Broken MODE button

So my MODE button doesn't work at all. How do I determine wether it's just the button that needs replacing or if I need to do some soldering (hopefully not)?

Is it possible to trigger the MODE button through another function with another OS?

Welcome to the ownership of a Nukai era MPC!

You can prolong the life of those cheap tact switches by using Deoxit spray, but eventually they'll need replacing.

In JJOS at one time you could switch the operation of the numeric buttons to act as direct function buttons, which essentially made the Mode button obsolete. What a simple but brilliant feature that was as well, but I believe it may have been dropped to add other stuff.

Coz wrote:You can prolong the life of those cheap tact switches by using Deoxit spray, but eventually they'll need replacing.

Bought a second hand MPC 1000 the other day which had some dead tact switches. Deoxit D5 brought them back to life!

Don´t sleep on Deoxit!

**** wrote:

Coz wrote:You can prolong the life of those cheap tact switches by using Deoxit spray, but eventually they'll need replacing.

Bought a second hand MPC 1000 the other day which had some dead tact switches. Deoxit D5 brought them back to life!

Don´t sleep on Deoxit!

Glue? How does that work?

The button clicks, but doesn't trigger a response. Which makes me think it's a circuit problem? (Not that I know what I'm talking about)

Long term fix is to replace the tact switch.
As someone said earlier you can try an electrical cleaner on it but if you rely on this machine you should solder in a new switch .
The mode button is gotta be the worst to start dying as you'll probably know .
I use two of these machines and I am about to replace all the small tact switches on them.
That's just under 100switches. It annoys me cause some of them have been poor from new and I never gave them a hard life.

MPC4k wrote:

**** wrote:

Coz wrote:You can prolong the life of those cheap tact switches by using Deoxit spray, but eventually they'll need replacing.

Bought a second hand MPC 1000 the other day which had some dead tact switches. Deoxit D5 brought them back to life!

Don´t sleep on Deoxit!

Glue?

Deoxit D5 ain´t no glue, mate.

**** wrote:


Deoxit D5 ain´t no glue, mate.

Cleaner? Where should I spray it exactly?

Snappy wrote:Long term fix is to replace the tact switch.
As someone said earlier you can try an electrical cleaner on it but if you rely on this machine you should solder in a new switch .
The mode button is gotta be the worst to start dying as you'll probably know .
I use two of these machines and I am about to replace all the small tact switches on them.
That's just under 100switches. It annoys me cause some of them have been poor from new and I never gave them a hard life.

Is 'tact switch' a seperate switch that goes underneath the visible button?

Tactile switch...




Tact switches are pushed down on by the visible plastic buttons to actuate them...




Remove the plastic button from the faulty tact switch (they 'hook' into holes/slots in the PCB), turn on the MPC and push down directly on the tact switch to see if it is working, or not...




If it does work, the plastic button might be damaged and not pressing down onto the tact switch to actuate it, and it might need a new plastic button.

If it doesn't work, spray a little Deoxit onto the tact switch, so it penetrates into the body of the switch through the gap around the round black tact switch top, work the button by pressing it quite a few times so that it cleans any corrosion/dirt from the contacts inside the switch. Don't go overboard, and try to only get it into the tact switch, not all over the MPC insides.

SimonInAustralia wrote:Tactile switch...




Tact switches are pushed down on by the visible plastic buttons to actuate them...




Remove the plastic button from the faulty tact switch (they 'hook' into holes/slots in the PCB), turn on the MPC and push down directly on the tact switch to see if it is working, or not...




If it does work, the plastic button might be damaged and not pressing down onto the tact switch to actuate it, and it might need a new plastic button.

If it doesn't work, spray a little Deoxit onto the tact switch, so it penetrates into the body of the switch through the gap around the round black tact switch top, work the button by pressing it quite a few times so that it cleans any corrosion/dirt from the contacts inside the switch. Don't go overboard, and try to only get it into the tact switch, not all over the MPC insides.

Excellent! Thank you