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Thread: Loss of signal after channel change

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    Default Loss of signal after channel change

    My T5 drops signal at times when I change channels. I have to power off/on to get the picture back up.

    Does anyone know what could be causing this? Power supply? LNB? Cables? Tuner?

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    Could be any of the above except the tuner I would check switch first
    Test to see if it happens when you change channels on the same satellite

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    Quote Originally Posted by nobodyspecial View Post
    Could be any of the above except the tuner I would check switch first
    Test to see if it happens when you change channels on the same satellite
    I mainly watch channels on sat 82. So the 'bad or no signal' prompt comes up even when I just go up or down one channel.

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    Run your coax to only the LNB for that bird and see if dropouts still happen. The box is well known as running multiple LNBs poorly--not enough amps to drive them. Most boxes send the entire LNB V/H voltages;switch settings; etc to the dish with EVERY channel change often with a reset to default levels/sw setting as first step--so even though you are on the same satellite, lots of things get set and reset.

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    The audio cuts out for a split second periodically also. I'm guessing this is the same issue?

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    Quote Originally Posted by ssr316 View Post
    I mainly watch channels on sat 82. So the 'bad or no signal' prompt comes up even when I just go up or down one channel.
    ok this mite help..."Satellite List/All Satellite" and/or check the capacitor's

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    Quote Originally Posted by baseman View Post
    ok this mite help..."Satellite List/All Satellite" and/or check the capacitor's
    it's not a switching satellites issue, that's for sure...i lose signal when changing channels on the same satellite, yet some channels on that same satellite will come up when i change...i thought it might be a TP issue, but i rescanned and still have the same issue

    how do i check capacitors?

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    The easy way is to pop off the box cover and look at the power supply. If a capacitor is misshapen or the top is bulging, then that is often bad. If a capacitor is leaking a whitish colored discharge then it is bad for sure. But, even good looking capacitors can be tested (there are meters to do this) to see if they are bad. Electrolytic capacitors are usually tall cylinders with two leads on one end (with a rubber looking plug), one lead will be marked as negative and one might be marked positive--they will be marked with a microfarad value (their capacitance) and a voltage maximum that tells upper limit of the voltage that can be applied to it. There are also temperature limits on them--get them too hot and they might blow.

    If you are getting audio dropouts, I would guess dish pointing first.

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