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Old 1st Jan 2018, 3:22 pm   #7
Dickie
Octode
 
Join Date: Sep 2004
Location: St. Albans, Hertfordshire, UK.
Posts: 1,477
Default Re: 8085 processor questions

If you find a clock signal, then have a look on the data and address buses for activity. If there is some then the processor is running and you can look for stuck lines. If there is none then check that the hold, reset, and various interrupt lines (rstxx) are at sensible levels and not stopping things running.
Unless it is a very simple application, the 8085 will not be driving the CRT directly.
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