how to fix your HUD!

[rongfk]

browsing threw the web, i found this and thought you guy's could use the info. i myself do not own a hud equipped car, so it doesn't really benefit me, this might even be old news to you duds, but never the less here you go....
--ron.


After searching thru a bunch of "HUD FIX" posts I found that there really wasn't any useful information in these other than hit the dash, heat the hud with a blow dryer etc. Since mounting a blow dryer in my car wasn't an option, time for another fix:

The root of the problem is the connections to the ceramic boards on the HUD unit. The boards are not soldered well and after years of hard suspensions, hot and cold weather time has taken it's toll on these connections. The following pic illustrates where most of the problems lie. The faulty solder joint is on pin #2 from left to right in the picture below. Please note that the HUD is upside-down for this pic. The board that needs re-connecting is the larger of the 2 ceramic boards that are next to each other.

If you are re-soldering this you must have a very fine tip soldering iron and plenty of experience. You may want to hit the other connections on these boards while you are in there just for good measure.
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Most of the problems I have ran into with these is them working under certain hot / cold conditions and then eventually turning off completely. Re-soldering the ceramic boards connectors is always first suspect. There are 3 total ceramic surface mount boards on the HUD units.