Failure Diagnosis By Led In Front Of Cabinet; Led Flashing Specification At The Time Of An Error (Center Icon Led Used) - Sharp LC-90LE740X Service Manual

CHAPTER 6.
LC-90LE740X TROUBLESHOOTING TABLE

[1] Failure diagnosis by LED in front of cabinet

START
Is the Center Icon flashing?
No
Is the Center Icon lighting
When AC plug on?
Yes
Is the Backlight lighting?
Yes
Check " Picture does not display.".

[2] LED flashing specification at the time of an error (Center icon LED used)

1. Display method
• Since only the center icon LED can be used, slow flashing and fast flashing are combined.
• After recovering from an error, if the same error cannot be generated again, refer to MONITOR ERR CAUSE on the adjustment process mode.
2. LED flashing method
Error flashing
Center icon
Yes
Check "[2] LED flashing specification at the time of an error (Center icon LED used)".
No
Check Power-Unit and AC-cable.
No
Check " LED Backlight does not turn on.".
1600ms
400ms
400ms
100ms
Service Manual
1600ms
300ms
6 – 1
LC-90LE740X
ON
OFF