JVS AV-32D203, Руководство по обслуживанию, Страница: 27 / 89

No. 51947
AV-32D503
AV-32D303
AV-32D203
27
VIDEO / CHROMA CIRCUIT ADJUSTMENT
The adjustment using the remote control unit is made on the basis of the initial setting values.
The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
Do no t change the initial setting values not listed in “ADJUSTMENT”.
Item
Measuring
instrument
Test point Ad justment item Description
WHITE
BALANCE
(Low Light)
adjustment Signal
generator
Remote
control unit
LOW LIGHT
BRIGHT (S01)
[SERVICE MENU]
R CUTOFF(S11)
G CUTOFF(S12)
B CUTOFF(S13)
SCREEN VR
[In HVT]
1. Receive a black and white signal (color off).
2. Select the LOW LIGHT MODE from the SERVICE MENU.
3. Confirm the initial setting value of BRIGHT.
4. Confirm the initial setting value of R CUTOFF, G CUTOFF
and B CUTOFF.
5. If they are differ, s et the S01, S11, S12 and S13 to the correct
initial setting value in the 1 V/C(S) mode.
6. Display a single horizontal line by pressing the
① ① ① ①
key of the
remote control unit.
7. Turn the screen VR all the way to the left.
8. Turn the screen VR gradually to the right from the left until
either one of the red, blue or green colors appears faintly.
9. Use keys ④～⑨ of the remote control unit and adjust the
other 2 colors which except the appeared color to where the
single horiz ontal line appears white.
10. Turn the screen VR to where the single horizontal line glows
faintly.
11. Press the
② ② ② ②
key to releas e the single horizontal line.
12. Adjust the BRIGHT level to become the black c omponent
shines white slightly.
13. Confirm that whether the color ingredient of R, G or B is
vis ible to the black component, which shines white slightly.
14. When the color ingredient can be seen, two colors other than
a visible color are adjusted, and it is made to look white.
15. Return the value of BRIGHT to initial s etting value.
16. Press the
③
key to exit the W HITE BALANCE MODE.
CUTOFF ADJUSTMENT
Variable
range
Initial setting
value
R CUT OFF (S11)
0
～
255
30
G CUT OFF (S12)
0 ～ 255
30
B CUTOFF (S13)
0
～
255
30
BRIGHT
***
***
*** ***
LOW LIGHT adjustment mode
Remote Control Unit
H.LI NE ON
1 2 3
4 5
6
7 8
9
R C UTOFF
R C UTOFF
H.LI NE OFF
G CUTOFF
G CUTOFF
EXIT
B CU TOFF
B CU TOFF
Ad justment item
Variable
range
Initial setting
value
BRIGHT
0
～
127
64