Panasonic tx-L42e6b turning off

[andrews7523]

Hi I recently picked this tv up from ebay. The fault is it comes on then turns itself off. I thought this would be a simple main board fault but I've tried another and its doing the same so I then tried a different power supply because weirdly just before the tv goes off the backlights flicker but still no joy. I don't think the backlights will be T fault as I've tried the tv with them unplugged and still no joy. The last time I had this fault on a Panasonic I just reset it by holding down the volume and power button if I remember rightly but this won't work either

[dick_barton]

Re: Panasonic tx-L42e6b turning off

Flickering backlights are often, but not always, a sign of faulty led(s).

Since you have changed the mainboard and the power supply I think you need to provide the voltages at the led connections to see what is happening.

Best to use a multimeter with a min/max function if possible.