Read Sharp LB-1085 Service Manual online
LB-1085
TROUBLESHOOTING
7 – 5
5 THE DISPLAY IS NOT SHOWN. / DISPLAY ABNORMALITY
6 THE REMOTE CONTROLLER DOES NOT WORK.
Abnormality
No abnormality
Is there any abnormality or setting mistake in the adjust-
ment and setting?
ment and setting?
Adjust and set again with the menu.
No
Yes
Does the signal input match the input selection?
Match the input source.
No
Yes
Is the graphic board proper?
Is there no problem in the resolution?
Is there no problem in the resolution?
Replace the graphic board, or set the resolution again.
Abnormality
No abnormality
Is there no abnormality in the video input signal?
Replace the abnormal parts.
Is there no abnormality in the video cable?
Is the video signal special? (out of support)
Is the video signal special? (out of support)
Abnormality
Yes
Is the menu displayed in the signal input state?
No abnormality
Is there no abnormality in the LCD module and its related
sections?
sections?
Is there no abnormality in the connection cables and
the connectors?
Is there no abnormality in the control PWBs?
the connectors?
Is there no abnormality in the control PWBs?
Abnormality
Abnormality
Is there no abnormality in the main/power interface PWB
and the related sections?
and the related sections?
Replace the abnormal parts.
Is there no abnormality in the cables and the connectors?
Is there no abnormality in the main PWB?
Is there no abnormality in the main PWB?
Is there no abnormality in the main/power interface PWB
and the related sections?
and the related sections?
Is there no abnormality in the cables and the connectors?
Is there no abnormality in the main PWB?
Is there no abnormality in the main PWB?
Exhausted
No abnormality
Is the battery of the remote controller exhausted?
Replace the battery.
No abnormality
Abnormality
Abnormality
Is there no abnormality in the main/terminal PWB and
the related sections?
the related sections?
Replace the abnormal parts.
Is there any abnormality in the switch/LED PWB and
the related sections?
the related sections?
Is there no abnormality in the connection cables and
the connectors?
Is there any abnormality in the switch/LED PWB?
the connectors?
Is there any abnormality in the switch/LED PWB?
Is there no abnormality in the cables and the connectors?
Is there no abnormality in the main/terminal PWB?
Is there no abnormality in the main/terminal PWB?
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