On Wed, 23 Jun 2010, 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?
Is that the same warning as the 5150 power supply?
If so, how long did THAT delay you?
Can you get a cheap one from a wrecking yard? Or get the dealer service
manager to save a bad one for you if/when they have to replace one?
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?
But the 'universal' solder has lead in it :-)
I would assume that for many years, they will be coming out with new
compositions of the lead-free solder. Maybe SOMEDAY they will succeed in
coming up with one comparable to the stuff with lead in it.
Right now, they seem to still be trying to come up with one that is
marginally satisfactory.
It will take a LOT of practice before I could solder SMT with lead-free
solder. I should probably start that practicing, but there are higher
priority tasks in the queue.
--
Grumpy Ol' Fred cisin at
xenosoft.com