This calibration sets the clock generator on the genlock module to 4.5Mhz.
Setting up the oscilloscope
Connect the scope channel 1 to 6G1 and ground the probe on 9G2. Set up channel 1 to DC coupled, 1V vertical divisions and 500ms horizontal divisions and measure frequency.
Adjust coil L5001 until the clock generator outputs 4.5MHz to 6G1 as shown in the following trace (note that it is not necessary to play a disc when performing this test, but the player should be left on for 5 minutes before performing calibration):