Or the service manual. Many US Service Manuals are at samsungparts.com
Shopjimmy.com has a phone number there you can call and ask your question too.
After replacing T con board on Samsung I received a faint negative type image. Prior to T con board install I had a dark blue image without any video. I've replaced the inverter board & power supply. Can a bad HDMI 4 port on main supply board cause the negative type video ? Any suggestions ? Thanks

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