Hello dear community,
I'm turning to you today because I got the above-mentioned amplifier as a gift today, it comes on briefly and shows "Protect" after 1-5 seconds.
As I have read, this is because a protection circuit in the amplifier responds due to overload.
Since I didn't connect any boxes for the time being, I can rule out that the cause of the error is external, a thread here reported the DE565, which displayed the same error due to which an IC was defective, and replacing it eliminated the error.
Would someone possibly have a circuit diagram of the amplifier? I would take a look and measure the voltage with a multimeter.
Since I've only had experience in soldering so far and have only replaced electrolytic capacitors or desoldered and cleaned pots, a few tips on using the multimeter would be really great, including where you should possibly measure first, I'm aware of the risks with opening a device with 220V.
Since I'm new to the forum, I'll introduce myself:
My name is eigl. Philip and I come from beautiful Weißwasser in Saxony, I am 21 years old and my hobbies are photography, computer hardware, web design or one or the other soldering work, I would like to include electronics in my new hobby, I would also like to gain experience here, too for the reason that I think that today far too much is thrown away pointlessly, although it is often only a component of little value that causes the defect, repairing it is really fun for me. Before his death, my father was also a trained TV/radio electronics technician and although he unfortunately couldn't teach me much, it's just kind of in our family's blood, with the flow *g*
Thank you very much for your help
Edit: Okay I found the circuit diagram myself
First look through it, the circuit diagram from my old Pioneer SA-420 was somehow easier
If the impedance of any of the speakers is below the rated impedance range indicated on the rear of the home audio device next to the speaker connections, the home audio device may enter the PROTECT mode. Raising the volume with a low impedance speaker will trigger the protection circuit.