Question about Acer AL1717 17" LCD Monitor

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How do I check the amps of the 5 volt supply on the monitor motherboard?

And what if it is bad? Is there a part that can be replaced, or do I need another monitor? How can this be fixed at low cost?? Please and thank you.

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Your question was presumably cut off in the title of your post, but on the power brick, there should be several statistics of the power supplied by the cable. There should be watts, Amps, and whether the output is AC or DC. I believe your monitor takes DC power, so if you are buying another power supply, make sure that it gives out DC power, not AC. Also make sure to get the specific wattage, and for a monitor that size, 3.0 amps should be more than enough to keep a steady power flow, and also keep the power brick at a reasonable temperature.

Posted on Aug 22, 2008

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I need to know the polarity of the barrell plug on hp pavilion f1703 that was given to me with out the powersupply. **** w. Pierce dickwpierce@juno.com


It's center pin positive, sleeve negative. Replacement supplies are commonly available online. 12 volts DC, 4 or 5 amps is what the replacements are rated.

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You can download free service manuals here:
http://elektrotanya.com/?q=showresult&megnev=lg&megnev2=l1719&kategoria=&kat2=all

Did you replace all the caps in the 5 and 12~18 vdc power supply section? Do you get the 5 and 12~18 volt output from the power supply? What is the symtom now after new caps? Does the screen flashes on then goes off?

http://s807.photobucket.com/home/budm/allalbums

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Bad power adapter for x2 gen monitor


http://www.digidave.co.uk/jshop/product.php?xProd=574&ref=adwords&gclid=CO7-yI6E5pwCFZ0U4wodaELMGg

Looks like that could be what you are looking for.

Nick

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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

Help Please!


power supply is bad on one of its legs(12 volt or 5 volt) you can have that bench tested at a service center or use a volt meter to check the output on the cables probably the 5 volt as the agp and the dvd roms cdroms etc need 5 volts to operate

May 01, 2008 | NEC MultiSync 1760NX 17" 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

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1 Answer

Sceen wont come on


check the amps of 5 volt supply of LCD motherboard. the current is ok but may be the ampears are down. (possible in most cases).

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10 Answers

Blank screen


This problem is very often caused by dry electrolytic capacitors on the inverter board. If you have some skill with soldering you could try to change them. When buying new ones ask for LOW-ESR capacitors for switching mode power supplies (SMPS) and 105°C, they are a little bit more expensive than normal electrolytic capacitors, but are designed for this aplications so they lasts more. Normal el. caps will also works fine so when you cannot buy LOW-ESR for SMPS use normal ones.

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