Tom, Thank you for the tip. What do you think the chances are of finding a tech able to go over the board at some reasonable cost? It is over my head here in Mazatlan, my old eyes and shaky hands y'know.
Tony
--- In diesel_mercedes@yahoogroups.com, audiolaw@... wrote:
>
> Tony,
>
> this type of circuit card is "wave soldered", in a machine that takes
> the card, populated with all the parts, and runs it into a machine holding
> the card above a pool of molten solder. the machine has a ram at one end
> of the pool that generates a wave on the solder surface, high enough to wash
> the non-component side of the board. Where the board has component leads
> coming through solder pads, the solder adheres and makes (hopefully) solid
> connections.
>
> Such connections are quite fine, thin layers of solder. Therefore,
> regular automobile vibrations can cause them to flex and break over time.
> But the breaks can be very fine and invisible to most eyes.
>
> The solution to these breaks is to take a fine soldering iron and
> rewet EACH solder point on the board (being careful to NOT short between any
> traces!!). Almost by definition, the process of rewetting the connections
> will lead you to add more solder than was originally there, thereby reducing
> the possibility of repeated cracks (but also increasing the possibility of
> shorts across adjacent traces - IF you aren't careful).
>
> Tom
>
>
>
> In a message dated 2/2/2012 3:44:06 P.M. Pacific Standard Time,
> aldridgetony97@... writes:
>
>
>
>
> I think Tom is right, that is the cruise module, I swapped mine for a PAP
> one and cruise worked better for a while. But it just failed again. I have
> the old module apart, and cannot see any obvious damage, someone said to
> solder the copper bar connections, would that help?
> Cruise is important to me because of back issues.
> Tony
>
> --- In _diesel_mercedes@yahoogroups.com_
> (mailto:diesel_mercedes@yahoogroups.com) , audiolaw@ wrote:
> >
> > I believe that that is the infamous cruise control amplifier module that
> > ALWAYS fails.
> >
> > Doesn't have anything to do with horn, lights, etc.
> >
> > Tom
> >
> >
> >
> >
> > In a message dated 2/2/2012 5:34:21 A.M. Pacific Standard Time,
> > alstheone@ writes:
> >
> > It's the small aluminum box with a tab on the top screwed to a bracket
> > just to the right of the parking brake mount under the dash. It has 10
> pins
> > for the plug on the bottom. the P/N 001 545 52 32 is etched into the
> face.
> >
>
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