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NE 4 HP - 8 keys not working

Posted: 20 Oct 2023, 21:42
by Rezle
hi,

I have 8 keys next to each other that are not working correctly. Sometimes no respeonse, sometimes a little less loud, and sometimes only when i press 2 keys together.
I bought the NE4 recently and now after 4 weeks of using it, it is has this malfunctioning.

They keyboard was missing a lot of screws when i bought it. I bought some original screws to complete it. Maybe this as link to the problem.

any idea to solve this?

Regards,

Pieter
NE4 HP
The Netherlands

Re: NE 4 HP - 8 keys not working

Posted: 20 Oct 2023, 22:06
by gitarrenzupfer
Since 8 keys next to each other have the same error, I would suspect a loose contact in the keyboard matrix (I don't know if that's what it's called). Groups of 8 sounds like multiplexers, which is standard in MIDI keyboards in combination with microcontrollers. Could be a loose ribbon cable connector or a hairline crack on the circuit board.

By the way, when I bought my Electro 5, I had the problem that some of the keys (I don't remember how many) in the middle of the keyboard didn't work. I sent it back and received a working replacement device promptly.

If you dare, I would open the device and at least visually inspect the plugs...

Re: NE 4 HP - 8 keys not working

Posted: 23 Oct 2023, 17:50
by Rezle
I have opened the NE4 and took a visual look. I can not see any problems or bad connection. I thought it was away but the malfunction is still there.
Not sure what to do. I will connect the keyboard via midi tonight and will check if that makes a difference.

Re: NE 4 HP - 8 keys not working

Posted: 23 Oct 2023, 18:07
by maxpiano
Rezle wrote:I have opened the NE4 and took a visual look. I can not see any problems or bad connection. I thought it was away but the malfunction is still there.
Not sure what to do. I will connect the keyboard via midi tonight and will check if that makes a difference.
Testing via MIDI is a valid one, but I expect all will work that way; in fact it is hard to detect visually if a connector is not well seating, if you feel confident enough to do it you should unplug and replug the keyboard connectors (on both sides, keybed and mainboard) to ensure they are well in place; otherwise you need to take it to authorized service and have them do check & repair (if/as needed).

Re: NE 4 HP - 8 keys not working

Posted: 25 Oct 2023, 12:31
by Rezle
I reassembled the NE4 again last night and the keyboard looks fine again.
My assumption is that the 2 flat-connectors from the keyboard to the motherboard were the problem. I have cleaned them and reconnected them.

Tx to all for your help!

Re: NE 4 HP - 8 keys not working

Posted: 23 Jan 2024, 22:33
by Rezle
Does anyone know the test programm of the Electro 4 HP? I think there is one for every Nord.

Re: NE 4 HP - 8 keys not working

Posted: 30 Apr 2024, 17:25
by Rezle
I brought my NE4 for repair to KEBE Repair + Service BV in Eindhoven. They fixed it for 250 euro.

Re: NE 4 HP - 8 keys not working

Posted: 30 Apr 2024, 19:05
by pterm
Rezle wrote: 30 Apr 2024, 17:25 I brought my NE4 for repair to KEBE Repair + Service BV in Eindhoven. They fixed it for 250 euro.
Thanks for keeping the thread updated.
Did KEBE Repair + Service BV report what they fixed? Or, please tell us what went wrong between October 2023 and sending it for repair.

Re: NE 4 HP - 8 keys not working

Posted: 01 May 2024, 15:46
by Rezle
The mainboard was recovered and tested.

Nothing went wrond but the 8 keys were working sometimes but most of the time not working.

So in the end i send it to the repairshop.