Sony BVP-570, Maintenance Manual

Page: 635 / 806

5-21 (E)
BVP-570
A
5-14. White Shading Adjustment
Note:
. This adjustment could not be correctly performed if the
uneven white patten is used, luminance is not correct, or
lens iris and lens zoom are not in good conditions.
Equipment : Waveform monitor
Test Point : TEST OUT connector
Object
: Full white pattern
Preparations:
. Connect the waveform monitor to the TEST OUT
connector.
.
ENC/RGB switch (on the side panel)
→
ENC
.
Set the DISP switch (on the side panel) from OFF to
MENU while holding down the MENU SEL switch (on
the front panel). Set the menu as follows.
MENU : Paint
PAGE : W.Clip/Knee (P6)
ITEM : Knee
→
Off
. Shoot the fully occupied white area of the pattern box in
the full underscanned monitor frame adjusting the zoom
control.
Iris of the lens
: A = 80
±
5 IRE (for NTSC)
A = 560
±
35 mV (for PAL)
Adjustment Procedures:
1. Set the WHITE BAL switch (on the side panel) to
PRST.
2. Set the waveform monitor as follows.
.
LUM mode
.
VOLTFULL SCAN range
→
0.5
3. Set the ENC/RGB switch (on the side panel) to RGB.
Set the R/G/B switch (on the side panel) to G.
4. If the white shading is monitored, make the waveform
flat referring to the following tables.
5. Perform the adjustments for R-ch and B-ch with the
same procedures as for G-ch.
Switch H SAW H PARA
PAGE: PAGE:
White Shading (M2) White Shading (M2)
R ENC/RGB
→
RGB ITEM: H Saw (R) ITEM: H Para (R)
R/G/B
→
R
G ENC/RGB
→
RGB ITEM: H Saw (G) ITEM: H Para (G)
R/G/B
→
G
B ENC/RGB
→
RGB ITEM: H Saw (B) ITEM: H Para (B)
R/G/B
→
B
TEST OUT connector
Switch V SAW V PARA
PAGE: PAGE:
White Shading (M2) White Shading (M2)
R ENC/RGB
→
RGB ITEM: V Saw (R) ITEM: V Para (R)
R/G/B
→
R
G ENC/RGB
→
RGB ITEM: V Saw (G) ITEM: V Para (G)
R/G/B
→
G
B ENC/RGB
→
RGB ITEM: V Saw (B) ITEM: V Para (B)
R/G/B
→
B
TEST OUT connector
File Store:
Execute the file store. Press the MENU SEL switch twice
to execute.
MENU : Reference File
PAGE : Reference File (R1)
ITEM : File Store
Resetting after Adjustment:
. ENC/RGB switch (on the side panel)
→
ENC
5-14. White Shading Adjustment