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Posted by DJ Charlie on Jun-23-2003 04:59:

Testing a used Technics

I bought a used technics...
I have 30 days to test it... if I'm not happy with it...I get full refund...
But how to test it to see if all parts are ok for at least a year ?
of course ... Buy mixing with it.. if everything goes ok... I'll be
pretty sure the pitch and motor work fine... but are the other parts in good condition ?

Any tips ?

Posted by Tiger777 on Jun-23-2003 07:23:

the technics are so well built that even after 30 years they're in a good shape. But, generally, things you shoud check:
-Tonearm: See if it doesn't skip and it stayes in the sleeves
-Pitch fader: Check if there isn't any damage on it
-The little pop-up light should be working, otherwise, for 5�, you can get it repaired

that's about all i can think about for now, but, don't worry, buying a technics in 2nd and even in 3th hand isn't a problem. They're 100% quality

Posted by Nrg2Nfinit on Jun-23-2003 11:42:

test the accuracy of the pitch control using hte red light on the on button

@ -3.3 % picht the bottom dot on the plate should be still from the effects of the light

@ 0 % pitch the big dot on the plate should be still (second up from bottom dot)

@3.3 % pitch the second dot from teh top should be still

and @ 6 % the top dot should be still from teh effects of the red light

this should be a close range.. it doesnt have to be perfect.. but it just goes to show you the accuracy of the pitch controll

make sure that if the pitch controll is set that the movements of the dots on the plate due to the light dont fluctuate.. this means that htere is somehting wrong with the pitch controll

good luck testing and i hope everything works out for you

Posted by Sharpy on Jun-23-2003 12:20:

Start and stop time.

(Time it takes the platter to reach full speed and time it takes to completely stop)

Shouldn't be much more than 45 degrees. (If that doesn't make sense let me know and i'll try to explain more)

Posted by DJ Charlie on Jun-23-2003 15:03:

quote:
Originally posted by Sharpy
Start and stop time.

(Time it takes the platter to reach full speed and time it takes to completely stop)

Shouldn't be much more than 45 degrees. (If that doesn't make sense let me know and i'll try to explain more)

I have an idea of what you're talking about... but should this be tested on 33rpm or 45rpm ?

Also I tested the pitch accuracy... everything was ok... only one thing, it took more time for the dots to start going faster than 0 point on the positive side of the slider than the negative side.
like when the green light on the pitch turned off on the negatives... the 0 dots started to change... when the light turned off on teh positives... it took a millimeter more so the dots could start changing.

Does that mean I have 2 zero point ?

Posted by Sharpy on Jun-24-2003 12:46:

sorry, 45 rpm dude

Posted by bachatu on Jun-24-2003 14:42:

You can inspect if antiskate is working or if the bearings are screwd on the tone arm.
Take off any cartridge that is on the tone arm (make sure you remove any records that are playing). Then, set the tone arm weight to 0, until the tone arm floats evenly over the platter. See that the antiskate setting is set to 0... then, move the tone arm closest to the center part of the platter and let go. It should stand float and stand still... then, change the antiskate setting and increase to 1,2 then 3.. the tone arm should gradually start floating back to the tone arm rest as the settings are increased.

Posted by DJ Charlie on Jun-25-2003 01:37:

quote:
Originally posted by bachatu
You can inspect if antiskate is working or if the bearings are screwd on the tone arm.
Take off any cartridge that is on the tone arm (make sure you remove any records that are playing). Then, set the tone arm weight to 0, until the tone arm floats evenly over the platter. See that the antiskate setting is set to 0... then, move the tone arm closest to the center part of the platter and let go. It should stand float and stand still... then, change the antiskate setting and increase to 1,2 then 3.. the tone arm should gradually start floating back to the tone arm rest as the settings are increased.

Wow... thats a hell of an inspection... I'll try that out.
thanks

I should have my table on thursday