Question about Sharp Audio Players & Recorders
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 this solution help you understand the problem :rate as fixya..
Posted on Jul 15, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 27, 2014 | Audio Players & Recorders
Apr 21, 2014 | Sherwood Audio Players & Recorders
Jan 23, 2014 | Denon AVR-2312CI
Dec 08, 2010 | Pioneer VSX-D711 Receiver
Nov 09, 2010 | Technics SA-AX6 Receiver
Sep 13, 2010 | Onkyo TX-SR606 Receiver
Sep 13, 2010 | Technics SA-DA10 Receiver
Jan 30, 2010 | Sony STR-DE345 Receiver
Nov 12, 2009 | Denon AVR-1603 Receiver
Jul 29, 2007 | Denon AVR-1603 Receiver
26 people viewed this question
Usually answered in minutes!