Kramer Electronics TP-1xl user manual Audio Signal, Equipment in your signal path

Problem	Remedy
Noise bars are "rolling" up	Hum bars (ground loop) are caused by a difference in the ground potential of any two or
or down in the output	more devices connected to your signal path. This difference is compensated by routing
image	that voltage difference through any available interconnection, including your video cables.
or:		WARNING!
Low frequency Hum in the
		Do Not disconnect the ground from any piece of video
output signal
		equipment in your signal path!
	Check the following to remove hum bars:
	1.	Confirm that all interconnected equipment is connected to the same phase of power, if
		possible.
	2.	Remove equipment connected to that phase that might introduce noise, such as motors,
		generators, etc.
	3.	Disconnect all cables and reconnect them one at a time until the ground loop
		reappears.
	4.	Disconnect the affected cable and replace it, or insert an isolation device (opto isolator
		or transformer) in the signal path.

13.3Audio Signal

Problem	Remedy
No audio at the output	1.	Confirm that your sources and output devices are powered on and connected properly.
device, regardless of input		Audio input of your Twisted Pair Interface should be properly wired to the output of
selected		your source. Audio output of your Twisted Pair Interface should be properly wired to
		the input of your line amplifier or output device (recorder, display, etc.) .
	2.	Confirm that all devices in the signal path have the proper input and/or output selected.
Audio level is too low	1.	Confirm that the connecting cables are of high quality and properly built.
	2.	Check level controls located on your source input device, output display or recorder.

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