EDP - loop 4 crash?

[DialaThos@aol.com]

Hi all,

So after having bought a used EDP "months and months" ago, and having had 
to 
get the input repaired since in came to me broken, I installed the loop 4 
chips "months" ago and today finally got around to trying everything out. 

All worked fine for awhile.. till I went out of the room for a bit 
(leaving 
EDP on).  When I came back, there was a strange set of characters on the 
screen, and nothing worked on it.  Now, when I power it up, the "loop 4" 
startup sequence begins, but then the unit hangs either on an "L" or on a 
totally blank screen.  

For what it's worth, I see two slow LOOP 4 's go from right to left... 
then 
one fast from left to right.. one fast from right to left.. then an L 
appears 
on the left and we're done.  

Any suggestions?

Given the poor track record of this unit since I've gotten it.. any 
suggestions on a place to get it overhauled?

Thanks!
--Tom Griesgraber