JVC AV-36D203/M, Руководство по обслуживанию

Страница: 27 / 92

No. 51948
AV-36D503
AV-36D303
AV-36D203
27
VIDEO / CHROMA CIRCUIT ADJUS TMENT
The adjustment using the remote control unit is made on the b asis of the initial setting values.
The setting values which adjust the screen to the optimum condition can b e different from the in itial setting values.
Do not change the initial setting values not listed in “ ADJUSTMENT”.
Item
Measuring
instrument
Test point Adjustment 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 blac k and white signal (col or off).
2. Select the LOW LIGHT MODE fr om the SER VICE MENU.
3. Confirm the initial setting value of BRIGHT.
4. Confirm the initial setting value of R CUTOFF, G CUTOFF
and B CUTOFF.
5. Display a single horizontal line by pressing the ①
① ①
① key of the
remote c ontrol unit.
6. Turn the screen VR all the way to the left.
7. Turn the screen VR graduall y to the right from the left until
either one of the red, bl ue or green c olors appears faintl y.
8. Use keys
④ ④ ④ ④ ～⑨ ⑨ ⑨ ⑨
of the remote c ontr ol unit and adjus t the
other 2 c olors which except the appeared color to where the
single horizontal line appears white.
9. Turn the screen VR to where the single horizontal line glows
faintl y.
10. Press the ②
② ②
② key to rel eas e the single horizontal line.
11. Adjust the BRIGHT level to become the bl ac k component
shines white slightl y.
12. Confirm that whether the color i ngredient of R, G or B is
visible to the blac k component, which s hines white slightly.
13. When the c olor ingredient c an be seen, two c olors other than
a visible c olor are adj usted, and it is made to look white.
14. Return the value of BRIGHT to initi al setting value.
15. Press the ③
③ ③
③ key to exit the WHITE BALANCE MODE.
CUTOFF ADJUSTMENT
Variable
range
Initial setting
value
R CUTOFF(S11) 0
～
255 30
G CUTOFF(S12) 0 ～ 255 30
B CUTOFF(S13) 0 ～ 255 30
Adjustment item
Variable
range
Initial setting
value
BRIGHT(S01) 0
～
127 64
BRIGHT
***
***
***
LOW LIGHT adjustment mode
R e m o t e C o n t r o l U n i t
H.LINE ON
1 2 3
4 5
6
7 8
9
R CUTOFF
R CUTOFF
H.LINE OFF
G CUTOFF
G CUTOFF
EXIT
B CUTOFF
B CUTOFF