question about poe 54gl v1.1

Discussion in 'Cisco/Linksys Wireless Routers' started by jca, Jan 6, 2012.

  1. jca

    jca Networkin' Nut Member

    hello to all from spain

    i followed a howto about apply POE to wrt54gl , i soldered on wan pins :
    -Pin 4 & 5 - DC Positive (Blue and Striped Blue)
    - Pin 7 & 8 - DC Negative (Brown and Striped Brown)

    to both pins vdc and gnd on the other side like this picture POE Hack/large/poehack 043.jpg. also i put a diode for reverse polarisations.

    then i used a poe injector from tp-link , after connecting to router , i checked voltages on both cables , all ok. then i connected to the router and everithing is ok , all correct. but unknown component smells like hot , , as time passes cpu is more warm , tx wifi is at 28 mw , and finally i disconected from the supply , the component is a transistor called U8.

    what do you think maybe happening , i checked soldering points , and i isolated diode with a cover, but i dont want to keep it running more time with this anomaly....

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