3 Display unit and Main PWB unit removal
1. Remove two screws 1 .
2. Remove LCD FPC 2 and remove Display unit 3 .
3. Remove key FPC 4 and remove Main PWB unit 5 .
[Note for assembly]
1. Attach the display side unit to the key upper cabinet.
(1) Connect in the sequence of (1) -- (2) as shown in the figure below.
Close the display side unit (cover).
2. Tighten the return spring to the key upper cabinet with
a screw, then attach the recording/LED indicator re-
lease button.
3. PWB unit screw tightening (2 positions)
4. Battery terminal (+)(–) soldering conditions
Cover lock knob
Return spring
Serial port cover
1
2
3
1
Record
button
Cover lock spring
LED Indicator
release button
Batt. term
Batt. term
Copper foil tape
2
1
Note: Fit teh return spring so that it's protruded portion faces
PWB (inner side).
Return spring
Cabinet unit under
the keyboard
Record button
LED indicator reset button
+
-
*Screw tightening torque:0.8Kg Cm 13%
* Tightening torque: 0.7kgf.cm
15%
+
-
(Soldered state)
Solder tip temperaturn 350 C or less
Soldering time 3sec or less
– 42 –
