Hi!
I have a PowerBook 230 with two power bricks. Last time I turned it on was half a year ago, just to see if it still worked before I trying to sell it locally. Then the condition was unchanged from before I put it in storage: all ok, but some flickering on the screen and vertical lines across the screen from white windows. No one was interested in buying. So after reading a lot on this forum about recapping, I thought I might as well give it a try. And of course it was long overdue: the printer port was almost loose from the PCB from corrosion.
Just for fun I also recapped one of the power supplies.
Sad thing is, now the PowerBook won’t turn on: there is no sign of life whatsoever. No sound, no smell nor smoke, just a faint hum from the recapped power supply. The original is dead quiet but leaves the 230 just as lifeless. Of course I don’t remember witch one I used last time it powdered up - or if I tried both.
So to the first question: I measure no voltage on either of the power supplies: nothing on the power plug on either, nothing on the pcb connector on the power supply I’ve opened up, and nothing on the connector on the 230 motherboard. There’s no current on the outside connectors on the power bricks either.
Is this normal? Shouldn’t there be 24V on some of the pins?
I find just som mV on the motherboard (don’t know where to look), but 2,5 - 3 volts on some of the pins on the expansion board for the power buttons when plugged in.
I have a PowerBook 230 with two power bricks. Last time I turned it on was half a year ago, just to see if it still worked before I trying to sell it locally. Then the condition was unchanged from before I put it in storage: all ok, but some flickering on the screen and vertical lines across the screen from white windows. No one was interested in buying. So after reading a lot on this forum about recapping, I thought I might as well give it a try. And of course it was long overdue: the printer port was almost loose from the PCB from corrosion.
Just for fun I also recapped one of the power supplies.
Sad thing is, now the PowerBook won’t turn on: there is no sign of life whatsoever. No sound, no smell nor smoke, just a faint hum from the recapped power supply. The original is dead quiet but leaves the 230 just as lifeless. Of course I don’t remember witch one I used last time it powdered up - or if I tried both.
So to the first question: I measure no voltage on either of the power supplies: nothing on the power plug on either, nothing on the pcb connector on the power supply I’ve opened up, and nothing on the connector on the 230 motherboard. There’s no current on the outside connectors on the power bricks either.
Is this normal? Shouldn’t there be 24V on some of the pins?
I find just som mV on the motherboard (don’t know where to look), but 2,5 - 3 volts on some of the pins on the expansion board for the power buttons when plugged in.