I have a LOTR LE (uses the SAM board as Whitestar was not available) with a failed pop bumper which does not fire in test mode. I checked the ohms on the coil and it seems good so probably a bad transistor. 2 questions:
1) Testing - Chas from Stern support suggested shorting the transistor to ground to determine that the transistor is the problem. Do you guys test this way? What is the safest way to test this? What about measuring in circuit?
2) This will be my first component replacement on a board. It seems pretty easy since it is a through component. Any things to be particularly careful for?