Majella MCVC Manuel de bricolage - Page 12

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Trimming

Step 1: Use a multimeter and a small flat

screwdriver. Measure at the measurement

point as shown in figure 11. Trim the

potentiometer until a voltage of about

10.6V is set.

Step 2: Connect a Midi keyboard and play A

notes. Measure the output pitch voltage on

channel 1 (See figure 12).

Play note A in different octaves until you

have a note A, which is close to 4V.

Trim it to exactly 4.000V (or as close as you

can get).

Figure 11:

Figure 12:

differ)

DIY Manual

10.6V start point

A4 should be 4V. (Octave can

MCVC