Hello guys, this is my very first post and I really love this forum! So I recently got a Powerbook 170 that seems to be in great cosmetic condition for $20. The seller said that the computer won't power on. I took it home and tried to turn it on by pressing the power button and of course it did not work. I measured the output from the power adapter brick and it shows nothing so its dead. I then ordered a 7.5V power adapter and tried it on the powerbook but it still won't power on - the laptop looks utterly dead. To my surprise, the battery can still hold charge.
I replaced the PRAM battery, tried to reset the battery management memory by holding both reset buttons for 30 seconds - none of them helped. So I completely torn it down and did a careful inspection on the PCB. I didn't really see any burned trace or noticeable blown capacitors. The fuse also measures okay. The only thing that I noticed abnormal is a resistor. It is R160 on the PCB. Definitely looks different from other resistors. It measures about 283ohms. Does anybody know the right resistance for it? If anybody can share a picture of it, that would be greatly appreciated.
I replaced the PRAM battery, tried to reset the battery management memory by holding both reset buttons for 30 seconds - none of them helped. So I completely torn it down and did a careful inspection on the PCB. I didn't really see any burned trace or noticeable blown capacitors. The fuse also measures okay. The only thing that I noticed abnormal is a resistor. It is R160 on the PCB. Definitely looks different from other resistors. It measures about 283ohms. Does anybody know the right resistance for it? If anybody can share a picture of it, that would be greatly appreciated.
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