Quartz accuracy not accurate

This could be the result of pitch adjustments gone awry. Also, you may have both the 45 and 33 1/3 buttons pushed down which cause it run at 78. Here are a few trouble shooting tips and you can find the full manual for the TT at the link posted below:

Record sounds too fast or too slow. 1.) Turntable is set for wrong speed. Make proper speed selection for record type being played with platter speed buttons. 2.) Variable pitch is engaged. Depress quartz button or return pitch adjust slider to center detent position to engage quartz lock. Moving pitch adjust slider produces no effect. If the LED next to the pitch adjust slider center detent position remains green when the slider is moved, quartz lock is engaged. Depress the quartz button to disengage the quartz lock and activate variable pitch. The LED should turn RED

Hi, please do this test for me. With the deck running on 33 speed and the pitch control set to 0 use your finger on the platter centre and speed it up manually as much as you can. Doe's the quartz lock lamp come on? If not then open the deck up and loosen off the fixing screws on the circuit board that has the 33/45 buttons. Try to change speed with the board loosened off. If none of the above makes any difference replace the quartz lock neon. Use only original Technics neon. As a matter of interest have you done any mods to the deck? Cheers John,

Use the slide on the pitch control to move forward or backward until the dots stay steady. If it is a little old the quartz control won't work as well.

You should be fine with this. Here is the spec:

Quartz lock large blue LCD display showing: speed, pitch & platter direction, locking platter reverse button, located in battle position, 3-speed design: 33, 45 & 78 RPM, 7 grams of anti-skate adjustment, adjustable pitch control+= 10 & pitch bend buttons, locking reverse button, hi-tech tone arm with height adjustment, feather-touch start/ stop control, strobe illuminator, pop-up target light, headshell, slipmat and dustcover included . 115V/230V switchable. 17.75"w x 6"h x 14"d. Weight:27lbs.

This seems to be a pitch control issue. controller,
replacing \t,could be worn over time,
SL1200 Technics - if you want a solid long lasting excellence of sound reproduction for many years to come,

I had the same pitch control issue,
happened on one of my decks so I replaced the controller and good to go from there,

Another important tip -
never lubricate the controls sliders with any thing apart from the correct greases or oils applied by the manufactuer,most people dont think of the damage caused by the cleaners they use ,some aerosols eat away the fine oil that lubricates the pitch control sliders making them dry and brittle eventually cracking producing odd random performance issues,

hope this helps,cheers Misterdj

try replacing the drive belt with brand new one and see if this improves the situation

http://www.numark.com/content56791.html
here u go matey

There is nothing wrong with your turntables. The Strobe dots are only a guide to give you an idea of the speed your platter is rotating. Nothing more, nothing less. The pitch control decal is not 100% accurate, it is simply a guide to tell you where the 6% position lies, 3.3%, etc.

As long as the quartz lock function works, and the large middle strobes are nice and solid, and do not move, your fine.

You can check out these videos for more insight into these wonderful turntables:

http://www.DJPROLAB.com


- Optic
Digital Analog Therapy
www.repairny.com
www.1200s.com

on top of the pitch control there is a small hole, in this hole you can use a small screw driver  and turn it left and right to free any dirt inside this is the master pitch control

so what does the turntable do at 0?