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Repair guides and support for full size headphones that encompass the entire ear, also known as circumaural headphones.

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Panasonic RP HD 305 Wont turn on, unless recently plugged into usb.

Panasonic RP HD 305 won’t turn on unless it has been recently plugged in. (last 1-2 mins). ( Power button does nothing )

My initial thought was a bad battery, but if turned on and connected to a bluetooth device it plays music for hours.

If i turn it on and let it sit without connecting it it eventually becomes unresponsive. I have tried a hard reset ( pairing mode, then holding + and _ volumes button at the same time for 5 seconds)

any idea what this could be?

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I think it’s a very natural habit, if your device is on and not connected to anything then it will shut down to save energy.

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The power button doesn't work unless it has been plugged in recently. Power button should be working

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Maybe there is a capacitor in series with the power button or something like that and it cannot hold his charge anymore, something shorting it and dissipate slowly his energy during that 1-2mins, have you tried to clean it?

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