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4
Using the Programmer
Before attempting to update the firmware, use the SCU-20 PC Connection Cable and install the
driver software.
Then go to the website (http://www.yaesu.com/) to download and install the SCU-20 driver.
When the programmer is opened on the computer, press the [Update] button to display the preparation
procedure screen, which explains the firmware installation process. Follow the procedure below.
Installation of the RX-UNIT firmware
1. Remove the 15 screws from the top cover and then remove the cover.
RX-Unit