Sony BVP-9500WS, Maintenance Manual

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3-7 (E)
BVP-9500WS/9500WSP MM
3-2. Video Adjustment
3-2. Video Adjustment
3-2-1. V Substrate Adjustment
Equipment: Oscilloscope
Object: Pattern box
Notes
. This adjustment is required when replacing the TG-194 board.
.
Perform this adjustment by opening the OHB Trimming page from Maintenance Menu. For details on
Maintenance Menu, refer to Section 2.
Preparations
. Extend the CCD unit from the camera by using the OHB extension harness.
(Refer to Section 1-9-3.)
. Setting for MSU-700A MASTER GAIN control block
Master gain
→
0 (dB)
. Settings for MSU-700A ECS/SHUTTER control block
ECS button, ON button
→
OFF (unlit)
. Turn on the S3-4/AT-128 to display Maintenance Menu.
Adjustment procedures
1. Set the OHB Trimming page from Maintenance Menu as follows:
[OHB|Trimming]
→
[SPM]
→
[OFF|60]
(for BVP-9500WS)
→
[OFF|50]
(for BVP-9500WSP)
2. Open the lens iris. Adjust the zoom control so that the pattern box is shot in the following condition.
3. Check that the video level at the following point on the VA-189 board is 3.0 V p-p.
Test Point/VA-189 board TRIG/TG-203 board
G-ch TP5 (GND:E1) TP8
R-ch TP4 (GND:E1) TP8
B-ch TP6 (GND:E1) TP8
VA-189 BOARD (B SIDE)
TP2 TP1
RV6
RV5
RV4
TP3
TP6
TP5
TP4
E1
D C B A
1
2
3
4
6
5
(VF screen)
Pattern box
3.0 V p-p
V rate
Sync (G-ch only)
(Oscilloscope)