Modification Guide CD70 NAVI

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CD70 AUX IN Modification Guide

Page 1

YOU TAKE YOUR OWN RISKS FOR THIS MODIFICATION! THIS IS ONLY A

GUIDE.

YYSNET MAR 2012

GENERAL

STEP 1

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

Noted that firmware updates require an update disc, this disc is different from

language disc. Normally you could request this disc from dealer or borrow

from a friend; this is a one time job anyway. Skip this step if you already got

2007 firmware.

To upgrade the firmware, simply put the update CD to NAVI slot, and follow

the instructions. This step takes about 15 minutes.

STEP 2

Find a Tech2 or vaux-com or similar product to activate your aux-in in the

software.

A new "Aux" menu will be appeared just as shown in the very last picture of

this document after a successful activation.

Audio pass is not required for this process.

Use your tech2 or vaux-com or op-com, go to EHU menu, change Code index

to 013, (Astra models please change it to 012).

STEP 3

Open your CD70 and solder some components (which are provided by this

auction) to the main board, this will require a good soldering skill.

CD70 can be easily open with a small flat (to help open the panel), a T9 and a

T10 screwdriver.


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STEP 4:

Connect 3 wires to the rear connector of unit, and possibly you could buy a

3.5mm stereo socket.

Jack socket is not included, can be easily sourced. e.g. Maplin, Ebay.

The wires and socket will be used for audio signal input, e.g. from your

iphone.

For example:

*3.5mm Stereo jack socket in Maplin, order code: FK03D

*Or you may purchase the tray with jack socket from dealer (very rare):

-Storage tray with jack socket PN: 13254495

-Lead for jack socket PN:13255833


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GUIDE.

YYSNET MAR 2012

COMPONENT LIST

Item Quantity Reference Value

_____________________________________________________

1 2 R1, R2 470

2 2 R3, R4 56k

3 2 R5, R6 100k

4 3 C1, C2, C10 680p

5 5 C3, C4, C5, C6, C7 470n

6 2 C8, C9 100p

7 2 C11, C12 47u

8 1 U1 TDA8579

NOTE:

As a rule of thumb, do NOT leave your tip of solder iron on the pin of component for

longer than 5 seconds.

Capacitors C11, C12 are polarized. Black mark in the capacitor indicate negative (-),

and the other side is positive (+).

1uF = 1000nF


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FITTING GUIDE

TOOLS:

You will need:

1. A small tip solder iron, at lease 25w, preferably temperature controlled.

2. Some solder wire and flux.

3. Some small tip tweezers.

4. A T9 screwdriver.

5. A flat screwdriver.

6. Patients.

7. See point 6.

TAKE YOUR CD70 APART

STEP 1:

Make sure you get have a suitable surface to work with, and place you CD70

there.


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STEP 2:

Use your flat screwdriver, take off the top and bottom metal plates.

STEP 3:

Use your T9 (or T10) screwdriver, take off two copper clips.


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STEP 4:

Carefully take off front panel with your flat screwdriver.

STEP 5:

Undo 8 screws with T9 screwdriver and take off both Navi and CD drives. Be

careful when disconnecting the connectors.


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STEP 6:

With your flat screwdriver, take off the front panel. Do NOT over bend the

clips.

STEP 7:

Undo 4 T9 screws, and use flat screwdriver to withdraw the lower case.


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STEP 8:

Use flat screwdriver carefully prise the metal screen cover in the circuit board.

STEP 9:

Now this is what it is look like


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SOLDER THE COMPONENTS

Find the location to be work with, and solder the components.

Solder the parts according to following sketches.


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These are what they looks like after the parts are soldered to the PCB.


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INSERT THE WIRE TO CONNECTOR

PIN24 AUX Left Input

PIN25AUX Right Input

PIN18AUX Signal Ground

NOTE:

Do not connect PIN18 to vehicle ground.

Most cars already have these wires in the connector.

PIN25 PIN24

PIN18


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HOW TO INSERT THE CRAMPS TO QUADLOCK CONNECTOR

This is typical look of Quadlock connector (left)

Fully prise the purple cramp clips on both sides.


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Please make sure you know which pin to insert

before continue.

Fully insert the wires with female cramp into the

quadlock connector pin housing, then refit the

purple cramp clips to the quadlock connector.


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YOU TAKE YOUR OWN RISKS FOR THIS MODIFICATION! THIS IS ONLY A GUIDE.

YYSNET MAR 2012

WIRING DIAGRAM

L R N

OR:

1824

25


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GUIDE.

YYSNET MAR 2012

You could place your input socket like this (Red cycle):

Enjoy!

yysnet

Modification Guide CD70 NAVI

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