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Power not turning on no led activity is it possible that the processor is defect? have no servmanual so its very difficult some measurement values would be helpful regards raikkonen

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  • Anonymous Jan 29, 2008

    i had this amp hooked up before in my truck.. thought i was selling my truck so i removed the amp. when i hooked it back up, no lights, nothing. LED light is not on. and no sound coming from sub. one thing im not sure of, i didnt install my aftermarket deck before, i had it done. this time i reinstalled it myself. the only question i have, the wire that is connected to the amp the remote/power ant. wire, im positive its connected correctly to my deck, could that have anything to do with no power going to the amp?

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Yes it really help me to get my system running thank u my buddy.

Posted on Sep 11, 2008

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You can short the remote turn on to the +12V and see if the amp comes on that way. If not, either the amp is hooked up wrong, or it's faulty. Let me know and be sure to leave good feedback or I don't get paid.

Posted on Oct 03, 2007

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1 Answer

I have an LG 47LN-5400-UA when I turn the power on the LED blink and I have audio, when I measure the voltage output to the led on power supply no voltage. Please advice


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Have you tried some Youtube suggestions about this model ? LG is a special brand most difficult to do something without an service manual , control for bad solderings (special on active components with heatsinks) , bad fitted fcc sheets connectors power supply In safety mode because of an failure somwhere.

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Error sign when turning it on. New batteries where installed


Possible that the LOAD CELLS are defective. Please check the main power and the feed to the processor and if the voltage are correct, then check for mechnical jamming of the tray . If there is no there observation , the fault can be the load cells. Estimate the cost of new cells, if possible get a trail piece for confirmation.

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Sure the power supply si working and the processor seems struck up to trigger the power but is not responding to the remote. So it is important that the main processor is checked to fulfill the working. Check for the +5 rail voltage, check for the input /output data, check the remote feed of data and the crystal oscillator.
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Wont measure distance


Must see if the battery is in correct polarity and is set right . If power comes without any measurement, thenit is possible that the laser is not active , the beam is not readback , the processing is faulty for the return signal.
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Dell inspiron 6400 problems switching on power After switch on the poweer button .. One led is staying on and other two led is blinking after sometime all led light gone off.. Please advice me to...


1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
4. The power button could be bad.
5. The motherboard could be defective & needs to be replaced.

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1 Answer

My Acer make Laptop model: aspire 4520 not power on , power led and dvd led flashes at the same time and screen blank.


1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
4. The power button could be bad.
5. The motherboard could be defective & needs to be replaced

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1 Answer

Have power..no display..power led blink several times and then goes off


1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
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3. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
4. The motherboard could be defective & needs to be replaced.

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This could be a defect in the metering circuit. In order to verify this, you should measure the output externally. Get that external measurement and post the results here. We'll continue from there.

Dan

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2 Answers

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