Emax

Richard,

Thanks for your answer :-). I found the diagnostics doc at the emulator archive. After some more testing, i managed to make the Emax II keyboard boot normally but it hangs after 4 or 5 seconds. Sometimes it shows garbarge at the LCD, some others it just stop respondig or all lights turn on. Since both mainboards work ok when not swapped i suppose i'm out of luck and somehow the MB of my KB and the MB of my Rack are incompatible. :-( 

--- In emax@yahoogroups.com, "Rish" <rish@...> wrote:
>
> Diego
>       I was once told by an Emu tech that the lights lighting up by each button are codes, certain buttons with light up for different issues. I believe if you pull a cable or disconnect the display or floppy drive on a normally working unit...at boot you will see certain button lights lit that corresponds to the issue.
> Wish i had a cheat sheet on it.....
> 
> Richard at Route 66
>   ----- Original Message ----- 
>   From: dhpb1973 
>   To: emax@yahoogroups.com 
>   Sent: Saturday, October 10, 2009 12:16 PM
>   Subject: [emax] Mainboard swapping
> 
> 
>     Hi,
> 
>   I have an Emax II Keyboard with 2 MB and an Emax II rack with 8 MB. Both work fine. I tried to swap mainboards but the keyboard doesn't boot with the rack MB. The upper line of the display shows black squares and all the buttons lights turn on. If i swap them again both Emaxes keep working. I noticed that the keyboard MB has an RN6 chip that the rack one doesn't have (the socket is empty on the rack MB). Any ideas of what that chip does ? Anyone knows which is the chip that store the sound memory size ? 
> 
>   Thanks,
> 
>   Diego
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>