List/Index of TV schematic abbreviations and strategies

Cannot find anywhere a way to read an understand a Panasonic TV Schematic and block diagram, including abbreviations used and convention on the strategy to show components or block diagrams.schematics.

No problem at all with the basic components like resistors, capacitors, IC’s, etc, etc. But impossible to follow the thread of the diagrams and be unable to identify what some abbreviations mean. Also some symbols like a small circle with an horizontal line in the middle etc.

I am using a Service Manual for Panasonic Plasma TV Th-42PXU80 which is available on public domain (but I purchased from a paid service because I though they had something different)

Examples:

Peaks Lite2p

STB MCU

IFD OUT

SOS

FSTV +15V

DDC_IIC1

eyc,etc

Any idea where to read all these?

Thanks, Wilson

PS. Is it possible to attach small picture from my PC to these posts?