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  1. BeeRT29

    LDK-100 PSU burnt resistor

    Good day, I have on board LDK-100 PSU then suddenly telephone connected are not working. Saw on the power supply darken resistor (R49) and zener diode (D19) . Can anybody tell me what is the reason for this to get burned? And what is the real resistance of R49 and how to know it zener diode is...

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