Recapping questions

[blanghorst]

So, I think I've decided to bring my Amigas back to life and play with them, so I'll probably be asking lots of questions. The last time I was here, I had just acquired an Amiga 3000 and a SCSI card reader, which I never quite got working. My Amiga 2000 startup sequence doesn't seem to work quite like I want, so I'll probably eventually post questions about that - I have one of those ROM switchers (DKB?) with a 1.3 ROM and 2.0 ROM and the startup sequence is supposed to detect the currently selected ROM and load the correct WB. For whatever reason, it doesn't seem to work any longer - I suppose that my ROM switcher could be dead.

HOWEVER, the first thing I want to consider is having my systems recapped. Who do you guys recommend for that? Here is some of the work I'd like to have done:

1. Amiga 2000 rev 6.x motherboard - recap
2. Amiga 2000 rev 4.3 motherboard - recap, cleaned, and replace CPU socket. This was my original A2000 board and was damaged by a battery leak. I figure if I could get if fixed, I'll have a backup OR I could slowly start building another A2000.
3. Amiga 3000 board - recap
4. Does anyone recap boards? I have an A2091, a GVP 3001 68030 CPU board, and a Microway FlickerFixer I'd like to get recapped at some point.
5. Power supplies - do you guys get those recapped as well?

Thanks

[blanghorst]

The 2000s (as the 3000) are notorious for battery leak damage.

I heard good things about Acill, who is on his forum as well.

the 2000 caps leak less likely than the defective SMD caps used in the 4000 and 1200, some also in the 3000.

PSU recap is a great idea, ask Acill if he does that too.

A quick question for the electronic engineers among this crowd:

Some germans seem to love replacing the electrolytic caps with ceramic ones, any problems with that ? Other than microfractures from bending/soldering ? I certainly wouldnt want tantalum caps, they make a mess when they are goners....

Yeah, I replaced the batteries on my A3000 and the new A2000 board when I acquired them. My old board was in my Amiga and sitting in my garage for 20+ years and by the time I pulled it out, it was too late.

I am an Electrical Engineer, but I'm too busy and lazy to recap the boards myself especially when the prices I've seen are under $100 per machine.

Thinking about my original post and the issue with the startup sequence and DKB ROM switcher, I bet something is up with the ROM switcher. When I installed the GVP board, the machine wouldn't boot and I found out was the reason was that there was a resistor soldered across one of the sockets that had to be snipped for the accelerator to work. I wonder if that broke the switcher - it really shouldn't have, as I researched and found that solution, but it may have.  I seem to remember the startup script working fine back in the day.  Maybe I should just pull the accelerator or look for a new ROM switcher.

[blanghorst]

Amiga 2000s do not really need recapping.
And with through hole caps, its actually a more expensive job than many other Amigas.

Why don't A2000s need recapping?  They have the older electrolytic caps, right?

[blanghorst]

Thanks guys!  Acill, I'll send you a message in the next couple of days.