Mac IIcx no chime after board re-cap and startup circuit repair

[phipli]

Yes, I've had that too on an Acorn A3020 (battery leakage)

Upgrading My Acorn A3010

Upgrading My Acorn A3010 I also made this page, to help someone install the DualClock board in their A3010. Background and Repair Battery damage repairs – Thankfully the floppy port was OK I …

elephantandchicken.co.uk

I know how that feels too. This isn't the worst one that I've worked on, just the only one I've documented.

I'm not 100% confident with the Bomark schematics.

Wise words. They're horrible to read and do contain errors.

I have a dead and a mostly working cx in the house, shout if you're stuck on whether a specific pair of pins are connected, send me the parts and pins and I'll check if they beep through. The non-functional board is just sat on the side in the other room, I wouldn't trust it as glass case because I haven't even started repairing it yet and... well, it has worse damage than yours , but the other one boots and runs (I suspect it has a dry contact somewhere because it seems to crash after a while when it warms up as if a pin lifts as things move a little).

 

[Kai Robinson]

Unfortunately mine isn't socketed so its going to be a pig to get out. 128 pin PGA sockets seem like hen's teeth (or extremely expensive) too.

Peconnectors.com sells them pretty cheaply.