I just found an on-camera light that has been broken for some time. Having some down time I decided to take it apart and see if I could fix it.
Now this thing is designed for smaller field cameras....we used it on a Sony VX-2100. Simple design...plug a battery into the back, flip the switch one way one light bulb came on, flip it the other way, two. Imagine my surprise when I saw the circuit board that was needed to run the thing! Capacitors, resistors, a few chips...needless to say it isn't fixed. Our engineer wants to keep it for spare parts. Well at least the light bulbs should be salvageable.
I can't imagine why it would take this much effort to simply turn on a light bulb.