This is a new video with updated information on how to install the supply upgrade in the TS-930.
This is the latest video about uninstalling the old supply and then re-installing the new one in your TS-940. This video was added June 2020
Here is a video to give you some options on connecting the power supply to AC power
This video outlines how to install new backup batteries in the TS-940.
An easy way to make sure the new supply will work
An introduction to the TS-940 Power Supply upgrade.
How to remove the original power supply