Adjustment After Replacement Of Nd Filter - Sony HDC-900 Maintenance Manual

6-7. Adjustment After Replacement of
ND Filter
When the filter disk unit or the ND filter alone in the filter
disk unit is replaced, the correction of white balance is
required. Proceed as follows.
Equipment: Waveform monitor (R, G, B)
Test point: MONITOR OUT connector
Object: Grayscale chart
Preparations
. Shoot the grayscale chart so that the chart frame is
aligned with the underscanned monitor frame.
. Setting for MSU-700A
AUTO button (Iris control block) → ON (lit)
. Iris of the lens: A = 600 ± 20 mV
Adjustment Procedures
1. FILTER CTRL button/MSU-700A → ON (lit)
2. Select the ND 1 filter.
ND 1 button/MSU-700A → ON (lit)
3. Adjust the white balance.
WHITE button/MSU-700A → ON (lit)
4. After the white balance adjustment is complete, switch
the filter from ND 1 to ND 2 and adjust the white
balance for the ND 2 filter.
5. Switch the filter from ND2 to ND3 to ND4, and adjust
the white balance for each.
Set the GAIN for each ND filter as follows.
MASTER GAIN/MSU-700A
. ND filter 2: 6 dB
. ND filter 3: 12 dB
. ND filter 4: 18 dB
HDC-900/950 MM
OHB File Store
1. MSU menu operation:
. FILE button → ON (lit)
. Touch panel operation
2. When the store operation is complete, the message
"OHB File Stored" is displayed.
Resetting after Adjustment
. MASTER GAIN/MSU-700A → 0 dB
A

6-7. Adjustment After Replacement of ND Filter

[OHB|File] → [OHB|Store] → [Store]
6-29 (E)