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These boards are no longer available from Sony. What is the problem you are trying to solve? I have never needed to replace the entire board. One other option is to locate a "broken" unit from shop or Ebay and use the board from there.
If you can describe the problems, perhaps we can help to repair the existing board.
Is the noise audible through the speakers or is it a physical clicking directly from inside the receiver?
If the former, what source(s) do it and are they digital or analog?
It doesn't appear there is a fan so NO physical noises should emanate from the receiver. I'd suspect an arcing component or something electrical. THAT might be dangerous to the receiver or even a fire hazard. Get it looked at.
Hi, This problem is very common in this model the solution is to replace the fuse with improved one 10A 125V of type CES710A having part No.1-576-695-11. Remember that this fuse would be larger in size of earlier one so that you have to drill it first in the holder and adjust the fuse to a proper space of 1.4 drill bit. Do the changes and your product work fine. Thanks.
Sony has service centers in several areas of maryland. If you go to www.sonystyle.com and "Support" you can find one in your area. Hope this helps. If you can't locate one, I use to Live in MD. What area? post a comment and I can find a good svc center for you.
This is not a fuse problem. The rotect mesage indicates that the unit detected a problem and shutdonw the unit to prevent further damage. Disconnect the speaker wires and try turning on the system. If protect still occurs, there is an internal problem *usually shuorted output transistors) that will require service. If you can solder and wish to attempt the repair yourself, update this and I'll provide additional details and instructions.
I went through the amp/receiver and used small star washers on all the grounding screws I could find including the one securing the transformer, cleaned dust off all circuit boards, checked output transistors and fuses, all OK.
Re Assembled unit and it worked OK.
I will buy a fan and fan it to avoid sourcing heatsinks for the previusly suggested IC's.
Thanks for the technical help, sure solved my problem.
If you took all the speakers off the reciver then it still goes into protect, the reciver detects DC on the output lines. That means there is a short in the output stage of the amp. It could be an output device, or a diffencal Transistor. If you can trouble shoot solid state electronics then you should be able to find the faulty, but if not your experienced at electronic repair, am afraid it may cost more then the reciveris worth. Good Luck
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