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My Yamaha electric piano, P80, will not power up


first - check the power supply if it's really giving power.
Get voltmeter or plug it to something else you know it's working.

If you are sure it does and still nothing, you need to check the fuse inside the P80. I've been there, it's not so hard to open it
(from below of course)

BTW, it's advisable to user surge protector on such delicate devices like computers and keyboards if there are any fuses that have blown. I can't tell you how many times a blown fuse has stopped equipment from working. I had a blown fuse go in a microwave oven a few years back. I called a repair guy while on a job to fix my Leslie (many years ago) and the culprit, a blown fuse. I could have fied it myself if I had given it more thought.

Check the internal fuses first and you might save some money and a trip to a repair center. , sometimes a fuse can look good even when it is blown. If you have a voltage tester do a continuity check on the fuse just to be certain.It's possible that the P80 does not use internal fuses especially since it uses an external 12 volt power pack There might be info on the fuse in the P80 manual. Otherwise try Yamaha support. A lot of low volage gear run of AC adaptors is unfused.

Another possibility is that the power connector or switch on the P80 is broken. DC power jacks are liable to get broken solder joints due to movement, especially if they are circuit board mounted and not chassis mounted. If you know what you are doing test the connector and switch with a multimeter.

If they are good then also check the wires from the switch to the main board. They a probably connected with a plug, which itself can come lose.

You can test for bad connections with the power off. Only test with the power on if you really do know what you are doing! You won't electrocute yourself but you can easily damage the keyboard if you are not careful.

Unless you are experienced in electronics repair that is as far as you should go.

Oct 23, 2017 | Yamaha Music

1 Answer

Sp4 blown fuse


It's not a fuse, it is a lamp and I suggest ordering replacements directly from Peavey.

Dec 10, 2013 | Peavey SP4 2-Way PA Cabinet (2000 Watts,...

1 Answer

Roland ac 60 sudden loss of power. Is it the fuse?


If you mean it's completely dead, no lights or anything, then probably the fuse is blown. The question then becomes"what caused the fuse tio blow?".
If however, by loss of power you mean it's quiter but still producing sound, then the fuse is not blown.

Sep 08, 2013 | Roland Ac60 Acoustic Chorus Guitar...

1 Answer

One side of my peavey xr86000 power mixer blew a fusework


Any unit that blows fuses needs to be serviced. Do not keep putting in fuses only for them to be blown again. Each time you put in a fuse and it blows, it will create more damage to the amplifier.

Jan 14, 2013 | Peavey XR 8600D Class D Powered Mixer

1 Answer

What size internal fuse on mackie srm450v2 speaker


Mackie say this is not a user service part. If the fuse has blown there is probably a fault in the unit being their reasoning. I know for certain they tend to blow for no apparent reason so it is worth giving it a go. They are 5 x 20 Slow or time fuses. 7A for 120V and 4A for 230V

Jul 13, 2011 | Mackie Srm450v2 Srm V2 Active Speaker...

1 Answer

Fuse blown on Europower PMP 3000. Where can I find a 10 Amp 250 V ceramic replacement fuse?


You don't need to use a ceramic fuse if one's not available. You can also use a glass cartridge fuse as well. Just be sure the rating is the same. Be aware, though, that fuses seldom blow on their own. Usually it's because something else has shorted. So don't be surprised if replacing the fuse only results in another blown fuse. Behringer stuff is notoriously cheap and under-protected, so by the time the fuse blows it's usually more trouble than it's worth trying to fix. But maybe you'll be lucky and it will be something simple. Good luck, and thanks for using Fixya!

Jul 05, 2011 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

Is there a fuse in this amp? is it replaceable without soldering?


Hi, blowing a fuse in an amplifier is a problem that most guitarists face at one time or another. If an amp won't turn on, or it turns on for a second, then makes a popping sound and turns off, the problem is usually a blown fuse. Though a blown fuse can be a hassle, especially during a performance, it does not have to put a stop to your musical enjoyment. With a spare fuse you can be back jamming to your favorite tunes in no time flat.

Things You'll Need

Fuse.

Instructions

Turn off the amplifier and unplug it from the wall.

Locate the fuse, which is usually found at the back of the amp. The fuse will look like a small black wheel sticking out of the amp with a number and the letter V next to it. For example, 9V.

Gently turn the fuse counter-clockwise to remove it from the amp.

Discard the old fuse.

Insert the new fuse into the empty fuse slot and turn it clockwise until it is firmly in place.

Plug in the amplifier; make sure the power switch is in the off position.

Turn the amplifier on to make sure the new fuse is working properly.



Hope it helped..

Jun 14, 2011 | Crate FlexWave FW15 Guitar Amp Combo, 15...

1 Answer

Power not turning on. yes i've checked the outlets, the connections and the breaker switches.


Most keyboards have fuses, and this could be the problem. If there is access to a fuse on the back panel, check to see if it is still good. If there is no fuse cap, then the internal power supply may have a blown fuse. If so, it's time to see a service tech...

Feb 10, 2011 | Yamaha P95 Digital Piano

1 Answer

Good evenin' pluged a dx626 to 220V with all as it was from stock. it light for a moment and from that time doesnt work. problem in fuse? please help


It could have blown the fuse. The fuse is a part of where the power cord plugs in behind a little cover.

Most of the electronics is fairly well protected. If fuse is blown, replace with identical size and try it once. If it blows again, some parts in the power supply are damaged and will require service.

Apr 16, 2010 | Behringer DJx700 5-Channel Pro DJ Mixer...

1 Answer

Blown fuse


Continued replacement of fuses without fixing the reason for them blowing MAY be doing additional damage to components in the unit.

It needs to go to a repair shop. It is likely there is damage in the power supply section or that of the power amplifier section.

Feb 28, 2010 | Marshall MG100HDFX 100-Watt Amplifier Head

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