Sony SEG-2550 Operating Instructions Manual page 13

_ This section introduces the basic operation such as changing
a picture by cut, mixing or wipe and inserting a picture into
another picture (keying), etc.
START
Check that the power and equipment to be used are correctly
connected, and set the POWER switch toON. The power is
tumed on, and the buttons on the operation panel are lit as
shown below.
Display monitor
Program monitor Preset monitor
, Screens when the power is turned on
13
BASI OPE Jag