Re: Speakers on my 90CS Quattro.

[Chris Newbold <cnewbold@transarc.com>]

Steven Chan wrote:

> My '93 90CS Quattro have a CD receiver (Alpine) installed. When I turned
> on the CD or radio, it will released a "Pop" sound even it was set to
> "0" volume when I turned on the receiver. I heard someone told me that
> there is a Ampifier inside the speaker and that is the reason why
> released "pop" sound. Does anyone knew how to solve it?

I assume you've still got the OEM rear speakers... These do contain their
own amplifiers, which have a tendency to short themselves out. The problem
seems to be that the PCB is too close to the metal enclosure, and after
enough bumping around some of the pins touch the enclosure.

The fix is fairly straight forward: remove the speaker, disassemble, trim
leads on bottom of PCB, make cardboard insert to insulate PCB from enclosure,
reassemble.

That's the 20,000ft overview. You might want to check out the 12v pages,
http://www.itc.nu/12v, and see if there is a detailed write-up of the
procedure there...

> Also, is the Alpine receiver supposed to start from volume "0" whenever

No idea.

-Chris
1993 90CS