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Re: Lousy AM band reception
At 7:37 PM -0400 10/29/99, Ryan Gemmill wrote:
>The speakers are definetily there.
Is it a 200q20v sedan? Then the only speaker that will be in the
dash is -one- speaker, and it's for the phone only. It doesn't do
anything else. I think it's passenger side, I don't remember. My
car has the "delete phone" option, so there is nothing there at all.
>Where did you get the idea that a rear speaker wasn't working? They both
>work fine. Thanks.
They have a -very- high failure rate, and the first thing that
usually happens in the failure "cycle" is one simply goes quiet; this
isn't the easiest thing in the world to pick up on if you never ride
back there :)
>
> > On the reception problem, I did post my experience before, and the follow
>on
> > about making sure that there is power to the antenna amp was an excellent
> > one. You can easily teel whether the problem is in the cable or the amp
>by
Hmm. I just looked in my Bently...here's what it says, in case you
don't have one.
The rear antenna is the rear window defroster wiring. There's a
control unit on the passenger side(I think; they say "right".) The
top connector is the power supply from the radio, and looks like
plastic connector. The bottom connector, which has a grommet and
looks rubberized, is the power supply for the heating element. The
test instructions say to check fuse S16 first, remove both D pillar
trim panels, check connectors. Switch on radio and connect meter
between the connector for the power to the amp and ground, should get
battery voltage, otherwise, "repair broken wiring".
There are a couple other tests, one involves testing how much juice
the amp is drawing through the power connection to the radio. Spec
is between 30 and 50ma. They also say to test current draw through
the heater wires with the defroster switch turned on; spec is
13-13.5A; less probably indicates broken wires. Unfortunately, they
only list extensive diagnostics for the rear; for the front, it's
simply test-for-battery-voltage at the power connector, and if you
get it, replace the front amp.
Brett
----
Brett Dikeman
Artel Software 617-451-9900
381 Congress Street 617-451-9916(fax)
Boston, MA 02210 http://www.borisfx.com