Yaesu FT-790R display/error code - UK Vintage Radio Repair and Restoration Discussion Forum

Raymond387 · 25th Jan 2020, 7:17 pm

I have recently purchased a used Yaesu FT-790R which appears to work but the main LCD display occasionally shows the letter "E" and nothing else.

It usually occurs when switching to FM mode.

It can be cleared by twiddling knobs and pressing buttons after which the normal frequency display and functionality is restored.

Does anyone have any idea clues as to what this indication means? I can't find any reference to error codes in the manual.

Thanks, Ray

Jon_G4MDC · 26th Jan 2020, 11:23 am

There is a reset procedure in the user manual to use after the back up battery is replaced.
I wonder have you been through that? Have you changed the battery?

Good luck.

25th Jan 2020, 7:17 pm	#1
Raymond387 Diode Join Date: Jan 2020 Location: Wells, Somerset, UK. Posts: 2	Yaesu FT-790R display/error code I have recently purchased a used Yaesu FT-790R which appears to work but the main LCD display occasionally shows the letter "E" and nothing else. It usually occurs when switching to FM mode. It can be cleared by twiddling knobs and pressing buttons after which the normal frequency display and functionality is restored. Does anyone have any idea clues as to what this indication means? I can't find any reference to error codes in the manual. Thanks, Ray

26th Jan 2020, 11:23 am	#2
Jon_G4MDC Nonode Join Date: Nov 2015 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 2,015	Re: Yaesu FT-790R display/error code There is a reset procedure in the user manual to use after the back up battery is replaced. I wonder have you been through that? Have you changed the battery? Good luck.