FT-7800 problem

[KB9WPC]

Hi, I just noticed a problem with my 7800. No matter which way that you turn the dial, the radio only will go up channel or will move up in the menu, never down. I have reset the radio several times, but to no avail. Is there a master reset? Or is this a clue that it needs to go in the shop? Thanks
Dave

 

[canav844]

I found this

FT-7800R OPERATING MANUAL 63
In the event of erratic operation of the transceiver, it is possible that data on the microprocessor
may have become corrupted. While this is a highly unusual situation, the only path ro
recovery may involve resetting of the microprocessor. Here’s how to do this:
1. Turn the radio off.
2. Press and hold in the [MHz(PRI)] key while turning the radio on.
3. Rotate the DIAL knob to select the resetting menu:
F-1 SETRST: Resets the Set (Menu) mode settings to their factory defaults.
F-2 HYPRST: Clears the Hyper Memory settings to factory defaults.
F-3 MEMRST: Clears the Regular Memory settings to factory defaults.
F-4 MB RST: Clears the Memory Bank Assignment.
F-5 ALLRST: Clears all memories and other settings to factory defaults.
4. Press and hold in the [BAND(SET)] key for 1/2 second to complete the reset procedure,
once you have made your selection in step 3

Here: no modulation on new FT-7800R - QRZ Forums

If it's a setting thing that might be what does it.

 

[KB9WPC]

FT 7800 problem

Already tried the factory recommended reset, did it like 3 times, still no go. Also however of note, the mic will allow either up or down movement of channel, however like I said before, if you turn the knob, all it will do is go up channel. Luckly I program it via the computer, so I dont have a big hassel.
Dave