Re: Hanns g 28" Monitor Power Supply Question

I have the same problems with the identical PSU But From an viewsonic VX2835WM. I am wondering If anyone has the numbers or value/type of D601,D603, and D604?
The IC's are marked:
PRIMARY(HOT) SIDE
U201:LM393N
U102:L6598D
U202:LMC555
U101:L6562D
SECONDARY(COLD) SIDE
U801:LM324D
U501:3037CS
U601: DM0265R