Repair and service information for the Contax camera. The Contax service manual gives a comprehensive list of possible causes of various symptoms and I suggest you refer to that if the cause of your problem. Contax Quartz 35mm SLR camera, Contax Q, Q. TTL metering system using a silicon photo diode, manual or aperture-priority exposure controls .

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The ISO dial plate needs to be released by unscrewing the three retaining screws and also the exposure compensation indicator arm pivot. The mirror stop is located in the mirror box arrowed in picture and the mirror rests against it when in the down position.

In later models, the magnet and associated mechanism were improved ccontax largely eliminated the problem.

Cleaning the Release Magnet The release magnet is a combination magnet common in electromechanical cameras which consists of a permanent magnet but with a coil as in an electromagnet. And so my Contax quartz was consigned to the scrap heap. I clean screens with liquid soap and water then remove all the water by spraying with IPA then blow drying the screen with an air duster.

The Contax cameras benefit from the first use of a quartz-timed, electronically-controlled, vertical metal shutters; the point being that shutter speeds were theoretically manaul accurate. If you don’t have one, cleaning the contacts with isopropyl alcohol IPA does almost as well. Any conrax marks, possible caused by perished mirror damper foam, can usually mahual removed but the screen should be completely removed from the camera first.

Shutter Curtain Bounce Catch There is one issue I have experienced with the shutter on a couple of occasions but the symptoms can vary. Unscrew the collet using a wrench. Check the switch moves freely when the top cover is refitted conax, if not, try again or use a thin tool through the ISO dial hole to move it into place.

There is a plate either side of the lens mount that can be removed. The above can be done with the shutter still in the camera once the mirror box has been removed but below is how to remove the shutter if you need to. Now remove five screws holding the top cover in place. Clean the spring contacts contaxx also the mating contacts on the rear of the PCB which is attached to the back of the front plate.



Contax – – The free camera encyclopedia

Front facing body LED flashes to indicate operation, accelerating 2 seconds before shutter is released. Baseplate Not a lot to say about this. Unscrew the two black screws under the lens mount. These are the ones that got away.

Contax 139Q

But be aware, if looking for a high serial number unit, there’s evidence that some baseplates with high serial numbers on them were used as replacement parts so the camera may not match the serial number.

The ISO contact plate assembly has three metal disks mounted over it. Electrical contacts are always a potential source of problems. Via crank and release button. Silver-coated prism with horizontal split-image spot, surrounded by a micro-prism collar.

The white alignment mark points towards the prism. Mznual Stop and Focus Errors The mirror stop is located in the mirror box arrowed in picture and the mirror rests against it when in the down position. There’s more information in the service manual regarding which adjustment screw to turn to move the LEDs in a given direction.

I recommend a glue such as Evo-stick as it allows the holder to be removed again if needed in the future. The release is under the mirror box but can be accessed without too much manuall. These were, at least contwx part, to overcome some reliability manial with early examples. The mirror can be separated from the carrier using a thin, long bladed knife which should be inserted between the mirror and the carrier and worked side to side gradually cutting through the tape.

User Guide for Contax Camera, Free Instruction Manual

Work your way around to lift all four corners. There is no known serial number data for the but available information shows the magnet problem was corrected in cameras with serial numbers above, approximately,Press down the cover working towards the corner of the camera.


The other symptom can be that the mirror fails to return. With the rewind knob removed, unscrew the three screws in the shutter speed dial and lift off the dial.

It is the bottom screw to adjust focus. To refit the memo holder, clean up the plastic rivets that will have pulled through the holes. Over time, the face of the magnet becomes fouled and the armature becomes stuck to it so fails to move away when the magnetic field is turned off.

The problem is with the catch that catches the second curtain at the end of its travel to stop it bouncing. Electrical Contacts Electrical contacts are always a potential source of problems. The shutter release switch consists of a domed metal disk sitting on a printed circuit board.

Next remove the rewind knob. There is one screw holding it in place. Refit the cover to the magnet before reinstalling the mirror box. This will stop it from turning so that the knob can be unscrewed.

The mirror box can now be pulled forward. While you have the soldering iron in your hand, also desolder the brown wire mqnual comes up from the flash socket. Exposure compensation is manuual and can be conatx by over or under 2 EV. The shutter magnet not the release magnet is also under this plate if you need to access it.

Making sure the back is slightly wet makes a big difference here because you need to mxnual the cover into place. Note that the catch needs to be tight for it to work correctly just not too tight.

The stop has a rubber maybe plastic piece around the end of it for the mirror to rest against and this can sometimes come off.