On 16 января 2010 15:18:07 paul10@xxxxxxxxxxxx wrote: > Igor wrote: > > Accordingly datasheet possible demod addresses are 0x68, 0x69, 0x6a, > > 0x6b only. > > > Possibly there is some DM1105 GPIO drives reset for demod. > > I assume it is last (26, top right if you look from card elements side) > > pin on tuner. > > > You can visually trace way from can tuner. Or use multimeter. > > Sorry, that is a bit beyond me. > > If I understand correctly, I'm looking for the top right pin from the > tuner when I'm looking at the side of the card that has all the chips on > it. I can see that, and there are a number of traces that run from there > to the DM1105, and also a few that run to other components on the card. > > I'm assuming I need to follow the topmost of the traces that go to the > DM1105, and see which pin on the DM1105 it goes to. > > My eyesight isn't that good...but I have a magnifying glass. If I follow > the topmost of the traces it looks to run to the rightmost pin on the top > row of pins on the DM1105, when the writing on the DM1105 is the right way > up. I didn't find a data sheet for the DM1105, so I can't tell if that is > a GPIO pin or not. > > The next trace down from the top right on the tuner appears to end without > connecting. It ends in a small brass circle, and doesn't appear to go > through to the back of the board and connect anywhere. The next one below > that goes to the fifth pin in from the right hand end of the top row on the > DM1105. > > Am I doing the right thing here - does this make sense? > > I've drawn on the photo so you can see what I'm doing. Refer: > http://planar.id.au/Photos/img_1964%20%28copy%29.jpg. The far right blue > line comes from the top most right hand pin on the tuner, runs under the > board at the brass circle, and comes out again to join on to the rightmost > pin. The next blue line in is the one going to the fifth pin, it is the > third track down coming from the tuner. In between the two is a track that > appears to go nowhere. I've marked in white roughly where they are coming > out of the tuner. > > Thanks again for all your help, > > Paul Well, as I understood, GPIO15 drives reset for demod. dm1105 driver needs little patching. -- Igor M. Liplianin Microsoft Windows Free Zone - Linux used for all Computing Tasks -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
