I just posted that valuable comment so it wouldn't be overlooked. If you know what a bad solder joint looks like, check all the terminals in the connector. If you don't know what they look like, look for a tv repair shop that's still in business in your area. Anyone there can inspect them for you and show you any that are questionable. At my cousin's shop, he would touch up those connections for free if he wasn't busy with his head stuck in a customer's tv. You can also look for a community college with an electronics program. Any of the instructors can check the solder connections for you.
Be aware this is a two-sided circuit board, but typically if a solder connection is broken, it will show up on both sides. It seems the pins in the corners of the plug develop the broken connections most often.
Monday, September 28th, 2020 AT 8:41 PM