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14
12 TROUBLESHOOTING
NOTES
1. Please note that if the output signal is disturbed or
interrupted by very strong external electromagnetic
interference, it should return and stabilize when such
interference ends. If not, turn the power switch off and on
again to reset the machine.
2. If the recommended actions still do not result in satisfactory
operation, please consult your CVG Dealer.
12.1 Power and Indicators
Problem Remedy
No power
1. Confirm that the rocker switch is in the “ON” position, and that the lamp is
illuminated.
2. Confirm that power connections are secured at the machine and at the
receptacle. Make sure the receptacle is active, outputting the proper mains
voltage.
3. If there is still no power, check the fuse. Remove power cord from the AC
outlet and from the machine and then, using a flat screwdriver, remove the
fuse holder located directly below the power connector. Confirm that the fuse
is good by looking at the wire connected to the ends of the fuse. If the wire is
broken, replace the fuse.
12.2 Video Signal
Problem Remedy
No video at the output
device, regardless of input
selected.
1. Confirm that your sources and output device are powered on and connected
properly. Video signals connected to the input of your machine should be of an
identical signal format at the output of your source. Video signals at the output
of your machine should be of an identical signal format as at the input of your
display or recorder.
2. Confirm that any other switchers in the signal path have the proper input
and/or output selected.
3. Use the Video Tester to test the video path leading to/from your Matrix
Switcher (see section 4.1 " Video Tester")
Video level is too high or
too dim.
1. Verify that the video line is well matched through 75ohm impedance,
otherwise it results in a video level that is too high or too dim when looping is
performed and the termination switches are not in proper position.
2. Confirm that the connecting cables are of high quality, properly built and
terminated with 75ohm BNC connectors. Check level controls located on your
source input device or output display or recorder.