SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT (1)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
1
SCREEN
(1) In window pattern signal condition
ADJUSTMENT Note 1:
(I2C BUS CONTROL) (2) Go to service mode, then select V00. R-CUTOFF (R-C) UP
RC key "1" (HEX 80)
R-CUTOFF (R-C) DOWN
RC key "4" (HEX 20)
(3) By pressing R/C key
S-Mute (Hex E8)
,
R-D
auto switch to
63
,
B-D
auto switch to
63
,
G-CUTOFF (G-C) UP
RC key "2" (HEX 40)
R-C
auto switch to
127
,
G-C
auto switch to
127
,
B-C
auto switch to
127
,
G-CUTOFF (G-C) DOWN
RC key "5" (HEX A0)
Sub-brightness V06
auto switch to
127.
B-CUTOFF (B-C) UP
RC key "3" (HEX C0)
Y-mute & Vertical off, screen will be in
vertical cut-off
condition
B-CUTOFF (B-C) DOWN
RC key "6" (HEX 60)
R-DRIVE (R-D) UP
RC key "7" (HEX E0)
(4) Adjust the Screen so that cut-off line appear in low bright, then judge that whether
R-DRIVE (R-D) DOWN
RC key "Flashback" (HEX E4)
the cut-off line appear in Red or Green or Blue color, in this condition between R-C &
B-DRIVE (B-D) UP
RC key "8" (HEX 10)
G-C & B-C, fix the data of the color appear in cut-off line and adj the other two cut-off
B-DRIVE (B-D) DOWN
RC key "0" (HEX 50)
data (Note 1) so that cut-off line color become white.
(5)Turn the screen VR of FBT so that cut-off line just
disappea
r and use R/C
by pressing key
S-Mute (Hex E8)
to
disable
the Y-mute & V-cut so that picture
appear in normal mode.
2 WHITE BALANCE ADJ
(1)WHITE (HIGH BEAM)
( In Window Pattern Signal)
(to be done after screen
First use Minolta Color Analyzer CA100, let the gun point at
Dark White
position
(as drawing attach), Adj
V06
until
LUMINANCE Y
become
4 cd/m2
, then let the gun
point at
White
position ( as drawing attach), Adj
V04
until
LUMINANCE Y
become:
150 cd/m2.
White Dark
In service mode V00, adj the
R-D
&
B-D
until the axis of color temperature become White
12300°K X : 0.272 , Y : 0.275
5.5% IRE 9.5% IRE
(2) DARK WHITE (LOW BEAM)
(In Window Pattern Signal)
Let the gun point at
Dark White
position, if the color temperature data shift away from
*Note :
Signal using W/B Pattern Generator
the data adjusted in
step 1
, adjust
R-C, G-C & B-C but between them, first color
SX-1006 (IWATSU) or equivalent.
appears
in
Screen adj item (4) is fixed
, adj the other two so that to obtain the similar Window Pattern Signal output level
axis as above. are as above:
** Repeat step 1 & 2 to get a regulated position
SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT (2)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS
3 SUB-BRIGHTNESS (1) In Window Pattern Signal condition.
(to be done after screen,
(2) Using Minolta Color Analyzer CA-100, let the gun point at
Dark White
position
(as attach drawing), adjust
V06
Bus data until
LUMINANCE Y = 4 cd/m2
(I2C BUS CONTROL)
Service
Luminance
Mode (cd/m2)
Upper Limit Lower Limit
Enable 4.0 +0.5 -0.5
Disable 4.0 +1.5 -0.5
4 SUB-CONTRAST (1) In Window Pattern Signal condition.
(to be done after screen,
(2) Using Minolta Color Analyzer CA-100, let the gun point at
White
position (as
attach drawing), adjust
V04
Bus data until
LUMINANCE Y
= 150cd/m2
sub-brightness adj)
(I2C BUS CONTROL)
Service
Luminance
Mode (cd/m2)
Upper Limit Lower Limit
Enable 150.0 +10 -10
Disable 150.0 +10 -10
White
5 BEAM CURRENT (1) Receive the "Monoscope Pattern" signal.
CHECK
(2) Press R/C to set Picture NORMAL condition.
(3) Connect the DC miliammeter between TP 603 ( + ) & TP 602 ( - )
(Full Scale: 3mA Range).
(4) Beam current must be within :
1000 ± 100µA
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