Video to highlight the problem of repairing flat panel TV sets

This TV came in for repair with sound but the backlights were not lit , however further tests revealed the backlights were not faulty and it also highlights the problem repair engineers are faced with today , with no circuit diagram, no technical support from the manufactures, it it so easy to miss diagnose a problem and end up replacing the wrong part. Lets face it TV set makers don't want engineers fault finding to component level , this will not make them money ,what they really want is for customers to bin the faulty TV and buy a brand new one .