Electric Shock !? - JASJAR, XDA Exec, MDA Pro General

I recently bought an official o2 mains charger for my exec. It works exactly as expected, except for one thing!
It's giving me an electric shock! A very mild one, but it's there. The metal part on the top of the exec is getting electrified when charging with the mains charger.
Does anyone else with the mains charger experience this? I only noticed it when I rubbed my finger across it, it felt more "textured" than usual.

DaWolfey said:
I recently bought an official o2 mains charger for my exec. It works exactly as expected, except for one thing!
It's giving me an electric shock! A very mild one, but it's there. The metal part on the top of the exec is getting electrified when charging with the mains charger.
Does anyone else with the mains charger experience this? I only noticed it when I rubbed my finger across it, it felt more "textured" than usual.
Click to expand...
Click to collapse
Yes. I thought that was normal?

belfast-biker said:
Yes. I thought that was normal?
Click to expand...
Click to collapse
It doesn't seem very normal to me... certainly not what you'd expect at least.

YES. I noticed it the first time i charged it up. I showed it to other people but they couldnt feel it. Now I know I am not alone. I wouldnt have said it was normal, but i have got used to it.
Euan

My m5000 does this too.
The easiest way to feel it is to softly stroke the metal pad on the lid with the case closed. It feels kinda nice, but is definately current.

My JasJar, IIs and my old Xda II also did this. But only those. Perhaps it's not earthed well?

Qtek 9000 has this too

You'll be surprised how many devices have this, actually. However, it shouldn't be of any concern - it's OK'd by law in most countries. Compare it, if you will, to one of those cheap halogen light desklamps ( http://www.lightwindow.com/desklamp/500/halogen/129bl.jpg ). The 12V goes straight through the telescoping metal tubing itself, and if you rub your fingers along one side while holding the other, you'll get the same sensation. That's why they often have a little warning label with them about not hanging any necklaces over them, or it will shortcircuit ( easily tested.. it just sparks a little, but I wouldn't recommend doing it ). The power rating for these lamps is *much* higher than for any pocket device. So although it's not particularly proper (non-conductive tubing with some retractable wires would be better - but oh-so-much more expensive to manufacture), it's part of the design, and nothing to worry about.

i had noticed it, but i didnt know what it was

DaWolfey said:
I recently bought an official o2 mains charger for my exec. It works exactly as expected, except for one thing!
It's giving me an electric shock! A very mild one, but it's there. The metal part on the top of the exec is getting electrified when charging with the mains charger.
Does anyone else with the mains charger experience this? I only noticed it when I rubbed my finger across it, it felt more "textured" than usual.
Click to expand...
Click to collapse
Yes, it is true. There is a mild current along the top of the Jasjar.

wow... your first post... I'm honoured

No problem on my unit (Charmer). However, I've experienced this with other devices, an IBM Notebook (X series, bought 2003). It has a rubbery top (not metal), which give you a tickling feeling when you rub it with your sensitive skin (e.g. the skin under of your arm - wrist to elbow, the part where you do not get enough of sun light). I guess it is of a tolerance limit. I mean, if you try that on your VCD DVD player, I bet you will have the same problem too.

well that's certainly cleared that up.
Good to know it's not a faulty Exec.

I think its a "signature" of all HTC devices
I remember playing silly pranks on my xda2, where in i'd fake an incoming call when its plugged into the charger and hand it over to my friend (victim). The look on the face is worth a million! (i'm not sadistic as you're probably thinking right now, atleast not "as much"!)
the faceplate charge leak is really cool! I keep stroking it when i'm jobless. Its i guess a feature in many ways -
1. You dont have to hunt for the charging light indicator, just stroke the plate and you'd know if ur device is charging up
2. The phone call prank - priceless weapon!
3. An excellent window for passing time, stroking harmless current gives me a high! (oh yea, i'm kidding of course!)
All in all, i like the charge leak!
San
PS: Just got back from an extremely long and tiring business trip, hope my post has some relavence to the topic and makes sense in any remote manner

All of the devices which use a Switch mode power supply has it. It isn't a fault rather a design. This reason is that Switch Mode Powersupplies do not have a transformer which isolate the main 110/220 from the output.
You can also experience it if you have a computer with a metal casing (those white boxed computers)
There is however a method to minimize that shock effect. though it might not be possible with three pin adapters. Here we have two pinned adapters so just plugging it in the opposite direction make the shock go away.

ady said:
All of the devices which use a Switch mode power supply has it. It isn't a fault rather a design. This reason is that Switch Mode Powersupplies do not have a transformer which isolate the main 110/220 from the output.
You can also experience it if you have a computer with a metal casing (those white boxed computers)
There is however a method to minimize that shock effect. though it might not be possible with three pin adapters. Here we have two pinned adapters so just plugging it in the opposite direction make the shock go away.
Click to expand...
Click to collapse
lol.. I thought since you are writing in bold, it should be something.. good. Anyway, the only thing that I've notice that is right on your post is that, SMPower adapter does not have a transformer.
The isolation of the transformer doesn't stop the device from giving you a shock.
What do you mean by 'white boxed computers'? You mean those normal desktop, huh? I'm not sure about what's going on at your side, but we use 3 pin plugs here, and the 3rd pin is a ground line, which is the effective way of getting rid of electric shocks (e.g. it absorb the 'wild' current to ground, instead to you)
And the most funny thing is your last comment. You can make the shock away by flipping your two pin plug? What is the logic to that? There is a diode-like device in the adapter that will convert the current/voltage of your AC to DC. It doesn't matter how you connect your adapter, it will end up the same somewhere in the adapter way before it touches your device.
Anyway, surprisingly, for someone who doesn't seems to know electricity, you know what Switch Mode Power Supplies

ady said:
... so just plugging it in the opposite direction make the shock go away...
Click to expand...
Click to collapse
Rigghhhhtt... That makes a lot of sense (not) :roll:

mdaexecfan said:
ady said:
... so just plugging it in the opposite direction make the shock go away...
Click to expand...
Click to collapse
Rigghhhhtt... That makes a lot of sense (not) :roll:
Click to expand...
Click to collapse
Come on, maybe he meant the other other way, you know, with the pins pointing into the room rather than into the socket?
I bet that would stop the current leak!

I have no idea about anything electrical... but don't be too hard on ady. He was the one who decrypted bootloader 1.0 for the universal which is very useful to some of us... so he's acutally very smart! At least, he is at programming/hacking.

Related

3.5mm Headphone Adapter for HTC Kaiser

Can anyone reccomend a good cable or are they all basically the same. I have seem some on ebay. I just wanted some advice if anyone knows better.
Thank you.
This one is small and compact;
http://www.semsons.com/2miusband3st.html
I got this one: http://www.pdashop.nl/product/41080/45045/3327/veripart-standard-headset-converter-htc-extusb.html dunno where to get that outside of Netherlands but they gotta have it somewhere...
I aspecially like the very short plug and the very flexible short wire; there 's hardly no chance of breaking this because off too much strain on the plug
The best one I have is the one I made by taking a TyTN's headset with nice angle connector, chopping it off and modifying it as per Matt and Tracy's Blog;
http://www.tracyandmatt.co.uk/blogs/index.php/2006/08/18/orange_spv_m3100_headphone_adapter_hack
RemE said:
This one is small and compact;
http://www.semsons.com/2miusband3st.html
Click to expand...
Click to collapse
I can second this one; Got it originally for my Hermes and it also fits the Kaiser. It's compact, has 3.5mm jack AND Mini USB connector.
I like this one
http://www.mobilecityonline.com/wireless/store/productdetail.asp?productid=22740
The right angle the cable takes easies my fears of straining the miniUSB port and weaking/loosening the contacts. I don't like the longer, straight-out USB connections on other headphone adapters. Although RemE's Semsons combo miniUSB/3.5mm adapter is pretty cool. I probably would have gotten that if I had known about it earlier.
Here's another, in-stock and cheaper;
http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=776
RemE said:
Here's another, in-stock and cheaper;
http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=776
Click to expand...
Click to collapse
sweet, bought, thanks!
For UK users, I found a right angle one at expansys
Bah, they are out of stock, anyone know where to get a right-angle one in the UK now?
I did find a non-right angle one for 1p though
right angle with a stereo plug/jack make sense ... because when you turn/twist ... the round plug would rotate ... less stress ..etc
but with a mimiUSB/extUSB ... IT JUST DOESN'T MAKE SENSE AT ALL !
when you turn/twist ... that rectangular connection would just twist/turn ... the damage would be the same whether it is right angled or not ..
~~~
UnicornKaz said:
right angle with a stereo plug/jack make sense ... because when you turn/twist ... the round plug would rotate ... less stress ..etc
but with a mimiUSB/extUSB ... IT JUST DOESN'T MAKE SENSE AT ALL !
when you turn/twist ... that rectangular connection would just twist/turn ... the damage would be the same whether it is right angled or not ..
~~~
Click to expand...
Click to collapse
Except a right angled plug takes stress off the plug because it moves tword your head, as opposed to straight, unless you have the kaiser upside down. If its sideways in the holster, instead of pointing out it points up
I prefer the angle for watching video in landscape mode, the cord goes straight down.
I think it also has less damaging "leverage" on the connector of the phone, I'm less worried about twisting, it's bending I worry about, simply my opinion.
Hi,
What is the audio quality like when connecting one of the above mini usb converters? does it noticeably degrade in any way?
ump001 said:
Hi,
What is the audio quality like when connecting one of the above mini usb converters? does it noticeably degrade in any way?
Click to expand...
Click to collapse
This is just wire, no active circuitry, there is no effect on sound.
RemE said:
This is just wire, no active circuitry, there is no effect on sound.
Click to expand...
Click to collapse
Technically there has to be an effect on the sound as you have just introduced a connector which has impedance . Whether you can hear the difference is another matter. If the connector is a really, really cheap one then you may be able to hear.
Yah, whatever. Technically the "impedance" of a 1-6 inch piece of wire ain't much, far less than fraction of an ohm which is mouse nuts compared to the impedance of the ear buds speakers, so I'll go with "makes no difference". Quibble away...
Im still partial to the Semsons one since ti would still aloow the phone to be charged simultaneously (like if I was on a long plane ride).
nice, thanks!
exactly what i wanted + cheapest : http://cgi.befr.ebay.be/Enhanced-Mi...ryZ14419QQrdZ1QQssPageNameZWD2VQQcmdZViewItem

recommendation for wired headset/mic

Hello,
Would someone please recommended a good/decent wired headset/mic earphone? Ideally one with the USB male end that the Tilt will accept.
Thanks.
if you have a good set of 3.5mm headphones you can use this
http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=866
I just got mine, works great. A bit hard to insert the male into the kaiser for the first time (in my case it was to big for the female, lol)
ekw said:
if you have a good set of 3.5mm headphones you can use this
http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=866
I just got mine, works great. A bit hard to insert the male into the kaiser for the first time (in my case it was to big for the female, lol)
Click to expand...
Click to collapse
Thanks ekw.
That may be a viable option.
Tex........
I got something similar in the retractable InEar Isolators, also from Seidio (http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=777)
i can confirm that they work well, both in the sense of working well with the kaiser and also working well in terms of sound quality. I have only had them for a while and don't make that many phone calls, but have had no complaints so far about the mic quality, but still too early to judge on this.
my main complaint is the way the jack bends to the right, which obstructs taking the stylus out on my kaiser. i can still take it out, but only with considerable effort.
Anyone know if a straight plug version is avail?
somynex said:
I got something similar in the retractable InEar Isolators, also from Seidio (http://www.seidioonline.com/index.asp?PageAction=VIEWPROD&ProdID=777)
i can confirm that they work well, both in the sense of working well with the kaiser and also working well in terms of sound quality. I have only had them for a while and don't make that many phone calls, but have had no complaints so far about the mic quality, but still too early to judge on this.
my main complaint is the way the jack bends to the right, which obstructs taking the stylus out on my kaiser. i can still take it out, but only with considerable effort.
Click to expand...
Click to collapse
Thanks for that mini review. Is anyone aware of a seller in the UK with a straight plug version of these? I'd rather avoid the $25 postage they charge to post it to the UK. What an oversight to not consider whether the stylus can be removed properly when the headset is plugged in It makes me wonder if they actually tested out a prototype before putting them into production. The way I see it, the only acceptable plug shape is straight because even if it bent 90 degrees to the other side then it would interfere with any attached lanyard, bent up would obstruct the microSD slot and down means the device wouldn't sit flat.
Flying Kiwi said:
Thanks for that mini review. Is anyone aware of a seller in the UK with a straight plug version of these? I'd rather avoid the $25 postage they charge to post it to the UK. What an oversight to not consider whether the stylus can be removed properly when the headset is plugged in It makes me wonder if they actually tested out a prototype before putting them into production. The way I see it, the only acceptable plug shape is straight because even if it bent 90 degrees to the other side then it would interfere with any attached lanyard, bent up would obstruct the microSD slot and down means the device wouldn't sit flat.
Click to expand...
Click to collapse
This might work for you. http://www.expansys.com/p.aspx?i=148518&asource=151713
BTW, anyone try this yet??
It has a straight plug, and you can get it from expansys UK...
I've been happy with the HTC OEM earphones from this guy: http://cgi.ebay.com/NEW-OEM-STEREO-...ryZ20336QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Hard to beat his price - less than five bucks delivered in the US. I was impressed enough that I went back and bought a second pair.
The USB jack on the ones that I have bends 90 degrees to the left, so the stylus isn't covered.
suntzu said:
This might work for you. http://www.expansys.com/p.aspx?i=148518&asource=151713
BTW, anyone try this yet??
It has a straight plug, and you can get it from expansys UK...
Click to expand...
Click to collapse
Thanks for the link. It’s not worth me crossgrading from the original HTC supplied headset for those - they seem much the same sort of thing. If you look at the other link I was referring to you'll see they're the sort of earphones that go right into your ears. The problems I have with my current original TyTN II headset include the foam 'socks' falling off regularly (the original socks only lasted a month or two and as HTC don't sell replacements, I'm now using Motorola ones) also they're a less than comfortable fit. If enough people enquire with Seidio then it may speed up the process of them releasing straight plug versions (hopefully with a decent carrying box).
greenbrd said:
I've been happy with the HTC OEM earphones from this guy: http://cgi.ebay.com/NEW-OEM-STEREO-...ryZ20336QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Hard to beat his price - less than five bucks delivered in the US. I was impressed enough that I went back and bought a second pair.
The USB jack on the ones that I have bends 90 degrees to the left, so the stylus isn't covered.
Click to expand...
Click to collapse
Thanks! Just ordered one...
suntzu said:
Thanks! Just ordered one...
Click to expand...
Click to collapse
Same here.
For all of you who don't like these standard-earphones:
http://www.digitec.ch/?param=toppreise&wert=146036
With this one, a change of earphones is possible!

Tilt GPS Cradle from Justpal.com Revisited with GOOD NEWS

MisThis is a follow up to my last review of the GPS Cradle from Justpal.com.
First of all I must give KUDOS to Justpal.com . As I wrote before, I really had no problem with them as far as quick shipping. Their shipping fees were also lower than other vendors with the same model of GPS cradle. I referenced my previous review in the short space that eBay gives you for comments. The folks at Justpal emailed me for a copy of the review which I sent them. Of their own volition they sent me another cradle without charging me any shipping. While I was surprised, I did not anticipate much better performance than the last. I was pleasantly surprised!
Each of the issues which I had with the cradle was resolved with this new cradle. I apparently had received a unit that was produced with multiple defects.
The first issue I had was the fit of the Tilt in the cradle. This one is very good. It is still tight but the connector lined up without undue force or any wiggling of the Tilt to get it aligned. I would say this issue is resolved.
Secondly, since the vent mount brackets didn’t fit well in my Matrix vents, I used the suction cup mount. It is better than I had anticipated and actually allows the arm on the mount, which is covered with a ribbed plastic sleeve, to provide a bit of a cushion to the unit where it rests on the dashboard. It could also be adjusted to allow a landscape view of the road but I prefer to see the long view rather than the wide view of the road. It is slightly more to pack when I travel but not a real problem at all. I would consider this issue resolved also.
Thirdly and the real issue was due to the initial trouble I had with the speaker, I was never able to get the car on the road and drive around before the speaker broke completely. While this one still has some minor bleed thru with the car off and sitting still, there is not the incessant buzz as before and not even noticeable once the car is on and moving. The quality of the speaker is very satisfactory for the speaking voice of the TeleNav GPS. Where I can barely hear the voice from the Tilt speaker with the volume all the way up outside of the cradle, I was able to hear the directions quite clearly thru the built in speaker of the GPS cradle unit with the volume only approximately half way up on the Tilt. I don’t know about music but that is not a concern to me. The connectors are sturdier and they don’t wiggle on this unit. Thusly, the key issue has been resolved.
The only minor issue is that the suction cup mounting bracket still is a bit too snug to get off and on the cradle easily but a couple of passes with a small file resolved that issue and it is still snug but easier to get off and on.
In summary, I am now a “happy camper” and very appreciative of Justpal for taking the chance on sending me a new unit with no commitment on my part to give them a good review. They do have other Tilt desktop charging cradles and other accessories which I will order from them due to their outstanding customer service. I will be purchasing the charging cradle and a set of three of the combo pen and stylus that I have seen on well know sites for substantially more than Justpal charges.
Hope this helps others on their quest for a GPS cradle for their Tilt.
hello i bought 1 too so where do i get the version of this mount ? i would like to check it out ...
AL
you have a link?
their site does not show a cradle
LivinOne said:
you have a link?
their site does not show a cradle
Click to expand...
Click to collapse
Here is a link to the item in their eBay store.
http://cgi.ebay.com/Custom-Car-Moun...35193QQcmdZViewItemQQ_trksidZp1713.m153.l1262
It's $35.99 with $12.15 shipping which was fast. From the email I got from them this is the newer model that fits better - and the one they resent me does.
Here is the link to the search I did on the Tilt in their store.
http://search.stores.ebay.com/Justp...tpalQQfsooZ1QQfsopZ1QQsaselZ138177314QQsofpZ0
Hope this helps!
that looks great! I am gonna have to get one of those for my travels....
speaker not as good
Well, I used to have one. I bought it originally for my previous Hermes 8525. It does hold the device securely as it is made specifically for the device. But you cannot rely on the speaker function due to it being too close to the, so will hear static all the time, especially while the phone is charging.
I have one for my old Wizard. It came with an iBT bluetooth GPS for like 10 bucks. It fit great and charged great but the speaker never did work. I just did a chop job on it this week end and turned it into a really nice holder for my tilt. hacked off the crap at the bottom, fitted a usb to a charger, mounted to a vent and it's nice. I Just took some crapy pictures from my web cam to show it off before I realized I've got nowhere to post them. So, you'll have to just trust me, you're jealous.
Is there an audio-out port on the cradle that can be connected to any other speaker source? I cannot tell from the pictures. Thanks!
Just received mine. Kaiser fits securely, speaker works well (with 1 exception below), suction cup works well. 3 complaints if anyone has any idea how to solve them:
1 - Bounces up and down ALOT and is too long! Appears to be an aluminum tube with black plastic cover. Has anyone tried shortening it by a few inches? How does it connect on each end? Did that help with bounce?
2 - Kaiser fits very tight. Can be difficult to get out (but better than having it jump out on it's own). Does is loosen up over time?
3 - When Kaiser is in the cradle some sentences in TomTom get truncated, in particular the one that says "After 400 meters take left turn" now says only "After". Works fine out of cradle but truncates this verbiage while in cradle. Weird.
GGW69 said:
Just received mine. Kaiser fits securely, speaker works well (with 1 exception below), suction cup works well. 3 complaints if anyone has any idea how to solve them:
1 - Bounces up and down ALOT and is too long! Appears to be an aluminum tube with black plastic cover. Has anyone tried shortening it by a few inches? How does it connect on each end? Did that help with bounce?
2 - Kaiser fits very tight. Can be difficult to get out (but better than having it jump out on it's own). Does is loosen up over time?
3 - When Kaiser is in the cradle some sentences in TomTom get truncated, in particular the one that says "After 400 meters take left turn" now says only "After". Works fine out of cradle but truncates this verbiage while in cradle. Weird.
Click to expand...
Click to collapse
I have had mine now for a few weeks and still pleased with it. I can comment on the first two.
1. I bent the tube down so that it was tight against the dash and that helped quite a bit. I have a Matrix so the ride is not all that smooth so it still jars some but so does my butt.
2. It does slide in easier after a while. I can now get it out without an extreme amount of effort but it is still snug.
3. Dunno, don't use TomTom. I use Telenav. Just a comment on the two. I have a friend who sometimes brings her TT along and I do like the way that the Telenav announces the streets instead of just the turns. Other models of TT may do that but hers doesn't. (Well, I did comment anyhow on all three)

Touch Pro Case charger

Hey guys, I've googled this and had no luck. A friend of mine has purchased what I think is an ingenious little accessory. Essentially it is a snap on belt case/cradle for his phone with a battery attached to it. You pop the blackberry into the cradle/case (and it's about not obscenely large) and it charges the blackberry. At the end of the day, you take it home and charge the cradle)
I think this is an awesome alternative to having a huge battery attached to a phone. I would LOVE to have something like this for the touch pro, however have had no luck finding it.
I'm just wondering if anyone else has come across something similar for the TP.
Motorious said:
Hey guys, I've googled this and had no luck. A friend of mine has purchased what I think is an ingenious little accessory. Essentially it is a snap on belt case/cradle for his phone with a battery attached to it. You pop the blackberry into the cradle/case (and it's about not obscenely large) and it charges the blackberry. At the end of the day, you take it home and charge the cradle)
I think this is an awesome alternative to having a huge battery attached to a phone. I would LOVE to have something like this for the touch pro, however have had no luck finding it.
I'm just wondering if anyone else has come across something similar for the TP.
Click to expand...
Click to collapse
Could you make something like this with a mintyboost, penlight batteries (or button cells or a nine volt radio battery!) and an existing case? A thing like that is on my TODO list as soon as I get a round tuit. All my existing tuits are triangular.
Edit: The mintyboost thing could go in one of my fannypack pockets with a cable going to the phone. How much do a few rechargable penlight batteries weigh? Nothing.
http://www.ladyada.net/make/mintyboost/
Edit: And here's a rechargable version http://www.instructables.com/id/How-to-make-a-solar-iPodiPhone-charger-aka-Might
Bigger and bulkier, yes but would still be fannypackable <--IS THAT A WORD???
This would be very cool
Try this. A batterypack with a built-in charger
http://www.thepocketsolution.com/PSI-050/The+Ultimate+Charger.html
or one of these.
http://www.thepocketsolution.com/PSI-59336/Sprint+Touch+Pro+Solar+Panel+Charger.html

[Q] Odd "Vibration" When Charging

Something odd I noticed a week or so ago. When my tab is charging, if I run my finger lightly along any part of the metal case, there's a REALLY faint "vibration" or "tingle", reminiscent of the feeling you get when you put one of those 9V square batteries on your tongue.
If I disconnect the charger then it stops, so I figured there must be some kind of short in the tablet somewhere.
But I finally found my multimeter this morning and tested it. There is absolutely no current in the casing at all. 0.000 volts. 0.0000 amps. Nada. Zip.
So what the hell IS it? I don't think it's the internal vibrator as I can't hear anything. Is anyone else getting this? It's strongest around the middle of the device, around where the Acer logo is on the back, but can only be felt on the metal parts, not the glass...
It might be an electro magnetic induction current, and the plastic is insulating the metal from earth - you are then providing the earth to make the circuit.
Where did you measure from and to with the multimeter? Try case to earth on another power socket, or case to earth with your tongue (wet, very conductive) (wet fingers if you's scared.. LOL).
I tried all the ways I can think of, including those, but there's nothing I can pick up with my meter. Alas, my scope is broke.
My wife can't feel it at all, but my kids can so I'm positive I'm not imagining it. It's not there when unplugged from the charger, there when plugged in.
BTW, generally, water is a very poor conductor of electricity, especially through the tongue as saliva has a pH of 7.5, which will insulate rather than conduct. You need water with a pH of <5 or >9 for decent conductivity.
Don't worry, I can feel the same vibration with my HTC Desire (which has a metal case, too), funny enough not with my A500, though. Not everyone can feel it, which either means not every device has that effect or not everybody can feel it.
True, but it's still better than dry skin, especially finger print tipped fingers.
Fluffbutt said:
True, but it's still better than dry skin, especially finger print tipped fingers.
Click to expand...
Click to collapse
Nope. With wet fingers (saliva or tap water) I can't feel the vibration at all, with dry I can. This tells me it MUST be electrical, but I'm damned if I can get it to register on my meter.
BTW, though I've not done much in the last 20 years, I originally trained as a microelectronics engineer, so I do know what I'm doing. I've never seen this in a device that DIDN'T register some kind of current flowing through it...
I've always been pretty sensitive to tiny electrical currents, so it probably IS some kind of short that my fingers are picking up, but can't get through the anodised coating on the metal back for my meter to read it. I AM getting a tiny reading of 0.003722 volts on the bare metal in the dock port, but my fingers sure shouldn't be able to pick THAT up!
Still, with no readable value on a meter, there's no way I'll be able to return it as the store just won't believe me, so I guess I'll live with it and just check it periodically.
I have exact the same thing, when the A500 is charging and I'm touching the case, it is vibrating a little.
I got my A500 since friday. I registered same vibration during the first charging. I don´t know what to do with it....
E.
Yeah I noticed this too. The list of quirks with this tablet just seems to grow by the day
i have the same issue before, i changed the power adapter from Acer and the problem solve. Their report log show 'electrical leaking'
I truly don't doubt what you say.
I honestly would've though that wet skin would be better than dry or skin-oil skin. Weird.
See if you can get a infinite resistance reading between the metal shell part and the dock port (like you should). I also suggest a separate test of the charger unit for leakages.
Maybe also test the charger port and the dock port for max resistance, charger port and skin as well.
OK, it's probably not dangerous (well, maybe not now..), but it IS bloody interesting!!
FloatingFatMan said:
Nope. With wet fingers (saliva or tap water) I can't feel the vibration at all, with dry I can. This tells me it MUST be electrical, but I'm damned if I can get it to register on my meter.
BTW, though I've not done much in the last 20 years, I originally trained as a microelectronics engineer, so I do know what I'm doing. I've never seen this in a device that DIDN'T register some kind of current flowing through it...
I've always been pretty sensitive to tiny electrical currents, so it probably IS some kind of short that my fingers are picking up, but can't get through the anodised coating on the metal back for my meter to read it. I AM getting a tiny reading of 0.003722 volts on the bare metal in the dock port, but my fingers sure shouldn't be able to pick THAT up!
Still, with no readable value on a meter, there's no way I'll be able to return it as the store just won't believe me, so I guess I'll live with it and just check it periodically.
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Click to collapse
Fluffbutt said:
OK, it's probably not dangerous (well, maybe not now..), but it IS bloody interesting!!
Click to expand...
Click to collapse
I really doubt it's dangerous, but it does indeed sound like there's leakage current on OPs tab. I've had similar experiences with e.g. some PC cases and there the problem was easily solved by making sure the case is well-grounded. Also had a washing machine that did the same, but as there's water involved I had to check it out properly and it was indeed a defect unit and had to be thrown out.
I get the same, both on the case, and when i run my finger over the glass, makes it tingle slightly, unplug the charger and wherever i touch its gone. perhaps from the screen getting the full V/amps from the charger?
I'm glad not to be the only one experiencing this so called "electrical leaking".
But it seems I am the only one who actually enjoys this feeling on my fingertip. Don't you?
pintness said:
I'm glad not to be the only one experiencing this so called "electrical leaking".
But it seems I am the only one who actually enjoys this feeling on my fingertip. Don't you?
Click to expand...
Click to collapse
!!!!!!!
If you try another part of your anatomy on the screen, DON'T post the video!!
LOL!!
;->
I get the same vibration but on the bottom edge of my a500 .....strange.....
Sent from my XT720 using XDA App
lol
My advice would be to *not* lick / taste your a500 while it is charging
me too
The cases is hot with respecs to earth. The adapter needs replaced.
Mine dont do that.
Sent from my A500 using XDA Premium App
I noticed this too when I first got my A500. I don't notice it anymore because I always have it in the Folio Case.

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