Trouble shooting 90
DX-KIT Controller No Power
(LED on the Main PCB is OFF)
OK
OK
OK
OK
OPEN
Forecast of Cause :
1. Power supply failure
2. DX-Kit Electrical compornent defective
Check Point 1 : Power supply
Check Point 2 : FUSE F101 on the Power supply PCB
Before replacing the burnt FUSE,
make sure that the terminal between
L - N - E are not short-circuit.
Is not the breaker down?
Instant drop ---------------------- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line
(Neon bulb or electric equipment that may cause harmonic wave).
Check the complete insulation of grounding.
Disconnect the CN 102 on the Power supply PCB.
Check voltage CN102 output voltage
Pin No.1 - Pin No.6 : DC12V
Pin No.2 - Pin No.6 : DC 5V
04-99
NG
Replace the Power supply PCB
Check Point 3 : Output voltage on the power supply PCB
Disconnect the CN 801, and the power input connectors for actuators
(EEV, Sensor, Relay PCB.)
Check voltage CN801 output voltage
Pin No.1 - Pin No.2 : DC12V
NG
Replace the Main PCB
Check Point 4 : Output voltage on the main PCB
Disconnect the power input connectors for actuators
(EEV, Sensor, Relay PCB.)
And check the short circuit of each actuators.
NG
Replace the actuators which has the
Short-circuit conditions
Check Point 5 : Check the condition of short-circuit
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