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Sir banjopickinginthebackgroundmaniacman . . . . . . .
I don't know who makes that connector, but I call them " hinge connectors".
And it is hard to open them . . .unless you know the methodolgy , but easy to mesh them back together in their reconnecting.
I found that they are possible to open in a very CONTROLLED manner, by the use of a right angle scratch awl.
In thinking of what YOU might have in your tool stable, I think that a banjo pick would be a total fail, BUT try using a conventional 1/16 or 1/8 inch size of Allen wrench instead.
The connectors "secret release point" is being that small rectangular white tab to the far left side of your connector.
Its being located just to the right of cluster of the pea green main power electrolytic, the FWB rectifier and almost right against the other white Molex family connector showing a red and black wire.
Take the long end of the wrench and do a thumb/index finger grip on that end and position the wrenches bend against the PCB proper such that the short portions end can then be be positioned under that "mystery" connectors tab.
Then you lever the wrench such that you can do a CONTROLLED lift under that tabs end.
It should then pop up and make a disconnect from its companion then you will see my hinge aspect..
If you can handle a claw hammer in the successful pulling of a nail . . . .you can DO this . . . now . .go . . ye forth and do - it - to - it.
73's de Edd