Seared my circuit while checking voltage
You can tape the exposed probe metal surfaces with Heatshink or tape so only the tips are exposed.  This reduces the risk of unintended shorts, with high voltage exposed leads on parts &lt; 200V.  It's pretty easy to have these accidents. Now you are wiser. If there's no space to probe, don't. 

They do have tiny spring clip cables for grabbing dual inline chip pins which are available in some places like Electronic part stores, which is also an option, then power up after connection.