SC-805 Hack For iPod/ iPhone

[Rachony]

Originally Posted by leowyatt

Seems someone already has

Sorry to jump in mid thread but the pics on this link do not work and just show as blue ?. Is it me or my computer?

[960kg]

Originally Posted by Rachony

Sorry to jump in mid thread but the pics on this link do not work and just show as blue ?. Is it me or my computer?

Try this and see what happens otherwise it is your end.

[scutyde]

Hi

how are the capaciters soldered? Can you post a schematic please?

Regards
Cristian

[960kg]

Originally Posted by scutyde

Hi

how are the capaciters soldered? Can you post a schematic please?

Regards
Cristian

Each single wire is soldered to a stereo channel left or right.

So therefore the capacitor is soldered into the Positive and Negative of each channel either way around it doesn`t matter with this type, and the two earth wires just goes past the capacitor as in the pic. from the female socket to the chassis unit.

[scutyde]

A friend of mine has the SC 805 with the Yatour MP3 Interface which also has an Headphone input. Problem is when the Iphone is connected to it and also charged via cig light adapter he has this annoying whining from the alternator.

When he unplugs it from the Cig ligther the whinning stops. I fitted an filter before the cig lighter adapter however no change...

Will the whinning stilll be present with this "hack"?

Regards
Cristian

[cornerstone]

I have never had any whinning at all even when i have the phone pluged in and on charge.

[TurboZutek]

Originally Posted by scutyde

When he unplugs it from the Cig ligther the whinning stops. I fitted an filter before the cig lighter adapter however no change...

Will the whinning stilll be present with this "hack"?

This (or something similar) should remove the whine:

http://www.ebay.co.uk/itm/3-5mm-Earp...item41560179c6

It's a ground loop isolator and it works in the way I explained above (1:1 transformers).

The whine occurs because the difference in ground potential between the phone and the head unit is enough to generate a small current which shows up as interference in the audio. In extreme cases this current can also damage the amplifier of the device that's driving the stereo, if its design isn't good.

Best of luck!

Chris...

[scutyde]

Thanks for the replies

When i fitted the cig lighter power adapter I inserted something like this before the adapter.

http://www.ebay.co.uk/itm/-/26070137...e=STRK:MESE:IT

The whining is still there actually no change with or without it...

[mikealder]

You need the ground loop issolator rather than something in the power line - Mike

[960kg]

Originally Posted by scutyde

Thanks for the replies

When i fitted the cig lighter power adapter I inserted something like this before the adapter.

http://www.ebay.co.uk/itm/-/26070137...e=STRK:MESE:IT

The whining is still there actually no change with or without it...

You may find there is a faulty part in the alternator giving you the whine as i have tried mine today after some time of not using it and it works ok no problem when charging or not, no difference.

Older alternators had a capacitor bolted onto a mounting bolt but nowadays it is all incorporated.

The capacitors used because of the correct value will safeguard any device using this hack.