WONT POWER ON when plugged into a known good power source
What do I do? It does not power on. When I listen closely to the unit when plugging it in it makes a small pop noise, and that's it!!!! Damn it all anyway. Can anybody help me or tell me what I need to do to fix the power failure?
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Re: WONT POWER ON when plugged into a known good power...
This is from the FAQ on a similar model (the 770). My guess is that it won't be much help, but who knows... :
The machine is not receiving a power signal. Make sure the power cord is plugged securely to the power outlet.
If a surge protector or an extension cord is being used, disconnect them and plug the fax machine's power cord directly to the power outlet. If the fax machine is still not receiving a power signal, try plugging the machine's power cord into a different outlet on another circuit breaker.
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Step by step troubleshooting.
Verify power outlet is good
Verify power adapter is good
verify connection to computer is good
fully charge battery
Check power source, plug known good light into AC receptical.
If AC cord has connector to power block verify it is properly seated.
plug adapter into AC outlet
Verify Power is present at power connector with another similar computer or voltmeter. (12V to 20V)
When plugged into computer, charge (not power) indicator MUST light either red, amber, or green. If not, connector on computer may be broken.
leave overnight or until charge light is green
turn on normally.
most likely causes:
- loose connector
- broken wire from power adapter
- broken power plug on computer.
- anything else is probably beyond ur capabilities to fix.
Ensure the power supply is 120/22/240 VAC or 12/24 VDC power, with AC power as the preferable source. An improper power supply may result in poor performance or lack of cooling by the refrigerator.
Ensure the unit is plugged in and turned "ON" if it does not seem to be working. Check the fuse, located on the side of the inverter case.
Listen to the compressor, which is located in the rear of the unit near the bottom. If the compressor is not running,it makes a humming sound, disconnect power to the unit and contact a service technician, as either the compressor or thermostat may be defective. If the compressor is running,
Turn the temperature control dial if the refrigerator does not seem to be cold or warm enough. Number 1 on the dial is the warmest and number 5 is the coldest. After changing the temperature control dial, leave the refrigerator door closed for several hours to allow the temperature to change.
Good day! Here are some tips I can share to you on how to troubleshoot the problem. First, check physical connection. Check power cable for any visible defects. Replace cord if there is. Make sure the power source is a known working one. Try not to use any power strips, plug printer straight to the wall jack without any extensions. With the power cord plugged in to a known working outlet, unplug and replug it in the back of the printer's power supply. If still no power, press the power button of the printer. Hope I can help you more on this. Good luck!
I dont think you lost everything. Do you see any green power lights and do you hear the normal hard drive and fan sounds when booting up ? If you do and still wont boot up to Windows then reboot and keep tapping on F8 to safe mode and select "last known good configuration". You can also perform system restore.
If you dont hear anything at all, no power and you dont see any green power lights then you may have to plug into another known good power outlet. check that your power connections (including the power adaptor) are secured and if on a strip power off and on. If that doesnt work, try another power adaptor. If those doesnt work remove the laptop battery and just plug in the adapter.
If youre concern about your personal files you can always take out the hard drive, piggyback it to another hard drive on a known good PC and retrieve the files.
First you need to isolate the problem by doing some troubleshooting.
1) try a known good sync cord to determine if the problem is the sync cord and not the power pack.
2) try a known good sync cord with a known good camera to determine that the problem is not in the camera.
3) try your camera with a different power pack to confirm your camera is triggering the power pack OK.
These steps will isolate the source of the problem.
Motherboard Replacement needed most Likely..
Toshibas are known to run very hot...
and over time it might have caused a Short in your Motherboard..
Try connecting laptop to an external video source to see if it is a bad video card.... but I am leaning towards motherboard.... The DC Jack is probably not your problem being that when plugged into AC Power source.. It Lights up a Power Light On the Laptop... which indicates, power supply "good"