Quick test to find a failed transistor

I've been trying to fix my home intercom system.  It fails by blowing fuses so I figured one or more components had failed short.  Boy was I wrong lots of shorted components including several transistors. 

It's pretty easy to test a bipolar transistor with a DVM in diode test mode.  You don't need to know whether its NPN or PNP so it's pretty quick.

Quick test to see if a transistor is bad. This works for most NPN and PNP transistors that have failed with a short.