Fluke 5502A

[Ugur]

Hello Guys,
I need your experiences regarding the faulty Fluke 5502A.
The device completes the diagnostic test without any problems. But there is a problem with the current outputs. There is no problem up to 330mA, but after 330mA level I get meaningless outputs. For example, at DC 500mA, I get a value like -100mA.
In AC, it gives almost half of the set value.
Maybe it can give you an idea, A7 these parts were defective and I replaced them with new ones.
R59:100 ohms
Q10:MJE15029 (I installed MJE15031 instead)
Q21:MPS6560
R69-R71: 10 ohms. It was a little burnt on top, but it showed the correct value. I replaced it with a new one.
U47:DG444
K13: Relay