Nr Gain Adjustment - Sony BVP-9500WS Maintenance Manual

Color video camera
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3-2. Video Adjustment

3-2-6. NR Gain Adjustment

Equipment:
Waveform monitor
Test Point:
TEST OUT connector/side panel
Object:
Grayscale chart
Notes
. For this adjustment, using an 89.9 % - reflective grayscale chart is preferable. (Refer to Section 3-1-5.)
. Perform this adjustment after completing "3-2-6. VA Gain Adjustment."
. Make sure that presetting all the compensation data is completed before beginning adjustment.
(Refer to Section 3-1-4.)
Preparations
. Remove the filter disk unit and attach the lens to the CCD unit.
. Connect the waveform monitor to the TEST OUT connector/side panel.
. Setting for MSU-700A MASTER GAIN control block
Master gain → 9 (dB)
. Setting for MSU-700A IRIS control block
Iris → F8.0
. Shoot the grayscale chart so that its frame is aligned with the underscanned monitor frame.
. S3-4/AT-128 board → ON
. Set the Maintenance Menu as follows: (Refer to Section 2.)
[Maintenance|Menu] → [System|Setup] → [Field|Rate] → [180] (for BVP-9500WS)
[Maintenance|Menu] → [Supermotion|Setup] → [DA|Sel] → [ON]
Adjustment procedures
1. G GAIN adjustment
Select G signal by pushing down the TEST OUT switch (side panel) from the RGB position towards
the SEL position. (You can check which signal is selected on the viewfinder screen.)
1RV2 (G3)/NR-65 board
Adj. point:
A= 100 ± 2 IRE [NTSC]
Specification:
A= 700 ± 14 mV [PAL]
A
(Waveform monitor)
3-16 (E)
→ [150] (for BVP-9500WSP)
→ [VBS|Sel] → [ON]
→ [Monitor|Sel] → [ON]
BVP-9500WS/9500WSP MM

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