Auto Iris Adjustment - Sony HDCAM HDW-F900R Maintenance Manual

9-27. Auto Iris Adjustment

Preparation
. OUTPUT/DCC switch (inside panel) → CAM/ON
. Shoot the gray scale chart to fill the entire screen of the
under-scanned picture frame.
. Lens iris : AUTO
Adjustment Procedure
Equipment : HD digital waveform monitor
Measurement point : HD SDI connector (rear panel)
1. Complete the adjustment as shown below by using the
setup menu.
MENU : MAINTENANCE
PAGE : 13*AUTO IRIS 2
ITEM : IRIS APL RATIO
Specifications : Adjust the auto iris in accordance with
the application of customer.
(It determines at which signal level the auto iris
control starts operating.)
IRIS APL RATIO = _99 (peak value operation)
IRIS APL RATIO = 99 (average value operation)
2. Complete the adjustment as shown below by using the
setup menu.
MENU : MAINTENANCE
PAGE : 13*AUTO IRIS 2
ITEM : IRIS LEVEL
Specifications : A = 700 ± 14 mV.
3. Complete the adjustment as shown below by using the
setup menu.
MENU : MAINTENANCE
PAGE : 13*AUTO IRIS 2
ITEM : IRIS SPEED (Default value when
shipped from the factory : 2)
Specifications : Adjust the operating speed of auto iris
control of the lens as desired.
4. Complete the setting as shown below by using the
setup menu.
MENU : MAINTENANCE
PAGE : 13*AUTO IRIS 2
CLIP HIGH LIGHT → ON or OFF
ITEM :
Specifications : Adjust the operating speed of auto iris
control of the lens for the customer's
preference.
HDW-F900R/V1 (E)
9-28. Adjustment upon Replacement of
Whenever a filter disc unit is replaced, the white balance
correction is required. Perform the white balance correc-
tion as follows.
Preparation
. WHITE BAL switch (inside panel) → A or B
. Shoot a all white chart to fill the entire screen of the
under-scanned picture frame.
. Lens iris → AUTO
. Connect a B/W monitor to the TEST OUT connector of
this unit.
Adjustment Procedure
Equipment : B/W monitor
1. Complete the setting as shown below by using the
setup menu.
MENU : MAINTENANCE
PAGE : 16*ND COMP
ITEM : ND OFFSET ADJUST → ON
ITEM : CLEAR ND OFFSET → EXEC
2. Set the filter knob to 1B.
3. Set the WHITE BAL switch (inside panel) → WHT
(Execute auto white balance adjustment.)
A
n
Confirm that a message "ND1 DET = OK!" appears
on monitor.
4. Select the filter knob to 2B then 3B then 4B and
execute step 3 at every filter position.
n
Confirm that a message "COMPLETE!" appears on
monitor when all the adjustments of 1B to 4B are
completed normally. The ND OFFSET ADJUST
setting returns to the OFF position.
Filter Disc Unit
9-27