Hi,
I just got my M4 (thanks Duke!) but I've been unable to make it work. I have a 6128+ and an MX4 M4 board + centronics cable (both from Duke).
With no M4 attached, my CPC+ works perfectly fine, but when I turn on the machine with the M4, nothing happens (black screen, no video signal). I pushed f2 (and waited a little bit) to see if Burning Rubber's music kicked in, but I got no sound either.
At first, I thought it could be caused by lack of power (I'm not using the plus monitor/power supply), so I tried with both the CPC power and the USB, with the same result (nothing happens). The M4 leds seem to behave as expected with both power inputs (blue one always on, green one flashes on boot) and the CPC one seems fine also (bright green).
I also tried with two different SD cards -- FAT32, known to work -- with no luck.
Any ideas on what may be happening here?
Thanks!