Read Sharp RZ-S1120 Handy Guide online
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Page 11 of 12
OSD Disable & Enable Method
1. Please press MENU and for around 7 seconds until OSD showing OSD
locked image.
2. When the OSD function is disabled, all OSD functions include power on/off
will not work.
Click on the first or last page to see other RZ-S1120 service manuals if exist.