Hmm... Check the BC transistors Vbe first. If any abnormal like much different than 0.5V-0.7V should be dead.
BC550C Vbe 0,24V
Then check MOSFETS Vgs (pins 1,3 at 3-4V normal).
Q301 7,03V & Q306 0,8V
Q301 7,03V & Q306 0,8V
Q301 weird. Replace first of all. Because its located before them in circuit. Maybe its the one starving them.
No way, they differ a lot.Salas,
Is there a way a BiB pcb to be modified to Ultra BIB
Hmm... Check the BC transistors Vbe first. If any abnormal like much different than 0.5V-0.7V should be dead.
0.4V
Then check MOSFETS Vgs (pins 1,3 at 3-4V normal).
7V
And how much Vgs on Q306 again
It's jumping between 0.7-0.8V
0.465V across 0.47R = 0.989A
Is that enough for the application?
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