Hey guys. Not sure if this is the best place to post my question, or if there's a specific thread for troubleshooting, but I'll pay it anyway and you can let me know 😉. I have recently acquired the 60" version of this tv for free, and it is non functional. I'm not very good with electronic circuit boards, but there are no obvious defects (blown caps, burn marks, etc). I have a standby light, and when I turn the tv on, the power light with blink slowly and continuously, and the screen will flicker for a split second, then go blank for a few seconds (10ish), and then it will display HDMI 1 in one corner, and a symbol -:- in the other. At this point, the tv will become unresponsive. Pressing any button on the smart remote, or the spare standard remote I have has no effect. After about 20 or 30 seconds, the tv will power cycle in its own (you can hear a click) , starting the whole process over again. While it's on, the green light on the main board flashes as well. Any suggestions as to what to try/check next?
Thanks in advance.