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Offline rthorntnTopic starter

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Just received an Amiga 2000 motherboard
« on: October 05, 2018, 02:41:39 AM »
Hi All,

I'm new to the forum, apologies if this has been asked a lot before.

I ordered and received from Ebay an Amiga 2000 motherboard with very little if any signs of battery damage, it was sold as for parts but the plan is to get it booting (for nostalgic reasons).

I have all the tools needed to troubleshoot and perform repairs (bench power, hot air, multimeter, oscilloscope, soldering iron).

Denise was missing so I have bought a replacement.

I'm just trying to figure out where to start, how to get it connected to an ATX power supply perhaps?

Looks like it has a composite port so I can connect that into my projector (I know my projector supports 15Hz)?

If I power it correctly, without a battery and keyboard, should I get video?

If I get video, what options do I have for a keyboard and mouse?

That's enough for now.

Thanks.

Richard



 

Offline amiman99

Re: Just received an Amiga 2000 motherboard
« Reply #1 on: October 05, 2018, 04:22:18 PM »
Hi, You could buy an adapter for the power supply, or find a guide how to convert the the power supply to Amiga. http://wordpress.hertell.nu/?p=282
When using a non Amiga PS, there is a J300 jumper that switches a TICK clock. http://www.l8r.net/technical/t-2000-jumpers.shtml
FYI, Composite video is in Black and white, so don't worry if something looks odd.
The Mb will work w/o keyboard or battery.
They have mouse and keyboard adapters you can get, and use PC style accessories.
Having a keyboard and a front LED will aid you in troubleshooting if things don't work. When there is an error the CAPS LOCK will blink number of times, and Front LED will dim during reboot.

A500 KS 2.1, 1MB Chip, 68000
A600 KS 3.1, 2MB Chip, ACA630 32MB RAM
A1000 KS 1.3, 8MB RAM
A1200 KS 3.1, Blizzard IV 50MHz 64MB RAM
A2000 KS 2.1, 68030 25MHz, 6MB RAM
A3000 KS 3.1, 68030 25MHz, 16MB RAM
A4000 KS 3.0, 68040 25MHz, 16MB RAM
CDTV KS 3.1, 4MB RAM
CD32
(AROS BOX) Dead :(
 
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Offline Fat Barry

Re: Just received an Amiga 2000 motherboard
« Reply #2 on: October 05, 2018, 04:26:13 PM »
Hi


You can NEW Amiga A2000 PSU’s on EBay

 
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Offline rthorntnTopic starter

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Re: Just received an Amiga 2000 motherboard
« Reply #4 on: October 06, 2018, 02:48:38 AM »
Thanks, I ordered a couple of these:

http://www.ianstedman.co.uk/Amiga/designs/Amiga_ATX_Adaptor/amiga_atx_adaptor.html

I also ordered the Amiga 2000 cable version of the Lyra 3 keyboard adapter from AmigaStore.eu.

Just thinking ahead...

If it doesn't start, are there any good troubleshooting guides and circuit diagrams?

If it does start, is there an inexpensive (around 50 euro) way to attach a storage (SD card) drive to it, I'm happy to have a PCB fabricated and hand solder something to keep the costs down?

Thanks.
« Last Edit: October 06, 2018, 09:16:08 AM by rthorntn »