1. Open JP1
2. Turn power on and wait for 1 minute
3. Set P202 to its mid-position
4. Monitor TP0 and TP90 on a dual-channel scope (set both traces to the same centre-point)
5. The frequency should be ~10Hz
6. Adjust P203 until the signal swings around 0.0V
7. Monitor TP90
8. Adjust P201 until the signal swings around 0.0V
9. Close JP1
10. Using [COARSE] and [FINE] set the frequency of the signals to 100Hz
11. Adjust P202 so that both signals have the same pk-pk value
12. Adjust P204 for an output level of 5Vpk-pk