Kramer Electronics VM-3Sxl - Manual (Page 11)

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KRAMER ELECTRONICS LTD.
9. TAKING CARE OF YOUR VIDEO AMPLIFIER
Do not locate your amplifier in an environment where it is susceptible to dust or moisture. These may damage
the electronics, and cause erratic operation or failure. Do not locate your amplifier where temperature and
humidity may be excessive. Do not clean your amplifier with abrasives or strong cleaners. Doing so may
remove or damage the finish, or may allow moisture to build up. Take care not to allow dust or particles to build
up inside unused or open connectors.
10. 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,
disconnect power source from the machine and reconnect again
to reset the machine.
2. If the following recommended actions still do not result in
satisfactory operation, please consult your KRAMER Dealer.
10.1 Power And Indicators
Problem Remedy
No power 1. Confirm that the LED is illuminated.
2. Confirm that power connections are secured at the amplifier and at the
receptacle. Make sure the receptacle is active, outputting the appropriate
voltage.
10.2 Video Signal
Problem Remedy
No video at the output
device, regardless of input
selected
1. Confirm that your sources and output device are turned on and connected
properly. Video signals connected to the input of your amplifier should be of
an identical signal format at the output of your source. Video signals at the
output of your amplifier should be of an identical signal format as at the input
of your display or recorder.
2. Confirm that any other amplifiers 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 amplifier
(see section 4.1 "Video Tester")
Video level is too high or
too dim
1. 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.