Yamaha PSR-79 keyboard fried fuse

HQRP AC Adapter / Power Supply for Yamaha PSR ... - Fixya

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HQRP AC Adapter / Power Supply for Yamaha PSR-280 / PSR280 / PSR-290 / PSR290 Keyboards Replacement plus HQRP Coaster, 600 related issues. ... is there an internal battery to protect memory and if so, do i need to replace it? yes there ...HQRP AC Adapter / Power Supply for Yamaha DGX-620 / DGX620 / DGX- ...

HQRP AC Adapter / Power Supply for Yamaha PSR ... - Fixya

www.fixya.com/...hqrp_ac_adapter_power_supply_yamaha_psr/adapter

HQRP AC Adapter / Power Supply for Yamaha PSR-280 / PSR280 / PSR-290 / PSR290 Keyboards Replacement plus HQRP Coaster, adapter related ... need a new one, you could try to get a replacement from casio or try to get an ... It MAY appear to operate on DC BUT it can't generate the +/- voltages internally for sound .

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HQRP AC Adapter / Power Supply compatible with Fulltone CATALYST / CHORALFLANGE Guitar Effects pedals Replacement plus HQRP Coaster by HQRP. $7.91. ... The MS-90 is a column monitor stand that features three internal channels - .... Yamaha SK88 Survival Kit for 88-Key YPG Series Keyboards by Yamaha.

Check that the powr adapter is working and putting out the correct voltage.

If the power adapter is not the original adappter- check to make sure the polarity is correct- it should be marked on the keyboard near the adapter socket, and also on the adapter itself.

The keyboard should have an internal fuse- check that. Then with keyboard open, if the fuse is okay, trace the power flow from the power pack and look for broken wires, bad solder connections, stressed components like bulging capacitors, etc. It may have a burned out zener diode in the power supply regulator portion of the main circuit.

You should be using the Yamaha PA-3B adapter. The unit draws 9 watts... so at 10 volts a 1 amp adapter would be great. Make sure the polarity is correct.

Check that your power adapter is 12 volts DC AND MOST IMPORTANT is the center pin is positive... this is reversed of MANY adapters used for pedals, etc. The current rating should be around 1.5 amps. Don't take another techs word for it... check it yourself.

Your adapter should be a 12 volt DC delivering 2 amps (2000 ma). If the adapter is too small, you will have the symptoms you are seeing. Make sure the polarity is correct. DO NOT use the so called "universal adapters".

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Yamaha-YPT-220-Music-Keyboards-manual/id/23656ci473/t/2/


#27 on page 11, rear panel.

Hi, i think you can. You can go to any of the Yamaha companies around you area and explain to them the problem of the keyboard. They will give you good and quality replacement part for your Keyboard.

Make sure you go to only Yamaha company to avoid getting a wrong part for your Keyboard.Avoid road siderepairsforissue like this,it's more complicated to handle

I guess that will do.

Thanks for using fixya...

1200 ma provides more power than the 700 ma, and would not be affected by using it on a device that draws 700 ma. The voltage of the charger makes a difference as well as the polarity of the plug. (if it is dc)

If the 700 ma charger is not working, most likely the 700 ma charger is not working

Try going to http://www.yamaha.co.jp/manual/english/index.php. There, you can try to find your owners manual for free.