Definitely a cap replacement. I've been through this before lol.... Speaker's fine. Just wanted to know what caps I could avoid having to recap at this point.
On Thu, Sep 1, 2011 at 4:23 PM, Doug McNutt <dougl...@macnauchtan.com>wrote: > At 08:18 -0700 9/1/11, GuyWithGuitars wrote: > >Can someone tell me definitively which capacitor(s) (c1, c2, c3, etc) > >are for the audio on a Mac SE/30? I have an SE/30 that is running > >great except for the audio. There is no audio. > > > >I made an attempt some time ago to replace all the caps and ended up > >jacking an SE/30 board by pulling up a solder pad. > > > >I received a replacement board and would like to try again with a > >different technique, some high quality solder and flux but I don't > >want to recap the entire board (yet) > > C6, the little one, is in the audio circuit. All of the others are bypass > caps on the +12 and +5 volt power busses. > > But bad C6 is more likely to first create distorted audio before the audio > disappears completely. > > I have had more instances of a bad connection at J6 where the speaker plugs > in. Is the red and black pair in good shape? Can you hear a click if you > touch the speaker wires to a 1.5 volt dry cell momentarily? > > Have you tried the phone jack? When something is plugged into that jack the > speaker should shut off. It might not turn back on when a plug is removed. > > And it's also possible that one of the other caps has leaked onto the > circuitry on the board that is for audio. Washing is always worth a try. > > -- > --> If it's not on fire it's a software problem. <-- > > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to > vintage-macs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
