Luxman MB3045 biasing guide/help

[Bunno77]

Hello all and thanks in advance

I recently purchased a beautiful pair of Luxman MB3045 amps. They are running well but given the age and the previous history being unknown I would like to check the bias etc on them.

I have done a bit of a search online and thought I would come across a service manual, guide or similar on how to perform it but no such luck.

If anybody has the info or can put me in the right direction it would be greatly appreciated. I am a qualified electrician and have worked on voltages up to 330kv and have a healthy fear so I am aware of the danger.

Thanks

 

[jan.didden]

Very first hit on Google:

https://elektrotanya.com/luxman_mb-...plifier_sch.pdf/download.html#google_vignette

Jan

 

[Bunno77]

Thanks @jan.didden , I did see that.
On this single page available to download does this show the test points, what the measurements should be, the procedure?
Thanks again

 

[Bunno77]

This one looks more like it thanks to some help via Audiokarma
https://audiokarma.org/forums/index.php?threads/luxman-mb3045-biasing-guide-help.1058778/

https://elektrotanya.com/luxman_mb3045_with_kt-88_modification_manual.pdf/download.html#dl

 

[jan.didden]

Jan