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5-3. Replacing the U-CASE
(1) Remove the U-CASE-UNIT from DT-X100. (Refer to 2-2.)
(2) Remove the following parts from the defective U-CASE-UNIT.
• SPEAKER & SP-CUSHION, ANT-UNIT, PW-SUB-ASSY, and SP-HOLDER (Refer to 5-1.)
• KEY2-UNIT & SPACER-BLOCK, TEN-KEY-SUB-ASSY (Refer to 5-2.)
(3) Assemble the above removed parts on the new TOKU-U-ASSY. (Refer to 5-1 and 5-2.)
NOTE: The double faced tape KEY-TAPE for attaching the TEN-KEY-SUB-ASSY and the double faced tape
PW-TAPE for attaching the PW-SUB-ASSY are already attached to the TOKU-U-ASSY. Therefore,
assemble the respective parts after peeling off PET release paper (KEY-TAPE) and release paper
(PW-TAPE).
NOTE: Be sure to use the new double faced tape SUP-TAPE that is used for the power supply terminal of
the KEY2-UNIT.
NOTE: If a protective sheet is attached to the back side of the display part of the TOKU-U-ASSY, peel it off .
(4) Assemble the I-CASE-UNIT on the assembled U-CASE-UNIT, then assemble the L-CASE-UNIT on them.
(Refer to 2-2 and 2-1.)
5-4. Replacing the DP-PANEL2
(1) Remove the U-CASE-UNIT from DT-X100. (Refer to 2-2.)
(2) While paying attention not to damage the U-CASE and keys, push the DP-PANEL2 from the back to
make a gap, then insert your nail into the gap and peel off the DP-PANEL2 from the U-CASE.
(3) By using scotch tape or the like, completely remove the old double faced tape DP-TAPE from the
U-CASE so that no residue remains.
(4) If the FILTER/SPEAKER is damaged when you remove the residue of the DP-TAPE, replace it with the
new one.
(5) First, peel off the release paper on the center trigger key side of the DP-TAPE starting from its cut
sections. Then, attach that peeled section of the DP-TAPE to the U-CASE while aligning the corners of
the positioning holes in the DP-TAPE with those of the display opening in the U-CASE.
In this case, be sure that the positions of the key holes in the DT-TAPE coincide with those of the center
trigger key and the cursor keys.
Cut sections
Peel off the center
trigger key side.
FILTER/SPEAKER
— 36 —
Positioning holes
Reference position for attaching:
Corners of the case opening and
those of the tape positioning holes
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