Logic Board - Macintosh SE Reloaded

[JDW]

@JdM74 , I will read and respond to PMs tomorrow because it's but a long and tiring day. But before I go to bed, I just want to say...

SE Schematics (Apple and Bomarc) are downloadable here:

https://macintoshgarden.org/apps/macintosh-se-schematics-repair

The section showing J16 (RAM size selection jumper) is this:

 

[JdM74]

Finally got to testing things out. My initial tests were just focused on the jumpers, which appeared to have continuity as expected.
In a conversation with @JDW, I got a little more direction and did some further testing. The results were:

When testing, I did it in either direction, using the red probe on the resistor and then the black--
• Touching either probe to the left side of R35 and on the 1M pin, got a beep
• Touching either probe to the left side of R36 and on the 2/4M pin, got a beep
• As expected, the center pin did nothing.

@callanbrown You indicate that your system crashed upon startup. Was this a bomb when software started to load or a Sad Mac? If it was a Sad Mac, what was the error code thrown? That definitely would be useful to try and help isolate the possible problem.