I found this manual to be complete in every detail. Besides the schematic it has a complete set of alignment instructions which are easy to understand. It also includes a complete parts list as well as an explanation of how the power supply and safety shutdown circuits operate. Even a schematic of the tuner is included.
The product was good and just what I needed, however I had moderate difficulty with the down load because the sight would not recognize my pass word. I was finally given a direct link to the manual and that worked.
It is an very good and clear scanned service manual.
Text excerpt from page 1 (click to view)
TX-28XD3 Service Manual
Safety Specifications Parts List Service Information Adjustments Self Check Service Hints Mechanical View Disassembly Location of Controls Waveforms PCB Views Schematic Diagrams Block Diagrams
Service Support Service and repair of this product is supported by Panasonic's LUCI interface. This interface provides a link between the TV and a standard PC to allow a number of diagnostic and control functions to be performed. For more details contact your local Panasonic company.