Question about Audio Players & Recorders
Hi i have just purchased this murphy turntable, when i place the needle on the record the needle scoots over the record, and wont play correctly,
See what type of cartridge is installed in the arm. Manufacturers use common cartridges in turntables, such as Stanton, Shure etc. Detach the head shell from the arm (it usually slips right off via a locking ring and four-pin mini plug) Look for the manufacturer and model number on the cartridge. No need to remove it from the head shell. On most modern cartridges, the stylus (as they are called, rather than the needle) simply slips off and on. No need to remove the entire cartridge (via screws) and re-align it. In fact, many DJs bring a set spare cartridges and styli on a gig, already mounted in head shells, and simply interchange them as needed. When you have the make and model of the cartridge, go to Radio Shack or use their website to order a new one...or two. Or go to Google and enter "phono stylus" as your search term. You will find reasonably priced styli for nearly every cartridge imaginable. I operate 50 year-old turntables and am able to find replacement cartridges and styli on line. Ebay also has a number of listings, by make and model of the cartridge. When the new stylus arrives, observe how easily the old one comes out of the cartridge- usually pull and slide - and slide the new one in. Re-insert the head shell on the arm, tighten the locking ring, and you're good to spin!
Posted on Jan 08, 2009
Most modern day turntables are semi-automatic. You move the tonearm from the rest post
over to the record and the platter will start turning. There is a small microswitch inside
either below the arm base or near. There should be a flat bar connected to the base of the arm
and this will actuate the microswitch. The switch is wired in series to the rotation motor.
Solution: 1. Obviously verify the belt is on. Take off the rubber mat and rotate the platter.
The rotation motor is on the left and it has a small brass spindle. The belt should
be visable through the holes in the platter. If not pull the platter gently up, there will
be some resistance. The belt wraps around a smaller inner ring on the underside
of the platter and the rotation motor spindle. If it is degraded it will be stuck to the
platter or fall apart. Generally there 3 common sizes. ( 21.4 / 23.6 / 25 inch) they
readily available on E-Bay, search term "turntable belt".
2. Obviously check power.
3. Check the microswitch, it should "click", verify with ohm meter.
4. Some turntables have a "cut" or stop function. The arm must return first to rest before
starting again, again the microswitch is the trigger.
Posted on May 17, 2009
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