5 - 6
5.3
Common Questions (and Answers)
Here are some questions that may have been answered in other places in this manual. We pulled
them together here for your convenience. And because you might not have read the whole manual.
How high can I stack the display units in my system?
You can’t stack them. No stacking. Period.
Can I mount them upside down?
No.
Can I tilt them forward or backward?
Yes, the
back
of the display may be tilted up to 20 either
forward or backward from vertical. The screen is already
tilted 10 down, so this would make the screen tilt 30
down or 10 up.
Can I tilt them sideways?
Yes, up to 20 either left or right.
How do I get service help?
Contact the company that sold you the displays.
One of the LEDs is flashing. Does that mean trouble?
It may mean something isn’t right. The STANDBY LED
does flash sometimes, but it doesn’t mean trouble. Most of
the others only flash when something is wrong. See the
chart on page 5-3.
Why did my lamp fail before 8000 (or 4000) hours?
This is not unusual. The
average
lamp life is 8000 hours,
which means half of the lamps may fail
before
they reach
8000 hours. The lamps are not guaranteed to have any
particular length of life. (In the VN-3830-VA, the
average
lamp life is 4000 hours.)
One of the displays is darker than the others.
A dark display can be caused by many things; check them
all. Start by displaying the White
internal
Test Pattern.
Long lamp use: Lamps tend to become darker and
change color as they near the end of their life.
Black Level and White Level: Check them both. Poorly set
levels, or using a different computer, can change
brightness. See page 3-8.
Dirty mirror or lens: It requires lots of dust to significantly
reduce the light output, but it is possible. See page 4-4.
Color Balance: Check the color balance using the internal
test patterns. See page 3-12.
Can I set the display on top of a table?
No. The unit needs cooling air, which it gets from the
bottom. It needs 8 inches (20 cm) of clearance at the
bottom.
Can the unit be mounted flush against the ceiling?
Yes. This is one of the two mounting methods. See
chapter 2.
Does the unit need any clearance on the sides or back?
No.
Is the lower support bracket necessary?
Yes. It is not safe to rely on the hanger alone.
Summary of Contents for Leopard VN-3820-VA
Page 1: ...Leopard VN 3820 VA User Guide ...
Page 2: ......
Page 3: ...VN 3820 VA VN 3830 VA User s Guide 070 0032 06 7 October 2003 ...
Page 8: ...vi vi ...
Page 14: ...1 6 ...
Page 28: ...2 14 ...
Page 52: ...3 24 ...
Page 57: ...4 5 Don t spray liquids directly onto the face of the screen ...
Page 58: ...4 6 ...
Page 63: ...5 5 ...
Page 66: ...5 8 ...
Page 84: ...6 18 ...
Page 91: ...6 25 Bottom view showing measured locations of parts ...
Page 95: ...6 29 ...
Page 99: ...6 33 ...
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