• 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

Nakamichi cdc-4a intermittent distortion (Audio mute transistor identification)

I

igotstoknow

New Member
I have been working on a Nakamichi CDC-4A for intermittent distortion issues and am focusing on the audio mute transistors. Apparently, they are prone to failure and after reading about the symptoms, distortion and both channels being muted, I would like to find them and check them to replace or eliminate the issue. I ordered a copy of the schematic, and I am having trouble identifying them. I keep reading that they are most likely a pair of 2SC2878 transistors, but I cannot find them on any of the boards at all and they are not listed on the parts list in the schematic. I also read that they are typically located near the RCA output jacks but the transistors that are there don't come up as designed for the purpose of audio muting. Can anyone help me identify these by transistor number or part number that would be on the schematic?


Thank you
 
Register to hide this ad
You must log in or register to reply here.
Back
Top Bottom