10-9) Trouble with Fluorescent Lamp and Repair method
1. Before repair, at first check whether the power of the consent is normal or whether the power
cord is normally connected.
2. Handle with care since High Voltage is supplied to the inverter circuit and high voltage
and high frequency are discharged.
Information
Fluorescent lamp turns ON/OFF by supplying power to INVERTER through ON/OFF
of R-Room Door S/W. Since the replaced lamp does not turn on immediately, open and close
the R-Room Door repeatedly.
Fluorescent lamp is connected to heater. This heater interlocks with R-FAN.
This heater is for improving the trouble of turn-on under the cold condition and there may be
trouble with the lamp caused by the heater. So, it is better to check the snapping of the heater, if necessary.
Voltage is
supplied to the input of
the inverter?
Check of R-DOOR
S/W and L/W
Lamp itself is normal?
Replacement of INVETER PCB
N
Replacement of the lamp
N
Y
Y
Rated voltage?
R-Room Door is open?
START
Open R-Room
N
Y
Pre-Check
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