OK... this is a bit strange...
the SYNC SEP circuit has been altered. :O
https://i.imgur.com/wYtJAc5.jpg
clearly at one point, a resistor fried and was fixed, bit they never removed the burned one, SLOPPY!! ( Crappy soldering too )
BUT
https://i.imgur.com/KqSbiF6.jpg
SAMs shows a 82k to power and 18k pulldown.
but what is in there NOW is 820k and 1m :O
hmmm
leave as is? or put it like it says in the SAMs? :O