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Looking for 4.5 AC/DC Power adaptor. Current Adaptor Not Working.

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Amp turns on but puts out no sound except for faint noise which dies out after a few seconds.


It sounds like a defective/incorrect AC-to-DC adapter may have caused your problem. These adapter come with different output voltages, AC or DC output and different amperage ratings. AC-to-DC adapters list the polarity of the DC voltage as it relates to the DC power plug and you must match both the devices voltage and power requirements. As for the amp...not working on batteries either, I would suspect output transistors or IC.

May 23, 2014 | Marshall Amplification Marshall MG2FX...

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The power on my banshee is coming on?


Check the polarity of the adapter, if it isn't the original one. Even if you have the right voltage, it still has to have the mA or higher but, most important is the polarity. Most guitar pedals are wired backward on the plug. The positive is on the outside ring of the plug and negative is in the middle. There should be a picture or diagram somewhere on the unit close to the plug to find out. If it is backwards, it could have damaged it, maybe not though. If it is ok, cut the plug off and switch the wires and check it. After all, it's not working now, it couldn't hurt.

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1 Answer

I am looking for an ac adapter for a pixma mp600


I am not an expert on this, but my experience is:

I dont have an AC-DC adapter on my MP600, its a two pin mains lead directly inserted into the printer.

I am in the UK and the mains electricity is 230-240V @ 50Htz.

If you have a model that requires a power adaptor then you could buy a generic one as a replacement but make sure that the 'Current rating' (in amps or millamps) and voltage ratings match the old adaptor or you could set fire to your printer/home.

Good luck

Jan 16, 2012 | Canon PIXMA MP600 all-In-One InkJet...

1 Answer

My remote speaker system works with the batteries but not with the AC adaptor plugged in to the speaker.


I would suggest to check AC outlet first where adaptor is pluged in,if Ok measure output voltage from adaptor to see if there is any (using any voltage multimeter with AC/DC)
Check label on adaptor shold be writen AC or DC output ,and value 3V,6,9,12,24,48 etc...
If adaptor is ok then problem is power jack mounted in to the speaker (cold solder joints' or damage)

Aug 23, 2011 | Audio Players & Recorders

1 Answer

Where i find ac dc adaptor durabrand portable pdv 705


You should go to a local electronics shop with the old adaptor.
They merely need to match: Voltage in Voltage out Current requirements Plug size Plug polarity (center positive or negative) There is nothing "magic" about the original vendors power adapter.

Oct 06, 2009 | Durabrand PDV-705 Portable DVD Player

2 Answers

Ac adaptor on my 32 Protron inch LCD TV no longer work


What is the current output of the adaptor? If it is AC and you use only the 12v to 3v it is ok. But if the current output of the adaptor is DC and you use both 24v to 6v and 12v to 3v there is some danger if use the new one. Remember that DC current have polarity.

Aug 29, 2009 | Protron PLTV-32 Television

1 Answer

Lightning strike ac adaptor is fried


Your phone did expirence a surge that probably blew the ac adaptor which happens most of the time, u can buy one of those universal adaptors and look on the back of the old adaptor for the output voltage it will usually read between 3 and 8 volts DC.Set the universal adAptor voltage to the setting right below the voltage output on the back of the ac adaptor.

Aug 04, 2008 | Uniden Cordless phone EXS9950

3 Answers

HP printer AC power adaptor 0950-4399


I want to purchace new HP printer AC power adaptor 0950-4399 from mumbai where shall i contact

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Mar 26, 2008 | Office Equipment & Supplies

1 Answer

Lap top problem


Hi

If the AC power light is blinking, try the following steps:

1 Cut off power to the computer by disconnecting the AC adaptor and removing the battery. The error condition will be interrupted, and the AC power light will stop flashing.

2 Put the battery back into the computer. Do not connect the AC adaptor. Try turning the computer on again. If the computer starts normally, the AC adaptor may be
defective and will need to be replaced. If the AC power light starts flashing, remove the battery, and continue with the steps below.

3 Connect the AC adaptor to the computer. Leave the battery out of the computer. Try turning the computer on again. If the computer starts normally, the battery may need charging, may be depleted, or may be defective. Turn the computer on, insert the battery, and then leave the computer running for several hours, which will deliver a slow, steady “trickle-charge” to the battery. Once the battery has been trickle-charged, it may begin working correctly again. If the trickle-charging does not prove effective, consider replacing the battery with a new one.

4 Connect the AC adaptor to a different power outlet, preferably in a different room. If the computer starts normally, there may be a problem with the AC outlet itself, or the voltage level available from it.

5 Verify that the AC adaptor is the correct unit for your computer model. The computer may not be able to start from an AC adaptor that is rated for less current (amperage) than the computer requires, even if the rated voltage is correct, and the plug fits correctly in the DC-IN socket. The labels on the bottom of the computer and the AC adaptor show the specifications for voltage ("V") and current ("A") for each device. The voltage level must match exactly. The amperage rating of the AC adaptor must be equal to or greater than that required by the computer

Regards
Mike

Mar 21, 2008 | Toshiba Satellite 1805-S204 Notebook

1 Answer

Help


sounds like you have an intermittent problem with your AC adaptor or dc input jack. Does the light on the AC adaptor light up when you plug it in? If it does then your dc input jack may be faulty. If the light on the ac adaptor does not light then replace the ac adaptor. Good Luck!

Sep 16, 2007 | Toshiba Satellite M30-S350 Notebook

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