Extron Electronics VN-Matrix 200 Series - Manual (Page 47)

Source Checkup
When diagnosing problems with an encoder or source, it is highly recommended that
a local monitor be connected to the VNC 200. If a monitor is not already connected as
part of the system, it is suggested that one be connected temporarily. See the following
flowchart.
Is the local monitor completely blank
?
STAR
T
YES
NO
Check the POWER indicator on the VN
-MATRIX Encoder
...
UNLIT
LI
T
FLASHING
What’s the proble
m?
Check the STATUS indicator
on the Encoder
...
UNLIT
LI
T
FLASHING
NO POWE
R
Check the PSU connection to the VN-MATRI
X.
Check for ‘green’ light on PSU
.
Check mains cabl
e,
fuse and suppl
y.
POWER/THERMAL FAUL
T
The unit has shut down due to either a power supply fault or over temperature condition
.
Check for obstructed ventilation grilles,
excessive ambient
temperatur
e.
Cycle the power off and on to reset the uni
t.
If the problem recurs and ambient temperature is within limits
, try using
a different PS
U.
NO SOURCE CONNECTED
/DETECTE
D
Follow the Controller Checkup section and follow the checks listed for ‘No Source Detected’.
SOURCE IS BEING STREAMED TO ONE OR MORE DECODERS
This proves that the Encoder is working OK
. If this source is not
being displayed on a particular Decode
r, check that you have not
exceeded the limit of
4 RTP unicast
streams.
SOURCE OK BUT NOT BEING STREAMED
Follow the Controller Checkup section
and check that all devices
are onlin
e.
If you have not already done so
, see
the Decoder Checkup.
Message Displayed… “No Source Detected
”
Source image is stable but has a color cast Source image is unstable or corrupte
d
Source image is badly framed
(black bars at
edges or edges croppe
d)
.
Check for loos
e/
incorrect connections or faulty cables between the source
and the Encoder
.
Check that the source is actually providing an output signal
(e.
g.
it may have
gone into a powe
r/screen saver mode
)
Check that the source type is supported and has been auto
-detected
correctly. If not
, try forcing the input to a manual source mode.
Check that an incompatible manual source mode has not been applied to the input
. If so,
try setting the input to ‘auto’.
Check that the Encoder is not in ‘Standby’ mode. Check for loos
e/
incorrect connections or faulty cables between the source
and the Encoder
.
Check that the source itself is actually stable
.
Check that the source type is supported and has been auto
-detected
correctly. If not
, try forcing the input to a manual source mode.
Check that an incompatible manual source mode has not been applied to the input
. If so,
try setting the input to ‘auto’.
Try adjusting the clock phase settings. Check whether or not the source has Macrovision copy protection and set the Macrovision Defeat option accordingly. Check that the correct color space as been applied to the source. Check for loos
e/
incorrect connections or faulty cables between the source
and the Encoder
.
Check that the original source itself is correctly framed
.
Try adjusting the Blanking settings on the Encoder.
VN-Matrix 200 Series • System Configuration 42