My PL120 turntable purchase new skips often and will hardly work with music played at a loud volume

The software itself should come with an sound imput level control. But if you can't find it or it's on full then there are ways round it. However it depends on how the turntable is connected to your computer. Most turntables require in an amp to have a magnetic cartridge pre-amp to boost the level to that say of a tape. Rather than mess around sometimes it's better to get one of these pre-amps and have that between the turntable and the computer. Then the sound should be the same level as a tape signal. You will have to bypass that pre-amp if you are recording anything else such as tapes to your computer. Or you will get a noisy loud signal!
Just search for a "magnetic cartridge pre-amp" on the web.

Audio technica will send you a replacement clip free of charge. Just send their service department an email asking for one.

hi,
Do one thing adjust counterweight on the back of the arm to 1.5gm or 2gm by rotating the counterweight. It will give some more pressuer on the styles and will avoid the jerking
ok

Master volume control pot is dirty and needs to be cleaned out. You can do this by unplugging the receiver and turning the master volume control back and forth from zero volume to full blast a couple of hundred times to clean the surfaces and restore normal operation.

Keep turning the weight control up a little at a time to see if it solves it.

HELLO!
I don't know which country you are from, but if the mains plug has a fuse in it then replace it with the same type. If that does not do the trick take it back back where you bought it and get a refund or a replacement! There may well be an INTERNAL fuse inside the unit on the power supply unit which may be at fault. If it is under warranty don't open the turntable yourself - take it back - I WOULD!
All the best!

Hi,
I have a Mac (OS X 10.5.7) and had the same problem with the Ion TTUSB system picking up room noise. This seemed to fix it: 
In System Preference, under Hardware, choose "Sound".
Choose "Input".
Under "Choose a device for sound input" choose USB Audio CODEC  type: USB

I hope this helps,
Cheers!

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.

You have those newer earphones, the ones that actually go in your ear, the pods? No? Well dig this guy. They have more volume and monsterous bass! One player I have that I used to turn up to about 8 on it; I can hear at 1 with a set of cheap Sentry earpods I bought for $4.
Otherwise, it sounds like you might need a new rechargeable battery, or a better brand/ kind of disposible battery. If you use rechargeble batteries like AA or AAA, most have less power than regular disposible; 1.2 vs 1.5. You'll still want the earpods, serious.

Have you checked your cables from the turntable? It kind of sounds like you have lost the ground connection on that side, either in the cable or in the turntable itself. Perhaps at the wire going into the cartridge. You might check all these things. Good luck.