Sony BVP-550 Maintenance Manual page 284

4-2. Adjustment for Installation of OHB
4-2-6. Gamma Correction Adjustment
3. Set the menu as follows.
MENU : Paint
PAGE : Video Level (P1)
: Test → 1
ITEM
4. Set the RGB/ENC switch (on the side panel) to ENC.
5. Adjust the auto white balance.
WHITE BAL switch (on the side panel) → A
AUTO W/B BAL switch (on the front panel) → WHT
6. Set the menu as follows, and adjust the gamma
correction for (R) by using the MENU SEL switch.
MENU : Paint
PAGE : Video Level (P1)
ITEM : Gamma [R]
Specifications: Center the beam spot on the
vectorscope.
7. Set the menu as follows, and adjust the gamma
correction for (B) by using the MENU SEL switch.
MENU : Paint
PAGE : Video Level (P1)
ITEM : Gamma [B]
Specifications: Center the beam spot on the
vectorscope.
8. Repeat the steps 6 and 7 alternately, until the beam
spot is minimized on the vectorscope.
R
Y
L
G
(For NTSC)
R
Y
L
G
(For PAL)
(Vectorscope)
4-10 (E)
M
G
B
C
Y
M
G
B
C
Y
9. Confirm that the carrier leakage does not observed at
portion C on the waveform monitor.
Specifications: C = Minimum
(Waveform Monitor)
Resetting after Adjustment:
• Set the menu as follows.
MENU : Paint
PAGE : Video Level (P1)
: Test → Off
ITEM
• WHITE BAL switch (on the side panel) → PRST
BVP-550