Troubleshooting For Other Problems; Machine Does Not Turn On; Cannot Update Firmware; Cannot Save Data In Usb Flash Memory - Brother ADS-3000N Service Manual

4.7

Troubleshooting for Other Problems

4.7.1 Machine does not turn ON

<User Check>
- Check that the power cord or DC plug is connected to the host correctly.
Step
1 Rubber key attachment failure
Connection failure of the panel PCB
2
harness
3 Power cord failure
4 AC adapter failure
5 Panel PCB failure
6 Panel unit failure
7 Main PCB failure

4.7.2 Cannot update firmware

<User Check>
- Make sure that there is no other function running.
Step
Firmware version does not match
1
2 Main PCB failure

4.7.3 Cannot save data in USB flash memory

<User Check>
- Check that the USB flash memory is inserted into the USB terminal correctly.
- Replace the USB flash memory and try saving data again.
- Check that the USB flash memory is not write-protected.
Step
1 Rubber key attachment failure
Connection failure of the panel PCB
2
harness
Connection failure of the USB host
3
PCB harness
4 Rubber key failure
5 Panel PCB failure
6 USB host PCB failure
7 Main PCB failure
Cause
Reattach the rubber key.
Reconnect the panel PCB harness.
Replace the power cord.
Replace the AC adapter.
Replace the panel PCB ASSY.
Replace the panel unit.
Replace the main PCB ASSY.
Cause
Install the latest version of the firmware.
(Refer to
Replace the main PCB ASSY.
Cause
Reattach the rubber key.
Reconnect the panel PCB harness.
Reconnect the USB host PCB harness.
Replace the rubber key.
Replace the panel PCB ASSY.
Replace the USB host PCB ASSY.
Replace the main PCB ASSY.
2-25
Remedy
Remedy
"1.1" in Chapter 4.)
Remedy
Confidential