One of the nation's largest manufacturer of sirens warning lights
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Small warning lights fault clearing process

Small warning lights fault clearing process
 
Symptom
Step one
Step Two
Step Three
Approach
Turn lights do not turn
Check whether the motor has a supply voltage
Is
To see if the rotation of the motor load
No
 
Replace the motor
Is
Turn lights stuck parts
In other turntable parts or apron
No
Check the power supply line to find breaker
 
 
Re-line
Turn light does not shine
Check the bulb is damaged
Is
Replacing the lamp
Is
Check whether there is power supply
Wick re-bonding poor contact bonding
No
Check the contact point is oxidized
No
 
Is
 
To the oxide layer
Small flashing lights do not flash
Check whether there is power supply
Is
Check the lamp is broken, blackened leak
Is
 
In other lamp parts
No
Check the high voltage across the capacitor voltage is " 300V
Is
In other lamp parts
No
After changing the content or high-voltage switching transistor does not change the PCB flash
No
 
 
 
 
Check the power supply line
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