HELP! Luxman MA88 mono amplifiers, can't find service manual

ma88steve

New Member
Dec 18, 2015
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#1
I have a very nice pair of MA88 mono tube amplifiers that were made for the 70th anniversary of Luxman. I have an original owners manual that is in Japanese, I don't think it has the service information though. These amplifiers have adjustments for bias and input, but I would need specifications on the settings and test point locations. I would appreciate any help I can get, thanks!

Luxman MA-88.jpg
 
#2
Steve,

We sent a request through to Luxman in Japan, should have an answer for you in a day or so.

regards

Philip O'Hanlon
On A Higher Note
 

bonzo75

Member Sponsor
Feb 26, 2014
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#3
Steve,

We sent a request through to Luxman in Japan, should have an answer for you in a day or so.

regards

Philip O'Hanlon
On A Higher Note
Quick service
 
#4
Steve,

Here is the response from the factory:

"There are KT88 cathode resistors.
Please adjust volume in order to make this resistor's voltage depression 0.36V. "

I hope this is of help

regards

Philip
 

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