T
roubleshooting 3
1. Safety Caution
W
ARNING
Be sure to turn off all power supplies or disconnect all wires to avoid electric shock.
While checking indoor/outdoor PCB, please equip oneself with antistatic gloves or wrist
strap to avoid damage to the board.
W
ARNING
Electricity remains in capacitors even when the power supply is off.
Ensure the capacitors are fully discharged before troubleshooting.
T
est the voltage between P and N on back of the main PCB with multimeter. If the voltage is lower than 36V, the
capacitors are fully discharged.
Note: This pictur
e is for reference only. Actual appearance may vary.