Number 4 (JKL) button triggers repeatedly

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Disgraceland101
Posts: 3
Joined: 08:47, 26 March 2021

Number 4 (JKL) button triggers repeatedly

Post by Disgraceland101 »

I recently purchased an MV8000.

After a couple of weeks of use the number 4 (JKL) button triggers repeatedly. It's not every time I use it, but getting worse.

The only changes that I have made are to install an SD card.

Does this sound like a pad issue or something to do with the board?
arp70blue
Posts: 37
Joined: 15:44, 26 May 2015
Location: Liverpool, England

Re: Number 4 (JKL) button triggers repeatedly

Post by arp70blue »

Hi,

I appreciate that your post is from a couple if years ago but thought I'd drop a note as it may help others.

I am just about to replace my #5 tact button as it is not triggering at all. The carbon contact on the button wears out and the fix is to desolder old, solder new 2 or 4 pin tact button (sits under the plastic key pad button).

In your case it may be a bad solder joint that is connecting intermittently or the carbon contact may have fused togethet in the tact switch.

Either way replacing tact switch should work. It doesn't sound like a wider circuit board problem.

Note: Open machine at your own risk, no liability accepted for any damage you cause to the machine.
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