Nd Offset Adjustment - Sony HDC-P1 Maintenance Manual

3-5. ND Offset Adjustment

When the TG-265PT board is replaced, correct the white
balance using the following procedure.
Waveform monitor (R, G, B)
Equipment:
SDI 1 and SDI 2 connectors
Test Point:
Grayscale chart
Object:
Preparations
. Shoot the grayscale chart so that the chart frame is
aligned with the underscanned monitor frame.
. Setting for MSU-900
AUTO button (Iris control block) → ON (lit)
. Iris of the lens: A = 600 ?20 mV
Adjustment Procedure
1. FILTER CTRL button/MSU-900 → ON (lit)
2. Select ND fi lter 1.
ND1 button/MSU-900 → ON (lit)
3. Perform the automatic white balance adjustment.
WHITE button/MSU-900 → ON (lit)
4. After the white balance adjustment is completed,
switch the fi lter to ND fi lters 2 to 4, and adjust the
white balance for each. Set the GAIN for each ND
fi lter as follows so that the open end of the iris is not
used.
MASTER GAIN/MSU-900
. ND fi lter 2: 6 dB
. ND fi lter 3: 12 dB
. ND fi lter 4: 12 dB
OHB File Store
1. MSU menu operation:
. FILE button → ON (lit)
. Touch panel operation
[OHB|File] → [OHB|Store] → [Store]
2. When the store operation is completed, a message
"OHB File Stored" appears.
Setting after Adjustment
. MASTER GAIN/MSU-900 → 0 dB
HDC-P1
A
3-27 (E)