Chapter 6. Troubleshooting Table; Failure Diagnosis By Led In Front Of Cabinet; Led Flashing Specification At The Time Of An Error (Power And Timer Icon Led Used) - Sharp LC-60LE660U Service Manual

CHAPTER 6.
LC-60LE660U TROUBLESHOOTING TABLE

[1] Failure diagnosis by LED in front of cabinet

Is the Power and Timer Icon flashing?
Check " Picture does not display.".

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

1. Display method
• Since Power and Timer 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
POWER indicator
TIMER indicator
Table 1. Concrete flashing pattern
Item
Inverter/Lamp system failure
Power PWB
failure
(Power failure, etc.)
Main PWB
failure
(Communication
failure, etc.)
Others
VerUP executing
VerUP succeeded
VerUP failed
ROM data failure
*1: When there is no SLEEP/OPC LED, use another LED.
*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 process screen.
*4: If the boot section is abnormal, there is no flashing (flashing impossible).
START
Yes
Check "[2] LED flashing specification at the time of an error (Power and Timer icon LED used)".
No
No
Is the Power Icon lighting
Check Power-Unit and AC-cable.
When AC plug on?
Yes
No
Is the Backlight lighting? Check " LED Backlight does not turn on.".
Yes
Detail display
POWER indicator
Flashes once
Flashes twice
Flashes 3 times
Flashes 4 times
Green flashes continuously.
POWER (Green) and SLEEP/OPC(*1) flash alternately.
Green flashes fast.
Green flashes fast.
Service Manual
TIMER indicator (*1)
Flashes once Lamp error
Flash once Power supply error 1 (*2) AC_DET error
Flash twice Power supply error 2 (*2) UR+13.5V error
Flash 3 times Power supply error 3 (*2) D+3.3V error
Flash 5 times Power supply error 5 (*2) Panel power supply
error
Flash 6 times Power supply error 6 (*2) DRC power supply
error
Flash 7 times Power supply error 7 (*2) FRC power supply
error
Flashes once Initial communication error
Flashes twice Start-up confirmation communication error
Flashes 3 times Regular communication error
Flashes 5 times Other communication error
Flashes once Temperature error
Flash twice Synchronism error
Flashes 3 times Notification from the main microprocessor (*3)
OFF Sub microcomputer version upgrading
Sub microcomputer version upgrade succeeded
OFF Version upgrade failed
OFF Start-up after failing version upgrade (*4)
6 – 1
LC-60/70LE660U,C6600U
Cause