Hello All,?
Hello Electronica valvulas ! First, you will not get more help by repeating your messages? and please sing with a name or callsing : we are humans !
I have a FT-980 saved from scrap but the problems were more on analog side...
The VFO unit of the FT-890 is digital, and controlled by CPU unit. The dial unit give only pulses to CPU unit.
The display take the data from the CPU unit. This can be observed on block diagram of page 59-62.
The VFO is only controlled by the CPU board
If the dial change only the 1 kHz steps, it will be more a problem on the CPU unit.
Do the following steps :?
- remove the battery to reset the CPU RAM.
- Select only HAM VFO , only its own LED is lighting and all other must be off !
- Enter a frequency using key board : type "ENT" 07000.00 "ENT"
- Check the real frequency ? Do you receive on 7.000.00 or is it shifted ??
- Depends on the result try +100 Hz up by typing 7.000.10 "ENT" . Does shift the Rx frequency ?
- If yes,it is more a display problem !
Based on a constructive and detailed response I can support you for next steps...
73 de F5RCT JMat (Jean-Matthieu), France, Strasbourg north
