Fw: [dragonuser] Help with Dragon *Beta* Main Board

This appeared on the dragonuser site - looks like a very interesting machine. He's based in Wiltshire but does travel around a bit if anyones able to help with basic faultfinding . By the way Jules - Dragon diagrams are available from the Dragonuser group. Geoff. P.S. Had a good dig around in the front part of the loft but no Nascom yet , although I did find my two Nascom Imp Printers - chassis only , bought a long time after Nascom ceased to exist. ----- Original Message ----- From: "Richard" &lt;richard.harding(a)virgin.net&gt; To: &lt;dragonuser(a)yahoogroups.com&gt; Sent: Sunday, July 11, 2004 1:37 PM Subject: [dragonuser] Help with Dragon *Beta* Main Board Hi all, I have come into possession of a Dragon Data Beta (aka. The ?2500 business machine) prototype main board. The sad news is that appears to be dead. Is there anyone out there who could possibly help in getting this beastie back into life?? (If it ever worked) Serious reverse engineering and electronic skills required! I've had a poke about with an oscilloscope and it is clocking OK and there is life on the data buses. I have uploaded a few pics into the photos section. For those interested it appears to have the following features: ? 256 K RAM ? Twin 6809E's clocked at 1.8Mhz ? Onboard Floppy controller (3.5" Single sided drives) ? Onboard RS232 ? Optical interface ? External Keyboard (no keyboard L ) ? Unkown DIN connector - Mouse? Light Pen?? ? No built in Drag 64 mode! Only an OS-9 boot ROM (ROM dumps available). Simon Hardy is also holding (most of) a Dragon Data Alpha (aka Professional) prototype for me. More info on this in the coming months when we can actually get a power supply attached. BFN Richard www.dragondata.co.uk ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Domains - Claim yours for only $14.70 http://us.click.yahoo.com/Z1wmxD/DREIAA/yQLSAA/16uqlB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dragonuser/ <*> To unsubscribe from this group, send an email to: dragonuser-unsubscribe(a)yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/