The Yamaha AN1x Synthesizer mailing list

or mouser... ;-)

but what if he isn't good with the solder iron? Jon's suggestion to take in for service would rule...

I learned a few times myself not to give out too deep a suggestion some will attempt that and have bad results... reversing the capacitor or not even knowing it's polarized, too hot a iron or leaving on the track for too long, wrong type of solder, wrong value ( you know, it's just a few numbers off..)

I do think you might be right and not one of the chips that is doing the drain...

mileage may vary...

dale
admin@...
Lancaster CA

Are you a musician that needs to promote yourself or tell everyone about your
musical event?
promotions_n_events-subscribe@yahoogroups.com
is designed just for this.

band web pages
Inquisitor Betrayer
http://www.soundclick.com/bands/7/inquisitorbetrayermusic.htm

Angel's Wings 
http://www.soundclick.com/angelswings
----- Original Message ----- 
  From: Giblet 
  To: AN1x-list@yahoogroups.com 
  Sent: Tuesday, March 01, 2005 9:02 PM
  Subject: RE: [AN1x] AN1X Battery dies after 1 month HELP!!!!! Service Guide anyone?


  This is almost certainly a defective (leaky) capzapitor in parallel with the
  battery. Capacitors leak when they're brand new and it gets worse from
  there. They'll eventually short out but that takes a good long while.

  I don't have an AN1x (I have a PLG -- the easy-teenage-new-york-disco
  version of the AN1x) so I can't tell you the location or PCB markings, but
  it will almost certainly be an electrolytic capacitor of substantial value
  (10-100ufd) and electrically parallel to the battery.

  These parts are cheaper than dirt (good dirt though) so you can't really go
  wrong replacing it as a test.

  All battery-backup systems like this work the same way, so this advice will
  also work for your PC's motherboard, your Minolta X700 happy-snap 35mm
  camera, etc.

  If someone will put up an accessible hi-res photo of both sides of the
  board, I'll tell you the most likely candidates. They're REALLY cheap at
  digikey or jameson, so it won't break your wallet to replace ALL the nearby
  electrolytic capacitors with new matching parts.

[Non-text portions of this message have been removed]