Question about ViewSonic VA520 15" Flat Panel LCD Monitor

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What voltage is the dc adapter?

Power adapter

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You will need at least a 4 amp rated regulated 12 Volt power supply.
These are commercialy available from most electronics parts suppliers.
They come on a circuit board. You can mount it in your own case and
use the original Viewsonic wire end. If you do a google search for 12
volt reglated power supplies you should find many of these.

However, with a second-hand Sprint AC adapter with 3A,
12v adapter, the screen blinks on and off
intermittently. Obviously there is some difference here between a class
2 adapter and a power supply box.

Posted on Oct 03, 2008

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My viewsonic va520 had the problem of going of after about 20min,then if unplug the power supply,plug back in,it would cut out every 5 min. I have an adapter which is not for the va520,It`s a liteon model pb-1240-01a-rohs,12volt at 2amp also tryed 12v at 5amp; by dynex model bt60p1205, and they both work it. found my problem to be a couple of capacitors on the main board.,(c1 and c9.,replaced those now all ok again. hope this helps someone.

Posted on Nov 04, 2009

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I need a power cord for va520

Posted on Sep 17, 2009

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The dc adapter should be rated 9.3 amps at 12 volts DC, remember that under usage in an AC system the amps are 17-21 amps and the voltage is 110-120

Posted on Oct 03, 2008

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Look carefully at the jack for the power input; the required voltage and cuirrent is normally shown either molded in the plastic or printed faintly near the jack.
If it isn't present, do a search for reviews; many of them will include the either the input specs of the monitor or the output specs of the provided adapter. 

Posted on Oct 03, 2008

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Benimur
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SOURCE: AC/DC Adapter

Hi, You would need an adapter that puts out 12 Volt DC, Output Current: 3.3 Amp and the Center Positive Power Tip (Output Power: 40W). The original ViewSonic adapter is M/N: UP06031120A Hope this be of some help/idea/ Post back how things turn up or should you need further information. Good luck and kind regards.

Posted on Sep 13, 2007

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Posted on Jan 02, 2017

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Need to know input, polarity and voltage to ensure I have the right adapter.


Complete Guide to Using the Correct Charger or Power ...

www.groovypost.com/.../choose-right-power-adapter-charger-phone-lap...
Jun 24, 2013 - If the device has a DC input of +12V / 5.4A, get an adapter that has a DC output of +12V / 5.4A. If you have a universal adapter, make sure it has the proper current rating ... Ideally, you'll have the same voltage, current and polarity on your ......or hdmi on my laptop .can you say what's the reason for the same.

How to select an AC to DC power adapter - ApogeeKits

www.apogeekits.com/power_adapter_selection.htm
An explanation of regulated versus un-regulated AC to DC voltage power adapters. ...voltage output power adapters and how to use this information to select the right one... Some (more expensive) DC voltage output power adapters have voltage ... Care should be take to ensure that the maximum input voltage of the load ...

AC/DC Power adapter ' Laptop Parts 101

www.laptopparts101.com > Laptop parts
Dec 26, 2008 - It's very important to use the right adapter for your laptop. ... Polarityon the new adapter's plug must be the same as on the original ... AC/DC power adapter voltage and amperage ..... I have purchased an non-hp dc-dc convertor (150W), 12Vinput, 19V output. .... So the cable component has to be replace.

Determining Proper A/C Polarity - Galen Carol Audio

www.gcaudio.com > Resources > How-To's

Jan 10, 2016 | Computers & Internet

Tip

How to troubleshoot your laptop at start


When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead. What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.
OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.
If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack.

on Mar 27, 2010 | Computers & Internet

1 Answer

What is the power output of ac dc adapter in jensen jta 460? Can this adaptor be changed with 220volt ac dc adapter with required dc output?


For Any Adapter:
As long as the Voltage and Power output of the power supply (wall outlet or other) matches the input requirements for the adapter whether 110V or 220V.at enough amp output; and
IFF the dc output of the adapter is exactly the same voltage and has for amps at a minimum matches the maximum amperage requirement for the input of the device, any of them will work, as long as it has the right connector with the correct polarity needed for the device!

Or, in other words...

Supply Output V = Adapter Input V
and
Adapter Output V = Device V
Adapter Output A(min) >= Device A(max)

Aug 27, 2015 | Computers & Internet

1 Answer

How do I fix my power adapter?


Could be the capacitors that filter the final D.C voltage in the power apadter . If the capacitors fail the D.C voltage would have 50 or 60 hertz hum on it. If a diode has failed it could also cause a more severe pulsing of DC voltage. A oscilloscope would show up if the DC is being distorted but I do not know where you would get access to one. A repair shop maybe ?

Jul 02, 2015 | Crosley Audio Players & Recorders

1 Answer

I have a Hasee e130 notebook and it does not recharge the batteries. First I thought it was the battery but the same battery recharges on other notebooks. How can I solve the problem ?


when you charged the battery on the other notebook did you use your notebook's ac-dc power adapter unit. I would try using the other notebook power ac-dc adapter on your notebook or get a voltmeter set on DC voltage 20volt range and test your notebook AC-DC adapter produces the required DC voltage of the Notebook requirements.

Jun 12, 2015 | Computers & Internet

1 Answer

So far I've attempted to replace the motherboard for power. Bought exact same on eBay but got robbed. That one wouldn't even allow me to get power... So any ideas on which direction I might go?


what sort of power . do you mean electicity or processing power. I would look at the AC to DC adapter power pack if it is a laptop and electricity. The battery could need replacing on the laptop but if you aint getting electricity like DC voltage out of the AC to DC adapter the battery goes flat. . A voltmeter could measure the DC voltage coming out of the AC to DC power pack adapter unit to confirm if power adapter is at broken.

Apr 25, 2015 | Televison & Video

1 Answer

Only distortion..


Check your power adapter. This unit REQUIRES a 9 volt AC adapter, NOT a DC one... It MAY appear to operate on DC BUT it can't generate the +/- voltages internally for sound generation with a DC adapter. This is a common problem as people try to run these on a DC adapter.

Here is a link:

http://cgi.ebay.com/AC-POWER-ADAPTER-Alesis-HR16-SR16-D4-DM5-/380178938839

Apr 10, 2011 | Alesis Sr 16 Stereo Drum Machine

1 Answer

What voltage and polarity do the ACS-5 speakers require?


Computers always use DC voltage. Computer speakers receive DC voltage from the computer.
DC voltage has a Positive and Negative polarity.

In the power jack of the speaker, the Center pin is the Positive connection. The outer shell is the Negative connection.

Center hole of the DC adapter plug - Positive.
Outer shell of the DC adapter plug - Negative

Voltage 5 Volts DC.

In case you need it,

http://support.dell.com/support/edocs/dta/acs5/

Nov 29, 2010 | Computers & Internet

3 Answers

Use Sony ICF-C1IPMK2 in Europe


A transformer type (Linear Mode Power Supply) AC to DC power adapter with a 9.V nominal output, measures about 12.V without load when tested with a multimeter. A power adapter with a nominal output of 7.5 V, measures a little over 9.V. Considering a number of people across different forums reported the adapter's measured power output as 12.V, I think the nominal rating of the AC to DC adapter should be 9.V. However, keep away from Switch Mode Power Supplies.

Jul 21, 2009 | Sony ICF-C1IP White Powered Speaker System...

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