Carlos, here's the good news, looking at the manual has jogged my memory as to problems I've had with flash on the MX. Here's the bad news, they're not fond memories. :-( There are 3 things involved in "X" sync on the MX: 1. The little connection board behind the M and X PC sockets. 2. The M sync switch. 3. The X sync switch.
All of these are located behind the lens mount and can be accessed readily if this is removed. Unfortunately this means removing the bottom cover (easy), the top cover (not easy) and the leatherette (easy). If you wish to be adventurous I'll be happy to post a link to the service manual in PDF format. It's not a great deal of help though, Pentax SM's assume that you already know "how it works" and are just a basic guide to adjustments, wiring, and such. Don > -----Original Message----- > From: Don Sanderson [mailto:[EMAIL PROTECTED] > Sent: Sunday, May 22, 2005 7:37 AM > To: [email protected] > Subject: RE: MX hot shoe inoperative > > > Carlos, I'll look at the Service Manual to see what the next > step would be. (Since you're an experienced Pentax tech now.) > ;-) > I wish I had one to look at but I don't right now. > > I do have one question though, pardon me if it's a dumb question. > (I don't know how experienced you are with cameras.) > Are you aware that the 360FGZ is NOT meant for older cameras? > It has an "Auto" mode that might work on them but this is the > only mode that might. The other modes are meant for digital > communication with the camera body. > The Vivitar 285 should work on the MX's fine though. > > I'll get back to you when I've looked at my (poorly copied) > manual. > > Don > > > -----Original Message----- > > From: Carlos Royo [mailto:[EMAIL PROTECTED] > > Sent: Sunday, May 22, 2005 7:23 AM > > To: [email protected] > > Subject: Re: MX hot shoe inoperative > > I have been able to disassemble, clean and reassemble the hotshoes of > > both MXs thanks to your detailed instructions, Don. > > But the "old" (silver) MX doesn't want to fire the flash like it did > > last week, and the "new" (black) MX has improved a little: now it fires > > the flash at the very first try, but to fire a second or third flash you > > need to switch off and on the flash unit every time you want to > use it (?) > > Thanks again for your instructions, it has been very educative to > > disassemble the thing without any problems, and I even managed to do it > > without breaking anything. Amazing! > > > > Carlos > > >

