Hi Matthias, Andreas and all, At 11:39 12/01/2002 +0100, Matthias L�tzke wrote:
>Hello! > >I am searching for detailed pictures of both sides of a DVB-s rev 1.3 or 1.5 >card. >Would someone please be so kind to put his card onto a scanner or to make >photos of it. This will help to locate a possibility to get RGB or S-Video >output on rev 2.1 cards where the J2 connector is missing. I think, this might >help a lot of rev 2.1 card users to get better picture-quality. I can't agree more with your idea!. BTW, the quality of the pictures of your card are impresive. I'm a newcomer to this DVB-s cards and I've tried hardly to know what I should receive buying one of this cards, knowing the wanted features that has been dropped on revision 2.1, but it has not been possible :-(. At last, I ordered one with "closed eyes" and I'm "out of luck", as the received card is Rev 2.1 :-((. Lacking of a "solder side" picture of a version 1.3 card, I've spent some time with the pictures of versions 1.3, 2.1 also the card that I've received. At the area of J2, basically both cards are equal (of course, the 2.1 lacks of J2); what I want to say is that there are nine small components in a vertical row, between J2 and the 50 pins SMD memory, that are for the 'Bias' (four resistors) and 'Compensation' (four capacitors) of the RGB and CVBS outputs (see page 10 of the AV711x datasheet, NTSC/PAL Encoder Interface section) in both cards, but on version 2.1, six of this components aren't need if RGB outpus are missing!!!. The rest of components in this area are mainly for filtering and the CVBS output, so it's clear to me that the RGB outputs in J2 are taken directly of AV711x pins, with tracks that go by the "solder side of the PCB". Due the BGA (Ball Grid Array) package of the AV711x, if the "balls" for RC_OUT, GY_OUT and B_OUT are not passed to solder side, we are out of luck :-((. However, on 1.3 cards, it's clear that this balls are passed to the other side and that three tracks goes directly to pins 3, 5 & 7 of J2. My hope is that the same that the TT engineers have left the Bias & Compensation parts for RGB outputs, IMO *unneed* in 2.1, perhaps also have left the PCB_vias that pass the RGB ouputs to the solder side :-). Please!, it will be great if someone having a Rev 1.3 card and access to a digital camera, can take a good pictures (at least of the back side of the card, as a few dark picture of the components side is already at: <http://www.geocities.com/buenavista18/hauppauge1.3.jpg>) and make it(s) available to all (perhaps sending to Matthias, to put on his FTP). At 11:37 13/01/2002 UT, [EMAIL PROTECTED] wrote: >-------- Original Message -------- >Subject: [linux-dvb] Layout of rev 1.3 DVB-s cards (13-Jan-2002 10:33) >From: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] > >> I saw somewhere on the web a description of somebody who sucessfully did it. >> >> But I am sorry, I don't remember where. >> As I often read dvbforum.de it might have been there, maybe. >> J�rg > >http://www.lindy.cc/dvb >..Andreas Could you be a few more precise?; TIA. I don't understand German and the only that I find there is the URL below, about how to build a Scart or SVHS connectors, if the the card have the J2 connector, wich is not the case for rev 2.1 cards :-( : 'Here an overview about the J2 Connector' <http://www.lindy.cc/local/LinuxDVB.nsf/e95ed8396fac68cfc1256a010064762b/f50 a46f693a7e5b6c1256a0300654f91?OpenDocument> Best regards: -- Roberto Deza Asensio Universidad de Navarra Data Procesing Center [EMAIL PROTECTED] -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
