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Powerdsine ups indicating inverter fault

How can a powerdsine ups indicating inverter fault be rectified.

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  • aboga007 Sep 30, 2008

    I have a ups powerware 9120 that shows DC BUS FAULT , I chaged the capacitor`s but when I turn on it , the fuse F1 10 A was damaged . there is a short circuit in the mainboard ups (output) but I donĀ“t know where is ?

    please help me

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A "zapping noise" usually indicates a problem in the high voltage circuit. If it's an inverter oven, it should have provided you with a fault code. If a non-inverter, the most likely causes are a shorted high voltage rectifier or bad magnetron. But there are many other possible causes.

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The inverter turns on and fans run for approximately 5 seconds and quit and the yellow led near the switch stays on but no115 volts AC output however the 5 volt DC works, any suggestions?


well the yellow light indicates a fault, the 5 volt USB is independent of the invert-er function, you kneed your unit serviced or possibly you have a low voltage cutout or high voltage protect ,check you manual for led fault indicator descriptions, battery voltages should be between 10.9 volts and 13.8 volts this can cause a fault if outside this range.
best regards Falco

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Vertical line


Hello,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

I hope that this will help to rectify the problem, do take care when handling the television...

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Red line across the top of the screen. bulb was just replaced


HELLO,

IF YOU HAVE A SOLID RED LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER


I HOPE THIS WILL HELP OUT IN RECTIFYING THE FAULT AND DO TAKE CARE IN SOLVING THE PROBLEM , BECAUSE THE TELEVISION CONTAINS HIGH VOLTAGE....

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Ive got a line down the left hand side of the screen when the tv is turned on the model number is panasonic viera tx-p42v20b


HI,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

GOOD LUCK IN RECTIFYING THE FAULT, THANKS

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Dir,sir my name is elsayed khatab working in power station my work depend on ups model ''400-cyberexwave'' but i have a problem when loading ups by select position bypass ,when i loading rectifier from...


I asked some clarification questions, but received no answer.

Because I see that your question is still standing, I will try to help you, but I am not sure, because I did not have your answers.

Your inverter I think is not CyberPower, but Thomas & Betts.
Your UPS has internal battery, which depends upon the type of the UPS.

If your battery is 270 V DC (which means 20 x 12 V batteries) 135 V will not be enough to charge them. But if you have 135 V DC (which means 10 x 12 V batteries) you can not give to them 270 V, because you can spoil them.

That's why you should measure the voltage on the batteries, not at the rectifier.
  1. If the batteries have the correct voltage for their number 135 for 10 batteries you can not adjust it to 270, you should adjust 135.
  2. If it is 270 for 20 batt's your rectifier did not get your order.
  3. If it is lower then the number of batteries multiplied by 11 V you may have a bad battery or completely discharged batteries and you need to charge them outside the UPS by other charger (One by one or in series) until their rated voltage is reached.
  4. Some of your internal breakers may not function well.

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