On Tue, Jan 07, 2003 at 07:41:02PM +0100, Gunther Mayer wrote: > Marius Kotsbak wrote: > > I have started reviewing the code in tuner.c to find why the radio on > > PCTV PRO with MT2030-tuner isn't working. > > Yes, radio doesn't work on 3fdx Voodoo200/ TV/FM neither for which > I implemented mt203x tuner support. Though I don't know why. > > Note the Pinnacle PCTV MT203x-type card has other chips in the audio path too, > e.g. SAW filters or tda988x chips, so consider these too ! > The spurcheck is a red herring (it never triggers for FM). I found the datasheet of the tda9887 here: http://www.semiconductors.philips.com/cgi-bin/pldb/pip/TDA9887TS/V3.html, so I will review that driver code too. Great if anyone else could do that too. > > > > > First I need to know if it has worked well before? > > > > I have found one possible error source, and that is the spurcheck, which > > is as I can see missing. The mt2032_spurcheck() just print some > > debug-information, but never touch other than local variables, don't > > talk to any hardware, and always return 1. Where it is called, it is > > commented "should recalcuulate lo1...". > > > > What I am not sure of is if this is necessary for radio tuning. In the > > datasheet it is noted that the spur removal isn't required for north > > Ameracan FM, which seems to have the same range as the norwegian (which > > doesn't work well). > > > > Does anyone (particulary the driver authors) know any other part of the > > code I can search for errors? The symtoms as I have said is that the > > tuning of radio is bad, som I can only hear sound some seconds before it > > turns the sound off. Sound might come back later automatically and > > last for some seconds. > > > > Marius K > > > > > > > > -- > > video4linux-list mailing list > > Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > > https://listman.redhat.com/mailman/listinfo/video4linux-list > > > > > > > -- > video4linux-list mailing list > Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/video4linux-list
