Pre Knee Adjustment - Sony BVP-500 Maintenance Manual

5. MSU menu operation:
• PAINT button → ON (Lights)
• Touch panel operation
(Page 1/3) → Flare → Flare Off (Reversed)
Confirm that the level at portion B does not fluctuate
even if the flare is turned on/off.
6. If fluctuates, adjust the G flare as follows.
• Touch panel operation
Turn the flare on. ( Flare Off is not reversed.)
Adjustment Items : G
7. S650 (MONITOR SELECT)/IF-538 panel → VBS
8. Adjust the R flare.
Adjustment Item : R
Specifications : Minimize the carrier leakage.
9. Adjust the B flare.
Adjustment Item : B
Specifications
: Minimize the carrier leakage.
(Waveform Monitor)
10. Repeat the steps 8 and 9 alternately, until the carrier
leakage is minimized.
File Store:
1. Set the DISPLAY switch/rear panel to MENU while
pushing up the MENU SELECT switch to ENTER.
2. Execute the file store. Throw the MENU SELECT
switch to ENTER to execute.
MENU : Reference File
PAGE : Reference File (R1)
ITEM : File Store
Resetting after Adjustment:
• G button/rear panel → OFF
BVP-500
BVP-500P

5-18. Pre Knee Adjustment

Equipment
: Oscilloscope, Waveform monitor
Preparations:
• Extend the VA-163 board with the EX-464 extension
board.
• S650 (MONITOR SELECT)/IF-538 panel → VBS
• KNEE OFF button/MSU operation panel → ON (Goes out)
• MASTER GAIN button/MSU operation panel → 9 dB
• TEST 2 button/MSU operation panel → ON (Lights)
Iris of the lens : CLOSE
Adjustment Procedures:
1. Adjust the auto white balance.
WHITE button/MSU operation panel → ON (Lights)
2. Set the DISPLAY switch/rear panel to MENU while
pushing up the MENU SELECT switch to ENTER.
3. Adjust the Preknee1 for G. Proceed as follows.
Test Point
: TP52 (GND:GND(A))/extension
board (extending VA-163)
Adjustment Point:
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : PreKnee1[G]
Specifications : A = 1.68 ±0.02 V p-p
(Oscilloscope)
5-17. Flare Adjustment
5-18. Pre Knee Adjustment
5-23