Casio QT-6600 Service Manual page 22

K. Removing the Main PCB (E830-1)
K-1. Unplug 10 connectors and 2 FPCs.
K-2. Remove six nuts.
K-3. Remove seven screws and remove the Main PCB (E830-1).
Screws (S9)
Screws (S9)
Screws (S9)
L. Removing the MCR
L-1. Disengage and remove the MCR Unit from the Main Unit.
L-2. Remove two screws and remove the MCR Unit.
L-3. Unplug the connector.
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