http://launch.groups.yahoo.com/group/yamahablackboxes/ Yamaha Black Boxes Wed, 18 Nov 2009 19:38:28 GMT Paul http://launch.groups.yahoo.com/group/yamahablackboxes/message/777 http://launch.groups.yahoo.com/group/yamahablackboxes/message/777 Hi Peeps it looks like a Tyco FSM4JH or something like it. Newark/Farnell stock a range. Cheers Paul Wed, 18 Nov 2009 16:46:36 GMT Bim http://launch.groups.yahoo.com/group/yamahablackboxes/message/776 http://launch.groups.yahoo.com/group/yamahablackboxes/message/776 I get alot of the switches I need for these older keyboards from Mouser.com. In both their catalogs and online they have pictures and measurements of the Wed, 18 Nov 2009 16:35:45 GMT GB http://launch.groups.yahoo.com/group/yamahablackboxes/message/775 http://launch.groups.yahoo.com/group/yamahablackboxes/message/775 ... Correction: http://www.seeedstudio.com/depot/ GB Wed, 18 Nov 2009 14:07:40 GMT GB http://launch.groups.yahoo.com/group/yamahablackboxes/message/774 http://launch.groups.yahoo.com/group/yamahablackboxes/message/774 Thanks to all for the leads. It looks like E-switch and Omron both make one that will work. Here is a page with a few varieties and good pricing: Wed, 18 Nov 2009 10:55:20 GMT narfman96 http://launch.groups.yahoo.com/group/yamahablackboxes/message/773 http://launch.groups.yahoo.com/group/yamahablackboxes/message/773 Hi Grant, For the 4 leg switches I used Jameco 153251. There are data sheets available so you can check them for fit. I must have put over a hundred of these Wed, 18 Nov 2009 10:54:25 GMT narfman96 http://launch.groups.yahoo.com/group/yamahablackboxes/message/772 http://launch.groups.yahoo.com/group/yamahablackboxes/message/772 Jason, Awesome info page! You've been helping me with manuals and info for a while now. Like the Ensoniq VFX-SD... Thank you and please keep up the great work. Wed, 18 Nov 2009 06:07:11 GMT GB http://launch.groups.yahoo.com/group/yamahablackboxes/message/771 http://launch.groups.yahoo.com/group/yamahablackboxes/message/771 I'm on the last few items of a major DX27 restoration. I have a couple of panel switches that don't work and I don't know where to get replacements (in the Wed, 18 Nov 2009 02:44:19 GMT xangis http://launch.groups.yahoo.com/group/yamahablackboxes/message/770 http://launch.groups.yahoo.com/group/yamahablackboxes/message/770 Howdy YBBers, Over the past year or so I've been trying to build a public archive of datasheets and info for synth and soundcard-related sound chips. What I Mon, 16 Nov 2009 04:23:25 GMT Mark http://launch.groups.yahoo.com/group/yamahablackboxes/message/769 http://launch.groups.yahoo.com/group/yamahablackboxes/message/769 SOLVED! Thanks a lot, I changed both of the 1000uf caps for good measure, I had a few laying around, and they're better quality too, rated a bit higher in the Sun, 15 Nov 2009 23:12:36 GMT Alan Probandt http://launch.groups.yahoo.com/group/yamahablackboxes/message/768 http://launch.groups.yahoo.com/group/yamahablackboxes/message/768 Hello,   Do you have an oscilloscope?  If not then try downloading one of the programs that use the PC sound card as a scope.  These programs sample at Sun, 15 Nov 2009 21:11:49 GMT jammie http://launch.groups.yahoo.com/group/yamahablackboxes/message/767 http://launch.groups.yahoo.com/group/yamahablackboxes/message/767 check the voltages to the parts all ic,s like i said what is the votages to these items you still did not give the measurements 15vdc/0v/ -15vdc +5vdc gnd or Sun, 15 Nov 2009 18:19:30 GMT Mark http://launch.groups.yahoo.com/group/yamahablackboxes/message/766 http://launch.groups.yahoo.com/group/yamahablackboxes/message/766 NEW DEVELOPMENT! I started to think outside the synth board itself and immediately disassembled my other working TX81Z. I stuck the working synth board in the Sun, 15 Nov 2009 12:27:37 GMT jammie http://launch.groups.yahoo.com/group/yamahablackboxes/message/765 http://launch.groups.yahoo.com/group/yamahablackboxes/message/765 check polarity between the tracks of the ic10 and the dac as you stated that the old opamp worked but the new one didnot it might be a damaged or craked pcb Sun, 15 Nov 2009 10:52:30 GMT narfman96 http://launch.groups.yahoo.com/group/yamahablackboxes/message/764 http://launch.groups.yahoo.com/group/yamahablackboxes/message/764 Have you tried a reset from the internal test program? How about shutting off the FX setting? Failing that I would blame a dropped bit in the ops chip. Sun, 15 Nov 2009 06:36:38 GMT Mark http://launch.groups.yahoo.com/group/yamahablackboxes/message/763 http://launch.groups.yahoo.com/group/yamahablackboxes/message/763 Well, I'm about to give up. I stuck the new DAC in the TX81Z and... nothing. No change in the sound. Still that annoying static burst. I'm going to change that