Is the little center button pressed(red light), the one below the start and select buttons?
Input1 = map(ps2x.Analog(PSS_LY), 0, 255, 1000, 2000);
//Signal1.writeMicroseconds(Input1);
Serial.print (Input1);Input1 = map(ps2x.Analog(PSS_LX), 0, 255, 1000, 2000);
// Signal2.writeMicroseconds(Input1);
Serial.print (Input2);
delay(1000);
You should really add a comma to separate them, like so.
Serial.print(Input1); Serial.print(", "); Serial.print(Input2); // I wrote it like this so you can see what I'm trying to do.
Output: yyyy, xxxx