDOS_Introduction#Naming_Files

In principle anything except slash or colon can be used. Personally I would nevertheless avoid characters that can be confused with...
Showing results 1 to 40 of 1016

 
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