Chapter 5 Troubleshooting Chart; Troubleshooting - Proxima Oviation 842 Quick Start Manual

Chapter 5

Troubleshooting

Please refer to this troubleshooting chart before calling a reseller for assistance.
Problem
No computer image
projected
No image on computer
screen
Monochrome on color
monitor
Streaks on monitor
Faint screen
Jittery, fuzzy letters
Image off-center
Cannot get entire image
on screen; scrambled
image
One or more colors
"shimmer " on-screen
No video image projected
Colors weak in video
(NTSC/PAL/SECAM) mode
Getting excess white or
washout in video
(NTSC/PAL/SECAM) mode
Black and white image
from color SECAM input
Remote Control does not
work
Tiny dim or colored points
of light
Likely Cause
1. Loose cable
2. No power to computer
3. Incompatible video
system
4. No power to projection
panel
5. External port not
activated
6. Overhead projector
lamp not turned on.
Cable not connected
Computer was turned on
before projection panel
Video cable plugged into
computer is upside-down
Low contrast
Out of sync
Position controls (arrow
keys)
Compatibility problem
SYNC or CONTRAST is
out of adjustment
1. Video Source(s)
improperly set-up
2. Loose/improper cabling
1. Weak video signal
2. CONTRAST setting
may be too low
Video signal level too high
Ambiguity in video signal
Batteries upside-down or
old
This is a normal LCD effect
Chapter 5 • Troubleshooting
Possible Solution
1. Check and secure cable
connections
2. Turn on computer
3. If possible, check computer
with another monitor
4. Power up panel; Plug in AC
cord (both ends); Make sure
outlet is on
5. Activate the external port on
your laptop
6. Turn the overhead projector
on
Connect cable
Turn projection panel on, then
re-boot computer
Check and re-set cable
connections
Adjust CONTRAST
Adjust SYNC control
Adjust position controls; if image
will not center, check for
compatibility problems
Make sure your system is
compatible with one of the
standards listed in Appendix A
Adjust SYNC or CONTRAST keys
1. Check video source(s)
(composite or S-VHS) for
power on and proper
operations
2. Check and secure cabling
between video source(s) and
projection panel
1. Check for faulty video
source, bad connection, or
frayed cable
2. Adjust CONTRAST level
Adjust CONTRAST level
Activate Menu Window and
select SECAM as the video
source
Check battery placement or
replace with new batteries
None
User's Guide • 5–1