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The trick is, whenever the manual says digital satellite receiver, change that to cable box. There are identical connections on a satellite box and a cable box.
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Do you hear a noise when you press eject?
U88 indicates a protect mode, and if it stays on, it usually means a terminal error has occurred, especially since you say it happened during recording. You can save the DVD by removing the cover of the DVD player. The only other last ditch effort to save it is to unplug it, and hold the power button on the front of the unit for about 30 seconds to drain residual power. If the error is still there, the processor is stuck, and it's an expensive repair.
I'm not very hopeful of a U88 error being shown. It's made to go into recovery mode, and eventually the error clears. But since it's stuck on, that's a big problem. I'm sorry to have to be the bearer of bad news, but a new recorder is cheaper than a U88 repair in most cases.
New machines have updated software, and are built to work with other modern equipment. Sometimes it's just time for a new machine.
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