Honeywell CK75 - Page 25

TITLE
Model
DOCUMENT NO.
PAGE
CK75 Repair Manual
CK75
L3-GLBL-RPR-4254
(Rev A)
Page 25 of 42
T7 Torx driver
Non conductive pry tool
3M SP3010
Parts Required
Item
Part Number
Description
Qty
1
8754-870900-37
CK75 ALPHANUMERIC KB ASM
1
1
8754-870900-38
CK75 NUMERIC KB ASM
1
Removal
1. Remove the bottom housing assembly (refer to Bottom Housing operation).
2. Remove the core assembly from the top housing (refer to Core Assembly operation).
3. Using a T7 torx driver remove 4 screws that attach the keyboard PCB assembly to the core assembly.
4. Pull the keyboard PCB away from the core assembly unplugging it from its connection to the main logic board.
Installation
1. Position the keyboard PCB assembly over the magnesium frame lining its connector up with mating connector on the
main logic board.
2. Press down over the connector to secure the keyboard PCB assembly into position on the magnesium frame.
3. Using a T7 torx driver install 4 screws and secure the keyboard PCB to the magnesium frame with 2.5+/-0.2 in-lbs of
torque.
4. If this is a replacement keyboard PCB install a new microphone cover over the new keyboard PCB’s microphone. If you
are re-installing the existing keyboard PCB assembly inspect the microphone cover and replace as needed. Make sure the
microphone cover hole is lined up with the hole in the microphone as shown in the picture below.
2
Connection t
o
main logic board