5-2
PL14.12EA
The VCOM Adjustment should be
performed when replacing the Digital
Main CBA.
2. VCOM Adjustment
1. Set the color analyzer at the zero point calibration
and bring the optical receptor pointing at the
center of the LCD-Panel.
Note:
The optical receptor must be set
perpendicular to the LCD Panel surface.
2. Turn the power on.
Note:
Execute the VCOM adjustment within 2
minutes after you turn the power on.
3. Enter the service mode.
4. Press [2] button two times on the remote control
unit to select “VCOM2(AUTO)” adjustment mode.
5. Press [CHANNEL UP/DOWN] buttons on the
remote control unit so that the color analyzer value
becomes minimum.
6. To cancel or to exit from the VCOM Adjustment,
press [CH RETURN] or [PREV CH] button.
The White Balance Adjustment should be
performed when replacing the LCD Panel
or Digital Main CBA.
3. White Balance Adjustment
Purpose:
To mix red and blue beams correctly for
pure white.
Symptom of Misadjustment:
White becomes bluish
or reddish.
1. Operate the unit for more than 30 minutes.
2. Enter the service mode.
3. Press [VOLUME DOWN] button three times on the
remote control unit to select “Drive setting” mode.
“Drive-” appears in the screen.
4. Set the color analyzer at the CHROMA mode and
zero point calibration. Bring the optical receptor
pointing at the center of the LCD-Panel.
Note:
The optical receptor must be set
perpendicularly to the LCD Panel surface.
Test Point
Adj. Point
Screen
[CHANNEL UP/DOWN]
buttons
M. EQ.
Spec.
Color analyzer
See below
Figure
Color Analyzer
To avoid interference from ambient
light, this adjustment should be
performed in a dark room.
Perpendicularity
ITEM
SPECIFICATION
Color temperature
x= 0.272 ± 0.003
y= 0.278 ± 0.003
Input Signal
Internal pattern
(30/50/80% raster)
Measurement point
Screen center
M. EQ.
CA-310 (KONICA MINOLTA
Luminance meter) or
measuring instrument as
good as CA-310.
Aging time
60min.
(Retail MODE/100IRE Raster
HDMI 1080i@60)
MODE setting of TV
Shipment setting/
Retail MODE
Ambient
temperature
25°C ± 5°C
Color Analyzer
Perpendicularity
To avoid interference from ambient
light, this adjustment should be
performed in a dark room.
