Yamaha MODX6 does not start (power is dead)

[FantomX]

Yamaha PA-150 Power Adapter is OK, but Yamaha MODX 6 ... is dead, no sound, no LEDs lit, no display! MODX is, of course, warranted, but it was bought from another country, and it would cost a lot to send it for verification! Any suggestion or assumption is welcome! Thanks in the name of my friend who has this problem !

[alans]

I would have thought any Yamaha musical instrument dealer would be able to help no matter where it was purchased as it is covered by warranty.It might help to contact Yamaha directly to see what they have to say.


Alan

[andyg]

Do contact Yamaha's distributor in your country but be aware that there are usually policies in force for 'grey imports'. These are products which buyers import into a country privately, usually for one of two reasons: 1) it costs less money to buy abroad than from an authorised dealer in their country  2) the product is not available or supported in their country. Manufacturers will sometimes refuse to support these products. I'm not suggesting that this applies to you, but I have come across it before in several types of product. Those customers have been left on their own, and had to deal with the originating country.

Of course there are situations where a customer has bought a product in country A and then moved to country B. Manufacturers have to deal with cases individually! And I'm not sure what the situation is within the EU, where trade is supposedly free of restrictions.

Now, three things to think about.
1) How did you test the power adaptor? Just by checking the voltage or by plugging it into another similar instrument?
2) It's possible for the power socket to be broken in the keyboard. It's sometimes TOO easy, just a hard tug with the power lead plugged in can break a soldered connection, rendering the instrument 'dead'.
3) Many instruments have internal fuses and, if one has blown, again, you'll have a dead instrument.

Checking 2 and 3 would, of course, require you to take the keyboard apart, perhaps invalidating any warranty!

[FantomX]

another assumption: let's say that in the absence of the MODX possessor someone tried to start the synthesizer with a different power supply than the original one (and with other features). this could be a cause? if YES ... where should the synthesizer be checked? ... an opinion from a troubleshooter is welcome! thank you

[ikmusic]

2) It's possible for the power socket to be broken in the keyboard. It's sometimes TOO easy, just a hard tug with the power lead plugged in can break a soldered connection, rendering the instrument 'dead'.

It is possible.

[andyg]

another assumption: let's say that in the absence of the MODX possessor someone tried to start the synthesizer with a different power supply than the original one (and with other features). this could be a cause? if YES ... where should the synthesizer be checked? ... an opinion from a troubleshooter is welcome! thank you

That's a different question now! The PA150 delivers 12 volts. If you plugged in, say, an 18 volt power supply, then there's a good possibility that you would fry something. It all depends on the circuitry inside the synth. Normally, the input voltage is stepped down to voltages like 3 volts and 5 volts to power the circuits. You'd first have to check out the electronics that do that. Probably some voltage regulators and giving them too much voltage could be a bad idea.