Question about Music
I have a lowrey m-375 organ. The lower keyboard works sometimes and other times it just doesn't make any noise at all.
These older units like this usually inherit intermittent problems like this from sitting up and gathering dust. There are many switches and relays inside this model, and other electrical connections that would get dirty or corroded over the years. I think a good professional servicing would fix this.
Posted on Mar 29, 2014
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Posted on Jan 02, 2017
If you feel comfortable doing it you could try removing the back and examining the power supply. Make sure the power cord is not plugged in. Remove the screws holding the back on the organ. Look to see where the power supply is. It will be a fair sized metal box that the power cord comes out of. Look for a fuse holder on the box.If there isn't one or you already checked the fuse look to see how the power supply is fastened down. If you can remove it you can check the power cord from the plug end to the connection in the power supply with a volt ohm meter on the lower resistance scale. Check both sides of the power cord . Look for an internal fuse soldered into the circuit if there is one. Check it also. You can also check the power switch the same way. Think of the power cord and switch etc as a garden hose. You want to make sure that the flow of electricity is not interrupted any where between the plug and the power transformer. Do all these tests with the cord unplugged. Also avoid touching anything connected to the filter capacitors as they store dangerous amounts of electricity. If none of this helps note the plug that connects the power supply to the organ. Unplug it and take the power supply in to be tested. A good piano service place should be able to direct you to someone. Also remember that something had to make the power supply fail if it is indeed faulty. None of this is simple or recommended for a person who has no experience with electricity or electronic repair. If you feel at all hesitant about doing it you are better advised to consult a repair person. If you do have experience but no schematic you can still usually find the problem with careful thought and procedure. Break the circuit down into modules and test them one at a time starting with the power supply. It could be something as simple as a frayed cord or blown fuse to something as complex as a burned out transistor or faulty tube ( in the case of older organs) causing the power supply to fail. I once repaired a home organ that the power supply blew in again because of the customers house wiring. That particular wall plug in had been wired improperly. Hope all this helps.
Posted on Jul 10, 2009
A little more info is needed here. Are there any lights on this unit at all? Are there some normally? If so, then yes check the main fuse. If not accessable externally, it should be located close to where the power cord enters the unit. Check it (when unplugged please!!!).
If that failes to resolve it, please let me know and I'll research the specific model in the meantime.
Posted on Oct 23, 2009
Here is a site to download manual:
A Leslie is special speaker system that is spun to break up the sound so it doesn't seem to come from a single point.
Sometimes the Leslie speaker is in a seperate cabinet fromthe organ, and SOMETIMES it is a simulated Leslie that is done with multiple speakers and electronic switching. If the Leslie is an external one, it usually attaches via a cable that often has either 9, 11, or 13 pins.
Posted on Dec 14, 2009
We can only guess what model you might have and whether it is tube or solid state.
If it is a vacuum tube type, probably one tube is burned out... likely either a 12AX7 or maybe a 12AT7 as a guess.
If it is solid state and the unit has not been moved to cause a loose connector, better to call a tech. If it has been moved, you could look for a loose connector.
Posted on Feb 01, 2010
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