Keyboard Pa-4A88-C2 Circuit Board - Roland HP-335 Service Notes

HP-335
Installing the PA-4A board
As shown in Fig.3, place the board against the hook
part a of the sub-shassis, and screw the board into the
sub-shassis.
Screw in order, from the round hole(positioning hole)
on the connector side.
Be sure to screw manually. (Care should be taken to
avoid screw damage.)
P-Tight Bind 3 × 6
Greasing points
After the key or hammer has been replaced, the speci-
fied grease must be applied to the following 4 points
as shown in Fig.4.
Fig.4
1. Froir GP-1RS....gray (PNo. 17049544)
(a) Key and hammer bearing section
(b) Key and hammer joint section (actuator
section)
2. Froir G-336A....white (PNo. 17049543)
(a) Side of guide bushing for white key and
black key
1-a
Fook a
Fig.3
2-a
1-b
Fig.4
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KEYBOARD PA-4A88-C2 CIRCUIT BOARD

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Nov. 1998
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