Replacement power adapter for Vega?

[Guest jellywobbles]

I have been searching to try & find a "spare" power adapter for my Advent Vega - one for work & one for home.

The original as supplied is made by Asian Power Devices & is numbered WA-12|12R providing 12v DC output @ 1A. Positive to centre.

This type of adapter is quite common for low power stuff & I had a fancy I had one with a Netgear switch.

On further investigation I found this:-

Available from here:-

http://www.power-plus.tv/power_plus_other_power_supplies.htm

12v 1A with positive to centre.

At £7-50 its not going to break the bank!

Does anyone else know of a better alternative before I order one?

Cheers

JW

[Guest rvdgeer]

How about the plug?

Is it the same?

[Guest warriorscot]

Don't get one. The voltage is correct but I have one sitting here under my desk from when I was messing with the routers last and it the plug on the end is the wrong shape its significantly shorter and thicker than the one on the vega power supply.

[Guest jellywobbles]

Don't get one. The voltage is correct but I have one sitting here under my desk from when I was messing with the routers last and it the plug on the end is the wrong shape its significantly shorter and thicker than the one on the vega power supply.

Cheers - I had a 3rd party measure the plug diameter for me - obviously shorted sighted!

Ah - well - worth a try! :)

[Guest Higgsy]

what about one of these multi type ones this one is 800ma but would still be ok - not at home to check out the jack type tho.

http://cgi.ebay.co.uk/Multi-Voltage-Power-...d#ht_1937wt_905

[Guest warriorscot]

Definitely worth it. If you even look at the image you can see it wouldn't fit its not as obvious until you have both in front of you though.

If you do find something that works let us know it might be useful to get a spare.

[Guest jellywobbles]

what about one of these multi type ones this one is 800ma but would still be ok - not at home to check out the jack type tho.

http://cgi.ebay.co.uk/Multi-Voltage-Power-...d#ht_1937wt_905

Dont think 0.8A will cause too much bother - just take a bit longer to charge. It has got a polarity switch as well!

[Guest warriorscot]

Wether that would work would depend on lots of things. Some things will charge ok with slightly different power output levels others will throw a hissy fit and others again just wont do anything at all.

Honestly I think its just a case of tracking down the right supplier. The output is fairly standard for smaller pieces of electronics so it just needs an adapter with the correct plug. Unfortunately while the actual output levels are fairly standard the physical dimensions are not.

[Guest Uzi74]

My PoV Mobii is on the way, I'm wondering if I could use my APC Universal Battery 70Wh to charge the device during long trips/flights. There is a slight problem: it can output 15-21V, so minimum 3V higher than the expected 12V. Would 15V damage the tablet or might it be within the tolerance limit? Or is there a simple circut to reduce the voltage to 12V?

Edited January 17, 2011 by Uzi74

[Guest pdej]

I know they would be more pricey, but what about plugs from Maplins? I would look, but don't know exactly what to look out for.

[Guest QLF]

I know they would be more pricey, but what about plugs from Maplins? I would look, but don't know exactly what to look out for.

how about:

http://www.maplin.co.uk/universal-3a-dc-power-supply-228639

Which i can confirm works (Larger of the yellow two connector tips)

plugged into:

http://cgi.ebay.co.uk/UK-Mains-12v-Car-Cha...=item43a49553dd

[Guest Uzi74]

I know they would be more pricey, but what about plugs from Maplins? I would look, but don't know exactly what to look out for.

Sorry, I was not specific enough. The APC Universal Battery is an external battery, I was plannig to charge the device when no mains net is available. It can deliver output from 15V-21V (selectable, without getting plugged in), it could extend my netbook's runtime by 4 hours or so, I would expect 20+ hours or more power independence with the tablet if I could get it work.

[Guest aintcrackedityet]

If the voltage and current are ok, then why not get a new tip from maplins, cut the cable and solder on a new one, keeping the polarity right of course.

The main issue with the vega power supply is the erratic unregulated voltage output, so you need to get one that's regulated,

Generally speaking, batterys are charged with a little over their stated voltage

so we are looking for,

correct input voltage

regulated output voltage, DC, direct current (some transformers output AC )

correct tip dimensions

maintain plug tip polarity (usually centre positive )

aintcrackedityet

[Guest zzleezz]

Typijingg. esrrThhissss witch. Aaaqa v. Swwitchxxxdx. Trtghde b. Scfrefeeeen. B uheeemoddee. Powwewwer. Szssplpppply plugggvgggeedewedsd in... b. Doloeeeeszsent. Ffi seascape crfeeeennn b. B uisdsessssu

Translation. Follows

Typing this with a switched mode power supply plugged in. Doesn't fix the screen issue.

As you can see from the above gibberish the screen went completely wacky.

Will plug in the original power supply and repeat this line as a control test.

Will plug in the original power supply and rrepeat. Thiss line as Aaron control test.

Interesting...

Worth noting that the switched mode ps only supplied .9a at 12v.

Edited January 17, 2011 by zzleezz

[Guest warriorscot]

Have you tried tha calibration app on the forum, I had a very slight sensitivity problem that running the calibration fixed.

[Guest zzleezz]

Have you tried tha calibration app on the forum, I had a very slight sensitivity problem that running the calibration fixed.

Yeah. I was the one that bumped it from oblivion. Though must give credit for that to Higsy, was his post on xda that pointed me to this. Screen is perfect now.

Would be very interested to hear if anyone who's Vega behaves like mine does on charge has actually improved it by changing the power supply. Don't actually recall anyone positively reporting this, just a few posts speculating that they expected it to work.

[Guest QLF]

Yeah. I was the one that bumped it from oblivion. Though must give credit for that to Higsy, was his post on xda that pointed me to this. Screen is perfect now.

Would be very interested to hear if anyone who's Vega behaves like mine does on charge has actually improved it by changing the power supply. Don't actually recall anyone positively reporting this, just a few posts speculating that they expected it to work.

I'd like to find oout if it's possible to calibrate whilst charging - to see if that fixes the issue whilst charging. Problem is you'd likely need to calibrate again when not charging to take account of the lack of interference. Would it be possible to run a script when charger plugged in to move between the teo calibration profiles?

Sorry - I'm just an ideas man, not enough skills to put this one into practice....

[Guest jimorg]

Why should we pay twice for something that is clearly not fit for purpose. A psu should not impair the behaviour of a product and as such the supplier should replace the defective component/compensate for replacement/refund in full on return of device. Its our legal right

[Guest QLF]

Why should we pay twice for something that is clearly not fit for purpose. A psu should not impair the behaviour of a product and as such the supplier should replace the defective component/compensate for replacement/refund in full on return of device. Its our legal right

Let me know how you get on with that m8! ;)

[Guest zzleezz]

Let me know how you get on with that m8! ;)

That made me chuckle :-)

Really doubt the power supply is faulty, as has been shown the problem goes away if the Vega is also plugged into a grounded of via a USB lead. The way this tech works I'm actually not that surprised earthing issues are a problem.

[Guest warriorscot]

I'd like to find oout if it's possible to calibrate whilst charging - to see if that fixes the issue whilst charging. Problem is you'd likely need to calibrate again when not charging to take account of the lack of interference. Would it be possible to run a script when charger plugged in to move between the teo calibration profiles?

I calibrated on the charger and it has no detrimental effect on the touchscreen when disconnected.

To be honest sometimes you get problems like this when you push technology and economy to the edge. If you buy a premium product I would say that expecting it not to have any bugs or problems are reasonable but thats not what we bought.