Emu XL-7 & MP-7 User's Group

I will bet that something got damaged when power was run thru it with a card not fitted properly.  An electronic circuit is dependent on components being where they're designed to be and bad things can happen when they're not.  (As an aside, there used to be a computer company called Tandem whose claim to fame was fault tolerance of their computers.  For demos, they used to walk up to a running computer and pull boards out of them and the computer would keep churning along as if nothing happened.  On a non-fault tolerant computer, that would kill it.)  Anyway, I think you'll need to have the Command Station serviced.  I would check the fuse on the power supply; its possible that the fuse blew to save the board which would be great.  I know that EPR works on E-mu stuff (http://www.eprelectronics.com/).

Good luck!
D7

--- In xl7@yahoogroups.com, "RickReid" <rickreidvo@...> wrote:
>
> Hi, All!
> 
> I am a new member to the group.  I need some advice.  
> 
> I bought an XL-7 in perfect condition a couple of weeks ago.  I added a second ROM card and everything was fine.  Today, I tried to add a third and fourth ROM card and had troubles getting the unit to work again.  I was having some difficulty getting the ROM cards seated, so it is possible that I may have accidentally shorted something out.  At first, the display and all buttons were unlit, but there was a faint clock sound from the headphones.  Now there's no sound either.  
> 
> Taking out the new ROM cards didn't solve the problem. Changing their position in the 4 slots didn't help either. I've checked to make sure all cables are seated, etc.  The only thing I could find that looked suspicions was some white residue around one of the smallest IC chips.  I honestly don't know if the residue was already there before I began tinkering or not.  Also, there's one mid-sized IC socket near the middle of the board that has no IC plugged into it.  Again, I don't know if it was already like that before I installed the ROM cards.
> 
> Do any of you have troubleshooting suggestions?  If not, is it cost effective to have an XL-7 repaired?  Any idea who can repair them?  Would I be better off just buying another one?
> 
> Thanks for any help you can provide.
> 
> 
> Rick Reid
> http://www.rickreid.com
>