AV-27D104 AV-27D304
AV-27430 AV-27432
1-20 (No.52102)
3.6.6
VIDEO CIRCUIT
Item
Measuring
instrument
Test point
Adjustment part
Description
WHITE
BALANCE
(LOW LIGHT)
Signal
generator
Remote
control unit
[7.LOW LIGHT]
[1.V/C(S)]
S11 : R CUTOFF
S12 : G CUTOFF
S13 : B CUTOFF
S01 : BRIGHT
SCREEN VR
[in HVT]
(1) Receive the black-and-white signal (color off).
(2) Select the 7.LOW LIGHT in the SERVICE MENU.
(3) Set the initial setting value of <S11>(R CUTOFF),
<S12>(G CUTOFF), <S13>(B CUTOFF) and
<S01>(BRIGHT).
(4) Display a single horizontal line by pressing the [1]
key.
(5) Turn the SCREEN VR all the way to the left.
(6) Turn the SCREEN VR gradually to the right from the
left until either one of the red, blue or green color
appears faintly.
(7) Adjust the two colors which did not appear until the
single horizontal line that is displayed becomes
white using the [4] to [9] keys.
(8) Turn the SCREEN VR until the single horizontal line
is displayed faintly.
(9) Press the [2] key to cancel the single horizontal line
mode.
(10) Adjust the <S01> level to become the black
component shines white slightly by [VOLUME] key.
(11) Confirm that whether the color ingredient of R,G,or B
is visible to the black component, which shines white
slightly.
(12) When the color ingredient can be seen, two colors
other than a visible color is adjusted, and it is made
to look white.
(13) Return the value of <S01> to initial setting value.
If the [3] key is pressed, it can escape from WHITE
BALANCE adjustment mode.
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
R CUTOFF
R CUTOFF
H LINE OFF
H LINE ON
EXIT
G CUTOFF
G CUTOFF
B CUTOFF
B CUTOFF
No.
S11
Setting item
R CUT OFF
0
㨪
255
Variable
range
Initial setting
value
30
S12
G CUT OFF
0
㨪
255
30
S13
B CUT OFF
0
㨪
255
30
S01
BRIGHT
0
㨪
127
64
