Question about Technics SL-1200MK2 Turntable

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No signal from the Left output + Tinny sound

Got 2 different problems with 2 turntables.

1. No left output from one deck. Ive swapped over my cartridges and the problem still persists - any ideas?

2. Output from deck sounds very tinny. Ive tried different cartridges and the same problem persists - any ideas?

Thanks

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  • 185 Answers

1. Assuming there is no problem with your amplifier of input cable, the headshell/tone-arm needs rewiring. This is very thin flexible wire and not easy to do, but can be done if you are careful.

2. Turntables require a special input on your amplifier which has a frequency response that is suitable for them. If you connect a turntable to an ordinary input, it will sound tinny. If you don't have a turntable input (known as a phono input [from phonograph]) you will need to use a preamplifier with your turntable.

Posted on Mar 17, 2008

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1 Answer

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 Audio Players & Recorders

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No sound from left speaker on right deck. left deck is fine. confused! tried unplugging one at a time and only the right plug is working. is there anything simple i can do to rectify this problem? as...


To find out what the problem is try this, swap over the right and left leads from the deck to the amp. If the problem stays on the left channel there's something wrong with pre-amp in your amp. If it goes to the other channel (right dead) it's the deck. Next remove the wires to the cartridge to the deck with the fault. Make a note of how they fit on the cartridge before you do. With the amp connected to the deck and on. Touch (one at a time) each of the four wires with your finger. Two of them will probably produce no sound. But from one wire you should hear a buzz on the left channel and from another wire a buzz on the Right channel. If you get a Buzz on the left speaker then all the connects are good and the cartridge has gone. If you don't get a buzz, then there is something wrong with the left cable connector between the deck and amp.

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My ion discover dj decks worked fine until i tried to use an external usb sound card alongside it for the headphones, now, even with the usb sound card removed,i am unable to have 2 of the audio outputs as...


i would do a uninstall of anything Made by ion and Re install and see if that solves your issue, Ion isnt a very good dj product so something as simples as this could screw something up. try a fresh install and please let me know what happens and ill assist you from there

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1 Answer

Hello! We have some problem whith 1 chanel, when 2


BOTH turntables and the same channel on each? If it's really really low and tinny that would probably be a failure to have/use a PHONO preamp (built-in and selectable on the Mixer).

Swap the channels coming in from the mk1200 and see if it stays with the mk1200 or with the left channel of the mixer.

There IS an outside chance you have flaky connections at the cartridge.

May 06, 2011 | Vestax Pmc07pro DJ Mixer System

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Only one channel plays.


If you disconect the wires to the cartridge and with deck plugged in to the amp and switched on, you can touch the ends of the wires with your finger. Though there are four wires, only two should produce a buzz, one in the left, one in the right speakers. If you get a buzz in each channel, the rest of the unit is working fine and you have a faulty cartridge or a poor connection to it. If one channel remains dead, then you have a problem in the wires to your amp or an internal fault inside the deck. If internal I suggest you remove the bottom of the turntable and have a look around.

Mar 19, 2010 | Audio Players & Recorders

2 Answers

One of my DJ turntables = only left side stereo sound


need to narrow it down, using 1 turn table ONLY with the mixer on channel 1 (the chanel that is working) to test reciever is working properly and sound working on both side of the speakers, this eliminate the first turn table. Next, disconnect the working turn table (1) and connect your second turn table to the same chanel and see if you getting the sound coming chanel 1 just as your first turn table did. If you getting sound coming out from turn table on ch1 than is not the turn table issue. It will be you mixer having problems. You cant solve the problems having everything connected. Testing one turn table at a time using working chanel on the mixer to see if both turn table working properly. If you use the same chanel testing both turn table and the second one does not work than it will be one of your turn table is faulty. Note: if you find and test both of your turn table is working properly than it will be your mixer. good luck and hope that help..

Aug 06, 2009 | Technics SL-1200MK2 Turntable

1 Answer

1 X 1200Mk2deck higher volume / causing spkr not to work..


Problem If you swapped the two TT's would the problem stay with the connection on your mixer? At least then you/we would know wherein lies the problem. I'm betting thge low volume is because you have the phono jacked into a line level input like AUX instead of PHONO.

Typically, what you're describing is a phone source plugged into a NON-phono connection. (Tinny, low volume - classic lack of a phono preamplifier with RIAA equaliztion). A standard old-school tuntable requires a phono preamp that is labeled "PHONO". Nothing else will give it the boost and freq response correction LP's and phono cartridges produce.

Your problem #2 alludes to a channel problem with a turntable running through your mixer. This isn't rocket science. Swapping the two turntable channels around would probably change the apparent failing channel, right? Yes - Problem out at the turntable. No - problem in the mixer. You've already hinted at the source by monkeying with the tonearm wiring. You're on the right track. The tiny multi-colored wires in the cartridge shell are very thin and delicate. Their brass fittings sometimes oxidize and reseating them as you have done usually gives some relief. Kinks in the wires could cause your intermittent symptom. At the RCA end of the tonearm cables, make sure they're seated on with a twist to wipe off oxide.

Problem #3. Is it just bothering you or is there a functional problem, too?

Apr 21, 2009 | Technics SL-1210 Turntable

1 Answer

No sound comes out of the left pre outs


It sounds like the preamp wire that carries the left channel signal between the HU and the 2ch amp has an issue. Here's two quick things to check.
  1. Check that both ends of the left preamp cable between the deck and 2ch amp is not loose or disconnected.
  2. Swap the left and right preamp connections at the amp. If the issue stays with the left channel, the issue is with the amp. If the issue moves to the right channel, the issue is with the preamp cable or the HU's preamp output.
Let me know what you find out!

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No sound from turntable bought for our hi fi system


Hi,

Most if not all turntables would need to be connected to a PHONO INput which is high impedance with a high gain pre-amplifier stage. It will not work when connected to an AUX, CD or any line level inputs. Alternately, if your amp does not have any Phono Inputs, you can feed the turntable output to a preamp which can then be connected to any any line level inputs. An example may be found here or here. Additionally, there are some turntables with a built-in preamp.

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Jan 16, 2008 | Audio Players & Recorders

1 Answer

Left output from one of my turntables cuts out regularly leaving a hum


No, the issue is either with the RCA cables or the tonearm. You might also want to check your cartridge and headshell connection. Make sure the contacts are nice and clean, and securely on the headshell. Have you tried swapping out your turntables? Take the left turntable, and put it on the right channel's input, and vice-versa? This will tell help isolate the issue. If the problem just moves, then we know it's not your mixer. If the problem remains on the same side, then you know there is something wrong with your mixer.

If the problem moves, then you can safely say it's your turntable with the issue. The STR8-30's aren't the greatest quality, so it's also possible that you have a faulty tonearm or RCA cables.

Hope this helps.

DJPROAUDIO
TWEAK AV LAB

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