Sharp LC-52LE920UN - Page 59

LC-52LE920UN/LC-60LE920UN
If itis not an error of power supply/LED driver,
It is start-up in the lamp error disregard mode.
4
| Do you start?
' YES
| Does all LED of one line are not lighting?
+ No
| It doesn't light in 1 piece.
| All LED boards including LED that doesn't light are exchanged.
YES
TP1 of LED board on the power supply side is confirmed.
Does the voltage hang?
' NO
harness exchange
YES
Is the LED board connected with CN2?
' YES + NO
TP1 of the next LED board connected with CN2 is confirmed.
Does the voltage hang?
Even if the short-circuit connector is exchanged, do not you
light?
' YES ’ NO ¢ YES , NO
| The next LED board is seen. | | LED board exchange. | THE END.
If it is not an error of power supply/LED driver,
It is start-up in the lamp error disregard mode.
+
| Do you start?
4 NO
| Is connected connector (LA1) with the first high LED board of the power supply board removed and do it start?
‘ YES
| All LED boards and the harness connected with LA1 are exchanged.
y NO
Is connected connector (LA2) with the LED board second on the power supply board removed and do it start?
' YES
All LED boards and the harness connected with LA2 are exchanged.
v NO
Is connected connector (LA3) with the LED board third on the power supply board removed and do it start?
y YES
All LED boards and the harness connected with LA3 are
exchanged.
All LED boards are exchanged.
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