I'm repairing an old TV with corrosion on the board. I'm having trouble reading the schematic from the manual. Here's the relevant section:
I have two questions:
Do the thick bars on one side of the capacitor and the base of the transistor indicate those are connected together? I'd tone it out but the board is heavily corroded and I'm unsure if they should be connected. I've also seen these bars on other parts of the board, but the components there are not rated anywhere near as high as C451. I feel like that risks high voltage backfeeding through the other parts of the circuit.
What kind of capacitor is C451, and should it be polarised? The BOM lists it as a pp cap which I understand to be non-polarised, but I can't find any key that tells me what the dot on the symbol means. Let me know if I can provide any further information. Thanks
As the other person said, the horizontal bars typically indicate some type of ground. This reference sheet for IEC 60617 calls it "Functional equipotential bonding; Functional bonding conductor; Functional bonding terminal"
That dot typically indicates polarity, though I never remember which side. The dot is often physically marked on the component package, though.
Thanks for that link, it'll be useful for me to look up other symbols