I have found this "UA43 1AWC" who is dead.. but I cannot find any information for a replacement, or the component in the parts list.
The component is at location IC1
Can anyone help me in what component that i can use as an replacement?
Looking at the schematic above, it looks like IC1 is the Zener diode on the left side, 2/3rds of the way down.
The schematic is a little hard to read, so you might want to confirm these connections on the PCB.
- One trace from IC1 should go to R18 and R20.
- Another trace from IC1 should go to R22(?).
- The third trace from IC1 should go to R21 and C12.
I only see one Zener diode on the parts list, so that looks like a good place to start
or the schematic labels IC1 as a TL431.
A TL431 is an adjustable Zener diode also known as a
programmable shunt regulator.
Scott