Question about Audio Players & Recorders

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My sons wharfedale wpc 286 portable cd/radio experienced a complete power failure. Checked the fuse in the plug and it was ok. Is their an internal fuse or could it be loose connection internally?

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  • david262 Jul 18, 2008

    Very Helpful, followed the advice and it's now working again.



    Thanks

  • Anonymous Mar 20, 2014

    The Plug fuse is good but could there be an internal fuse that may have gone. if so where is it?

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Cold solder issues - each component is soldered into small holes on the printed circuit board which in turn connects said component to the other components. Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected (hanging by a thread). When the receiver turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. Jarring the unit creates movement inside enough to re establish the contact, sometime good enough sometimes not enough.

Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".

Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....If i have helped,please click fixya.It is the only way i get paid for my work...

Good luck:

Posted on Jul 18, 2008

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