• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

CA-1000 function circuit adjustment

ksclay

New Member
I have been working on my CA-1000 more. When trying to adjust the function board, I see mine is different than in the service manual. I have LC65101 rather than LC62854. The traces are actually different. I'm wondering if anyone has adjusted this one or knows of a different manual.

I was able to find what seems like the equivalent test points and adjusted to 27.5v.

Another question, perhaps unrelated: I saw in another post http://audiokarma.org/forums/index.php?threads/ca-1000-class-a-issues.686254/page-6 that in class A, the output transistor should be at 18Vdc and 48Vdc. I measured 20Vdc and 52Vdc. Does this seem ok? All of my settings are good: main 15V, mid point and idle current of the left and right main amp.

Overall, I think I'm getting good sound from this amp. I just want it to be adjusted properly.
 
Register to hide this ad
Back
Top Bottom