Template:Manual:Lingo4 Operation

• Power Up: The first time the Lingo 4 starts up it will use a default value to set the initial motor speed at 33 rpm. Calibration is then performed every few rotations, allowing the platter speed to settle between adjustments. The final calibrated speed value for that deck is then saved in memory. This process usually takes around a minute. On subsequent power ups the most recently generated calibrated speed setting is recalled from memory and used as a starting point. Getting up to calibrated speed at 33 rpm from stationary then usually takes about half a minute (some time to reach speed, then a few calibration cycles to check and refine the speed). The results of this initial calibration cycle are then stored to memory.

• Startup Mode: On startup the deck only ever spins at 33 rpm until it gets up to this speed, which usually takes about half a minute. Only after this will it attempt to adjust the speed if 45 rpm has been selected. Even if 45 rpm has been selected during the startup period and the LED has gone green, it won’t actually try to change the speed to 45 rpm until 33 rpm has been achieved.

• Operational Mode: If the platter is stopped or slowed down during operation (something which should not be done), the Lingo 4 will always revert to 33 rpm mode to recalibrate. Only after it has achieved 33 rpm will it switch back to 45 rpm mode if applicable. The LED does not turn red to indicate that it has switched to the 33 rpm calibration cycle if the LP12 is running at 45 rpm.

• Changing Speed: If the LP12 switch is used to change the speed between 33 rpm and 45 rpm, the speed change happens within a few seconds; the calibration is what takes the extra time. If it appears to be taking longer than expected, it’s possible that the deck is calibrating at 33 rpm before attempting to change to 45 rpm.

• LED Behaviour: A green LED indicates that 33 rpm mode has been selected. A red LED indicates that 45 rpm mode has been selected. The LED on the Lingo 4 only dims when it’s at the correct calibrated speed. It will go bright again if it detects that the platter is no longer turning at the correct speed.