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Old 29th Jul 2022, 3:42 pm   #30
gridrunner's Avatar
Join Date: Jun 2008
Location: Manchester, UK.
Posts: 201
Default Re: HP 150 Touchscreen II repair

Hi all,

Just a quick update on this. Removing the link to W1 is now letting the machine boot with the co-pro board installed. I can only assume that the upgrade option the previous owner had installed has never worked in over 35 years. I suppose that if you never had seen the difference between co-pro and no co-pro support, you might not be able to tell if it was functioning or not. It was apparently purchased to speed up AutoCad.

I've stripped down and cleaned the keyboard so the next stage after re-assembly is to get time to look at the hard disk unit.
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