My PowerBook 180c is exhibiting symptoms I've not been able to determine the cause of. It powers up and makes the startup chime. The screen lights up like normal, but there is no Happy Mac icon nor is there a question mark. Instead, it just beeps once every few seconds. No four-tone or eight-tone error chord sequence. It's just a single beep. Any ideas as to the cause?
I have two potential donor machines if needed. The first potential donor powers up, makes the startup chime and sounds like it is booting, except the screen has static-y, wavy horizontal lines. The service guide I have suggests replacing the display, converter board, inverter board, converter-to-inverter cable, interconnect board, daughterboard or motherboard which doesn't exactly help narrow things down. The second potential donor is deader than a doornail. The DC/DC converter area smells (from the outside) like something electrical burned. There was no smoke when I initially tried to power it up. Upon disassembly, I don't see anything that looks burned or damaged so I don't know if this was previously repaired and the odor remains or what. (I bought this one used.) The interconnect cable was disconnected. I was hoping that was the problem, but after connecting it and putting it back together, it's still dead. No sign of life whatsoever.
My primary goal is getting my original PowerBook working, though it would be nice to get two working PowerBooks out of this trio. The original is the most important to me though, since it is the first computer I ever bought, so it'd be kind of nice to have it working again. It actually worked up until four years ago, when it stopped working in the middle of retrieving some old files. I initially thought the internal hard drive died, but that doesn't appear to be the case.
Next, I've read here that the caps for the LCD screen need to be replaced. Is there a parts listing for that anywhere, preferably with purchase links? I know enough to solder electronics together when I have the parts in hand along with instructions but trying to pick out the right capacitors and other components is generally the most challenging part.
Thanks!
I have two potential donor machines if needed. The first potential donor powers up, makes the startup chime and sounds like it is booting, except the screen has static-y, wavy horizontal lines. The service guide I have suggests replacing the display, converter board, inverter board, converter-to-inverter cable, interconnect board, daughterboard or motherboard which doesn't exactly help narrow things down. The second potential donor is deader than a doornail. The DC/DC converter area smells (from the outside) like something electrical burned. There was no smoke when I initially tried to power it up. Upon disassembly, I don't see anything that looks burned or damaged so I don't know if this was previously repaired and the odor remains or what. (I bought this one used.) The interconnect cable was disconnected. I was hoping that was the problem, but after connecting it and putting it back together, it's still dead. No sign of life whatsoever.
My primary goal is getting my original PowerBook working, though it would be nice to get two working PowerBooks out of this trio. The original is the most important to me though, since it is the first computer I ever bought, so it'd be kind of nice to have it working again. It actually worked up until four years ago, when it stopped working in the middle of retrieving some old files. I initially thought the internal hard drive died, but that doesn't appear to be the case.
Next, I've read here that the caps for the LCD screen need to be replaced. Is there a parts listing for that anywhere, preferably with purchase links? I know enough to solder electronics together when I have the parts in hand along with instructions but trying to pick out the right capacitors and other components is generally the most challenging part.
Thanks!
