Wired Lan Mac Address Not Registered; Wireless Lan Mac Address Not Registered - Brother MFC-J3520 Service Manual

Error Code E2

Unable to Print E2

Wired LAN MAC address not registered.

Step
1 Main PCB defective
Error Code E3

Unable to Print E3

Wireless LAN MAC address not registered.

Step
1 Wireless LAN PCB ASSY
connection failure
2 Wireless LAN PCB defective
3 Main PCB defective
Error Code E6

Unable to Print E6
Main PCB ASSY EEPROM write error
Step
1 Main PCB defective
Error Code E9

Unable to Print E9
NFC PCB initialization failed.
Step
1 NFC PCB harness connection
failure
2 NFC PCB defective
3 LCD PCB ASSY defective
4 Main PCB defective
Cause
Replace the main PCB ASSY.
Cause
Reconnect the wireless LAN PCB ASSY.
Replace the wireless LAN PCB ASSY.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
Cause
Reconnect the NFC PCB harness.
Replace the NFC PCB.
Replace the LCD PCB ASSY.
Replace the main PCB ASSY.
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LCD
Solution
LCD
Solution
LCD
Solution
LCD
Solution
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