I'll keep this brief:
Information on finding and fixing mechanical and electronic faults can be found in the technical documentation already mentioned (see part 5 of our series „Where can I find information on repairing specific cameras?“).
These are primarily SPT Journal, manufacturers' repair manuals, C & C Associated Troubleshooting Guide, and The Camera Craftsman.
Unless you already have experience repairing a specific electromechanical SLR or are a gifted troubleshooter, you have little chance of success without instructions.
Tinkering around is pointless
This is also because virtually all problems can only be fixed after more or less extensive disassembly of the SLR. Whether a repair has been successful can only be determined after reassembly and a complete functional test. This is time-consuming, so tinkering around is pointless. Fortunately, professional instructions are available to guide you through the process.
Measurements via easily accessible measuring points
In many cases, electronic problems can be localized by taking measurements on the circuit board. There are measuring points available for this purpose, which can be easily accessed after removing the covers. Using a multimeter and oscilloscope, you can take measurements according to the instructions and thus narrow down the fault.
Often, it is just contact problems with switches and contacts
that can be easily remedied by cleaning. Apart from electrolytic capacitors, electronic components are stable and should not age.
Spare parts
can be taken from SLRs of the same type. Solid soldering knowledge and skills are important; see also our tutorial.
Limits
In principle, any mechanical or electronic fault can be repaired, but there are limits; see part 4 of our series "What can I repair myself, and what can't I?"
It is not always possible to fix a fault
Reasons for this may be that the effort involved is too great, that no spare parts are available, or that your own knowledge and skills are not yet sufficient. Skill comes with experience and practice.
Examples of troubleshooting can also be found in my repair reports on electromechanical SLRs; see on PHOTRIO and photo.net.
This brings us to the end of our how-to guide. Part 8/8 provides a summary.
I hope this workshop has helped you with your repair projects or inspired you to get started with DIY!
Good luck!
+++
A word of cautionPlease keep in mind that you’ll be using highly flammable solvents for service work, and their fumes are harmful to your health. Soldering also produces fumes that should not be inhaled. Dangerous high voltages can be present when handling electronics, especially in conjunction with electronic flash units and mains. Therefore, familiarize yourself with the safety regulations beforehand and ensure your safety. Depending on the activity, protective gear may be advisable.
All information provided without guarantee and use at your own risk.
Last edited:
