A) Internal Pattern Signal Will Be Displayed - Sharp 81GF-63E Service Manual

1− 1− 1− 1− HORIZONTAL SHIFT 1−

a) Internal pattern signal will be displayed.

b) When volume-up button is pressed, picture moves to the left.
c) When volume-down button is pressed, picture moves to the right.
d) Adjust the horizontal location to obtain picture centering (fig. 2).
2− 2− E-W WIDTH 2− 2− 2−
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, horizontal scanning increases.
c) When volume-down button is pressed, horizontal scanning decreases.
d) Adjust the horizontal amplitude to obtain 9% overscan (fig. 3).
3− 3− 3− 3− PIN PHASE
3−
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, slide pincushion changes.
c) When volume-down button is pressed, slide pincushion changes.
d) Adjust the PIN PHASE to obtain condition as in (fig. 4).
4− 4− 4− 4− PIN AMPLITUDE
4−
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, slide pincushion changes from
pincushion to barrel shape.
c) When volume-down button is pressed, slide pincushion changes from
pincushion to barrel shape.
d) Adjust the PIN AMPLITUDE to obtain condition as in (fig. 5).
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, slide pincushion changes from
pincushion to barrel shape.
c) When volume-down button is pressed, slide pincushion changes from
pincushion to barrel shape.
d) Adjust the UPPER CORNER CORRECTION to obtain condition as in (fig.
6).
6− 6− LOWER CORNER CORRECTION 6− 6−
6−
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, slide pincushion changes from pincushion
to barrel shape.
c) When volume-down button is pressed, slide pincushion changes from
pincushion to barrel shape.
d) Adjust the LOWER CORNER CORRECTION to obtain condition as in (fig. 7).
7− 7− 7−
7− VERTICAL LINEARITY 7−
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, upper picture scanning decreases and
lower picture scanning increase.
c) When volume-down button is pressed, upper picture scanning increases and
lower picture scanning decrease.
d) Adjust the vertical symmetry to obtain symmetry scanning between upper and
lower picture (fig. 8).
8− VERTICAL AMPLITUDE 8− 8− 8− 8−
a) Internal pattern signal will be displayed.
b) When volume-up button is pressed, vertical size of picture increases.
c) When volume-down button is pressed, vertical size of picture decreases.
d) Adjust the vertical size to obtain overscan (fig. 9).
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81GF-63E
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Fig. 9