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Finally i fixed my lsx. My creazy idea was right. I do it like on pics and it works fine few hour in closed case

Lsx is my first and last all in one. I have also kef IQ 70 + powernode+ nordost superflatline+ woofer kef and that play awesome.

Im sure problem is too high temperature near Q211. All parts looks good. I tried use heatsink, but that was really small. First i try to buy bigger heatsink. If its not gonna work, i mount dc/dc regulator. It have to work finally ;)

R411 4.8kohm. i try to check temperature but i have to get temp. Meter. I have creazy idea. If in ma case problem is dc regulator (its too hot) maybe i can do something like that on pictures?

Most strange thing is that - spekaer play few hour without problems but it must be like on picture

I check Q211 and pin 1-2 0.7v pin 1-3 0.7v pin 2-3 0.692v VOltage q211 Pin 1 20v work fine 9.5v blinking Pin 3 18.9 work fine 9v blinking U20 in 18.9v work fine 9v blinking U20 out 12.04v work fine 9v blinking Pin 3 and L236 have always satbile 30v I think problem is change 30V to 18V by...

Z203 was dirty. I don't know what was that but now looks good. C 436 looks good too. When i check z203 there was 0.7v and 2v on other side. Its not good i think? Also voltage 22v on start and 13 after 30 minutes?

I'm from Poland. Input voltage is 30v. I make photo tomorrow. I just closed speaker for test. I replace small cooler on BCP 56. It plays since half an hour. Well see what happens;) Update: test faild after 45 minutes blinking orange red, but ... Its a little bit better than before. I don't know...

Sorry for my english... I have same problem with my LSX. In service replaced L236 and C434, C435. Now i can play music about 10 minutes and blinking orange red. When i totally open speaker i can play few hours without problems. I see that q211 is very hot when i play music. Any ideas what should...