i do not work for TKE and have never had a problem repairing at Tac 20 whether it be a LON problem or whatever. Schindler uses LON on their 321's and 330's.
If you've got parts, diagnostics, and literature, everythings fixable.
Problems..
Parts: Non-OEMs get bent over, price wise, leaves little room for profit or none at all, if you have to replace something.
Diagnostics: Have moved past the point of simple ASCII in and ASCII out and have moved to network protocol, making diagnostices that much more difficult to reverse engineer. And no funny stuff on the reverse engineering because it's guaranteed you will face a legal challenge upon release to the public
Literature: This used to be a gray area, but over the years has been determined that the original OEM holds the copyright, so anybody with illegal literature in their possession has broken copyright laws and liable as well. Leaves you with the choice of going out and breaking elevators, and recording your own findings, thereby creating your own literature.
Nobody but those with the deepest pockets can take up the endeavors listed above. This means OEMS battling OEMS. The days of the large nationwide independents is long gone.
