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Jun. 2005
3. Then, using the screws, fasten the LOW and HI PCBs to the chassis from
the center of the keyboard, that is, from the LOW PCB as shown in fig.5.
While you are screwing down the PCB, it may float from the chassis.
To avoid this, after screwing in the PCB at the center of the keyboard,
screw down opposite end, before screwing in other areas in the middle of
the PCB. (See fig.5)
In addition, the PCBs may be warped by soldering, etc.
It is recommended that each PCB be fastened screws while holding down
the middle of the PCB lightly.
Finally, screw down the adjacent area between the LOW and HI PCBs.
fig.keyboard-
5e
Note: When using an electric screwdriver, be careful of the torque.
If excessive force is applied, the PCB may break or chip.
(Suitable torque; 8kgf/cm)
Key removal
Hold the tip of the key, put pliers into the bearing side, and spread out.
(Refer to fig.6.)
fig.keyboard-
6e
Fig. 5
Between LOW
and HI PWBs
*1 *1 *1 *1 *1 *1
12 3
: Screw positions *1: Use of these screw holes is not necessary, but if the chassis hooks are broken,
use these holes for inserting screw.
Pliers
Hold this position
A
Fig. 6
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