Sharp SL-5500 Service Manual page 41

4. Key Top A1, A2, A3, B, C assembly
Engage the Key Rubber B rim with the groove on the back of each
key top.
Note: Be careful not to damage the Key Top Projection.
Use the notch in the brim of Key
Top B and the groove in the
Key Rubber as the reference for
installing position.
Key Top A1
Key Top A3
Key Top A2
Fit the Key Top B rib with the groove.
(Be careful to the direction.)
Reference of installing position
Notch in the brim of
Key Top B
5. Key Rubber B assembly
Push and fit the Key Rubber B positioning holes (4 7 positions) with
7 ribs of the Slide Cover Cabinet.
Note: (1) Before installing the Key Rubber B, check that each
Key Top is securely installed.
(2) When taking/reversing the Key Rubber B, be careful
not to drop the Key Top.
(3) Be careful to prevent the Key Rubber/Key Top from
covering the cabinet ribs and key holes.
Key Top B
Key Top C
Attach the
projection to the
lower side.
Notch in the rib of
Key Rubber B
Key rubber B
SL-5500 DISASSEMBLY AND ASSEMBLY
6. Key PWB Unit assembly
(1) Fit the Slide Cover Cabinet positioning rib with the notch of the
Key PWB.
(2) Attach the Key Cabinet Pawls (2 positions) to the Key PWB.
Note: (1) Before installing the Key PWB, check that the Key
Rubber and the Key Top do not cover the cabinet rib
and the key hole.
(2) Do not touch the pattern section of the PWB to keep
the pattern section clean.
(3) Be careful that the PWB notch and boss holes do not
cover the Key Cabinet rib and boss.
Key Cabinet Pawl
7. Screw B (x 4) tightening
(1) Be careful not to apply an excessive force.
(2) Do not touch the PWB contact with bare hands.
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PC-UM10M
Key PWB