[linux-dvb] activy dvb-t ALPS tdhd1-204A support?

webmaster lunastick lunastick at gmail.com
Wed Aug 13 23:35:10 CEST 2008


Hi,



On Mon, Aug 11, 2008 at 5:09 AM, Oliver Endriss <o.endriss at gmx.de> wrote:
> webmaster lunastick wrote:
>> Hi,
>>
>> I have also a AMC 570 with 2 dvb-t tuners. (activy dvb-t model
>> S26361-D1297-V300 GS2)
>> (Pcb has a print: ActivyAL BS 03601790A)
>> The chip is SAA7146AH. I opened the tuner tin box
>> and only chip that was visible was Epcos X7251D
>
> There should be more chips inside, maybe on the other side of the pcb.
> Which chips are outside of the tin box?
> Could you provide a hires picture of the board?
>
I should desolder the tuner to see chips on the other side of the pcb
and I don,t
want take the risk of breaking my tuner. However, I searched trough the
original windows .inf files and found this comment in a file that installs
right tuner settings

 8: Siemens Alps-T TDHD1
   ;    DVB-T Tuner with
   ;    TDA10046 COFDM Demodulator

So it seems that now we know the demodulator.
Do we still need to know what tuner is in use?



>> Lspci gives me almost the
>> same than below, I think the important part is the 5f60 adress which
>> means that our cards have alps tdhd1-204a tuners. It seems that
>> there is no linux support for this card type yet.
>
> Correct.
>
>> I also attached .inf file from the original windows installation if
>> it gives any help. (I found it here
>> http://forum.fujitsu-siemens.com/digitalhome/viewtopic.php?f=30&t=5622&st=0&sk=t&sd=a&start=15
>> and it mentions my card)
>>
>> I'd appreciate if somebody tells me if it is possible to
>> create linux support with a quick patch or not.
>
> Sorry, there is no 'quick patch'. ;-(
>
> I could not find any useful information about this tuner.
> No other card seems to use it, and I don't have this kind of hardware.
>
>> lspci gives me this:
>> 01:04.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
>>        Subsystem: Philips Semiconductors Unknown device 5f60
>> ...
>> I found this in the archives:
>> http://linuxtv.org/pipermail/linux-dvb/2007-January/015133.html
>> however my device is 5f60 where his card had 5f61
>>
>> I took the attached patch
>> http://www.linuxtv.org/pipermail/linux-dvb/attachments/20070103/46dbb191/activy-0001.obj
>> and changed all occurrences of 5f61 to 5f60.
>
> Cannot work.
>
> The card with subsystem id 5f61 has a Grundig tuner, which is supported.
> See http://linuxtv.org/hg/v4l-dvb/rev/46fe6767b0d4
>
> Unfortunately this will not help you.
>
> CU
> Oliver
>
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