| brake2000 | Дата: Воскресенье, 27.09.2015, 18:08 | Сообщение # 1 |
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Статус:  | hi, from germany
i am down .. this is my 3rd Q5w and it is happend again.
My USB 2.0 port is no more working and my Batterie is empty in 2 hours and lowest light.
i can enable _USB via touch but it dosn´t work. yesterday was ok and next day was damage, that was 4 months ago.
i cant find anybody he can help me , this site is my last hope.
i think the usb port is overloaded, i had a mouse plugged in, and the
mouse was not new. maybe some wire had a conntact and a chip is burned
?!
my firs cowon usb damage ass well . i think ... he is goes damage because i have a HDD with A/C plugged in , with extern power .
i hope somebody can help me 
sorry for my bad english .
greez Norman
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| YDean | Дата: Воскресенье, 27.09.2015, 21:24 | Сообщение # 2 |
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Статус: | Hallo!
Sie können einige Schaltungen auf dem folgenden Link zu finden:
http://cowon.at.ua/forum/39-293-1
Ich denke, es ist ein Problem mit dem Chip U27.
Es ist nicht schwer, mit den entsprechenden Fähigkeiten zu ersetzen.
Dieser Chip hat einen klassische Kontakten.
Allerdings, wenn der Chip U32 verbrannt - das ist sehr schlecht - Sie benötigen einen Lötstation.
(Google translate)
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| brake2000 | Дата: Четверг, 01.10.2015, 15:06 | Сообщение # 3 |
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Статус: | Hello there,many thanks for your response.
on my first COWON I had a hard drive with external power connected .
and I think it's a little broke.
during my last COWON I had connected a broken mouse, the cables have already peeped out .
and I think that there has been a short-circuit ( damage )
There are only two possibilities ? which went something breaks ? The U27 or U 32
software can not cause this problem ?
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| YDean | Дата: Четверг, 01.10.2015, 20:34 | Сообщение # 4 |
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Статус: | The software can not solve this problem.
Search for radio amateur or service.
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| brake2000 | Дата: Суббота, 03.10.2015, 06:25 | Сообщение # 5 |
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Статус: | Thanks a lot for your help.
but why COWON has no protection installed for the surge of the USB port ?
on my laptop or PC it does not something given .
what is the difference?
(about baterie)
I think that the COWON thinks all the time that the USB port is on
and he needs more battery . ( its normal)
USB has been turned on , and is then blown and the sofware he thinks is on
and draws power .
if I can not fix the USB .
Is there a way that the software thinks usb por is not on . and gives power to the battery more ?
i hope somebody understand me 
(me and google translate)
greez Pl3x
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| YDean | Дата: Суббота, 03.10.2015, 09:35 | Сообщение # 6 |
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Статус: | I think the device is turned a chip U32 on via GPIO-controlled transistor, which also burned.
Possibly to input EN. (I didn't disassemble it thoroughly.)
Or direct form GPIO to EN, and U32 is burned and always draws the power.
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