Technics SL-1210GREB Service Manual page 7

2.2.2. Precautions for servicing
 Note for assembly and disassembly
• When turning the unit over, be sure to close the dust cover or put a cardboard as a base, and place the unit on a soft thick cloth
or cushion, etc, to prevent cracking.
• When removing the DC motor unit and tone arm unit, be sure to attach a soft cloth inside the dust cover beforehand to prevent
cracking.
 Note after replacing the main PCB, DC motor unit and pitch PCB
• After replacing the main PCB, perform "PITCH ADJ center position adjustment" and "amountic adjustment".
• After replacing the DC motor unit, perform "amountic adjustment".
• After replacing the pitch PCB, perform "PITCH ADJ center position adjustment".
(For details of each adjustment, see "8 Measurements and Adjustments".)
 Note when moving the unit
Repackage the unit in the packaging it came in.
If you no longer have the packaging, do the following:
• Take off the turntable and turntable mat and carefully wrap them.
• Remove the head shell and balance weight from the tone arm and carefully wrap them.
• Clamp the tone arm with the arm clamp and tape it in place.
• Carefully wrap the main unit in a blanket or paper.
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