Converters.TV 858 Operation Manual page 4

OSD
1. Press the top panel's button once to switch in between CV/SV. When input
source is disconnected the OSD will show "No Signal".
2. Press the top panel's button for 3 second to bring up OSD manual.
3. When the device is under PC mode the OSD will display input format and
output timing, source detection, PC monitor's EDID and firmware version as to
above picture.
4. When the device is under HD mode the OSD will display input format and
output timing, frame rate conversion selection, video system and firmware version
as show in below picture.