Very pleased with manual except that a few more details in the drawings might make the job (not yet done, tut-tut) easier. Should be adequate though. Actually I didn't have to pay for this anyway as I was given credit for another item that wasn't quite complete. Good service, then.
Very useful manuals, somewhere graphics not very clear!
Text excerpt from page 31 (click to view)
Main PCBs Trouble Diagnosis
A. When �No signal� in CVBS(RF, AV) 1) First check if other inputs are working -> if other inputs are not working, replace MAIN PCB 2) Checking waveforms with Color Bar Pattern(Using the oscilloscope) - Main TP(RF) : CC455, C102