Mcu Pwb Removal (Pl13.2.1) - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

3.2.16.5 MCU PWB Removal (PL13.2.1)

When replacing the MCU PWB, perform the following
operations referring to Chapter 4 "Diagnostics".
n Read data prior to replacement, then write the read
data when the replacement is completed.
n Perform "NVM Write" after replacement.
1. Remove the TOP COVER ASSEMBLY. (See Section 3.2.4.3.)
2. Remove the RIGHT COVER ASSEMBLY. (See Section 3.2.4.8.)
3. Remove the CONTROLLER PWB. (See Section 1..)
4. Remove the CONT. CHASSIS ASSEMBLY. (See Section 3.2.17.2.)
5. Disconnect 9 connectors (P/J12, P/J13, P/J14, P/J15, P/J16, P/J17,
P/J18, P/J19, P/J20, and P/J21) for the MCU PWB.
6. Remove 4 screws (silver, cup head, 8mm) securing the MCU PWB
to the printer body and remove the MCU PWB.
Chapter 3 Disassembly and Assembly/Adjustment
Figure 3-140. MCU PWB Removal
Among the screws securing the MCU PWB, fasten the
bottom rear one to attach the earth wire together.
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