[Q] Power on cover when charging

elrar2012

Member
Mar 4, 2012
13
2
0
Power on cover when charging,

I don't know if I use the correct words but when my TF701 is charging and I go over the cover with my fingers I feel a some tingling.
If I rotate the charger in the socket it's a bit else but still it's there.
When I use my TF101 charger I don't feel this at all.
Any else feel this and know a possible solution?

Elrar
 

aznmode

Senior Member
Jun 23, 2007
5,041
1,030
0
It's common on the tf700 as well as if the tablet is not fully grounded while charging.

Sent from my SGH-M919 using Tapatalk
 

mbegel

Member
May 27, 2010
43
18
28
Power on cover when charging,

I don't know if I use the correct words but when my TF701 is charging and I go over the cover with my fingers I feel a some tingling.
If I rotate the charger in the socket it's a bit else but still it's there.
When I use my TF101 charger I don't feel this at all.
Any else feel this and know a possible solution?

Elrar
I have this issue with my TF700 when in Europe but not when in the United States. It only happens when charging the keyboard dock. Since I use the same charger and don't have any issues with other electronic devices, I assume that it is related to a combination of the voltage and grounding in my dock.
 

lpdunwell

Senior Member
Jan 5, 2008
99
126
0
The Lost Woods
some details

Here's what I have noticed so far:

Infos:
- The TF101 was shipped with a different charger. On that one I have a set of plugs to match different sockets (sort of a travel adapter).
- I live in Switzerland, ungrounded connectors look a bit like this <- -> and can be used rotated. Connectors with PE look more like this <-.->, and cannot be rotated.
- In any test I used the docking, and tried with two identical power supplies

- The TF101 charger showed this effect from day one, but only in one orientation. Use it the other way round, problem gone.
- The TF30x charger shows this effect, but in both charger orientations, and slightly less noticeable
- The TF701 charger shows the same effect as with the TF30x

Let's swap chargers. (The cables are different, the chargers themselves, which generally are no more than 5V/15V CV, which switch from 5V to 15V when a tablet is detected are interchangeable).

This showed the effect is clearly caused by the chargers. It's safe to say there's different circuitry inside the different charger revisions.

My conclusion: If you want to get rid of this effect, try finding one of the old international chargers and use it with your TF701 cable.
What may work: Try an isolation transformer
Also worth a try: Aftermarket chargers

---------- Post added at 12:34 PM ---------- Previous post was at 12:17 PM ----------

I'm pretty sure this is called 'stray voltage', but not a problem.

as i can not post links, try this:
search google for 'noteboook tingle sensation', click the dell community link
also, wikipedia has an article about stray voltage (warning: technical)