Horizontal Position (Progressive And Hd Mode); Scanning Area Check - Sharp 50NP4 Service Manual

Adjustment procedure
(1) Go to "Sub Brightness" adjustment in I
ADJUST mode (press Input and Power button
on Control panel at same time), using
and then key.
(2) Then adjust "Sub Brightness" using
increase or decrease the value, according to
figure. (Visually adjust).
(3) After adjustment, press MENU button to exit I
ADJUST mode. (Data is stored in memory).
Note: When selecting SUB-BRIGHTNESS mode the
microcontroller sets the CONTRAST and
COLOR to MIN. automatically, but make sure
that the other conditions are center.
Directly observe the screen by eye without using
a mirror.
2.16 Horizontal position adjustment
Adjustment preparation
(1) The set should face East or West.
(2) Set video conditions to factory preset.
(3) DIGITAL CONVERGENCE adjustment should
be finished. (Progressive mode and HD mode).
Adjustment procedure
PROGRESSIVE MODE
(1) Receive a circle pattern.
2
(2) Go to I C Adjustment mode by pressing INPUT
and POWER button on control panel at the
same time.
(3) Choose H. POSI item by using
(4) Adjust HOR. POSITION as following by using
, keys.
Spec: Balance Left/Right side display position
for H. position. H. size marker 0.7~1.5.
HD MODE
(1) Input 1080i (fH=33.75kHz) component circle
pattern signal to VIDEO 1 or 2.
2
(2) Go to I C Adjustment mode by pressing INPUT
and POWER button on control panel at the
same time.
(3) Choose H. POSI item by using
(4) Adjust HOR. POSITION as following by using
, keys.
2 C
, keys
, keys to
2 C

2.17 Scanning area check

Checking condition
, keys.
, keys.
46
Spec: Balance Left/Right side display position
for H. position.
PROGRESSIVE MODE
(1) Digital convergence adjustment should have
been completed.
(2) Receive the circle pattern signal.
(3) Brightness/Contrast - standard condition
Contrast:max
Other controls:center position
(4) Check that the scanning area matches with the
following drawing.
Top and bottom of the circle is between
outer edge and inner edge.
Outer edge of the circle
3 5
H size marker
0.7~1.5
HD MODE
(1) Receive 1080i circle pattern No.59 of LT1611*,
LT1608* of LEADER signal generator.
3~4 scales
1~2 scales
4 grids
¥ LT1611 : Programmable Video Generator
¥ LT1608 : Video Encoder
Inner edge of the circle
5 3
H size marker
0.7~1.5
3~4 scales
3~4 scales
6 grids
6 grids
4 grids