I got it!

我的问题

Cheaper than a repair

我的修理方法

It would have been easyer if I was under 70 years old!

It took about 2 hours.

我的建议

I would advise not trying this unless, like me, you have spent the last ten years of your retirement building and repairing computers.

P.S. 45 years as a maintainence machinest.