As I understand your post, you have a G-dec amp that you haven't used or even turned on in a long time. Now you have turned it on again, and the LCD screen lights up, but shows no information on the screen. But when you plug in a guitar to the G-dec amp you do get sound.Imam fender g-dec pojačalo koje nisam dugo koristio. Sad ga upalim, zvuci rade, lcd zaslon svijetli, ali ništa ne pokazuje.
Ima li netko savjet što bi mogao biti uzrok?
The last sentence was misspelled (my bad English). Correct: maybe the lcd screen died after all?
How do I check?
Below is a discussion thread related to a Fender Mustang III LCD problem that might give you some ideas where to check. But you will have to get access to the circuit board area, inside the amp, to do so. Myself, I really have never had this problem with the two Fender digital amps I have, Mustang III V.2 and a LT25. I have had a few LCD wrist-watch displays just stop working.Thank you for your reply.
The amplifier was only in the room. Everything works, tones, drums, volume, only I don't see anything happening on the screen. I checked the flat cables, I think everything is fine, the voltages coming to the board are ok. Isn't the display a church?