OK, I need to put another mouser order together, for at a minimum new trim pots, and then maybe the rest of the caps.
I have the replacements for Q1,2,3,4,5,6 already as well as some protection board parts C6, Q7, D8 and the 1n4007 to add across pins 9 and 10.
So far all I have done is released the protection board from it's clips in prep to remove and replace the above. Reading about not removing the wires from the pins makes me think that the amp board, awh-031A cannot be moved such to make it accessible, there just isn't enough available slack from the power outputs transistors. So I need to study that a little more.
I did not test the unit by pulling the pre/main but I did switch to another pair of small woofer speakers with inline .25A fuses. I did not see these woofers moving like the Minimus 7's did?? Perhaps the rubber surrounds of the Min 7's accentuated issues?
The points you added re voltages are simply numbers on the awr-055 schematic; I wrote the values next to the numbers on the schematic.
As I already plan on replacing the ticking timebomb parts, I will not be turning the unit on again until I have done the replacements. I need to set up a new Ayoue desoldering gun I bought so I can proceed, once I resolve removing the amp board!
Note: I seem to recall that before checking power points and across the speaker connection that the amp should warm up for maybe 30 minutes? Well, this hasn't been powered on for 7-8 months. When I did turn it on, with a set of speakers for a load, I could hear the relay? clicking on and off for maybe 4 minutes before it stopped. The right channel fuse was shot, so I replaced it, and powered up again, and let it run FM for about 20 minutes before checking dcv across the speaker connections, which gave me a reading of .004 and .005?
Thanks Mark, once again you are a fountain of knowledge and present it in an understanding manner!
