Hi Peter, if this resistor is open circuit then the only way to know what value it was is to contact Aastra or ... If he resistor was in series on the AC side of the bridge rectifier it probable acts a current regulating device in which case the bridge recifier could have sorted and blown the resister (like a fuse) so before you change it check the BR. The resistor value itself can be approximated by using ohms law: V=I/R etc.
If the device power supply is 5v at 330ma (just guessing) then the device has an internal resistance of: 5v x 0.3amps = 15 ohms Therefore start at that value and reduce it until the resistor gets slightly warm over a 5 minute period Good luck Henry L.Coleman [VoIP-PBX.ca] ------------------------------------------------- > Peter MacFarlane< > Hi All: > > I have a client's 9112i that has apparently burned its power supply > out. There is a nice crispy resistor just before the bridge rectifier > on the mainboard. Anyone ever replace this resistor? Anyone know what > size it is (was)? I think these models have an overheating problem. > I'm just hoping my lasts for a while. > > Peter M. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
