Tutorial on servicing the Canon T90?

[Andreas Thaler]

I have gained enough experience in my recent projects to be able to offer a tutorial on standard service for the Canon T90 here on PHOTRIO.

The work I recommend for every T90 (depending on the available equipment) is:

• cleaning the exterior,
• cleaning the contacts of the command wheel,
• cleaning the inside of the eyepiece,
• removing, disassembling, and cleaning the Copal S shutter (sticky damper); advantages and disadvantages shortcut
• adjusting the curtain travel times and the 1/4000 second, as well as the exposure metering (camera tester required),
• avoiding the infamous EEE error during assembly,
• removing and cleaning the battery compartment of battery electrolyte/resolving battery contact problems,
• tips on soldering and special features during disassembly/assembly,
• cleaning the release magnet (infamous blinking arrow on the LCD) and the shutter magnets (EEE error),
• replacing the memory battery,
• checking the DC/DC converter,
• troubleshooting/available technical instructions,
• other

Information about this can be found in my current posts about the T90 but perhaps there is a need for a detailed step-by-step tutorial.

As always:

All information provided without guarantee and use at your own risk