Grundig 40VLE6142C, 40" LED LCD HD TV
Panel: Samsung LTA400HM13 with embedded LED driver
Backlight flashes once when powering on, then remains off while there's image on LCD panel and everything else works fine.
8mm (or 5/16") hex wrench needed to open back cover, first time I need to use this tool on a TV...
24V from PSU to inverter OK. Check LED driver output and it has 4 test points: three read 11V, while one reads 0,6V. Disconnecting LED cable, all outputs to 11V, so it seems I'll have a LED problem.
I'll report progress.
Panel: Samsung LTA400HM13 with embedded LED driver
Backlight flashes once when powering on, then remains off while there's image on LCD panel and everything else works fine.
8mm (or 5/16") hex wrench needed to open back cover, first time I need to use this tool on a TV...
24V from PSU to inverter OK. Check LED driver output and it has 4 test points: three read 11V, while one reads 0,6V. Disconnecting LED cable, all outputs to 11V, so it seems I'll have a LED problem.
I'll report progress.
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