Assembling The Keyboard Assembly - Yamaha PSR-1500 Service Manual

PSR-1500/PSR-3000
19.

Assembling the Keyboard Assembly

19-1. Install the white keys GEGB from the lower notes.
(Fig. 14)
19-2. Install the white keys DFA and C'. (Fig. 14)
19-3. Install the black keys from the higher notes, and tighten
the twenty-one (21) screws marked [140]. (Fig. 14)
* To install the white and black keys, insert the
projections of the keys into the respective slots
[C] on the frame first. (Photos 3, 4, 5)
Black key
[140]: Bind Head Tapping 3.0x16 MFZN2BL (VB205200) or
Bind Head Tapping 3.0x16 MFZN2B (VS756700)
Projection Projection
White White
key key
(Photo 3)
22
[140] x 21
White key DFA
White key CEGB
White key C'
(Fig. 14)
Black Black
key key
19-4. Install the rubber contacts while pulling the keys up.
(Figs. 15, 16)
* When fitting the rubber contacts, raise both ends
of the frame so that keys do not push the rubber
contact up.
19-5. Install the MK-L and MK-H circuit boards in the assembly
so that the hooks B hold it. (Fig. 17)
MK-L
Projection Projection
(Photo 4)
Rubber contact
(Fig. 15)
Rubber contact
(Fig. 16)
MK-H
,
Hook B
(Fig. 17)
White White
key key
Frame Frame
[C] [C]
(Photo 5)