Input 1 for hdmi stopped working. Input 2 works

SOURCE: samsung un55b6000 hdmi input 1

Hi,

Unplug the unit from the outlet for 30 minutes and then re-plug it and then check if the symptoms still the same. If so, this is an indication of faulty I/O circuitry and video processor in the main board. This board is repairable only at the service center because the parts are surface mounted and quite sensitive. If you are going to DIY, I would advice you to replaced the entire mainboard rather than troubleshoot it because the cost is almost the same. Obtain the board from your local Samsung service center or online. Check the actual part no. of the mainboard on the white sticker on the board itself and then search it online.

Also, check if your unit is still under warranty/extended warranty period, if so avail it because the manufacturer will fix it for free. Opening the back cover will void the warranty.

Hope I helped you.
Have a nice day!
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