I desire explain here a method to get a best LAN comunication in your dreambox 7020.
Do you need:
- welder of tin
- Two Condenser of tantalum 4.7 uF 35V.
Well, open your dreambox7020
To dismount the hard disk as you seen in this image
The following step, is dismont the modem. In the next image you can see the HOT ZONE where is located the condenser originaly (see a yellow arrow)
Well, replace the two condenser and see the polarity.
In this there is a participation of the 90/91 and 78/81 pines (micro chip AX88769)
you can see this Scheme (see datasheet AX88796)
You can see the finish result.