Judy,
Hope you find the fix for your board soon. Do you live down south in Hobart? I am up north in Devonport , but when I bought my Kn5000 all those years ago I went through Tony at Mc Canns Music in Hobart. He was keen with the Technics brand and played them himself. So, Have you had a talk with him at all? Just trying something ...... he may or may not help.

Allan