Question about Audio Technica AT-PL50 Turntable

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Just set up new turntable AT-PL50. Sound very distorted

Just set up new turntable AT-PL50. Connected red pin plug to right channel and white pin-plug to left channel input of the amplifier. Sound very distorted.

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Posted on Jan 25, 2009

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SOURCE: Sound very distorted

This turntable has a preamp switch on it, which is probably on and what is causing the distortion. Take off the metal record platter by lifting up on the two holes gently. Turn the pre-amp switch to 'off' and then try it again. This is probably it...

Or you can plug it into an input that doesn't have a preamp and that should work.

Posted on Dec 31, 2008

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Four wires coming from needle to cable, two are shield and two are left and right channels. Which color goes where


Actually it's not to hard to connect them. All you need is a stereo record where you know a sound of something is on the right or left channels. I use to have a Goodies LP where a one of them would say "bounce to the left" and the other said "bounce to the right" these coming on the respective channels.
To set it up just stick the red (right) on one of the cartridge pins and white - left on the opposite side - not underneath it. Then connect the other two to the pins below them. Play your test record. And if the sound which is supposed to be on the right channel come on the left - swap the two red and white wires around.
If the sound sounds (tinny spaced) out then swap the same side wires around.
So if you have say Red Green, Make it Green Red. If it is tinny only on one channel, don't switch the other channel around.
For example the right is tinny - do the above - but leave the other White Blue.
By the way some cartridges do have L and R marked on them and + and - for the channel types. " -" being for the green or blue wires.

Feb 08, 2014 | JVC Turntables

1 Answer

I have a Technics turntable Model: SL-BD22-KM, Ser.#: GF3Fc73813. The RCA and ground connection panel on the turntable has been jurked-out tearing the wires apart. I need to know which wires are soldered...


hi,
Here is the wiring of the turntable RCA plug ( RCA wire will have 4 connections like red and its outer wire then White and its outer wire.). connect these as follows.

For right channel

Red wire from the turntable to the red center wire of the RCA plug

Green wire from the turntable to the outer wire with red wire of the RCA plug

For left channel

White wire from the turntable to the white center wire of the RCA plug

Blue wire from the turntable to the outer wire with White wire of the RCA plug
OK

Oct 10, 2011 | Technics SL-BD22 Turntable

1 Answer

My Pioneer PL-990 Turntable only outputs sound through the white wire. Only a quiet buzz comes through the red wire.


The red wire is the right channel, so going back to your amp, get a single phono plug with with the wire exposed, so you can touch the wire. Then remove the turntable connections. With the amp on plug the the lose wire plug into each channel and check if the sound on the right is still low. If it is then there's a problem with the magnetic cartridge pre-amp inside the amp. They are often located near the phono socket on a seperate PC board, but if not just follow the red wire to the main board. Chances are it will be an IC that's failed.
If it has a strong buzz at the back of the amp. Then I should replace the wire between the turntable and the amp. Or the right phono plug that connects to the amp.

Nov 13, 2010 | Pioneer PL-990 Turntable

1 Answer

I have an Audio-Technica turntable (AT-PL50). I recently moved and when I hooked my turntable back up, the sound is terrible. It sounds distorted, similar to the sound of blown-out speakers. But, I checked...


it sounds like your cartridge is shot and damaged.
this turntable has fixed cartridge and only the stylus can be changed.

check out this manual: http://www.audio-technica.com/cms/resource_library/literature/0fb01429606842cf/at_pl50_om.pdf

Jun 20, 2010 | Audio Technica AT-PL50 Turntable

1 Answer

Sound only from left side speakers!


If you put the good channel from the deck into the right and then left phono imputs of your amp, the sound should come out from the left and right speakers. If it only comes out from the left, then the amp as a right hand channel fault. Now if other devices work on both channels, then it's the pre-amp for the phono socket that has a fault on it. You should be able to find this by following the wires from the phono socket. If you touch around that pre-amp you should get it to buzz on either channel (where it joins with the main pre-amp). Doing this with a screwdriver will pin-point where the faulty part is (working backwards). PS don't short anything by touching to bits of metal together with the screwdriver.
Magnetic cartridges need a small pre-amp before they can be past to the main pre-amp. That's why you can't hear anything with the deck plugged into another line socket.
If you get signal on both left and right speakers with the above test the deck is to blame.

Jan 11, 2010 | Sony PS-LX300USB Turntable

1 Answer

Sony PS-LX300USB Turntable, one channel not working


Have you tried swopping over the output leads from the turntable to the amp (normally one red and one white phono plug) so they are in each others socket? If you do this and you still get no sound from the right channel it is almost certain to be a faulty amp,or speaker.
If you swop and get no sound from the LEFT channel it is could be either a faulty lead or cartridge.

Apr 19, 2009 | Sony PS-LX250H Turntable

1 Answer

Sound very distorted


This turntable has a preamp switch on it, which is probably on and what is causing the distortion. Take off the metal record platter by lifting up on the two holes gently. Turn the pre-amp switch to 'off' and then try it again. This is probably it...

Or you can plug it into an input that doesn't have a preamp and that should work.

Dec 25, 2008 | Audio Technica AT-PL50 Turntable

1 Answer

Sound only from one channel


Get hold of a multimeter and check the resistance from the leads in the shell (when connected to the tonearm) to the plugs at the other end of the cable. It should be zero or very near to zero.

Measure the resistance of the cartridge itself on both channels to see if it's at fault. Moving magnet cartridges should give somewhere between 500 and 1000 ohms, Moving coil a lot lower.
Use a high resistance setting in the multimeter to start with.

Color codes for headhell wiring:

Red = Right signal
Green = Right ground
White = Left signal
Blue = Left ground

When you measure much higher resistances or open circuits cleaning is indeed needed.

I clean small contacts like these with a fiberglass brush, which I think is/was sold as a sort of eraser in office supply shops, with a bit of alcohol on it.

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You won't screw up anything by cleaning up a bit as long as you don't use any agressive cleaning fluids, plain old alchohol and gently scraping of the gunk will do.

Hold the cable ends with the clips firmly between tweezers and scrape around in them. When they do not fit snugly on the cartidge anymore after cleaning just gently squeeze them together a bit before re-installing the cartridge.

Jan 15, 2008 | Technics SL-1210 Turntable

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Turn table set up


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good stuff, free trial

Dec 24, 2007 | Audio Technica AT-PL50 Turntable

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