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Replacing the belt on any turntable requires removing the platter. There are various schemes to keep them on but most involve a "C" clip clipped in a groove just above the platter on the spindle. You may have to remove the rubber mat to access the clip. Most rubber mats are glued down but can be pried off with patience and some force with a 1" scraper. Once the mat and platter are removed the belt can be discarded and a new one installed. Replace the platter. There will be one or possibly two oblong holes in the platter. Using a flat screwdriver hold tension on the belt and rotate the platter to get the belt around the drive and continue with turning the platter until you are sure the belt is around the drive ring on the platter and the motor spindle. You can tell because the platter will have some resistance due to spinning the motor. Reassemble the mat. It can just be placed on the platter. Unless you are going to run it upside down, which wouldn't work, it won't fall off. You are done and the unit should work like a new one. If you haven't purchased a belt this website www.mcmelectronic.com has belts for most units and also a variety pack of different length belts which should have one which will fit.
Remove the rubber mat. Underneath the mat, you will see holes on either side of the table. You should see the belt around the center of the platter, if it's any good. If it has fallen off, the belt has stretched beyond spec. If it's still on the platter(table), though on of the holes mentioned above, if you rotate the platter, you find find the motor pulley. Pull the belt from the platter center and slip it back over the motor pulley. For more information, please visit my website at audioserviceclinic.com. Thank you.
Hi. Yes you can replace the belt yourself. Lift the rubber mat off the platter and notice the two rather large holes in the plater. Put your thumb and forefinger through the holes and pull the platter oof the turntable unit. Place the platter upside down and notice the inner rim which holds the belt. Place the new belt around the inner rim and replace the platter onto the unit. Now, with tweesers, working through one of the large hole, pull the belt onto the spindle motor. Once on, spin the platter by hand and make sure the belt does not slip off. Hope this helps
The AT-PL120 uses a magnetic cartridge to extract a music signal from the record. Magnetic cartridges all put out a very weak electric signal, and so their output must be strengthened, or amplified, to where it is as strong as the input from, say, a CD player. This amplification is provided by a pre-amp. If your receiver has dedicated "phono" inputs the pre-amp circuits are already in the receiver. If you do not have dedicated phono inputs you must either buy a pre-amp, or buy a magnetic cartridge turntable with a pre-amp built into itself. The AT-PL120 has a built in pre-amp. You can switch the AT-PL120's preamp on or off. The switch is located under the platter at the back side of the turntable. Take the platter mat off and turn one of the platter's holes to the back and you should see the switch through the hole. If you push the switch to LINE OUT the preamp is turned on and the turntable sends an amplified cartridge signal out the cables which MUST be connected to a receiver inout suitable for a CD player (a "high level" input). If you push the pre-amp selector switch to PHONO OUT the turntable sends the weak unstrengthened cartridge signal out the cables which MUST be connected to the receiver's dedicated PHONO inputs so the signal can be amplified with the receiver's own pre-amp circuits.
If everything is set wrong (i.e. LINE OUT (pre-amp on), and connected to phono inputs) you are applying two steps of strengthening to the turntable's signal which is too much. The resultant sound will be garbled. Try not to do this!
The other way to do everything wrong is set the pre-amp switch to PHONO OUT (pre-amp off) and connect the turntable's cables to a high level input. If this happens the turntable signal receives no amplification and the resultant sound will be thin and weak.