Roland E-50 Service Notes page 29

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Aug. 2006
1.10. BALANCE potentiometer check
Turn the BALANCE potentiometer all to the left (ACCOMP) and check that the display shows the value 0 (near the writing Balance:)
Turn the BALANCE potentiometer all to the right (KEYBOARD) and check that the display shows the value 127
Bring the BALANCE potentiometer to the central position and check that the display shows the value 64
Durino the test check that the potentiometer runs smoothly and in particular make sure that it "clicks" in its central position.
If all the tests were carried out correctly, the display will show a "marking" symbol.
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