Korg Forums

[jtkthx]

I bought this MS2000BR on eBay, and the seller included a universal AC adapter. The thing powers on, sounds beautiful, all LED's and everything work, except the LCD displays nothing but nonsensical characters. SOMETIMES it will show the boot-up screen when it powers on but shortly after will go back to ugliness.

I have since replaced the AC adapter with a more suitable one, but of course the problem remains.

My first thought is that it's a firmware issue, but I can't even find a download for the BR. Not sure where to begin, and I'll probably end up heading to the nearest authorized Korg tech but any guidance would be greatly appreciated.

[sohatyi]

Check the LCD ribbon cable is attached to the display properly maybe, sounds like duff data being sent to the screen, which could be a pinout issue if it's not attached properly or has worked its way loose in transit.
_________________
Korg: M3M, EMX2, EMX1 (x2), ESX1, ER1, EA1, R3, MicroKorg, MicroSampler, Micro X, KP2, KP3, KPMini 1&2, KO1&2, KP Pro
Roland: SP808, MC505, Handsonic 10, Fantom X6, RC505, CG8
Emu: Command Station MP7 (x3!), Proteus 2000, Planet Earth, Virtuoso, Planet Phatt, XBoard49
Novation: UltraNova, Nova
Yamaha: RM1X, CS2X, DX11, DX Reface, YC Reface
Other: Zoom R24, Quasimidi 309, Beat Thang, Akai MPC1000 and a couple of Omnichords

[jtkthx]

I sincerely appreciate your reply.

After opening it up I noticed some grime on the board on the side opposite the LCD. So I cleaned up the area with some isopropanol and had it working perfectly for about 30 seconds, then it started showing the wrong characters again.

So I reseated the ribbon cable and it got worse again. Then I must have shorted something out because now it won't boot up at all. It only shows a backlight on the LCD, and the two audio-in LED's (I'm assuming this is a diagnostic thing) are on for a few seconds, then off. No sound at all.

[sohatyi]

Sounds like a bad joint... The moisture temporarily bridging it. Time to get out the multimeter! (or take it to a repair-man).
_________________
Korg: M3M, EMX2, EMX1 (x2), ESX1, ER1, EA1, R3, MicroKorg, MicroSampler, Micro X, KP2, KP3, KPMini 1&2, KO1&2, KP Pro
Roland: SP808, MC505, Handsonic 10, Fantom X6, RC505, CG8
Emu: Command Station MP7 (x3!), Proteus 2000, Planet Earth, Virtuoso, Planet Phatt, XBoard49
Novation: UltraNova, Nova
Yamaha: RM1X, CS2X, DX11, DX Reface, YC Reface
Other: Zoom R24, Quasimidi 309, Beat Thang, Akai MPC1000 and a couple of Omnichords

[Edpoiloo]