Extron Electronics DVS 150 - Manual (Page 32)

Troubleshooting, cont’d
DVS 100 and DVS 150 Troubleshooting 5-2
This section gives recommendations on what to do if you have problems
operating the DVS 100 or DVS 150, and it provides examples and
descriptions for some image problems you might encounter.
Following are some tips to help you in troubleshooting.
1. Some symptoms may resemble others, so you may want to look
through all of the examples before attacking the problem.
2. Be prepared to backtrack in case the action taken doesn’t solve the
problem.
3. It may help to keep notes and sketches in case the troubleshooting
process gets lengthy. This will also give you something to
discuss if you call for technical support.
4. Try simplifying the system by eliminating components that may
have introduced the problem or made it more complicated.
5. For sync-related problems: Portable digital projectors are designed
to operate close to the video source. Sync problems may result
from using long cables or from improper termination. A sync
adapter, such as Extron’s ASTA (active sync termination adapter),
may help solve these problems.
6. For LCD and DLP projectors and plasma displays: In addition to the
sync-related information above, check the user’s manual that
came with the projector for troubleshooting tips, as well as for
settings and adjustments. Each manufacturer may have its own
terms, so look for terms like “auto setup”, “auto sync”, “pixel
phase”, and “tracking”.
Operating Problems
The table below shows some common operating problems and their
solutions.
Problem Cause Solution
No image The input signal is Attach an input device that is
appears. incompatible. compatible with NTSC 3.58,
NTSC 4.43, PAL, or SECAM.
Freeze mode was Deactivate freeze mode
entered when the (page 3-4).
image was black.
The scaled output
Change the scaled output to a
rate is too high for compatible resolution
the display. (page 3-3).
The image is Freeze mode is on. Deactivate freeze mode
frozen. (page 3-4). If that does not
work, unplug the power cord
from the scaler, then plug it
back in.
The image is The scaled output Change the scaled output to a
flashing. rate is too high for compatible resolution
the display. (page 3-3).
Inputs cannot Autoswitch is Turn off autoswitch (page 2-7).
be switched. turned on.
Troubleshooting