Craftsman nicad battery charger

Thread Starter

woody022

Joined Feb 9, 2019
5
Hello and thank you for the opportunity to post to the forum. I have a Craftsman 1425301 battery charger that is no longer charging batteries for my cordless drill. I took it upon myself to troubleshoot the unit to repair it. I tested the output voltage across the positive and negative pins with my digital multimeter. When I tested across the pins with the meter set on DC voltage I got a reading of 108.6 volts DC. So out of curiousity I set the meter to read AC voltage across the same pins and got a reading of 46.8 volts AC. Rather odd I would say. I am kind of a newbie at troubleshooting electronic circuits. Can someone reply with some insight as to the reason for the unusual readings? Thank you in advance for any assistance offered. I am attaching a photo of the circuit board for the charger.

Mod: copied your image across.E


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gramps

Joined Dec 8, 2014
76
It appears that there has been some overheating in the lower right of the PCB. That's where I'd start looking. What, if anything is on the under side of the board?
 

Thread Starter

woody022

Joined Feb 9, 2019
5

It appears that there has been some overheating in the lower right of the PCB. That's where I'd start looking. What, if anything is on the under side of the board?
I will post a photo of the underside of the PCB as soon as I can thank you.
 
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