How 2 add AUX IN in pre-2007 CD70 models

[yysnet]

Basically CD70 manufactured before year 2007 do not have aux in function. To activate CD70 Aux function in these head units, you will need to:

1. Update your CD70 to latest firmware, i.e. 10/10/2007.

2. Find A Tech2 or Vauxcom or similar product to activate your aux-in in the software. A new "Aux" menu will be appeared just as shown in the picture after a successful activation. (See picture)
This will be achieve by alter Code Index from 003 to 013.
Attachment 34426


3. Open your CD70 and solder some components (which are provided by this auction) to the mainboard, this will require an AVERAGE soldering skill.

Reference part number:
RS PN: (rswww.com)
192-516 0603 SMT Ceramic Cap,X7R,200V,100pF
391-296 0805 X7R ceramic capacitor, 16V 0.47uF
547-8638 MV SMT Al electrolytic cap,16V,47uF
679-0633 CRCW0603 Resistor T/R 0.10W,1%,68K
678-9667 CRCW0603 Resistor T/R 0.10W,1%,10K

Digikey PNuk.digikey.com)
568-3592-5-ND SOIC8 TDA8579

4.7k 0603 resistor is not included.

Tips: 0.47uF caps are in 0805 footprint, 47uF caps are in case E (or whatever equvalient) footprint, any other parts are in 0603 footprint.

The component location and reference schematic are in attachment.
Attachment 34427
Attachment 34428
Attachment 34429

Schematic is here:
Attachment 34430


4. Connect 3 wires to the back socket of unit, and possibly you could buy a 3.5mm stereo socket. Use PIN 24, PIN 25 as left and right, and Use PIN 18 as ground of audio input. (DO NOT GROUND THIS PIN TO VEHICLE GROUND, ALTHOUGH IT'S NOT HARM FOR DOING SO.)
Finish picutre:
Attachment 34431
Attachment 34432
Attachment 34433
Attachment 34434
Attachment 34435


Again, you take all risks for these modification... and AVERAGE DIY and soldering skill is needed. I finish all this with just a soldering iron.

[yysnet]

Also, I haven't use 47uF aluminium caps, instead i use X7R low esr caps, there are no significant differences ...

[markm]

WTF did you say LOL,

Maybe you should provide a service to do all this, FAB job there BTW

[lofty]

sent mine to Romania to have this done..excellent service and turn around (guy sells on ebay). Thanks again if you're reading

[Vauxhall Thru & Thru]

Looks great, but I don't think I could do this myself.
How about I send my unit to you, pay you some $, and you send it back all modified?

[djr69uk]

Thanks for this info. Although I must admit I'm a little scared at attempting this. Don't really understand what goes where lol!

As above... willing to pay dollar for this if someone fancies doing it and wants to be fairly compensated for their time?

[yysnet]

sent mine to Romania to have this done..excellent service and turn around (guy sells on ebay). Thanks again if you're reading

That guy is ChristTM if i remembered correctly.

I hope ChristTM don't mind this post....

Surely i believed most members can find someone do the soldering, if indeed you can't, i can help soldering, for a very small charge of parts and time...(To Mod: this is not a trade...this is not a trade...)

[lee gsi]

I can also do the soldering in the South for people.

[yysnet]

A complete guide can be down from here:

http://www.megaupload.com/?d=A6S1FEVY

[Hendry02]

on a more simplar subject how easy is it to convert to a colour screen rather then the mono orange and black screen?

does the firmware have to be updated or simple old for new??