Black Shading Adjustment - Sony CBK-HD01 Maintenance Manual

9-2-4. Black Shading Adjustment

Fixtures and Equipment:
HD waveform monitor
Preparation:
. Connect an HD waveform monitor to the TEST OUT
connector.
. Lens IRIS → CLOSE
. Waveform monitor setting
LUM mode
VOLT FULL SCALE range → 0.5
Adjustment Procedure:
Perform either step 1 or step 2 for the black shading
adjustment.
1. Auto black shading adjustment
(1) On the menu, set as follows.
MENU: SERVICE
PAGE: SHADING
ITEM: AUTO BLK SHADING → EXEC
(2) Push the MENU knob.
(3) When adjustment ends successfully, the message
"COMPLETE" appears.
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The auto adjustment takes about 30 seconds.
2. Manual black shading adjustment
When performing fine adjustment after executing the
black shading auto adjustment, or when performing
manual adjustment without executing the auto adjust-
ment, proceed as follows.
(1) On the menu, set as follows.
MENU: SERVICE
PAGE: BLACK SHADING
ITEM: SHADING CH SEL → G
ITEM: TEST OUT SELECT → G
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The HD signal is output when TEST OUT
SELECT is set to a signal other than VBS.
9-6
(2) On the menu, perform the G-channel adjustment
as follows.
MENU: SERVICE
PAGE: BLACK SHADING
ITEM: G BLK H SAW
ITEM: G BLK V SAW
ITEM: G BLK H PARA
ITEM: G BLK V PARA
Spec.: Make the waveform of the G-channel
flat.
(H SAW)
(V SAW)
(3) On the menu, set as follows.
MENU: SERVICE
PAGE: BLACK SHADING
ITEM: SHADING CH SEL → R
ITEM: TEST OUT SELECT → R
(4) Adjust the shading for the R-channel in the same
procedure as the G-channel adjustment.
(5) On the menu, set as follows.
MENU: SERVICE
PAGE: BLACK SHADING
ITEM: SHADING CH SEL → B
ITEM: TEST OUT SELECT → B
(6) Adjust the shading for the B-channel in the same
procedure as the G-channel adjustment.
Setting after Adjustment:
. On the menu, set as follows.
MENU: SERVICE
PAGE: BLACK SHADING
ITEM: TEST OUT SELECT → VBS
(H PARA)
(V PARA)
PDW-700/V1 (E)