[Premium-Rx] National HRO-600 help needed

[mikea]

On Sun, Mar 27, 2005 at 10:04:27AM -0800, Brooke Clarke wrote:
> Hi James:

[snip]

> I think a little work matching the number of pins and location of Vcc 
> and ground will get you to the data sheets.  Once there a logic probe or 
> scope may be all you need to find a bad IC.   The output from an AND 
> gate that has a pulsing input should be a pulsing output, but the output 
> from an OR gate with a pulsing input will only pulse when the other 
> input is high.

> If the above works for you we can discuss the meal details.

[snip]

Erm ... 

I hope that you got those swapped, because if you didn't, then my 
memory is completely gone. 

The way I remember it, the output from an OR gate is TRUE if any input 
is TRUE, and the output from an AND gate is TRUE only when all inputs
are TRUE. 

This appears to conflict with your view on the subject, and I could be 
wrong. 

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin