16
DGX-620/YPG-625
Frame
Hammer, white key
Hammer, black key
Bearing claw
Hammer axis
Bottom side
Push
<Rear view>
Hammer, W1 (white key)
Hammer, B1 (black key)
Bearing claw
Bearing section
15-8
GHL88H Circuit Board
Remove the black and white key assembly (C5-C7).
(See procedure 15-1.)
Remove the five (5) screws marked [260C]. The GHL88H
circuit board can then be removed. (Fig.13)
15-9
Hammer (White Key), (Black Key)
Remove the black and white key assembly for the
related keys.
With the key frame placed upside down, push the
hammer forward from the rear, then a click sound is
heard and the hammer bearing section can be removed
from the hammer axis of the key frame.
Take out the hammer sideways. (Fig.16, Fig.17)
*
When removing the hammer, take care not to cause
damage to the hammer bearing and its claw.
(Fig.16)
(Fig.17)
