Service manual

21G-FX10L(A)
5 – 8
CLOSED CAPTION ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CO
N
DITION / PROCEDURE
WAVEFO
RM OR OTHE
RS
1
CLOSED CAPTI
ON
(1) Receive US4 CH LION HEA
D Signal (NTSC 60 Hz)
SETUP
(2)Gotoservice mode, choose service data
V22.
(3) A
d
just the V22 busdatatohaveabalance position to spec of A=B
(4) After the left and right symmetrical then V22 data reduce 5 step.
A
B
SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT (1)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITI ON / PROCEDURE WAVEFORM OR OTHERS
1
SCREEN
(1) Set the service data before adjust CRT cutoff as follows:
NOTE:
ADJUSTMENT
a) V01 : 127
Service data
R/C key (Hex)
(I2C BUS CONTROL)
b) V04 : 127
R-cutoff up A9
c) V15 : 127
R-cutoff down 69
d) V16 : 127
G-cutoff up E9
e) V17 : 127
G-cutoff down 19
f) V18 : 64
B-c utoff up 99
g) V19 : 64
B-c utoff down 59
(2) Receive the window pattern or US4 CH LION HEAD Signal (NTSC 60 Hz)
(3) Go to service mode, get in Y-mute by R/C and set
V23
to "1"
(4) Adjust the Screen so that cut-off line appear in low bright, then judge that whether
the cut-off data appear in Red or Green or Blue color, in this condition between
V15 = R-CU TOFF, V16=G-CUTOFF & V17= B-CUTOFF, fix the data of the color appear
in cut-off line and adj the other two cut-of f line so that cut-off line color become white.
(5) T urn the screen VR of FBT so that cut-off line just
disappea
r and use R/C to set
V23
to "0".
Next disable the Y-Mute so that the picture appear in normal mode
2 WHITE BALANCE ADJ
(1) W HITE (HIGH BEAM)
(to be done
First use Minolta Color Analyzer CA100, let the gun point at
Dark White
position
after screen adj)
(as drawing attach), Adj
V04
until
LUMINANCE Y
become
5cd/m
2
, then let the gun
(I2C BUS CONTROL)
point at
White
position ( as drawing attach), Adj
V01
until
LUMINANCE Y
White Dark
(CH 23 50IRE
become:
150 cd/m
2
.
White
WINDOW PATT ERN)
Adj the
V18(R DRIVE) , V19(B DRIVE)
until the axis of color temperature become
10700° X : 0.278 , Y : 0.280
(2) DARK WHITE (LOW BEAM)
Let the gun point at
Dark White
position, if the color temperature data shift away from
thedataadjustedin
Item 1 Screen adjustment
,adjust
V15,V16,V17
.
Please fix the
first colour appears in Scre en adj item ste p (4) is fixed
,
adj the other two so that to obtain the similar axis as above
*Note :
Use RF CH23 50IRE window pattern
** Repeat step 1 & 2 to get a regulated position
50% WHITE