Sharp 21K-FD5RU, Руководство по обслуживанию

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21K-FD5RU
3 – 20
5. HORIZONTAL, VERTICAL, DEFLECTION LOOP and FOCUS ADJUSTMENT
6. SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST (1) ADJUSTMENT
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
31
,
B-D
auto switch to
31
,
G-CUTOFF (G-C) UP
RC key "2" (HEX 40)
R-C auto switch to 95 , G-C auto switch to 95
,
B-C
auto switch to
95
,
G-CUTOFF (G-C) DOWN
RC key "5" (HEX A0)
Sub-brightness V06 auto switch to 75.
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 For 21K-FD5RU
adj) First use Minolta Color Analyzer CA100, let the gun point at Dark White position
(I2C BUS CONTROL) (as drawing attach), Adj V06 until LUMINANCE Y become 5 cd/m2 , then let
the gun point at White position ( as drawing attach), Adj V04 until LUMINANCE Y White Dark
become: 200 cd/m2. White
5.5% IRE 9.5% IRE
Adj the R-D & B-D until the axis of color temperature become *Note :
Signal using W/B Pattern Generator
X=300, Y=310 7500
o
K (21K-FD5RU ) SX-1006 (IWATSU) or equivalent.
Window Pattern Signal output level
are as above:
(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
the data adjusted in step 1 , adjust R-C, G-C & B-C but between them, first color
appears in Screen adj item 1)-4 is fixed
, adj the other two so that to obtain the similar
axis as above.
** Repeat step 1 & 2 to get a regulated position
WINDOW PATTERN SIGNAL
50% IRE
( 6 )After screen Adjustment, adjust R-D to 63 and B-D to 63 for White Balance Adj.