5  Replacement
85
CL4NX/CL6NX Service Manual
5.9
Replacing the FPGA PCB (CL6NX Only)
Required tool:
• Phillips screwdriver (JIS #2 or equivalent)
1 Make sure that the printer is in power off mode, then disconnect the power cord from 
the AC outlet.
2 Remove the left housing cover.
Refer to Section 5.1.1 Remove the Left Housing Cover.
3 Disconnect the CN1 connector . on the 
FPGA PCB 
3.
4 Remove two screws $ attaching the 
FPGA PCB 
3 to the bracket.
5 Remove the FPGA PCB 3 from the 
FPGA connector 
/ on the main 
(CONT) PCB.
6 Replace the defective FPGA PCB 3
with a new FPGA PCB 3.
7 Perform the assembly with the reverse 
procedure.