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Old 14th Sep 2017, 9:18 am   #17
JohnBHanson
Heptode
 
Join Date: Aug 2009
Location: Worthing, Sussex, UK.
Posts: 662
Default Re: Help with 6802 Microcontroller

Just got the circuit diagram. Worth checking the clock is ok - look at pin extal and check it is a stable waveform with no glitches. Looks like the microprocessor is clocked
via T2 transformer and the 'range' led used to check the clock is ok. Very strange
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