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LCD not working-


Gjpctech
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Has anyone run into an issue with the LCD display not working?  It powers on, it's backlit, but I can't get anything to show up. I used the amp about 2 weeks ago, it was fine, turned it on today... nothing.

 

Everything else seems to be working, knobs control the sound, drums work, selector knob changes pre-recorded tones, I just can't see what tones I've selected.

 

I was going to try and flash the firmware, but I don't know if you need to follow prompts on the LCD display to even do that.

 

Now that I look at it, the orange light around the "Drums" and "Guitar/MIC/AUX" button doesn't light up.  Hope that isn't indicative of a main circuit board problem.

 

Please let me know if anyone else has had an issue like this.

 

Thanks!

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Im in the same boat. My Jam was having issues and I took it apart to clean it and check cables to see if they were loose. I found evidence that it had something leak into it from the display area. And there are/were rusted spots on the chassis and sa few spots on some of the boards. I did take it apart to clean it thoroughly. I got it clean but must have gotten some of the fluid behind the display, I could see a pool of fluid behind it. So now Im redoing the cleaning and focusing on the display its self. 

 

More later.

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