Cap upgrade Conion c100f then not working

[caution]

Those are switches inside the power jack that redirect ground depending on if you have AC or DC plugged in.
The upper switch moves when you plug in AC, so it redirects ground from the batteries and DC plug over to the transformer.
The lower switch moves when you insert a DC barrel plug, so it disconnects ground from the batteries.

The AC switch takes precedence over the DC switch, so if you happen to plug both AC and DC in, AC wins.

The AC switch is strictly a switch. The AC plug pushes down on a plastic piece attached to the switch.
The DC switch's moving part (pin 4) has two jobs: it's metallic, and creates the connection to ground against the side of the DC plug.
It also disconnects the ground connection to the batteries.

 

[keeney123]

Those are switches inside the power jack that redirect ground depending on if you have AC or DC plugged in.
The upper switch moves when you plug in AC, so it redirects ground from the batteries and DC plug over to the transformer.
The lower switch moves when you insert a DC barrel plug, so it disconnects ground from the batteries.

The AC switch takes precedence over the DC switch, so if you happen to plug both AC and DC in, AC wins.

The AC switch is strictly a switch. The AC plug pushes down on a plastic piece attached to the switch.
The DC switch's moving part (pin 4) has two jobs: it's metallic, and creates the connection to ground against the side of the DC plug.
It also disconnects the ground connection to the batteries.

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Thank you again Caution. I had no idea that the AC plug had a switch in it. I understood the external dc can have a pressure switch. I just did not expect the AC plug having a switch also. It makes sense now. One has to focus on the AC switch or the pin 1 and 2 connections. If it connects and has a resistance in the connection the return line will drop a voltage at that connection.