Concept HD1200 intermittent protection mode

[Perry Babin]

Did you see post #19?

 

[joselorenzo]

Did you see post #19?

Yes, I looked at the post # 19.


But the translation does not help me and I do not understand what I should do
Sorry

 

[Perry Babin]

Page 11:
https://bkpmedia.s3.amazonaws.com/downloads/manuals/en-us/2120_manual.pdf

 

[joselorenzo]

I Set all of the center 'cal' controls fully clockwise.

I also made new measurements

I use one tone signal of 150hz for pin 7

 

[Perry Babin]

From earlier, the pot should be a DC offset control.

I don't see any problems at this point. I think you'll have to reassemble the amp, clamp everything and see if you can make it malfunction. Pushing on various points of the board, heating, cooling various areas...

 

[joselorenzo]

The last thing I did was change the CD4013.
At the moment the failure is not repeated
I will submit the amplifier to test a few days