Sharp LC-50U35T Service Manual page 10

LC50/58/65U35T
2.2.3 How to upgrade the software
1. Prepare the following items before working.
USB memory (Copy the file to a USB memory)
AC code
2. Connect USB memory.
* Insert the USB Memory for version upgrade into the service socket (USB2 or USB3 port)
3. Connect AC-code Pushing POWER key
*Upgrade software starts automatically.
*MAIN softwares are written at the same time.
*The upgrade menu is displayed after about 10second.
*Never turn off the power while upgrading.
*Please check the "LED pattern", If you are unable to check the monitor.
*LED pattern detail is please check the "VerUP LED pattern of USB version UP" below.
4. It is completion if displayed, "UPGRADE SUCCESS".
*Check Upgrade condition. "100%"
5. If you failed to upgrade, "E999" is displayed.
6. Disconnect AC Plug and USB memory.
VerUP LED pattern of USB version UP
Ver UP LED
Case of Ver UP OK
WHITE
Writeing
500ms
High
Low
Completion 250ms
High
Low
Fail
High
Low
MAIN Ver CHECK
If you tried upgrade some times but still E999 is displayed,
please give feedback to the service center.
500ms
250ms
200ms 800ms
5 – 2
Case of Ver UP Error