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crwdns2933797:0Rolandcrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Roland

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[title] Measure which of the IGBTs is faulty
-[* black] Measuring with a [product|IF145-035|multimeter|new_window=true] in the 'diode' mode revealed that the left IGBT (the GT60N321) had indeed given up the ghost: collector and emitter were diverted.
-[* black] To be sure that this was not a side effect of the surrounding electronics, I [product|IF145-018|desoldered|new_window=true] the IGBT pins from the PCB with a tin sucker, and then measured again. The IGBT was indeed found to be defective.
+[* black] Measuring with a [product|IF145-035|multimeter|new_window=true] in the 'diode' mode revealed that the left IGBT (the GT60N321) had indeed yielded its spirit: there was little resistance between collector and emitter.
+[* black] To be sure that this was not a side effect of the surrounding electronics, I [product|IF145-018|desoldered|new_window=true] the IGBT pins from the PCB using a desoldering pump, and then measured again. The IGBT was indeed found to be defective.