CHAMP ELECTRONICS -" THE VINTAGE VALVE AMP HOSPITAL"

NOTTINGHAM, ENGLAND

 

REPAIR OF A FENDER DE VILLE COMBO AMPLIFIER







Hi everyone. Not really a lot to say about this one. Simply a Fender De Ville 212 Hot-Rod combo, coming through the workshop with a badly crackling and intermittent input jack socket number one. Whilst the job on the one hand is very simple, on the other hand just look at the photos on how much has to be removed in order to do this repair!

This is a common occurrence on this model, plus a few other Fender models and other branded amps of same/similar layout/construction. What happens is simply that the input jack's retaining nut works loose, and then the constant insertion and removal of the jack plug slowly weakens the (now moving) jack socket pins in the printed circuit board. As "machine-flow" soldering doesn't apply as much solder as a "hand job", this wear simply ends up as a bad connecting "dry joint".

To anybody with this kind of PCB/jack socket set-up, just simply keep an eye on the nuts of the jack sockets, and if they come loose, tighten them back up very carefully so as not to strip the plastic thread on the sockets themselves. This will undoubtedly save you a 50 repair bill every now and then!!

Keep up the good playing! 

Cheers, John.




 













The jack socket pins on the circuit board that tend to come loose are marked on the above photo.





 

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