Emax

Hello:
According to the Emax I diagnostics:

Preset Definition LED:
Wrote command to 1772 Floppy Disk Controller to restore head on
the drive, but the drive never reached track 0, or the 1772 never
responded.
Analog Processing LED:
Unable to load software from disk.


So, it is basically the same as for the Emax II. I should suggest you to open the unit (Of course, some basic electronic skills needed, specially about pulling out the ac power outlet and being careful to not touch the Power supply unit due to charged capacitors, also be previously grounded before touching any ic on the motherboard), and then check the wires to the floppy, both power and data, also the floppy controller IC.

Best..



--- In emax@yahoogroups.com, "xirin6" <xirin6@...> wrote:
>
>  Hello, i have found the diagnostics for the emax II and I assume that this is the same for the emax I also: My emax lights the two following lights at start up and i am unable to boot the emax any further. 
> 
> PRESET DEF. -   Turned off if the floppy controller can
>                 seek to track 00. This requires that both
>                 the floppy chip and the drive be
>                 connected.
> DYNAMIC PROC. - Turned off after a complete software
>                 boot.
> 
>  My question to the group is if the emax is exhibiting this type of behavior what are the first troubleshooting steps that I can do before shipping the emax for professional repairs? Any advise would be welcomed i would like to work on this over the long weekend and determine if I can fix this or if it needs to go to someone more capable. 
> 
> Kevin Kelley 
> Emax se hd, Emulator I, Emulator II + hd
>