I too work on older Pentaxes, but your questions are a bit outside the scope of what e-mail can handle. There is however a wonderful collection of service manuals provided by one of our generous list members, Mark Roberts. It can be found here: http://www.robertstech.com/pentax.htm
HTH Don BTW: Thanks again Mark! ;-) > -----Original Message----- > From: Grunt [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 18, 2006 12:55 PM > To: Pentax-Discuss Mail List PDML > Subject: MX mirror sticking > > > Hello, > I have recently become a Pentax M-series collector... on a budget. I have > made some very nice purchases and some less successful, so I will be using > this forum as a resource to try to transform some of my parts cameras into > working collectables (see recent post on 2 MGs). > > My latest buy is an MX advertised as used working condition, but when I > tried it the mirror sticks up at speeds of 1/60 and less. At 1/125 and up > everything seems OK. > I believe I read somewhere that there are separated mechanisms > involved for > these speed ranges which would seem to give an idea of where to start > looking. What are the first things to check, and what are the chances of a > generally mechanically competent beginner to solve the problem? > > A second observation is that the light meter LEDs are unstable, > like a dirty > or loose connection perhaps. They seem to indicate a reasonable > reading and > respond normally to the speed and f-stop adjustments - then they flicker a > bit. If I tap the camera with my hand that seems to set them off. > Any ideas > on what I should check/clean/tighten? > > I also have an ME F with the original SMC Pentax AF 35-70/2.8 lense, which > does not do any of the AF things they are supposed to do... but that's > another project for another post. > > Thanks again, > Grant H >

