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[Tafty]

I have a decent 'how to' regarding the connection of a 3.5mm Jack socket to a CDR 2005 and am trying in earnest to find out (without taking my CCR 2006 out) if the circuit board layout is the same for the CCR 2006 internal board. Are they both Phillips? Any help much appreciated.

Cheers

[Marks DTM Calib]

They are pretty different, the CDR2006 main board is based around a cassette setup.

[Tafty]

Cheers Marks DTM,

would anyone have a link to getting the circuit diagrams for the 2006 I wonder?

[Marks DTM Calib]

There are some PCB shots here:

http://www.omegaowners.com/forum/YaBB.pl?num=1174515451

Possibly has the same audio switch chip in it though.

Where are the details you have?

[Tafty]

There are some PCB shots here:

http://www.omegaowners.com/forum/YaBB.pl?num=1174515451

Possibly has the same audio switch chip in it though.

Where are the details you have?

It's a 'How To' from another forum - which I no longer have the link to so wary about posting as not sure of the protocol of posting someone elses work. I can email people though if they want it - just send me a pm

cheers

nb thanks for the link to Kevin Woods mod - need to read it first though

 

[Tafty]

Have an update for the CDR 2005 ipod jack socket - found here:

http://www.css-haupt.de/vectra/english.html

NB Mark thanks for the link to Kevins - can now look at how to manipulate the audio chip.

 

[Kevin Wood]

I haven't tried this, but I suspect there may be a better way to do this.

I suspect the TDA7313 also switches the mono input from a car kit in, when the "mute" line is active, so you could possibly supply a stereo input to this pair of pins on the chip and switch it with the mute line, which means you don't need a CD of silence.

As I say, haven't tried it yet but will do one day.

Kevin

[Dave DND]

I haven't tried this, but I suspect there may be a better way to do this.

We get quite a few repairs in from people who have tried this and similar, every owners club has someone posting a similar "get around"

The headphone outputs of the MP3 player are of too high a power to do this, and can overload the head unit circuitry quite easily. Also, it was found that when reverting back to CD, that the jack socket now acted as an aerial and introduced considerable unwanted interference.

 

[Kevin Wood]

I haven't tried this, but I suspect there may be a better way to do this.

We get quite a few repairs in from people who have tried this and similar, every owners club has someone posting a similar "get around"

The headphone outputs of the MP3 player are of too high a power to do this, and can overload the head unit circuitry quite easily. Also, it was found that when reverting back to CD, that the jack socket now acted as an aerial and introduced considerable unwanted interference.

 

Agreed. "How To from another forum" results in the external input fighting the output from the CD player so it's a total bodge.

In addition, as said, the levels would probably require some attenuation as the level at a headphone output is likely too high and the impedance too low.

Kevin

[Dave DND]

Agreed. "How To from another forum" results in the external input fighting the output from the CD player so it's a total bodge.

In addition, as said, the levels would probably require some attenuation as the level at a headphone output is likely too high and the impedance too low.

Kevin

Sadly, nobody will ever listen to our warnings about this bodge and will carry on regardless - Oh well, more work for our repair centre I guess - I just wish people would listen to the warnings rather than to the rants of the bodgit brigade.

 

[Tafty]

Thanks chaps, all advice very much appreciated.

Will probably look to upgrade the CCR 2006 to a DVD install type thing if SWIMBO lets me

cheers

[Dave DND]

Good idea -  

[Marks DTM Calib]

I haven't tried this, but I suspect there may be a better way to do this.

I suspect the TDA7313 also switches the mono input from a car kit in, when the "mute" line is active, so you could possibly supply a stereo input to this pair of pins on the chip and switch it with the mute line, which means you don't need a CD of silence.

As I say, haven't tried it yet but will do one day.

Kevin

yes Kevin, that would be a safe and snsible approach.

Need to do a trace through the scms to check which input is used (1, 2 or 3)

Was reading the datasheet on the STM site today.

[Dave DND]

Kevin Wood wrote on Today at 14:59:
I haven't tried this, but I suspect there may be a better way to do this.

I suspect the TDA7313 also switches the mono input from a car kit in, when the "mute" line is active, so you could possibly supply a stereo input to this pair of pins on the chip and switch it with the mute line, which means you don't need a CD of silence.

As I say, haven't tried it yet but will do one day.

Kevin


yes Kevin, that would be a safe and snsible approach.

Need to do a trace through the scms to check which input is used (1, 2 or 3)

Was reading the datasheet on the STM site today.

Can`t see why that wouldn`t work ?
In theory, seems quite a good idea   :-?

[Marks DTM Calib]

I was actually thinking about maybe modifying the aux feed pins (two off) on the ISO block to be two mono feeds plus pick up a screen local to them and then cap coupling plus shunt termination resistors before feeding into the switcher.

This should give an aux feed switchable externally and not require any extra loose wires outside of the unit.