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Hi, thanks Alastair for the info. I thought I'd already emailed Tormod but when I just checked I couldn't see one had gone. I've sent another now - but the info on the MMC sounds like a probable alternative. Thanks again.

I know this may be an impossible ask but it's worth a try. Or maybe someone out there knows of a link to an outlet. TIA

Another check. Although there is no display I get the DC voltages at the connector you described.
P1=12v, P2=5v, P3=-5v, P6=-0.4v, P7=18v, P8=8.5v, P9=2.4v.
I can hear and see relay RL1 operating.

Mmm. applied contact cleaner and left to soak/dry out. After 2 trials the Dragon starts ok but after some run time a restart becomes iffy- until finally there is no display. I suspect a component is gradually heating up until it fails. Does that seem plausible?

@ robcfg, I was on the ac range when I measured.

Thanks Alastair, I just dragged the pic into the message box as you said - easy when you know how.D32 board

@Serenarian, robcfg Thanks to you both for your responses. My multimeter must be on the fritz as my readings on the 9pin connector were: 1) 1.6, 3) 14.4, and 5) 14.7. But while I was exploring there was a small fzzt and I had a picture again. After more exploring I found that the on/off switch at th...

Amazing to such widespread, international interest in Dragon. I bought mine (D32) not long after they came out: copied games from mags, bought cassettes from local suppliers, and even wrote a game for my pre-teen sons that incorporated a machine code sub-routine to move sprites quicker around the sc...