Hi folks,
Just got a Sharp LC32LD145K with sound but no backlight. Notice backlight uses just a pair of leads so guess all strips in series, although that represents rather a lot of volts
Checked voltage from 17IPS19-5 reading 25v where surprisingly the Black lead was positive. Tried a string tester and at 20m/a got a max reading of 17.5v.
Suspect a huge number of S/C diodes - Chris.