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Korg EX-800 flickering display

Korg EX-800 flickering display

2015-12-19 by studio_1a@...

Hi folks, I'm new to this group. I have acquired a korg ex-800 and when I turn it on the 7 segment display is dim and flickers, pp18 says the circuit is designed so that the Led display dims when voltage drops below rated level ~6V. The circuit board is very clean (to my surprise), the backup battery voltage is 3.2V do you think its a voltage issue or perhaps a display IC ??   I don't have the original ac adapter but I'm using a 9V 500ma, which should work well. I haven't started to actually check voltages yet, I just want to know where to start..


thanks



AW: [korgpolyex] Korg EX-800 flickering display

2015-12-19 by Lütti

Hy, 

I'm not pretty shure if 500mA is enough.
Try a 1A power supply first if you can get one. And be aware of plug-polarisation!


Am Sa., 19. Dez. 2015 um 16:49 hat studio_1a@... [korgpolyex]
<korgpolyex@yahoogroups.com> Folgendes geschrieben:
 

Hi folks, I'm new to this group. I have acquired a korg ex-800 and when I turn it on the 7 segment display is dim and flickers, pp18 says the circuit is designed so that the Led display dims when voltage drops below rated level ~6V. The circuit board is very clean (to my surprise), the backup battery voltage is 3.2V do you think its a voltage issue or perhaps a display IC ??   I don't have the original ac adapter but I'm using a 9V 500ma, which should work well. I haven't started to actually check voltages yet, I just want to know where to start..


thanks



Re: OT Xmas music

2015-12-23 by Daniel Forró

Hi everybody,

enjoy some Christmas music on my new YouTube channel if you
celebrate :-)

Daniel Forró - Forrotronics