4.8.5 VIDEO CIRCUIT
Measuring
ItemTest pointAdjustment partDescription
instrument
WHITESignal[1.PICTURE/SOUND](1) Input the black and white signal ( color off ).
BALANCEgeneratorS14: CUTOFR(2) Set the VIDEO STATUS to STANDARD.
(LOW LIGHT)S16: CUTOFG(3) Set the COLOR TEMPERATURE to LOW.
RemoteS18: CUTOFB(4) Select 1.PICTURE/SOUND from the SERVICE
control unitMODE.
[3.WHITE BALANCE](5) Set the initial setting values of the < S14 > (CUTOFF
R), < S16 > (CUTOFF G), < S18 > (CUTOFF B).
SCREEN VR(6) Return to the main menu in SERVICE MODE.
[FBT](7) Select the 3.WHITE BALANCE from SERVICE
MODE.
REMOTE CONTROL UNIT(8) Display the horizontal line by pressing the [1] key.
(9) Turn the SCREEN VR all the way to the left, then
turn it gradually clockwise until either one of the red,
H.LINE ON
blue or green color is faintly visible.
(10) Adjust the two colors which did not appear until the
single horizontal line that is displayed becomes
H.LINE OFFwhite using the [7], [8], [9], [TUNE] and [RETURAN+]
keys.
(11) Press the [MUTING] key to memorize the set value.
G CUTOFFR CUTOFFB CUTOFF
(12) Press the [4] key to release the horizontal line mode.
(13) If there is a gap with the setting values, repeat the
steps 7. to 12. for readjustment.
G CUTOFFR CUTOFFB CUTOFF
(14) Input the 480i component video signal.
(15) Repeat the steps 7. to 13. as above.
(16) Input the 1080i component video signal.
(17) Repeat the steps 7. to 13. as above.
WHITESignal[1.PICTURE/SOUND](1) Input the black and white signal (color off).
BALANCEgeneratorS10: DRIVE R(2) Set the VIDEO STATUS to STANDARD.
(HIGH LIGHT)S12: DRIVE B(3) Set the COLOR TEMPERATURE to LOW.
Remote(4) Select 1.PICTURE/SOUND from the SERVICE
control unit[3.WHITE BALANCE]MODE.
(5) Set the initial setting values of the < S10 > (DRIVE R)
REMOTE CONTROL UNITand < S12 > (DRIVE B).
(6) Return to the main menu in SERVICE MODE.
(7) Select the 3.WHITE BALANCE from SERVICE
R DRIVEB DRIVE
MODE.
(8) Adjust the screen until it becomes white using the
[2] ,[3], [5] and [6] keys.
R DRIVEB DRIVE(9) Press the [MUTING] key to memorize the set value.
(10) Make sure that the WHITE BALANCE tracking from
the LOW-LIGHT through the HIGH-LIGHT has been
properly done. [When the black and white signal
(color off) is received, the natural white should be
visible.]
(11) Input the 480i component video signal to
COMPONENT VIDEO terminal.
(12) Repeat the steps 7. to 9. as above.
(13) Input the 1080i component video signal to
COMPONENT VIDEO terminal.
(14) Repeat the steps 7. to 9. as above.
(15) If there is a gap with the initial setting values, repeat
the steps 7. to 9. for readjustment.
1-36 (No.YA093) |
ACEC
