Question about ViewSonic VA720 17" LCD Flat Panel Monitor

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Have a flat screen viewsonic with no adapter cord. Takes a 12 v 3.3 amp. What would happen if I hook up a 12 volt supply with more than 3.3 amps? Thanks, Tom

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Higher current is OK and better than not having enough and it does not do any damage, voltage cannot be higher.
Just think of it like a AAA and AA batteries, both have the same voltage but AAA has less current capacity.
The power supply must be regulated 12vdc though, which will be switch power supply type and also observe the DC plug' polarity (center positive).
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Posted on Aug 20, 2010

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1 Answer

Manuals free


Your question was worded poorly and it's difficult to understand what you are asking. As a guess, if you are looking for a 30-amp adaptor cord set, perhpas this will work:
Conntek 20601 25 Foot 10 4 30 Amp 125 250 Volt 4 Prong L14 30 Transfer...

If it's a 3-prong adaptor:
Camco 55333 30 AMP 3 Prong Generator Adapter

Or a 15 to 20 adaptor:
Coleman Cable 09020 12 3 9 Inch Generator Cord Adapter 5 15P to L5 20R

Aug 27, 2014 | Electrical Supplies

1 Answer

Can i hook it up to a 12 volt plug in my home?


I have been installing car audio for over 40 years.A small adapter like you use to charge a phone,Doe,s not have enough amps in it to run the deck (Properly) When you crank up the vollume, The deck will cut out, You Can buy a bigger 12 Volt power supply from radio shack or the source that will power it (Properly) It should be at least 3 amp output .

Oct 17, 2012 | Pioneer DEH-P4800MP CD Player

1 Answer

When I plug in the power cord nothing happens. I press the power button and nothing seems to happen. I tried 3 different cords.


The power supply on lcd and other flat screen type monitors utilize a group of capacitors as a static pulse for the screen to energize..my bet is that one or more of those have failed...it's actually a common problem with flat screens. Most of them, those that won't power up anyways, have this exact same problem. If it's not that, then your power supply is burnt out, and if that's the case it may be cheaper to get a new monitor instead of trying to fix the old one.

Dec 13, 2010 | ViewSonic VX2835wm Monitor

1 Answer

Craig High Definition LCD TV (15.6 in) power cord


The power source is a 12 volt transformer so you can use a standard universal power supply. A 12 volt DC Power Cord with Auto Cigarette Lighter type Adapter will work in an auto.

Nov 03, 2009 | Televison & Video

1 Answer

Need tip size for viewsonic powere supply


insidecomputer_2070_4186448

Replacement Part Number: 1267-0526
Specs:
  • 40 Watt, 12 Volt AC Adapter
  • 4.8 mm Barrel Connector with Positive inside
  • Condition: New
  • Warranty: 12 Months
  • 100% OEM compatible, Guaranteed to meet or exceed OEM specifications
Compatible Models:
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  • Planer LP150-BK
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Sep 07, 2009 | ViewSonic VG151 15" Flat Panel LCD Monitor

2 Answers

Screen went black


Check the power supply for 12 volts dc, it must provide at minimum 3 amps of power to trigger the on circuit. If not, replace the adapter... if you need one, please contact me.

Jan 12, 2009 | Sanyo CLT2054 20 in. EDTV-Ready LCD...

5 Answers

What voltage is the dc adapter?


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.

Oct 03, 2008 | ViewSonic VA520 15" Flat Panel LCD Monitor

1 Answer

Got flat screen as a gift


This monitor requires a power supply with a POSITIVE tip polarity.
Monitor requires 12 Volt DC @ 3.3 Amps output.
Make sure voltage is 12 Volts DC [absolute requirement]

Power Supply can have greater than 3.3 Amp capacity. More amp capacity increases price, so I wouldn't go for more than 5 Amps [minimum 3300 milliAmps, 5000 milliAmps will be more than adequate].

Put a surge protector on your computer and monitor to extend their life....better yet, a power conditioning battery backup system, that can supply constant voltage, to compensate line voltage when A/C, furnace, or other major appliance kicks on.

May 04, 2008 | SVA-USA VR 17S 17" Flat Panel LCD Monitor

1 Answer

Monitor light blinks


have you tested the power supply connection feeds? test each connector I think you will find your power supply has failed on either the 5 volt or the 12 volt side more than likely 5 volts are down' the agp adapter needs 5 volts to run. since you have changed out every thing else I would replace that or test your dads power supply in your computer, that should do the trick

Apr 28, 2008 | Samsung Syncmaster 730B 17" Flat Panel LCD...

1 Answer

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.

Sep 13, 2007 | ViewSonic VA720 17" LCD Flat Panel Monitor

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