!PLEASE! help w/ Kenwood PS 400M

[poundthepavement]

Hi all! New to diyaudio forum. I have a pair of Kenwood PS 400M amps that I got REALLY cheap because they were broken. Well, got them fixed but I believe the bias adjustment may have been altered. Needing the bias adjustment details to get 'em dialed back in. Any help at all would be GREATLY appreciated. Thanks, Chad.

 

[Perry Babin]

The service manual states that it should be set to 2.5mv DC across the emitter resistors but that seems a bit high. 1mv would likely be enough.

 

[poundthepavement]

Thank you very much. Is there somewhere I can view the service manual online that you know of? Again, thank you very much.

 

[Perry Babin]

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