[linux-dvb] Re: Status of NXT200X ? | ATI HDTV Wonder/ AverTVHD

Kirk Lapray kirk.lapray at gmail.com
Thu Oct 13 23:26:06 CEST 2005

I have read documents that say it uses a NXT2002, NXT2003, and NXT2004. Most
of the notable sources say it uses a NXT2004 (

I have the driver I have been working on sending the exact same i2c data as
the Windows driver. Everything is identical until it check for a signal
lock. The Windows driver returns a 0x20 on the i2c bus indicating a signal
lock, but all I get is 0x00 under Linux. There must be something else I am


On 10/13/05, Michael Krufky <mkrufky at m1k.net> wrote:
> Kirk Lapray wrote:
> > This is true, but on the HDTV Wonder the NXT2004 and Philips tuner are
> > integrated into one package. The NXT2004 is actually in the tuner metal
> > box. This module is called the Philips TUV1236D. It also uses the CX88
> > interface chip. So, besides the NXT2004 there is nothing similar
> > between the cards. I still have not been able to get the NXT2004
> > working correctly on the HDTV Wonder. I started off using the NXT2004
> > DVB driver that was posted to the DVB mailing list a few months back
> > written for the AverTVHD, but the HDTV Wonder is a completely different
> > setup. I have been able to write a driver that from what I can tell
> > completely mimics the Windows driver and I have gotten the firmware
> > loaded and the tuner changes channels, but for some reason the NXT2004
> > never reports a signal lock. There must just be something I am
> > missing. Once I figure out what I am doing wrong it shouldn't take much
> > to get it to work on other NXT2004 based cards as long as the tuner and
> > interface chips are supported.
> Kirk-
> I didnt see that "[linux-dvb] AverTVHD/NXT2004 patches" thread when it
> was first posted. Thank you for pointing it out. I cc'd this email to
> the list, maybe Patrick or Jean-Francois can say something about the
> status of the nxt200x module?
> I haven't yet tried Jean-Francois 's patch.... I think I'll give it a
> whirl later on.
> About the Philips TUV1236D, Google found this excel sheet that shows
> that it uses NXT2003. Is the sheet wrong? ...or maybe some registers
> might be different? (just a guess)
> http://hdtv.forsandiego.com/messages/1/ATSC_NTSC_Tuner_Specs-3646.xls
> AVerTVHD also has the NXT2004 inside the the same package with the
> tuner. It is a TDHU2-008A. I found some specs for this at:
> http://www3.alps.co.jp/alpscom/pdf/index_broadcasting-e.html
> Regards,
> Michael Krufky
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