Sylvania LC155SL8 Service Manual page 18

Item (on the service
remote control)
D2-BRT
D2-CNT
D2-CLR-R
[MENU] → [5]
D2-CLR-B
D2-TNT
D2-SHR
D3-BRT
D3-CNT
D3-CLR-R
[MENU] → [6]
D3-CLR-B
D3-TNT
D3-SHR
DT-BRT
DT-CNT
DT-CLR-R
[MENU] → [7]
DT-CLR-B
DT-TNT
DT-SHR
COR(C/D1)
[VOL n] → [1]
C-COR(C/D2)
COB(C/D1)
[VOL n] → [3]
C-COB(C/D2)
DR(C/D1)
[VOL n] → [4]
C-DR(C/D2)
DB(C/D1)
[VOL n] → [6]
C-DB(C/D2)
Button
Data
Value
125
210
95
95
128
112
127
190
100
100
115
112
125
210
120
120
120
112
128
128
128
128
128
128
128
128
The following adjustment normally are not
attempted in the field. Only when replacing the
LCD Panel then adjust as a preparation.
2. White Balance Adjustment
Purpose: To mix red, green and blue beams correctly
for pure white.
Symptom of Misadjustment: White becomes bluish
or reddish.
Test Point Adj. Point
VOL. n
Screen
buttons
M. EQ.
Pattern Generator,
Color analyzer
L = 3 cm
INPUT: WHITE 70%, 20%
Note: Use service remote control unit
1. Operate the unit for more than 20 minutes.
2. Input the White Purity.
3. Set the color analyzer to the CHROMA mode and
bring the optical receptor to the center on the
LCD-Panel surface after zero point calibration as
shown above.
Note: The optical receptor must be set
perpendicularly to the LCD Panel surface.
4. [RF/VIDEO1]
Enter the Service mode. Press [VOL n] button on
the remote control unit and select "C/D1" mode.
[VIDEO2]
Enter the Service mode. Press [VOL n] button on
the remote control unit and select "C/D2" mode.
5. [RF/VIDEO1]----(APL 70%)
Press [6] button to select "DB(C/D1)" for Blue
adjustment. Press [4] button to select "DR(C/D1)"
for Red adjustment. When "x" value and "y" value
are not within specification, adjust "DB (C/D1)" or
"DR (C/D1)". Refer to "1. Initial Setting."
[RF/VIDEO1]----(APL 20%)
Press [3] button to select "COB(C/D1)" for Blue
adjustment. Press [1] button to select "COR(C/
5-2
Mode Input
White Purity
[RF/VIDEO1]
C/D1 (APL 70%)
[VIDEO2]
or
C/D2
(APL 20%)
Spec.
x: 0.271 to 0.281,
y: 0.277 to 0.287
Figure
It carries out in a darkroom.
Perpendicularity
Color Analyzer
A7120EA