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CUT OFF, BKGD, SUB-CONT ADJUSTMENT
No. Adjustment point
Adjustment Condition / Procedure
1
CRT CUTOFF
1. Receive the Monoscope pattern signal.
ADJUSTMENT
2. Select P-NORM with the remote controller.
(I
2
C BUS
3. Select the CUT OFF BKGD mode at the
CONTROL)
service mode.
4. Select the screen VR 0/10.
5. Press "-/--" key of the remote controller to select
the lateral in-line mode.
6. Turn the screen VR clockwise, and adjust the
first lighting lateral in-line raster to slightly light.
7. Adjust the CUT OFF data of two other colours,
and coarsely adjust the lateral in-line to
become white. (Note 1)
8. Turn the screen VR in the opposite direction
to the point where the lateral in-line raster goes
out.
Note 1: Apply the adjustment after aging with
the beam current 1,600 ± 50µA or
more for 30 min or more.
9. Press "-/--" key of the remote controller to select
the normal mode.
2
WHITE
1. Receive the Monoscope pattern signal.
BALANCE
2. Select P-NORM with the remote controller.
BACKGROUND
3. Connect the beam ammeter between TP1601
I
2
C BUS
and TP1602.
ADJUSTMENT
4. Coarsely adjust the beam current to approx.
(RF SIGNAL)
1.8mA with R1633 (Sub-Contrast VR)
5. Receive the window pattern signal with AV
input.
(PAL burst is generated with the signal
generator.)
6. With the data of G-drive and B-drive, adjust
the colour temperature 17,000°K or 18,000°K
of the white peak to white.
7. Adjust the right dark area of the window to
17,000°K or 18,000°K with R-cut off, G-cut off
and B-cut off.
8. Readjust the colour temperature at the white
peak.
9. Check 17,000°K or 18,000°K at the low white.
Note : Apply this adjustment after aging with the
beam current 1,600 ± 50µA or more for
30 min or more.
(On the white or green monocolour
screen.)
* The colour temperature is based on the
shipment initial setting table.
3
WHITE
1. Receive the window pattern with DVD signal
BALANCE
(component signal).
BACKGROUND
2. Apply the adjustment in the same manner as
(CUT OFF DVD
2 (5) and the subsequence above. (17,000°K
BKGD)
or 18,000°K) (G-DRIVE, B-DRIVE, R-CUT
2
I
C BUS
OFF, G-CUT OFF, B-CUT OFF)
ADJUSTMENT
Apply the adjustment after the end of 2.
(DVD SIGNAL)
Waveform or others
On the monocolour screen of white
or green.
Note1:
R CUT OFF UP
"1" KEY
DOWN
"4" KEY
G CUT OFF UP
"2" KEY
DOWN
"5" KEY
B CUT OFF UP
"3" KEY
DOWN
"6" KEY
Data up/down is possible with the
above comparison.
* 17,000°K X : 0.261
Y : 0.261
18,000°K X : 0.255
Y : 0.255
(With Monolta colour thermometer
CA-100)
Note2:
G-DRIVE UP
"7" KEY
DOWN
"
B-DRIVE UP
"8" KEY
DOWN
"0" KEY
Data up/down is possible with the
above comparison.
Note : Use the window pattern of
the signal generator for
adjustment.
(PAL, colour burst is generated with
signal generator)
12-1
CUT OFF, BKGD, SUB-CONT ADJUSTMENT
No. Adjustment point
Adjustment Condition / Procedure
4
MAX BEAM
1. Receive the Monoscope pattern signal with
R1759
standard mode.
2. Make the image normal with the remote
controller.
3. Connect the beam ammeter between TP1601
and TP1602.
Ammeter full scale-3mA range
Connect the - side of the ammeter to TP1602.
Connect the + side of the ammeter to TP1601.
4. Adjust the beam current to 1.8mA ± 20µA with
R1759 (sub-contrast VR).
Note: Apply the adjustment after aging with the
beam current 1,600 ± 50µA or more for 30
min or more.
(On the white or green monocolour screen.)
5
SUB-
1. Receive the window pattern signal with AV
CONTRAST
input.
(SUB-CONT)
2. Make the image normal with the remote
2
I
C BUS
controller.
ADJUSTMENT
3. Select the SUB-CONTRAST adjustment mode
(RF SIGNAL)
with the remote controller, and adjust 50%
white to 165 ± 10 cd.
6
SUB-
1. Select the DVD mode.
CONTRAST
2. Receive the signal of the DVD signal generator.
(SUB-CONT
(Component signal) (Window pattern)
DVD)
3. Make the picture normal with the remote
2
I
C bus
controller.
adjustment
4. Select the SUB-CONTRAST adjustment mode
(DVD Signal)
(DVD) with the remote controller, and adjust
50% white to 165 ± 10 cd.
" KEY
Waveform or others
Note:
Use "Y" of Minolta colour
analyzer CA-100 in adjustment.
Note:
Use the PAL window pattern of
t h e s i g n a l g e n e r a t o r f o r
adjustment.
(PAL and colour burst are
provided.)
Note:
Window pattern
50%white for SUB-CONT
Dark white for
SUB-BRIGHT
12-2
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