Keyboard Replacement; Keyboard Servicing - CAS LP-II Service Manual

14 Servicing and Parts Replacement

14.9 Keyboard Replacement

Make sure th at the Main Power switch is OFF & that the scale is
unplugged.
1. Remove the platter from the platform & all labels& backing
paper from the printer.
2. Remove the keyboard:
A. Remove the 2
upper case.
B. Remove the keyboard grounding screw on
the Main PCB.
C. Unplug the keyboard cable from J7 on the
Main PCB.
3. Reattach a new keyboard, reassembling in reverse order.
14

.10 Keyboard Servicing

1 . Follow steps 1, 2, & 3 from 0 14.9 Keyboard
2 . Remove all 15 screws from the Keyboard PCB.
3 . You can now replace any switch that is not working. Remember that each switch has 4 pins
so ldered to the keyboard PCB.
4 . You may also replace any of the Keyboard Under-lays being careful not to loose or misalign any of
th e Key Knobs.
5 . Once done, reassemble in reverse order. Be very careful not to over tighten the keyboard PCB
s c rews.
keyboard screws on top of the
Replacement
55
.