e57babbb   
   On Sun, 26 Dec 2010 21:26:37 -0800 (PST), kreed   
    wrote:   
      
   >On Dec 27, 1:21 am, Andy Bilton 835a...@collectingbanter.com> wrote:   
   >> Hi all,   
   >>   
   >> First off Merry Christmas 2010 to all on the forum!   
   >>   
   >> I have a problem with my NSM Peformer Classic. Comes up with error   
   >> messsages on switch on so I program it to fix the error only problem is   
   >> when machine is switched off and back on again machine seems to 'forget'   
   >> that I fixed the problems. Also machine can't seem to 'remember' that I   
   >> have it programmes for freeplay.   
   >>   
   >> I've done nothing drastic to it so I'm figuring that something's wrong   
   >> with the memory on the machine. I can find no battery so I'm figuring   
   >> this type of jukebox does not have a battery backed up memory but I   
   >> can't find anything about memory in the manual (which I have).   
   >>   
   >> Does anyone have any ideas what kind of memory system the NSM Performer   
   >> Classic uses and how I can resolve issues with it please?   
   >>   
   >> Many thanks   
   >>   
   >> Andy   
   >>   
   >> --   
   >> Andy Bilton   
   >   
   >Typically a 5101 or a 6116 / 6264 Ram are used in games / jukes for   
   >this purpose, but I don't know what NSM use.   
   >   
   >   
   >If there is no battery or chip as listed above - it could have an "e   
   >squared" memory. These would typically be an 8 pin IC. These are   
   >FLASH type memory, and dont need a battery. They do wear out after   
   >about 10,000 writes (especially older ones) though and start to fail.   
   >These were also used on "off road" and "Lethal Enforcers" games and I   
   >have replaced this IC on both these games due to failure. (off road   
   >died as in one location they were forever setting new high scores and   
   >we believe this is what nuked the chip)   
   >   
   >Considering that if it holds coin and popularity data - its extremely   
   >likely that these RAM locations would be incremented (written to)   
   >every time a coin is inserted, or a selection is played, or a setting   
   >is changed. If there is an "hours on" or "number of times turned on"   
   >function - then these would be written in addition every hour or every   
   >time the machine is turned on. It is also possible that multiple   
   >data locations are changed with each operation (several writes) if   
   >they have a checksum or other method of detecting corrupt data.   
   >   
   >   
   >The other alternative that was popular was a "Dallas" chip.   
   >These were a rectangular block that sits higher than a ROM and had   
   >battery and ram enclosed inside this block. If faulty you will likely   
   >need a new one as the battery is sealed inside. They should have   
   >"Dallas semiconductor" written on them.   
   >   
   >You may be able to cut the top of the thing open and find and replace   
   >the battery - (from memory its in the upper part of the chip) but   
   >there is a risk of rendering it unusable.   
      
      
   The Performer series have a NVRAM chip with integral battery. It   
   sounds like this battery has come to the end of its life. This is   
   more and more common for these jukes at the age they are. It needs to   
   be replaced (note you will have to reprogram when you put the new one   
   in). It is located on the Centrale board (front of stack on back wall   
   of juke). I don't remember the location number, but is should be   
   obvious as it is a "thicker" chip than all the others.   
      
   Happ Controls have these(look under jukeboxes/parts/NSM, etc.), as   
   will any other distributor that handles NSM parts. I believe it is   
   the same chip for ES IV and ES V series (Classics are ES V if I   
   recall). ES IV have white player boxes and ES V have black player   
   boxes.   
      
   I am not aware that anyone has successfuly replaced a battery in these   
   chips, but somebody may have. The new replacement costs about $60 to   
   $70.   
      
   On location, these jukes can be left on 24/7, until a new NVRAM chip   
   can be installed, but this may not be a viable option in home use.   
      
   Irwin   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   
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