2-1. BVP-570 and Upgraded BVP-550/550P with BKP-5090
2-1-2. V Substrate Voltage/V Reset Gate Adjustment
2-1-2. V Substrate Voltage/V Reset GateAdjustment Procedures:
Adjustment1. Open the lens iris. Shoot the pattern box. Adjust the
size of pattern box on the viewfinder screen with zoom
Notes:control of the lens.
This adjustment can be performed using the Factory menu.
Pay attention when the Factory menu will be changed.
Pattern boxBe sure not to set the needless menu item.
Equipment : Oscilloscope, Color monitor
Object: Pattern box
Preparations:(VF screen)
. Set S1-1 to S1-4 on the AT-126 board to ON. The
Factory menu can be seen on the viewfinder screen.2. Open the Factory menu.
Adjustment Point:
. Set the menu follows.MENU: Factory
MENU : MaintenancePAGE: Board Config (F4)
PAGE: Black Shading (M3)3. Connect an oscilloscope to each test point (TP) on the
ITEM: Master Gain ? 0VA-163 extension board. Make sure that the video
level of each channel is within the specification 1. If
MENU : Paintnot, perform adjustment of error channel as follows:
PAGE: Detail 1 (P2)(1) Decrease the value of OV reg� on page OBoard
ITEM: Detail ? OffConfig� in the direction of minus within the limit
of _30 hex.
MENU : Paint(2) Increase the value of OV sub� until the video level
PAGE: Gamma (P5)meets the specification 1.
ITEM: Gamma ? Offn
If it is impossible to meet the specification 1, make
MENU : Paintsure that the specification 2 is met. If not, perform
PAGE: Gamma (P9)adjustment in accordance with the above procedures.
ITEM: Shutter ? Off
Chan-Test Point/AdjustmentSpecifications
nelGNDPoint
MENU : Paint(Extension(Menu)
PAGE: Gamma (P9)Board)
ITEM: ESC ? OffG-chPins 74/73V reg [G]Specification 1:
V sub [G]A = 750 mVp-p or more
. Extend the VA-163 board with the EX-464 board.R-chPins 72/71V reg [R]Specification 2:
V sub [R]A = 580 mVp-p or more
R-chPins 72/71V reg [B]
V sub [B]
A
V rate
(Oscilloscope)
4. Connect the color monitor to TEST OUT terminal.
5. ENC/RGB switch (on the side panel) ? RGB
R/G/B switch (on the side panel) ? G
BVP-570/550/5002-3 (E) |