Yes the U7B is the 3.3v regulator,the input is feed with 12v not 5v.But i think the regulator ok,as i mentioned when i remove the 0-ohm resistor...
Hello. I don't have Q1105,this is another topology...what else i look?
Hello. I have a clone 800SE,i have issue with the 3.3V on board supply is too high measuring 4.9V on the P1100 pin4,the resistance measured 990...