I have seq v4 with wilba CS working fine.
I add the line driver + aout ng modules connected by scheme for seq users from www.ucapps.de/mbhp_line_driver.html (j8/9 of core to j1 cs; j2 to j2 transmiter; j19 of core to j19 transmiter etc.)
and in result have crazy seq.(screenshot) and MC3486, MC3487 seems warm.
Check for shorts on line driver pcbs- all fine. Pinout seems normal. Some result without any connection fron transmiter. AOUT seems work fine.
Tell me please where to look for error. Thank you.
Solved. Short under the IC socket. Thank you for attention.