   LcdInit();
   delay(500);
 
+  AyRegister(AY_CH_A_AMPLITUDE, 3); // Full volume ch A
+  AyRegister(AY_CH_B_AMPLITUDE, 3); // Full volume ch B
+  AyRegister(AY_CH_C_AMPLITUDE, 3); // Full volume ch C
+
+  AyRegister(AY_CH_A_FINETUNE, 130);
+  AyRegister(AY_CH_A_COARSETUNE, 1);
+  AyRegister(AY_CH_B_FINETUNE, 120);
+  AyRegister(AY_CH_B_COARSETUNE, 1);
+  AyRegister(AY_CH_C_FINETUNE, 110);
+  AyRegister(AY_CH_C_COARSETUNE, 1);
+
+
   LcdXY(0,0);LcdString("Mount=");
   res=pf_mount(&fs);
   LcdCharacter(48+res);

  // PC6 o AY_RESET#   Digital Pin 5 (PWM)
  // PC7 o AY_CLK      Digital Pin 13 (PWM)
  DDRC=0x00 | (1<<6) | (1<<7);
  PORTC=0x00;  

  // PD0 o AY_Data0    Digital pin 3 (SCL)(PWM)
  // PD1 o AY_Data1    Digital pin 2 (SDA)



  DEBUGLED_OFF;
  for (;;) {
      delay(150);
      AyRegister(AY_CH_A_FINETUNE, rand()&0xFF);
//      AyRegister(AY_CH_A_COARSETUNE, 1);
  }
}
