Sony BVP-550, Руководство по обслуживанию

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4-7 (E)
BVP-550
BVP-550P
4-2. Adjustment for Installation of OHB
Switch H SAW V SAW
PAGE: PAGE:
Black Shading (M3) Black Shading (M3)
R ENC/RGB
→
RGB ITEM: H Saw (R) ITEM: V Saw (R)
R/G/B
→
R
G ENC/RGB
→
RGB ITEM: H Saw (G) ITEM: V Saw (G)
R/G/B
→
G
B ENC/RGB
→
RGB ITEM: H Saw (B) ITEM: V Saw (B)
R/G/B
→
B
TEST OUT connector
6. After adjustments are completed, set the switches as
follows.
ENC/RGB switch (on the side panel)
→
ENC
GAIN switch (on the side panel)
→
L (0 dB)
4. Confirm the carrier level satisfies the specification on
the waveform monitor.
Specifications : Less than 2 IRE (for NTSC)
Less than 14 mV (for PAL)
• Manual Black Shading Adjustment (For reference)
Note:
• Perform this adjustment only when “4-2-3. Black
Shading Adjustment” is not completed.
Equipment : Waveform monitor
Preparations:
Connect the waveform monitor to the TEST OUT connec-
tor.
GAIN switch (on the side panel)
→
H (18 dB)
Test Point
: TEST OUT connector
Iris of the lens
: CLOSE
Adjustment procedures:
1. Set the waveform monitor as follows.
• LUM mode
• VOLTFULL SCALE range
→
0.5
2. Set the ENC/RGB switch (on the side panel) to RGB.
Set the R/G/B switch (on the side panel) to G.
3. Set the menu as follows, and adjust the master black
level to 3 IRE for NTSC and 35 mV for PAL by
turning the MENU SEL switch.
MENU : Maintenance
PAGE : Black Shading (M3)
ITEM : Black M
4. If the shading is monitored, makes the waveform flat
referring to the following table.
5. Perform the adjustments for R-ch and B-ch following
the same procedures as for G-ch.