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bloodgood |
Posted: Thu Mar 11, 2010 10:02 pm Post subject: How to open Braun EP100 |
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1. Remove the transparent comb.
2. Remove the cutting mechanism by pressing the taps that sticks out on both sides just above the "blade".
3. Remove the blade cover by pressing the round metal pieces.
4. Use appropriate tool "Torx 10" to unscrew the small screws that's hidden beneath.
5. Use a flat screwdriver to dislodge the upper and lower parts.
6. When internal parts starts to drop out you're done.
After 4 years mine suffered from a worn out battery. ( Replace with similar capacity NiMh cell with soldering points )
I used it on mains power for another 4 years before replacing the battery.
After yet another year the build-in AC supply went dead.
( Probably because I used a high capacity NiMh as replacement. )
Almost 10 years isn't bad at all so I ended up buying a new EP100. |
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Guest |
Posted: Wed Feb 24, 2010 11:24 pm Post subject: Re: Braun EP100 - Battery Change or PSU error? |
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Anonymous wrote: |
Mine won't accept a charge, and even when I run it plugged in the battery is still dying, and the thing eventually comes to a stop. Can anyone help me figure out how to even open it up? |
bryman_88@yahoo.ie |
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Guest |
Posted: Wed Feb 24, 2010 11:20 pm Post subject: Re: Braun EP100 - Battery Change or PSU error? |
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Mine won't accept a charge, and even when I run it plugged in the battery is still dying, and the thing eventually comes to a stop. Can anyone help me figure out how to even open it up? |
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bloodgood |
Posted: Thu Oct 23, 2008 7:27 am Post subject: |
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Hi Minnie,
My Braun EP100 uses a mains cord plugged directly. ( No external pwr-supply. )
The circuits inside can be divided into 3 stages:
1. Switching supply ( Most certainly damaged )
2. Charging circuit ( hopefully not damaged )
3. Motor control ( simple 2 speed via resistor - working )
Do you have a newer EP100 with external supply or perhaps another model? |
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minnie |
Posted: Wed Oct 15, 2008 10:57 pm Post subject: |
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Have you taken a multi meter and checked the charger? In side post should be + and the out side ring should be -. |
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bloodgood |
Posted: Wed Oct 15, 2008 10:00 pm Post subject: |
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In my case a new battery didn't fix the problem. ( at least not after it discharged. )
I will go thru the pwr-supply to see what's wrong.
Hopefully the error lies in it's early stage.
This is also consistent with the behavior. ( Not running, even when plugged in. )
( Probably the common yellow alert: "Chinese 110V rated components in 230V gear!" )
Stay tuned. |
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MrGnome |
Posted: Mon Sep 22, 2008 10:13 am Post subject: Re: Braun EP100 - Battery Change or PSU error? |
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bloodgood wrote: |
Did the "new battery" fix your problem? |
Sorry I haven't tried it yet! Will do soon, and let you know! |
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bloodgood |
Posted: Fri Sep 19, 2008 2:45 pm Post subject: Braun EP100 - Battery Change or PSU error? |
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Hi MrGnome,
Thanks for your detailed description..
My Braun EP100 is 8 years old, but in mechanical great shape.
After 4 years the battery's capacity dropped beyond useless.
Until a week ago it was working with the cord attached.
Now it shows the same behavior as you describe.
I fear that one or more PSU components is failing.
Did the "new battery" fix your problem? |
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MrGnome |
Posted: Sun Apr 06, 2008 2:12 am Post subject: |
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Torbjörn,
Thank you. That was very important information. It seems the charger does NOT switch to charging mode. However there seems to be enough power in the cell to run the motor, when the motor is freed from the load of the clipping heads. I'll try to switch the cell! thank you!
However, I think it's strange that the machine does not run even with the power cord connected to an outlet. This is what baffles me. |
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torbjorn |
Posted: Sat Apr 05, 2008 8:19 pm Post subject: |
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Try temporarily connecting an ordinary 1,5 V dry cell instead of the NiMH cell and see if the unit powers up. (but don't try charging with that cell connected).
A common problem with NiMH (and NiCd) cells is that they can get short circuited after a deep discharge, in particular if the cell already is old and in bad condition. In some cases (for example, Black & Decker electric screwdrivers from the early nineties), there are badly designed chargers that overheat and fail if the battery has got a short. But i don't think Braun should make such mistakes.
However, there are also cases where the charger does not even switch charging on if the battery is too deeply discharged (or shorted). |
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