[mythtv-users] Report: Watch out! UB435-Q V2 is NOT the same as UB435-Q
gavin at ytz.ca
Wed Oct 13 10:22:25 UTC 2010
On Wed, Oct 13, 2010 at 12:18 AM, Jarod Wilson <jarod at wilsonet.com> wrote:
> On Tue, Oct 12, 2010 at 10:54 PM, Gavin Peters <gavin at ytz.ca> wrote:
> > I just cracked my KW-UB435-Q V2 open, here's some of the chips I
> > Surface mount chips with many leads:
> > Labelled as a "7th generation tuner": LGDT3305
> > A very big chip (big here means 9mm square): NXP / TDA18271HDC2
> > Small chip on reverse side: CeMPIA / EM2874b
> > And that's it for the microchip looking things on this device. There's a
> > few larger items that look like voltage converters or transistors, and a
> > crystal looking things. I don't know much about electronics.
> Three main chips is correct. The older card is an NXP TDA18271HD/C2
> digital tuner, LG DT3304 atsc demodulator and eMPIA 2870 bridge
> chipset. So this one isn't very different, just a newer demod and a
> slightly different bridge chip. Both the demod and bridge chip should
> be fully supported, so it should indeed mostly be a case of connect
> the dots. Hopefully, its got a different usb device ID from the v1...
Indeed it does. The USB ID from lsusb is 1b80:e346.
I've read the code briefly: it looks like I need to figure out mask/value
amounts to put in the em28xx_reg_seq, tda18271_std_map, and a few other
> > On Tue, Oct 12, 2010 at 9:02 PM, Jarod Wilson <jarod at wilsonet.com>
> >> On Tue, Oct 12, 2010 at 7:35 PM, Gavin Peters <gavin at ytz.ca> wrote:
> >> > Last week, I sent out a report that the UB435-Q tuner works well. It
> >> > does!
> >> > It's a great tuner.
> >> > HOWEVER, I bought two more from newegg based on that success, and what
> >> > got
> >> > was a UB435-Q V2. This is a totally different device, and I don't
> >> > yet
> >> > if there's drivers (maybe Jarod will know and follow up here).
> >> > I examined the box and on mine, there's a difference in a sticker on
> >> > back, near the bottom. In an area labelled "SN" is a white sticker
> >> > a
> >> > product code, the words "MADE IN CHINA", and a barcode.
> >> > On the GOOD UB435, the text at the top of this sticker says:
> >> > On the I DON'T KNOW UB435, the text at the top of this sticker says:
> >> > KW-UB435-Q V2
> >> Didn't have a clue there was yet another revision of this stick. For
> >> starters, I'd crack the casing open and get a detailed listing of what
> >> all the components are. If the various components all have existing
> >> drivers (which is likely, as these are cheapo sticks, not likely to
> >> use the hot new latest and greatest stuff, and its also likely they
> >> are using at least some of the same components as the v1), its
> >> primarily a job of connect the dots to get it all wired up for that
> >> specific device ID.
> >> --
> >> Jarod Wilson
> >> jarod at wilsonet.com
> >> _______________________________________________
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> Jarod Wilson
> jarod at wilsonet.com
> mythtv-users mailing list
> mythtv-users at mythtv.org
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