The file APR5003V-Part01_updated.pdf is a place to keep corrections and notes. The original file is being maintaied to keep valid the MD5 checksum and the integrity of the original scans of the printed Sony document. One should always refer to the UPDATED version of this (and other)files. --Richard L. Hess, Aurora, Ontario, Canada 2020-10-15: On page 6-19, Step 3, the Ground reference should be TP1 instead of TP2 checking the TIB schematic, TP2 is a digital data line, not ground Thanks to Mark Barry for finding this. 2020-10-15: Ran OCR on the file, so it is now searchable. I used Foxit Phantom.