Question about Technics SA-AX540 Receiver

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Terrible sound I used this unit for around 3 years without a problem and then it sat in a storage unit for aprox one year. I just picked up my things from storage and went to hook up my JBL control 5 monitors to mess around with some sound and now when everything is connected I get zero sound up to about 40% volume and then start getting a little bass at that point. From 40% to 100% I get small amounts of bass and I can barely hear the highs and words. Along with the audio problems the light on the input selector knob has gone out although it allows me to still change between the different inputs. The problem affects all inputs in the same way, and when I turn the knob to change inputs I hear a POP sound through the speakers and the music will increase slightly in volume for a split second before going back to the way it currently is. Both speakers "A" and "B" have the problem, all inputs, and I have tried multiple speakers and CD players to test the problem. I took the cover off to see if it was something obvious, and dont see any loose solder points, and there isnt even much dust. It has been a great reciever and I really dont want to have to buy a new one, but if possible please tell me if the problem would cost more to fix than it would be worth. Thanks in advance for any help you can give me =D

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  • scott grant Jul 02, 2007

    I decided to take it apart a little further and see if there was anything behind the circut board that I can see is obviously wrong. Well, I found the problem and I think its pretty much the end of the reciever, but I wanted to ask and see if there's some way to fix it that I have just never heard of.

    The corner of the circut board is cracked completely off and it seperates about 4 of the solder lines (or whatever you call them) at the top and botom of the corner. The lines are too small for me to solder them back and fix it myself which is why I think the end is nigh =(

    thanks for the help, and if anyone has any sugestions please feel free.



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Maybe your tape monitor button is pushed or something along that line of thought. Check all your switches and buttons in front and back of the unit for proper position.

Posted on Jun 28, 2007


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