Emax

Thanks for your answer Tristan,
I do have another Emax rack working. So I guess I have to test it with that one.
Hopefully it's something else than the Scanner MPU itself. I'll try what you suggested.
 
Thanks,
Marko

--- Den lör 2008-06-21 skrev Tristan <tu@...>:

Från: Tristan <tu@...>
Ämne: Re: SV: [emax] Re: Problem with Scanner MPU?
Till: emax@yahoogroups.com
Datum: lördag 21 juni 2008 11.09






Hi Marko,

The problem you have here is that the 6500/11 scanner MPU in your Emax
has been mask programmed at the factory. Unless you can find a spare
chip with the correct Emu software in the ROM then you are out of
luck. I expect Emu did a bulk order of these back in the day but they
are now long obsolete. I believe the same chip was used in the EIII,
Emax and Emax II. If identical software was used on the scanner chip
for all these samplers then it is likely that some Emu service agents
may still have spares.

The first thing you should determine though is whether the 6500/11 is
actually the problem. The fault could just be an oxidised chip socket
or something else entirely. Either getting another working Emax or
getting together with someone who has one would be the simplest
solution. Then you can swap the chips between the two machines and see
if that fixes the problem. You would be better off trying your 6500/11
in the working Emax just in case your Emax is doing something that
killed your chip.

If you are not confident with diagnosing and repairing electronic
equipment then it would be better to get a tech to do it for you. And
always observe static safety, for every dead 6500/11 another Emax dies
:(

-- 
Best regards,
Tristan

Saturday, June 21, 2008, 4:28:05 PM, you wrote:

ML> I don't like to do that (not yet anyway) because it's in very
ML> good condition otherwise, and I feel it's worth a try to make it work.

ML> --- Den fre 2008-06-20 skrev Rei <vjrei@yahoo. com>:

ML> Från: Rei <vjrei@yahoo. com>
ML> Ämne: [emax] Re: Problem with Scanner MPU?
ML> Till: emax@yahoogroups. com
ML> Datum: fredag 20 juni 2008 22.51

ML> I would get another rack and canibalize it, is faster and cheaper. I just got an Emax II
ML> keyboard and that is what I am planing to do for parts. 

ML> --- In emax@yahoogroups. com, "markolaukka" <markolaukka@ ...> wrote:
>>
>> Hello All,
>> 
>> Recently I bought a defected Emax rack.
>> It loads the disc but after that it hangs, and it won't respond to any 
>> of the frontpanel buttons, i.e. nothing more happens.
>> Now, I have the tehcnial manual and it says that if the instrument load 
>> the software but nothing more happens it's the scanner CPU/MPU that are 
>> broken and needs to be replaced. As far as the manual say it's an 
>> Rockwell 6500/11 microcontroller. Does anyone knows where I can find 
>> one of these microcontrollers? I've been searching the net all day 
>> without any result.
>> 
>> Any help would be much appreciated!
>> 
>> Thanks in advance
>>

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