Dc3A, Dc5A, Dc6A, And Dc7A Full-Function Models; Underside Diagrams For All Models - Yamaha disklavier Mark III Series Maintenance Handbook

4. DC3A, DC5A, DC6A, and DC7A full-function models

Same as full-function models above, except that the following unit is added.
1-beam 4-point hammer sensor

Underside diagrams for all models

(Locations on different models, as viewed from bottom)
GA1,A1
C2
C6
GH1,GP1
C3
C7
3
C1
C5