Sony RM-M7G Service Manual page 7

1. GENERAL DESCRIPTION
Gamma adjustment block
[13] MASTER GAMMA adjusting screw
You can control the gamma manually by turning this
screw with a screwdriver when the GAMMA
MANUAL/PRESET switch [I4]is set to MANUAL.
To adjust this screw, use a waveform monitor and a
vectorscope.
The adjustment range: 0.4 to 0.5
GAMMA PRESET/MANUAL switch
Normally set to PRESET.
You can adjust the gamma with the MASTER GAMMA
adjusting screw when this selector is set to MANUAL.
[15] IRIS AUTO/MANUAL switch
Determines how the iris is adjusted:
AUTO: The iris is automatically adjusted to the optimum
value only if you set the IRIS switch of the camera lens
to A (auto).
DETAIL adjusting screw
This screw compensates the contours of subjects.
Normally set this screw at the center position. Turn this
screw to obtain the desired contours with a screwdriver.
The adjustment range: approx. + 4 dB referred to the
preset value.
IRIS control
This control adjusts the lens iris continuously from
"open" to "close" when the IRIS AUTO/MANUAL switch
[I5]is set to MANUAL.
This control is for a fine adjustment (approx. —1.5 and
+ 1.5) of the automatically adjusted iris when the IRIS
AUTO/MANUAL switch [i5]is set to AUTO.
MASTER PEDESTAL control
Adjusts the pedestal level (black fevel) of the video signal:
between —30% and + 30% referred to the reference video
signal (100%, 0.7V).
The adjustment range: approx. —30 IRE to + 30 IRE
RM-M7G (UC)