On 05/10/2015 19:52, "william degnan" <billdeg...@gmail.com> wrote:
> Look for inconsistencies in voltages and pulses to and from RAM. You may > need RAM at the lowest memory locations to boot. Hooking up the keyboard > at least to eliminate a missing keyboard as a reason the system does not > boot, and you can issue commands to search a disk drive even if the display > is faulty. At least if you have a IEEE drive attached you can watch for > the the drive to respond when the 4032 is powered on, for signs of life > from the computer. I can try that, though there may be similar bitrot in my drives since they've not been powered up for 10+ years... -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?