SAAX7 Technics stereo receiver stops broadcasting after 20-30 min

Should like your unit is working fine unless this is constantly happening. If this is a constant thing then condenser coil if dirty,check thermostat setting

It has a power amp module failure
and these cost more to repair than normal
Buy a replacement

It chirped because the bearings were worn out, then it froze up and isn't moving any air. Get it replaced. DO NOT run the unit if it keeps overloading or you will have a bigger problem.

Power amp output IC have an overheat. Cool it down and restart at
low volume. Send your e-mail if this did solve your problem.

Power down,disconnect the speakers and power back up. If it still say's overload, it needs to go to service. If not, check your wires, connections, and speakers one by one to hunt down the problem and correct. Hope this helps

i hade the same problem with the same unit and fixed it my self.
turns out the chip that is screwed to the heat sink was blown, and the resister that controles the fan burnt as well.all i did is ,get a datasheet of the unit and toke if apart went to the parts store and bought what was needed. the chip that is screwed to the heat sink has a part number on it whitch if you cant find the same can be switched with equivilant chip (find a datasheet of chip).
then my fan would not run ,i notesed that the risister was shot , the resister is color code witch means the resisters values. its a prety big job since the reciever has to be almost completely taken apart but very worth while .its ben workin like new for about 4 years since the repair with no problems or isues. hope this helps ad good luke.

These units are designed to only run the fan when necessary. If the unit is overheating, there is a problem in the detection circuit. This is a relatively inexpensive repair. If you are getting overheating when running at a low volume, it suggests that the speakers are not matched to the amp. In other words, the amp is expecting an 8 ohm load and is being presented a lower ohm load. This makes the amp work harder and generates more heat. Check the speaker wires and make sure that they are not frayed or crossing in any manner. Also, verify that the rating of the speakers is correct.

Update this with what you find.

Thanks,
Dan

I had the same problem. As soon as the volume reached about 24db it would go into overload. I was able to fix it by soldering all the connections on the larger power module. The one connected the the heat sink. When I took it apart there where several solder points that had come loose.

Most of these problems are rooted in a failed power amp module.
I'm working on an older technics unit but with the same troubles.

Ratnesh, I have this same receiver and the fan only comes on at certain volume levels. Unfortunately I now live in an apartment and can very rarely listen to it that loud. I had the same problem for a little while until I thought about moving the receiver to the lowest shelf with nothing on top of it. This seems to have worked so far although it does still get quite warm. Good luck!