Electronics
44 posts tagged Electronics. Search within these →
RB67 C Lens: PC Flash Terminal Plastic Liner Problems
I'm doing a replacement of a PC terminal today on a Mamiya RB67 C lens and thought that I would pass along some little known info. Initially, Mamiya added…
Mamiya 6/7 and RZ67: Why There Are No In-Between Shutter Speeds
I've been asked why some cameras will not produce an in-between shutter speed on the shutter dial. While mechanically controlled shutters have their own…
RZ67: Shutter Not Releasing from Blown Diode and Capacitor
This RZ67 came into the shop with the complaint that it would not release the mirror/shutter. First thing to do is check if it is operational on the…
Mamiya 7II Battery Cover: Metal vs Plastic Top Versions
This post is about a bit of minutiae regarding the Mamiya 7II that I have not seen addressed before. From the beginning of production in April 1999 until…
RB67 C Lens: Flash Sync Socket Replacement
The most common solution when an RB67 C lens will not fire the flash is a sync socket replacement. In this case, I replaced the socket, the socket holder…
Mamiya 7 65mm Lens: Replacing a Broken Flex Cable
This Mamiya 7 65mm lens came into the shop with a very common issue: broken flex cable. This cable connects the shutter to the camera connection pins on…
Mamiya 6: Battery Drain From a Loose Metal Part
This Mamiya 6 came into the shop with a complaint of a broken frame finder glass and problems with the battery not making connection. On initial…
Mamiya 7: No Finder LED Display After Impact Damage
Interesting repair on a Mamiya 7: the camera was impact damaged and the obvious sign was the damaged battery compartment. The complaint was that the LED…
Mamiya 7II: Replacing the Cable Release Socket
Replacing the cable release socket on a Mamiya7II. Mamiya made a major change in the cable release socket from the model 7 to the model 7II. On the Mamiya…
RZ67: Wind Lever Locked After Electronic Release
Working on an RZ67 with a release issue. Actually, in this case, the issue was that the shutter would release electronically, but the wind lever would…
Mamiya 645 1000S: Corroded Battery Compartment and Broken Latch
This 645 1000s came into the shop for the typical slow film counter return and shutter calibration (I have documented the counter return issue on a…
Canon A-1: Mirror Squeal and Mg2 Magnet Self-Release
Servicing a Canon A-1 body. Most of the Canon A-1 bodies that I see these days need light seals and/or lubrication of the mirror retarding gear. Light…
Pentax Spotmatic F: Prism Foam and Meter Wiring Repair
Servicing a Pentax Spotmatic F. Photo three shows the prism removed and the deteriorated foam on the prism and the prism housing. This is what can come…
Mamiya 645AF 80mm AF Lens: Broken Aperture Ring Gear
Servicing a Mamiya 80mm AF lens for 645AF cameras. Had to replace a broken plastic aperture ring gear. The diaphragm in this lens is electrically…
RZ67: Dead Electronic Release, Burned Diode and Moisture Damage
Repair on Mamiya RZ67. This RZ67 came into the shop with mechanical release working, but electronic release inoperative. After removing one of the side…
Mamiya 645 Pro: Battery Drain Caused by a Loose Spring
This has been a week of Mamiya 645 Super/Pro repairs. I have serviced a lot of these cameras and this is the first time seeing this issue: camera (645 Pro)…
Mamiya 645: Water Damage and Battery Drain, Not Worth Repairing
A Mamiya 645 came into the shop with a list of issues: shutter stuck open, battery drain, finder not fitting properly, light seals deteriorated. On…
Mamiya 7II 80mm Lens: Testing the Flex Cable for Meter Problems
A Mamiya 7II w/80mm lens came into the shop with a complaint of the light meter not working properly. First thing I check is the lens as they often have…
RZ67: Testing the Internal Switches
The Mamiya RZ67 models are complex electro mechanical cameras that really benefit from having the proper test equipment for troubleshooting. There are nine…
Minolta HIT System: Game Boy Service Diagnostic Cartridges
This is something that I’ve been sitting on for a long time. The Minolta HIT system was a diagnostic tool set used by authorized Konica-Minolta…