Sharp LC-20SD5E Service Manual page 20

RE-WRITE FOR DIGITAL SOFT FIRMWARE
13. When the "Uploading inprogress" bar reaches a right edge, the Writing for Digital Soft Firmware will start.
During the writing for Digital Soft Firmware, writing message will appear on the screen.
Finish the writing for Digital Soft Firmware, writing message will disappear.
14. Unplug the AC cord, and remove the Serial Communication Change JIG(JG201).
15. Insert the AC cord again.
After the write, set to the initializing of shipping.
16. Turn on the power.
17. Press both VOLUME DOWN button on the set and Channel button (1) on the remote control for 2 seconds.
The set will turn into the standby mode.
Check for the Firmware Version
18. Turn on the power.
19. Press both VOLUME DOWN button on the set and Channel button (2) on the remote control for 2 seconds.
When the changed version displays, the Re-write will be completed.
20. Select the "Disconnect" from File menu.
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