TITLE
Model
DOCUMENT NO.
PAGE
CN70 Service Work Instructions
CN70A,CN70E
SWICN70-000
Page
16
of
45
OPERATION:
Battery Board
The Battery board hosts the pogo pin connection to the main battery, the reset switches, and the main unit backup
power supercap. The CN70A & CN70E use the same battery board part number.
Tools Required
Description
Part Number
T10 Torx driver
T7 Torx driver
Parts Required
Item Part Number
Description
Qty
1
224-856S-0300 Battery Board Assembly
1
2
800-569-001
SCREW 2-56X3/16 FH TORX W/NYL CRES ROHS
4
3
655-490-001
Seal, reset button
1
Removal
1. Remove the bottom housing assembly (refer to Bottom Housing operation).
2. Using a T7 torx driver remove 4 screws that secure the battery board to the core assembly.
3. Gently lift the battery board straight off the magnesium frame unplugging it from its connector to the keyboard
PCB assembly.
NOTE: CN70A shown below. CN70E is similar.
Installation
1. Position the battery board assembly over the magnesium frame lining its connector up with the mating connector
on the keyboard PCB assembly.
2. Press down over the connector to seat the battery board into position on the magnesium frame.
3. Using a T7 torx driver install 4 screws and secure the battery board to the magnesium frame with 2.5+/-0.2 in-lbs
of torque.
4. Replace button Kapton seal as needed with version that has holes as shown below.
5. Re-install the bottom housing assembly.
Connection
to keyboard
PCB
assembly
1
2
3
