Troubleshooting Table - Sharp LC-60LE831U Service Manual

[3] TROUBLESHOOTING TABLE

• LED Backlight does not turn on.
When main unit is replaced , does it start normally?
YES
Replace main unit.
When power supply unit is replaced, does it start normally?
Replace power supply unit.
When main unit is replaced , does it start normally?
Replace main unit.
When LCD control unit is replaced ,does it start normally?
Replace LCD control unit.
If it is not an error of power supply/LED driver,
It is start-up in the lamp error disregard mode.
en LCD control unit is replaced ,does it start normally?
Replace LCD control unit
When the parts in the panel can be replaced. →Replace all LED-bars in the panel module.
When the parts in the panel cannot be replaced. →Replace panel module.
If it is not an error of power supply/LED driver,
It is start-up in the lamp error disregard mode.
YES
YES
YES
When the parts in the panel can be replaced. →Replace all LED-bars in the panel module.
When the parts in the panel cannot be replaced. →Replace panel module.
LC-40/46/52/60LE835U/830U/832U/LC-60LE831U
Do you start?
YES
YES
Do you start?
NO
NO
NO
NO
6 – 5
NO
NO