Sony MSW-900P Operation Manual page 127

The current shutter setting appears for about 3 seconds in the setting
change and adjustment progress message display area of the
viewfinder screen.
E.g.: SS : 1/250 or : ECS : 60.0 Hz
3
Before the message from step 2 disappears, push the SHUTTER
selector to SEL again and repeat until the desired mode or speed
appears.
Pushing the SHUTTER selector to SEL repeatedly allows you to
4
cycle through the settings of mode and speed preselected on the SHT
ENABLE page of the OPERATION menu.
Note that all modes and all standard-mode speeds listed in the table
on page 4-12 are preselected using the SHT ENABLE page of the
OPERATION menu.
Standard mode
1/100 ( or 1/60 ) 1/125 1/250 1/500 1/1000 1/2000
ECS mode
4-15
Chapter 4 Adjustments and Settings for Recording