Red LED standby light flashes 6 times but doesn't work
This Plasma TV Model number PN50C450B1D is from 2010, so it's a bit old. Still trying to troubleshoot because I'm in college and want to try to fix instead of buy a new one. I've looked into possible causes like blown capacitors or burnt looking components, but don't see on the power supply board or the main board. Are there any foolproof steps or order of operations to rule things out and diagnose this problem? Thanks in advance!
Edit: photos.
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2.3千 
