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Confidential
4.6 Troubleshooting on Operational Panel
4.6.1 Nothing is displayed on the LCD.
4.6.2 LED is not lit.
4.6.3 Unable to perform panel operation
<User Check>
- Check whether the function lock is not set.
Step
Cause
Remedy
1
AC cord failure
Replace the AC cord.
2
Panel PCB harness
connection failure
Check the connection of panel PCB harness
and reconnect the harness.
3
Panel key PCB harness
connection failure
Check the connection of panel key PCB
harness and reconnect the harness.
4
Panel key PCB failure
Replace the top cover ASSY.
5
Power supply PCB failure
Replace the power supply PCB ASSY.
6
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
AC cord failure
Replace the AC cord.
2
Panel key PCB harness
connection failure
Check the connection of panel key PCB
harness and reconnect the harness.
3
LED harness connection
failure
Check the connection of LED harness and
reconnect the harness.
4
LED failure
Replace the top cover ASSY.
5
Power supply PCB failure
Replace the power supply PCB ASSY.
6
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Panel unit installation failure
Reinstall the panel unit.
2
Panel key PCB harness
connection failure
Check the connection of panel key PCB
harness and reconnect the harness.
3
Panel key PCB failure
Replace the top cover ASSY.
4
Power supply PCB failure
Replace the power supply PCB ASSY.
5
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for HL-S7000DN Series
Page 176: ...3 8 Confidential 5 LUBRICATION There are no applicable parts ...
Page 181: ...3 13 Confidential 3 Ink Refill Unit Ink refill unit Hook Clamp Hook Hook Hook Engine PCB ASSY ...
Page 245: ...3 77 Confidential 8 Close the Top cover Fig 3 80 Top cover Front ...
Page 356: ...4 13 Confidential Print start position adjustment pattern Fig 4 6 A ...
Page 358: ...4 15 Confidential All patterns Fig 4 7 B C B C A ...
Page 359: ...4 16 Confidential Fig 4 8 D E D E ...
Page 360: ...4 17 Confidential Fig 4 9 G F B C B C ...
Page 421: ...5 33 Confidential ENGN ALL Fig 5 20 ...
Page 422: ...5 34 Confidential MAIN TOP Fig 5 21 ...
Page 423: ...5 35 Confidential MAIN BTM Fig 5 22 ...