Yamaha disklavier DS6M4 PRO Podręcznik konserwacji - Strona 22

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6. Regular field servicing

6 - 2. Removing / re-installing hammer sensor

Removing hammer sensor

Remove the 2 mini DIN connectors. ( for Hammer and key sensor )

Loosen and remove the hexagonal screws and hold up the sensor straight up slowly to avoid gray-scale

shutter damage.

Re-installing hammer sensor

1, Put up the sensor above the action with a slant.

2, Check the both sensor attaching bolt in the middle and shutter checking hole together.

3, Put on the sensor solowly to the flat position.

4, Execute the sensor caliblation,

( It takes around 3 minutes to complete.)

Note: No height adjustment is necessary but needs always caliblation to get correct height information.

always after removing, by using PRC100 controller.

MHB23 MKIV/PRO DIOV1.05, SCV.1.01 PAGE.20

You can work this adjustment

under Stand-by mode.