A fuse blown ? measure always first the mosfet irf740 if thats not shorted that could be the cause of the defect in case ? or some of the 4 primary bridge diodes replace 1n5408 or by299 presumably c32 its a blue or black high-voltage capacitor .i don,t know for sure but lies in the expectations this is a repair suggestion that could be to find in some popular Dewalt chargers , and do a error research proof allways over a 200w lamp thats in serial with the loader power cable if you make error research to find the part that caused the problem. then you will not blow up parts again if the cause is not find in priority , but a variac and oscilloscope can also be used.
SOURCE: Have just got the Dewalt DE9116 charger.Plugged it
that is normal it happens when u plugged and unpluged. after a second it should show no blinking. then when u insert the battery pack it would show the diagnostics. with the blinking pattern.
if you need the manual , you can get at www.dewalt.com or call us at 407 657 0474 and we can fax it to you.
SOURCE: I HAVE DEWALT CHARGER DE9116.ITS OUT PUT VOLTAGE
check output voltage on charger label most chargers are not regulated so if it says 18 volt output it may put out 24 volts but if its putting out 51 volts it may have a short batteries will get warm but not hot replace charger
SOURCE: I have a dewalt de9116 charger and when a battery
I have tried pulling out almost all the transistors and checking it individually but all of them is all right.
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