Manual:Wireless card diagnostics: Difference between revisions

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== General information ==
If your wireless is '''not''' detected in RouterOS, but is correctly installed into the miniPCI slot, consider one of the following possibilities:
* Internal chip communication problems due to PCB metallization or packaging. ''Card is cold''. Manufacturer provides warranty repair.
* EEPROM problems due to programming of card. ''Card is cold''. Manufacturer provides warranty repair.
It's also possible that the problem is not covered by warranty:
* AR5414 or AR9220 chip is damaged and ''card is very hot''. In this case, card is out of warranty
* Physical damage, rust, or PCB trace damage. ''Card is cold''. Card is out of warranty.


== R52 and R52H ESD damage ==  
== R52 and R52H ESD damage ==  

Revision as of 10:10, 29 April 2010

R52 and R52H ESD damage

To test if your R52 or R52H card is malfunctioning due to lightning/storm electrostatic damage, use a multimeter:


Damaged card:

Storm1.jpg


Normal card:

Storm2.jpg

Testing area close-up:

Storm3.jpg


DC shorted antennas

Also make sure that your antenna is DC shorted:

DC shorted antenna. This antenna doesn't need a Coax lightning arrestor:

DC shorted antenna

NOT DC shorted antenna. This antenna needs a Coax lightning arrestor to avoid sudden wireless card damage. Note the OL (Overload) in the multimeter:

DC NOT shorted antenna