Yamaha M4 troubleshoot help

[avionic]

nOOb question:

Should I have speakers A or B selected when firing up a dim bulb test, or for doing SM adjustments?

It’s not hooked up to anything else.

No not necessary. No speakers, no inputs.

 

[Komodo]

BTW - P A S S E D dim bulb. Thank you very much for your guidance. I’m letting it settle in as I go through SM adjust. I was just searching for your illustrated guide, you may have aready linked to it in this thread.

 

[Komodo]

BTW - if you try to set the PSV with the bulb still inline, you can only get to 60 ha ha.

Everything is setup. I can see trimmers in my future, also have some plans for the speaker jacks.

 

[avionic]

Vampirewire

 

[mgkfifty]

M4 binding posts, very nice, love to have those on mine. May be above my pay grade.