Thanks to those that responded.
I noticed an inconsistency between my wiring which is based on the “Tonman Version” and the 3PDT wiring posted below. The Tonman Version wires the sleeves of the input and output jacks to left and right 3PDT ground pads of the 3PDT board, whereas the diagram posted below wires the sleeves of the input and output jacks to the respective non-T input and outputs of the main board.
Is this significant?
My current test results produce no output in effects mode, but output in bypass mode. I am ready to begin testing with my audio probe.
Thanks again in advance and Happy New Year to all !