Fip-1.24 Mcu Pwb Eeprom Error - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

FIP-1.24 MCU PWB EEPROM Error

Step Check point
Perform the preliminary inspection.
1
Parts to inspect: COMMUNICATION ASSY, MCU PWB
Isolation: Engine or Controller?
Run the Engine test print or diagnostic test print.
2
(10 sheets for each of single and continuous print)

Are the outputs normal?
Check: MAIN HARNESS ASSY

Does the MAIN HARNESS ASSY have continuity
3
between the COMMUNICATION ASSY and the MCU
PWB?
Check: COMMUNICATION ASSY replacement
4
Replace the COMMUNICATION ASSY.

Does the problem still occur?
Check: MCU PWB replacement
Return the COMMUNICATION ASSY and replace the
5
MCU PWB with a new MCU PWB (ASP).

Does the problem still occur?

6
Does the problem occur when the printer is turned on?
Replace the installed MCU PWB with another new one
7
(ASP) and then turn the printer back on.

Does the problem still occur?
1. Replace the MCU PWB with the originally installed MCU
PWB.
2. Activate the Diagnostic commander and execute the
8 "Slave Initialize". (Refer to Section 4.2.4.5.)
3. Execute the "NVM Write". (Refer to Section 4.2.4.5.)
4. Turn the printer on.

Does the problem occur when the printer is turned on?
Check: MAIN HARNESS ASSY electrical continuity

Does the MAIN HARNESS ASSY have proper
9
continuity at the pins below?
- J16<=>J22
Chapter 5 Troubleshooting
Yes
Replace/reinstall the defective part(s).
Check the Controller PWB.
If the problem still occurs, go to step 3.
Go to Step 4.
Go to Step 5.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
Problem solved.
Remedy
No
Go to Step 2.
Go to Step 3.
Replace the MAIN HARNESS ASSY.
Problem solved.
Problem solved.
If any other error/status message
appears, go to the relevant FIP.
Problem solved.
Problem solved.
Replace the MAIN HARNESS ASSY.
Revision A
5-41