Other Problems; The Machine Cannot Be Powered On; Usb Flash Memory Does Not Function; Data Of Usb Flash Memory Does Not Read - Brother HL-J6000DW Service Manual

4.10 Other Problems

4.10.1 The machine cannot be powered ON

< User Check >
- Insert the power cord securely.
Step
1 Panel flat cable connection
failure
2 LCD flat cable connection
failure
3 LCD defective
4 LCD PCB defective
5 Panel PCB defective
6 Control panel ASSY defective
7 AC cord ASSY or power supply
PCB defective
8 Main PCB defective

4.10.2 USB flash memory does not function

< User Check >
- Check if the USB flash memory is inserted correctly.
- Check that USB flash memory is compatible.
- Check that data form is compatible.
- Format the USB flash memory.
- Load the latest firmware.
- Disconnect and insert again the power cord.
Step
1 Front cover L not mounted in
place
2 Main PCB defective

4.10.3 Data of USB flash memory does not read

< User Check >
- Check that USB flash memory is compatible.
- Check that data form is compatible.
- Format the USB flash memory.
- Load the latest firmware.
Step
1 Main PCB defective
Cause
Reconnect the panel flat cable.
Reconnect the LCD flat cable.
Replace the LCD.
Replace the LCD PCB ASSY.
Replace the panel PCB ASSY.
Replace the control panel ASSY.
Replace the AC cord ASSY or power supply
PCB ASSY.
Replace the main PCB.
Cause
Set the front cover L into place in the case the
USB flash memory won't be inserted smoothly.
Replace the main PCB.
Cause
Replace the main PCB.
2-90
Solution
Solution
Solution
Confidential