Tivo losing sound - comes back after reboot

[Darren King]

Cods,

The intermittent sound loss on one channel only is still related to antenna problems and/or tuning. It is because the Micronas chip (ie the "Mark 2" sound decoder) cannot attain a fully clean sound carrier in the detection phase (ie when the TiVo initially switches channels) and therefore mutes the audio. Given it is intermittent means sometimes you have acceptible sound carrier levels, and sometimes not.

My suggestion is to firstly run palmod_config and fine tune channel 2 a bit, and then if still having problems re-check the antenna install for a balanced reception over all channels received. This is best done with a proper field strength meter rather than "eye and ear" testing if you can get hold of one.

[Cods]

Thanks Darren, I'll give palmod_config a go and tweak the tuning on the ABC this weekend, and see if that does the trick. If not, I'll get the antenna bloke back to do some balancing.

Not a complaint, but the Micronas / Mark 2 tuner seems, in my uneducated opinion, to be a tad, well, picky. As noted, my original antenna hardware / position / orientation / cabling really did suck quite badly, and it seems pretty fair that even though I'm LOS to the Mt Coot-tha Tx'rs, I had a crap signal input to the TiVo. It's worthy of note though that the Sony TV tuner and the dodgy $50 VCR tuner handled it a lot better than the TiVo tuner.

Will do some tweaking and see what results.

Thanks for the swift advice Darren - anyone reading this who hasn't already worked it out: Darren is your man for TiVo work!

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Cheers,

[Darren King]

Not a complaint, but the Micronas / Mark 2 tuner seems, in my uneducated opinion, to be a tad, well, picky. It's worthy of note though that the Sony TV tuner and the dodgy $50 VCR tuner handled it a lot better than the TiVo tuner.

That's a software issue which, unfortunately, I play no part in. On the whole there are very few people experiencing the same problems and I still maintain that in your case, like I said many months ago, it may well be too MUCH signal distoring the sound carrier given your very close proximity to the transmitters. Thinking of which, you were also one of the very first people with the Mark 2 modififcation and I think I remember advising to keep up-to-date with the latest palmod software releases. If you have not done so I suggest replacing palmod.o and palmod_config with the latest versions that also help in this area of sound loss.

Also it is worthy of note that I understand your comment but your dodgy $50 VCR or your Sony does not employ the same components as the TiVo so it is really comparing apples to oranges.