Read Sony KDE-50XS955 Service Manual online
KDE-50XS955 (UC) 2-1
SECTION 2
ADJUSTMENTS and TROUBLESHOOTING
2-1. WHITE BALANCE ADJUSTMENT
When the Panel or DE1 Board is replaced or is repaired, W/B
should be adjusted.
should be adjusted.
2-1-1. Measurement equipment
1. Color analyzer (CA-100 manufactured by MINOLTA)
2. Signal generator (ASTRO DESIGN VG-828D)
2. Signal generator (ASTRO DESIGN VG-828D)
2-1-2. Measuring procedure
1. Dab the W/B adjustment jig (CA-100) at the glass face of the
panel.
2. Connect the Signal generator (VG-828D) to the component
terminal.
3. Input All-white signal (70%).
4. Make the settings as follows.
4. Make the settings as follows.
• Set the quality mode to PRO.
• Set the PICTURE to MAX.
• Set the Color corrector to Low.
• Set the PICTURE to MAX.
• Set the Color corrector to Low.
5. Set the color temp, be adjusted cool.
6. Adjust the color temperature of the “highlight” side with the
6. Adjust the color temperature of the “highlight” side with the
following items of side mode menu, fixed a value of one of
RGBs 512.
RGBs 512.
There are 3 mode (COOL, NEUTRAL, WARM):
MODE
COLOR TEMPERATURE
W/B
COOL
13550K + OMPCD
4
NEUTRAL
9300K + 8MPCD
2
WARM
8000K + 8MPCD
1
*Operation Register
Service mode “27 MAIN _WB”
5 : GAINR
6 : GAING
7 : GAINB
6 : GAING
7 : GAINB
7. Adjust Cool, Neutral, Warm of each color temperature.
Adjustment target values:
MODE
X
Y
COOL
0.2684 ± 0.003
0.2700 ± 0.003 13550K + 0MPCD
NEUTRAL
0.2849 ± 0.003
0.2931 ± 0.003
9300K + 0MPCD
WARM
0.2951 ± 0.003
0.3044 ± 0.003
8000K + 0MPCD
2-1-3. Service Mode
1. How to Enter Service Mode
1) Turn on the main power switch to place this set in standby
mode. (The LED will light red.)
2) Press the buttons on the commander as follows to enter
service mode.
2. Press the JUMP key on the commander three times.
3. How to Adjust
3. How to Adjust
“27 MAIN_WB”
Category name.
(Can be changed with the 2 and 5 keys on the commander.)
(Can be changed with the 2 and 5 keys on the commander.)
5 GAINR 512
Data
Can be changed with the 3 and
6 keys on the commander.
6 keys on the commander.
Item Name
Item No.
Item No.
4. After the adjustment is completed, save the data using the
MUTE and ENTER keys.
Can be changed with the 1 and
4 keys on the commander.
4 keys on the commander.
Enter the
“Service mode”
5
(VOLUME +)
(DIGIT 5)
(DISPLAY)
(POWER)
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