Hey guys, im new to this forum. I did a search on technics trying to find a similar problem but I didnt find the same problem as this.
The pitch control on my turntables acts a little strange. Its right around the middle when that green light snaps on. The pitch makes a jump. This makes it hard for djing because sometimes the pitch needs to be set inbetween that jump for the right record speed to match the other song. Like the pitch control will behave fine everywhere else, its just in the middle when the green light tuns on. Do u guys know how to fix this?
The pitch control on my turntables acts a little strange. Its right around the middle when that green light snaps on. The pitch makes a jump. This makes it hard for djing because sometimes the pitch needs to be set inbetween that jump for the right record speed to match the other song. Like the pitch control will behave fine everywhere else, its just in the middle when the green light tuns on. Do u guys know how to fix this?
IIRC when the pitch slider is in the middle position and the "light comes on" you are switching back to FG servo control, so the speed will jump to 33.333 exactly.
This would mean that the problem you are experiencing is due to the variable pitch control not being centred around 33.33. By my reading of the Technics schemo you should be able to adjust VR301 to bring the centre point of the pitch control to 33.33.
This would mean that the problem you are experiencing is due to the variable pitch control not being centred around 33.33. By my reading of the Technics schemo you should be able to adjust VR301 to bring the centre point of the pitch control to 33.33.
Hey Mark,
Yah that sounds like exactly what it is. I took off the top plater and slowly adjusted the pot for the pitch control. I dont have an oscilloscope at home so what ive been doing is adjusting it slightly then playing a record on the table, trying to notice if there are any jumps above or below. You turn the screw to the left to raise the pitch at the center and right to lower it. Ive been just going trial and error. Thanks
Yah that sounds like exactly what it is. I took off the top plater and slowly adjusted the pot for the pitch control. I dont have an oscilloscope at home so what ive been doing is adjusting it slightly then playing a record on the table, trying to notice if there are any jumps above or below. You turn the screw to the left to raise the pitch at the center and right to lower it. Ive been just going trial and error. Thanks
There's a Technics FAQ that should be helpful:
http://music.hyperreal.org/dj/sl1200.html
and there's this:
http://www.massive.com/in_tune/technics_pitch.html
The service manual:
http://www.backspin.org/service.html
http://music.hyperreal.org/dj/sl1200.html
and there's this:
http://www.massive.com/in_tune/technics_pitch.html
The service manual:
http://www.backspin.org/service.html
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