[linux-dvb] Re: [PATCH] dvb-ttpci+budgetpatch integrated v22

[emard@softhome.net]

> >
> Where can i find description to modify 1.3 card?
> Need full TS for HDTV.

Right, you'll get full TS with it. Make the PCB using
the given instructions from Roberto Deza and grind it to 
become thin enough to fit in place.

Soldering, 6 important tips:

1. use long and sharp soldering bolt e.g. weller 
thermal grade 6 (I think that's 290 degrees C),
with tip 0.4mm wide.
It can be either new if you can obtain it or use 
some larger worn-out tip and grind it down to cca 
0.4mm like I did.

Thin tip is important not only because pin raster
is about 0.6mm but also e.g. 0.7mm thick tip is 
thermally too conductive and will detach small
PCB leads so you absolutely need a thin tip.

2. Use magnifying glass and strong light during soldering.

3. Use 0.5mm or thinner soldering wire.

4. Use battery powered multimeter with beeper for 
conductivity test, at the probes it should have 
low current (<3 mA) and low voltage (<4V). 
Make custom probes from 2 needles to precisely 
check all connections.

5. Use adhesive paper-based tape (used as protection
during painting) to cover all the rest areas you don't 
want soldering material to leak over except one PIN and 
a 2mm long part of PCB to be connected to that pin at 
a time! Solder it then, check with multimeter, remove paper,
check again that neighbouring pins are not connected to the
one you just soldered (they won't if you stick tape well) 
and proceed to the next pin with new tape.

6. Beware of static discharge, so ground everything 
especially soldering iron, the demodulator and your hands.

Emard