23 Jun
2010
23 Jun
'10
10:40 a.m.
On 22 Jun 2010 at 19:33, Tony Duell wrote:
I see...
The workshop manual for our car specifically says that the insturmnet
cluster must not be taken apart. It doesn't go into more details, but as
it contains the immobiliser microcontroller and the odometer, there may
well be security features (like it'll erase memory if you open it up).
It's a VAG-group car, does anyone have any ideas?
A couple of metalurgists have said to me that
lead was originally used
in solder for good reasons... I am not at all convinced that the
lead-free alternatives are as good.
Heh, after I learned that lead-free solder was used by Bosch in my
Volvo brick, mysterious electrical problems got a lot easier to
solve. All of the relays have been resoldered with leaded solder.
The next project is the instrument cluster. Something about the lead- free stuff used not holding up well to years of
vibration.
The lead-free soldered I've seen certainly seem more brittle..
A related question : Therre seem to be several types of lead-free solder,
and manufacturers service manuals tell you to use a particular one (often
to be bought from that manufacturer). Which means (to avoid
contamination), I would need a dozen of more reels of solder and
soldering iron tips. And what do I do about stuff I can't get the service
manual for, or where said manual is a boardswapper guide. When it was all
laed/tin solder it was easy.
Is there a 'universal' lead-free solder that I can sensibly use to rework
anything modern?
-tony