Panther PN-6730-UXP, User Manual

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6.4 Aligning the LCD
Aligning the LCD image to the screen must be done first. If you don’t check this first, later adjustments
may be a waste of time.
Rule No. 1: If it doesn't need adjusting, don't adjust
it.
Rule No. 2: Always follow Rule No. 1.
The adjustments in this section align the LCD image
to the screen, giving the image the right position and
size. Use the Geometry Pattern, described below, to
do general alignment. Use the Alignment Dashes to
hide an exact number of pixels.
Does the LCD have to be moved?
1. Turn on the power.
2. After one minute, aim the remote control at the
screen and press
LAMP ON
. When the lamps are lit,
press
MENU
.
3. Press the down arrow key to highlight LCD Align-
ment and press
ENTER
.
4. Highlight Geometry Pattern, press
ENTER
and
wait.
5. In a few moments you will see a grid pattern
slowly appear on the screen, a white grid enclos-
ing 16 black boxes. The outside lines are three
pixels wide and the interior lines are one pixel
wide.
! If the left side border is only two pixels wide, no matter
how far you move the LCD horizontally, highlight
Geometry Pattern and press the + or – buttons to fix it.
6. There are six dashes in each group, representing
the outside six pixel rows and columns of the
LCD. You won’t see them all because some will be
hidden behind the mullion. (If you have not read
and on, do so now.
7. To adjust the LCD:
• Highlight Left Edge, Right Edge or Horizon-
tal in the menu.
• Press + or – momentarily to move that part
of the LCD pattern one small amount.
• Press and hold + or – to move that part con-
tinuously.
! You may see only three dashes on the left side of the
screen, no matter how far you move the LCD
horizontally. If this happens, highlight Alignment
Dashes again and press the + or – a few times to make
all six dashes appear. Then move the highlight up to the
three motor controls and continue.
8. There is also a Geometry Pattern, which has three
pixels on the outside border and one pixels boxes.
9. Adjust the LCD to hide the number of pixels
shown in the table.
10. To exit the menu, press
PREV
and the pattern will
disappear.
How LCD Alignment works
Three motors move the LCD. The edge motors
move the LCD up and down and the horizontal
motor moves it sideways. Each time you push a right
or left key once, the motor moves a small amount
and stops. If you hold the button, the motor runs
continuously.
The motors move the LCD with eccentric cams,
which means they have a cyclic effect. If you hold the
button for one motor long enough, the image will
come back to where it started. There is some horizon-
tal movement when you move one side vertically, and
there may be a little vertical movement when you
move horizontally.
When you go too far in one direction and want to
go back, there is a little slack. It takes several ‘kicks’
in the opposite direction to make the LCD move.
Use the objective lens to change image size. Open
the screen (or reach through the rear) and rotate the
lens in the Electronics Bay. Rotating the lens adjusts
image size, not focus. (There is no control for focus.)
Adjust the image size so that you lose at least two
pixel on all four edges.
! Check the LCD position on each display. Check it each
time the displays are moved into a new position.
Shipping sometimes ‘adjusts’ the LCD position. It’s
best to check again every time Panther is moved.
! If you use RS232 commands to adjust the LCD, the
remote control will not work while the pattern is on.