Sony BVP-550 Maintenance Manual page 523

6. Test Point
: TP72 (GND:TP71)/extension board
(extending VA-163)
Iris of the lens: A = 125 mV (at F7.0 or more)
(Oscilloscope)
7. Set the RGB/ENC switch (on the side panel) to RGB.
Set the R/G/B switch (on the side panel) to G.
8. Adjust the VA gain for G.
Test Point : TEST OUT connector
Adjustment Point : 1RV300 (G GAIN)/VA-163
Specifications
: The levels A and B are shall be
Menu Setting:
MENU : Paint
PAGE : Knee/W.Clip (P6)
ITEM : Test
(Waveform Monitor)
9. Set the menu as follows.
MENU : Paint
PAGE : Knee/W.Clip (P6)
: Test → Off
ITEM
10. Select the 15 lines in the center of monitor screen C by
using the 15 LINE SELECT on the waveform monitor.
11. Put the waveform monitor into the CHROMA mode.
BVP-550
panel
equal when the test waveform is
switched between 2 and off.
12. Set the RGB/ENC switch (on the side panel) to ENC.
13. Test Point
: TEST OUT connector
Adjustment Point : 1RV200 (R GAIN)/VA-163
Specifications
: Carrier leakage D = Minimum
(Waveform Monitor)
4
VA
TEST
CT200
R GAIN
RV200
R
CT300
G GAIN
RV300
R
CT400
B GAIN
RV400
B
VA-163 BOARD (A SIDE)
4-3. Overall Electrical Alignment
4-3-10. VA Gain Adjustment
panel
1RV400 (B GAIN)/VA-163
panel
C
3 2 1
A
B
C
D
E
F
G
4-33 (E)