I am in the process of upgrading a Lite DAC-83, and I have seen an "unknown" circuit, which has its reference erased: it is located on the upper right corner of the attached photo:
Anyone knowing what is this circuit reference ?
More important: I am looking for the Service Manual in rder to understand what parts can be upgraded, but no way to find it, and no way to find the manufacturer website: any information on who is the manufacturer ??
Edited by Nounours - 10/9/12 at 12:49pm