FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   PreferencesPreferences   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Forum index » Electronix » Repair
NEO GEO Work Ram Error
Post new topic   Reply to topic Page 1 of 1 [1 Post] View previous topic :: View next topic
Author Message
electronics forum beginner

Joined: 13 Oct 2005
Posts: 24

PostPosted: Tue Jul 04, 2006 12:26 am    Post subject: NEO GEO Work Ram Error Reply with quote


I am working on SNK Neo Geo 4 slot coin op arcade board. It comes up
with a "Work Ram error" when it boots. I have checked all of the work
ram using a Huntron and another similar system comparing the results to
a known working unit but I can't find any problems. I have a few of
these boards with these kind of problems. I am thinking that it might
be that a trace is broken or shorted, more likely broken. And here is
my question. If a trace is broken on one of these 26 pin SMD RAM chips
wouldn't there be some kind of sign when checking the pins on this RAM
chip? Wouldn't the broken trace show some kind of non-loading? Since
it was tied to something and now it is not using a ?? with the power
off? wouldn't there be a method of locating the open? The traces are
complex going from one side to the other and very hard to check on the
7, 26 pin chips. Is there a easy way to check for an open on this kind
of problem?

Back to top

Back to top
Display posts from previous:   
Post new topic   Reply to topic Page 1 of 1 [1 Post] View previous topic :: View next topic
The time now is Wed Jan 16, 2019 12:56 pm | All times are GMT
Forum index » Electronix » Repair
Jump to:  

Similar Topics
Topic Author Forum Replies Last Post
No new posts Audio amplifier circuit does not work as expected CHINGUETAS Basics 7 Mon Jul 17, 2006 5:43 pm
No new posts Forrest Mims Audio amplifier circuit does not work.. chriswilliams Basics 10 Wed Jul 12, 2006 7:34 pm
No new posts Protel unknow error: Duplicate Net Names Matt cad 2 Mon Jul 10, 2006 1:50 pm
No new posts Sr. level pcb designer looking for work as a captive desi... Carl Goldenbusky cad 3 Sun Jul 09, 2006 4:24 pm
No new posts Error Code on Pixma MP150 col.macd@googlemail.com Repair 1 Fri Jul 07, 2006 2:47 pm

Copyright © 2004-2005 DeniX Solutions SRL
Other DeniX Solutions sites: Unix/Linux blog |  Unix/Linux documentation |  Unix/Linux forums |  Medicine forum |  Science forum  |  Send and track newsletters

Powered by phpBB © 2001, 2005 phpBB Group