Chapter 6. Troubleshooting Table; [1] Failure Diagnosis By Led In Front Of Cabinet; Led Flashing Specification At The Time Of An Error (Center Icon Led Used) - Sharp LC-60 EQ10U Service Manual

LC-60/70EQ10U,SQ10U/15U/17U,TQ15U,UQ17U
LC-60EQ10U
CHAPTER 6.
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
400ms
400ms
Table 1. Concrete flashing pattern
Item
Inverter/Lamp system failure
Power PWB
failure
(Power failure, etc.)
Main PWB
failure
(Communication
failure, etc.)
Others
*2: They depend on the system. Power supply error is defined from product to product.
*3: For details, refer to ERROR STANDBY CAUSE on the adjustment process mode.
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
300ms
100ms
Detail display
Slow flashing
Flashes once
Flashes twice
Flashes 3 times
Flashes 4 times
Service Manual
1600ms
Fast flashing
Flashes once
Flash once
Flash twice
Flash 3 times
Flash 5 times
Flashes once
Flashes twice
Flashes 3 times
Flashes 5 times
Flashes once
Flashes 3 times
6 – 1
ON
OFF
Cause
Lamp error
Power supply error 2 (*2) AC_DET error
Power supply error 2 (*2) UR+13V error
Power supply error 2 (*2) D+3.3V error
Panel power supply error
Initial communication error
Start-up confirmation communication error
Regular communication error
Other communication error
Temperature error
Notification from the main microprocessor (*3)