SATO CG4 Series - Operator Panel (KB) Board Replacement

Section 7: Replacement Procedures
Page 7-8
CG4 Series Service Manual
7.6 OPERATOR PANEL (KB) BOARD REPLACEMENT
This circuit board provides the user interaction functionality via Operator buttons.
7.6.1 Operator Panel Board Replacement (For CG408 DT and CG412 DT Direct Thermal printer)
1. Ensure the printer is turned off, and remove the power
cable.
2. Lift the Top Cover.
3. While pressing and hold down the top portion of the print
head assembly
(see arrow ), slide the side tab ()
downward to unlock the print head assembly. Shift the
print
head assembly
to the right and pull the whole print head
assembly
downward.
Removing the
print head assembly reveals the screw
attaching to the top of the
cover frame.
4. Remove five screws (circled) from the frame of the Top
Cover
and remove the frame from the Top Cover.
5. Remove the two screws (circled) securing the Operator
Panel (KB) board
to the underside of the Top Cover.
6. Disconnect the cable connector (circled) from the defec-
tive
Operator Panel (KB) board.
Print head
assembly
2
1
3
1
2
screw x 5
Blue buttons
Operator Panel board
route neatly