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View Full Version : Any updates on the NICAM issue?



Professor Yaffle
12-06-2007, 07:02 AM
I have just taken delivery of a US Tivo, and I was going to be using it with an STB but for various reasons, this isn't going to happen for at least a couple of months. So, I have been looking at PAL modding it, and while I would be happy for dual mono for a few months I am curious as to whether anyone had got any closer to getting NICAM working.

A few months back there was talk of solving the problem by using a 3410D or STV8216 on a daughter board as a sort of hybrid mark 1 mod. Did anyone give this a go in the end?

Also, is there anyone in the Wellington area who has some desoldering equipment I could use, and possibly has some experience of doing the PAL mod. I have only just arrived here from overseas and I literally only have a set of screwdrivers at the moment! ;-). Any assistance would be greatly appreciated.

Cheers

catdog
12-06-2007, 09:28 AM
Yes I managed to get NICAM working using a STV8216 on a daughter board - the original prototype has been running for a month or two now without any issues and sounds much better/clearer than the mono sound from the tuner.

I ran into an issue that the default settings were all fine - except the outputs are muted on startup! The tivo I2C bus *should* have been capable of turning the mute off, but for some unknown reason it refuses to communicate with devices at normally unused addresses. I have just completed writing code for a PIC microprocessor which turns the mute off instead, which is a simple workaround for the problem (the original prototype used a larger micro).

I will tidy up the schematic and post it to the original thread asap.

Darren King
12-06-2007, 08:11 PM
The now official (and sticky) thread is here: http://forums.oztivo.net/showthread.php?t=1458