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2.15 BLUE DEFOCUS ADJUSTMENT
Preparation for adjustment
(1)
Optical and electrical focus adjustment
should be completed.
(2)
The convergence adjustment should be
completed.
(3)
VIDEO control should be set Factory Preset
condition.
Contrast : Max.
other items : Center
Adjustment procedure
(1)
Input Cross-hatch signal to VIDEO or RF
input.
(2)
Turn the B FOCUS VR fully clockwise.
(3)
Adjust sticking out level of Blue as the spec
of below table with turning the FOCUS VR
counterclockwise.
BLUE DEFOCUS
CHASSIS
SCREEN SIZE
43"
STICKKING OUT
1.5~2.0
Note: The view point should be limited to the center
of the screen for this adjustment. (FOB 0.0)
2.16 SUB BRIGHTNESS ADJUSTMENT
Adjustment preparation
(1) Pre-heat 20 minutes or more before the
adjustment.
(2) Receive the color bar signal.
(3) The vertical incident illumination on the screen
should be 20 lux or less.
Adjustment procedure
(1)
Go to "Sub Brightness (item No 38)" adj.
mode by using R/C.
(2)
Adjust Sub brightness as following spec. by
using R/C.
DP2M
UNIT
50"
INCH
1.5~2.0
mm
Sticking out
of blue
(3)
Press "MUTE" key on R/C to write the data.
REMARKS
!
Observe the TV SET screen directly
by eyes; do not use a mirror.
A0
A1 A2
A3
Adjustment specification
Quality control specification : Within ±0.5 step
* Note: During the SUB-BRIGHTNESS adjustment
mode, TV µcon changes the CONTRAST and the
COLOR controls to Min., but the other controls are
not changed automatically.
Make sure that the other controls are set center.
Sink to
black
DP2M
A0
!
Note: Actual procedure;
Once A1 is set to black and is seen
as dark as A0 (the level that the
border of the two cannot be
identified), increase the brightness by
19 steps.
A6
A7 A8
A9
A1
A
A4 A5
: Within ±0.3 step
Slightly for
black
A1
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