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

On Apr 5, 2012, at 8:22 PM, "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
> 
>

So what were the 3rd and 4th ROM you added?

Also, I am sure there are some internal fuses in the command station, maybe mis-seating took out a fuse (hopefully not a chip).....

Bob

El Segundo, CA

Sent from my iPad

On Apr 5, 2012, at 8:22 PM, "RickReid" <rickreidvo@gmail.com> 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

----- Original Message -----

From: RickReid

To: xl7@yahoogroups.com

Sent: Saturday, April 07, 2012 12:40

Subject: [xl7] Re: Just got an XL-7 recently & it's already fried?!

Thanks for the replies. I'll check on the repair resource.

The ROMs that worked okay were the include Xtreme Lead and the Techno ROM. The new ROMs I was trying to add were Composer, which seemed to work okay and a 9090 Orbit ROM which gave me an error message about having two ROMs with the same ID, or something like that.

I think were I probably screwed up -- besides not understanding how to easily install the ROM cards, was that I probably left the AC power plugged in and turned on at some point, by mistake, because I was testing each ROM in different sockets to troubleshoot why they weren't all working when installed at the same time.

I really, really want this thing to work for an upcoming live theater production I'm involved with. So I went ahead and bought another XL-7 from eBay. That will give me some time to get this one fixed, if possible, then I'll keep it as a backup or re-sell it. The one I just bought already has the operating system upgraded. So, I won't have to mess with that.

Ouch! That was an expensive goof!

Rick Reid
http://www.rickreid.com

>
> 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
>

On Apr 8, 2012, at 9:25 AM, "Dumeril" <dumeril7@...> wrote:

> 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
> >
> 
>

>
> Sure, this might have happened but specifically, it was the Orbit 9090 ROM that would have blown the main board, this has been documented and occurred before with others.  Search "rom damage" in our message database and see what you should not be doing....
> 
> Bob S.
> El Segundo, CA
>

>
> Thanks for the info.  I will definitely do more research before sticking things in my musical instruments from now on!
> 
> Rick Reid
> http://www.rickreid.com
> 
> 
> --- In xl7@yahoogroups.com, "Bob S." <tttsystems@> wrote:
> >
> > Sure, this might have happened but specifically, it was the Orbit 9090 ROM that would have blown the main board, this has been documented and occurred before with others.  Search "rom damage" in our message database and see what you should not be doing....
> > 
> > Bob S.
> > El Segundo, CA
> >
>