Hello,
I've inherited a few PowerBook 3400C laptops, two of which are working and one potentially repairable, though may be used as spare parts. All have power supplies but only one power supply actually works. All of the adapters appeared in good shape, so I disassembled one of them in hopes of figuring out what was wrong. However, I haven't had any success thus far and I'm unsure of the circuit design so I don't want to go poking at it too much and end up on the AC side.
I have tried different input AC cables but no matter the input, there is no output. I am attaching photos of the internals and hoping for some suggestions on where and what to test.
Thank you for your time.
I've inherited a few PowerBook 3400C laptops, two of which are working and one potentially repairable, though may be used as spare parts. All have power supplies but only one power supply actually works. All of the adapters appeared in good shape, so I disassembled one of them in hopes of figuring out what was wrong. However, I haven't had any success thus far and I'm unsure of the circuit design so I don't want to go poking at it too much and end up on the AC side.
I have tried different input AC cables but no matter the input, there is no output. I am attaching photos of the internals and hoping for some suggestions on where and what to test.
Thank you for your time.
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