Re: Readings  yes, memory wires should be oscillating, back and forth betw 0 and 5
volts.  this is not floating; floating implies not connected.

re: your other DL probs, usually, it is a bad connection on the PCB.
try continuity checks on the memory subsystem.  this is about 30 to 40
connections, a bit painstaking, but often it's not a bad chip, but a
bad connection on the PCB.

fred


> Fred-
>       You left it unclear in an explanation to another letter.  You were
> answering the fellow from India as to what readings one should see when usein
g
> a logic probe on the memory chip.   You said that if one was stuck at 1 or
> zero-it might be indicative of a bad chip.
> 
> Should be floating then-around 2.2 volts with power applied?  Both red and
> green lights on when useing a logic probe?
> 
> Also-I am still having downloading problems-I have had a HB that has always
> worked. Now it will not take a DL.  I have replaced all the cables.  I have
> ordered a new Maxamchip, & the three memory chips.   Had I not spent the
> amount of money I did on the HB to begin with- I would have long ago given up
.
> Cappy Anderson, Yorki, ME
> 

