– 7 –
4. Contrast Adjustment
Set the VIDEO signal level that drives the LCD to proper value.
If deviated, the EVF screen will be unclear, black blurring, or white
blurring.
Item number
2-01-03
Screen display
10-step gradation pattern (white/black)
Measurement point
Adjusting monitor jig
B
pin (G)
Measuring instrument
Oscilloscope
Adjustment data
B5
initial value
Adjustment value
A = 2.1
±
0.1 Vp-p
Adjusting method
1) Set the 10-step gradation pattern (white/black).
2) Select the item number “2-01-03”.
3) Press the DSPL key to display the 10-step gradation pattern
(white/black) on the EVF screen.
4) Using
e
and
E
keys, change the adjustment data so that the
voltage (A) between pedestal (0 IRE) and 100 IRE satisfies
the adjustment value.
5) Press
y
key to write the adjustment data.
6) Press the DSPL key to return the EVF screen to the test mode
screen.
Fig.7-1-9
5. Backlight Consumed Current Adjustment
Set the brightness of backlight.
If deviated, the picture will be too dark or too bright.
Item number
2-01-04
Screen display
10-step gradation pattern (white/black)
Measurement point
+ probe: Adjusting monitor jig
D
pin
(BL+)
– probe: Adjusting monitor jig
C
pin
(BL–)
Measuring instrument
Digital voltmeter
Adjustment data
B8
initial value
Adjustment value
A = 21.0
±
1.0 mV
Note:
After turning on the power, wait for more than 30 seconds,
and then start the adjustment.
Adjusting method
1) Set the 10-step gradation pattern (white/black).
2) Select the item number “2-01-04”.
3) Press the DSPL key to display the 10-step gradation pattern
(white/black) on the EVF screen.
4) Using
e
and
E
keys, change the adjustment data so that po-
tential difference (A) between adjusting monitor jig
D
pin
(BL+) and
C
pin (BL–) satisfies the adjustment value.
5) Press
y
key to write the adjustment data.
6) Press the DSPL key to return the EVF screen to the test mode
screen.
A
100 IRE
Pedestal(0 IRE)
2H
6. White Balance Adjustment
Adjust the white balance properly.
If deviated, the color reproducibility of EVF screen will be poor.
Item number
2-01-05
Screen display
10-step gradation pattern (white/black)
Measurement point
Check on the EVF screen
Measuring instrument
Adjustment data
R data: 97
initial value
B data: 57
Adjustment value
EVF screen must not be colored
Note:
To switch between R data and B data, press
u
key.
After the adjustment finished, move to other item with R
data kept displayed.
Adjusting method
1) Set the 10-step gradation pattern (white/black).
2) Select the item number “2-01-05”.
3) Set the adjustment data to initial value (R data:97, B data:57).
Note:
Each time the data is set, press
y
key to write data to
nonvolatile memory.
4) Press the DSPL key to display the 10-step gradation pattern
(white/black) on the EVF screen.
5) Check that the EVF screen is not colored.
If colored, change the adjustment data by using
e
and
E
keys
so that the EVF screen is not colored.
Note:
Each time the data is set, press
y
key to write data to
nonvolatile memory.
6) Press the DSPL key to return the EVF screen to the test mode
screen.
Summary of Contents for MDDISCAM DCM-M1
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Page 69: ...DCM M1 4 5 4 6 4 7 4 8 4 1 FRAME SCHEMATIC DIAGRAM FRAME ...
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