405. HDMI6. NetworkYesYesYesYesYesYesYesNo picture or sound is output.Cannot connect to InternetIs a contact part of HDMI JACK P3, P4 normal?Is there no damage around the contact where HDMIcable are inserted?Are there no bad soldering?Is there nothing wrong with the ETHER JACK P1 ofMain PCB?Is there no damage around the contact whereEthernet cable are inserted.Are there no bad solder joints?Replace the HDMI JACK.Replace the ETHER JACK.Is that the cable correctly inserted into the connectorXP1 8p of Main PCB?Is the set in "PURE DIRECT MODE" "Off"?Is that the cable correctly inserted into the connectorXP1 8p of Main PCB?To be inserted into the XP1 the "8p" cableSet the "PURE DIRECT MODE" "Off".To be inserted into the XP1 the 8p cable.Is that supplied from 5V 3pin, 4pin of XP1 of MainPCB?Is that is supplied from 5V 3pin, 4pin of XP1 of MainPCB?Refer to 2.LED blinking.Refer to 2.LED blinking.Replace Main PCBReplace Main PCB.NoNoNoNoNoNoNo