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TV Tuner Card, Cable burned

By shuja52 ·
We ahve installed an internal TV Tuner card, the TV cable connecting TV Tuner card and the remote amplifier burnt, can someone find out why?
The Cable Connextion provider told no problem from their end, the Electrician clarify the same way..

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by TechKid In reply to TV Tuner Card, Cable burn ...

In the software, uncheck the setting that says "Burn cable after 'x' minutes of idle time"

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by shuja52 In reply to

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by Keith Hailey In reply to TV Tuner Card, Cable burn ...

The Software answer is parially correct.

You have to select "Cable" as the input with your set-up software. IF "Antenna" selected, you have an impedance mismatch that will cause a good deal of heat in the cable. There is a possibility that the card isn't burnt, though.

Remove and replace the bad cable
Start the "TV" program.
Enter the set up (ctrl-S or right click, set-up with ATI)

Select the Tuner Tab, Then you should have a selection for Cable Standard (select which country you are in)

Then select Cable,

IF Cable was already selected and not Antenna, Then the burnt Coax was probably shorted from a manufacturing defect, Crimping defect (if the Cable Installer made one on the spot) or from the center conductor shorting against the shielding (From not making sure that it went in to center hole properly, therefore bending and smashing it).

Probably the software, though. Hope you get it working. It's cool to watch TV while you're using Internet explorer.

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by shuja52 In reply to

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by shuja52 In reply to TV Tuner Card, Cable burn ...

One more thing ... customer have close circuit TV (cameras installed in his factory premises) and the CTV being recodred too.)

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by wlbowers In reply to TV Tuner Card, Cable burn ...

Where in the world did you get your video training, Sears. Selecting Cable or TV doesn't affect the impedance of the line.

If it is running on RG-59 or RG-6 it is 75ohm. It doesn't matter if it's coming from direct tv, comcast, jerrold, or channel master. If it is an RF TV signal it is 75ohm. If it ain't then it is broke.

Oh and by the way. The signal level to a drop is in the millivolts, unless it is coming from a distribution amplifier main out. If you had a usable picure that is probably not the case.

A shorted line will burn up the transmitting device or give you a bad signal or both.

What you probably had is a voltage loop. A piece of equipment probably went bad and did the damage. The cable company replaced the equipment and got the signal back. You really don't think they will admit to it do you.

I have drawn blue arc's between equipment chassi. That's why they make isolation transformers. I would put one in that line before I hooked it back up.

Good Luck

Lee

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by shuja52 In reply to

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by shuja52 In reply to TV Tuner Card, Cable burn ...

I couldnot understand woulbers last line?

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by shuja52 In reply to TV Tuner Card, Cable burn ...

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