 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Mac Forum / General / Hardware / September 2008Macintosh Portable: Black screen
Until these last days, my Macintosh Portable had no problem, except the sound which was very quiet. Now there is only a black screen, and a regular noise of the hard disk. What can I do ? Thank you for your help The little Elfe > Until these last days, my Macintosh Portable had no problem, except the > sound which was very quiet. [quoted text clipped - 6 lines] > > The little Elfe Please do not multi-post. If you send the same message to multiple news groups one at a time, it forces the rest of us to download your message multiple times. Also, it means if someone replies to one of your posts in one news group, the other places you posted the message will not see that reply! This is known as "multi-posting". If you want to post the same thing to multiple news groups, include all of the news groups in a single post in the "Newsgroups" line, separated by commas, like so: Newsgroups: comp.sys.mac.system, comp.sys.mac.apps That way when someone replies to your post in one group, that reply is seen in all other news groups to which you sent the post. This is called "cross-posting" and is the proper way to do it.  SignatureSend responses to the relevant news group rather than to me, as E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR > Until these last days, my Macintosh Portable had no problem, except the > sound which was very quiet. > > Now there is only a black screen, and a regular noise of the hard disk. > > What can I do ? You failed to identify which model you have. For power-up issues like this, the first (and easiest) thing to do is reset the SMC (Intel machines) or the PMU (PPC machines). Go to the Support page at apple.com and search for "reset SMC" or "reset PMU", as appropriate. (There's only one way to reset a portable's SMC but multiple ways to reset the PMU - it depends on the model.) > > Until these last days, my Macintosh Portable had no problem, except the > > sound which was very quiet. [quoted text clipped - 4 lines] > > You failed to identify which model you have. Well, unless Macintosh Portable _is_ the model he has. I think that's pretty unlikely, though. SignatureI kill Google Groups posts. See http://improve-usenet.org for details. <http://designsbymike.net/shop/mac.cgi> Mac and geek T-shirts & gifts <http://designsbymike.net/shop/prius.cgi> Prius shirts/bumper stickers <http://designsbymike.net/shop/greet.cgi> Holiday cards with attitude > > > Until these last days, my Macintosh Portable had no problem, except the > > > sound which was very quiet. [quoted text clipped - 7 lines] > Well, unless Macintosh Portable _is_ the model he has. I think that's > pretty unlikely, though. Actually, in his multi-post to comp.sys.mac.portables, he stated it's model M5120, which is indeed the original Mac Portable. SignatureSend responses to the relevant news group rather than to me, as E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR > > > You failed to identify which model you have. > > [quoted text clipped - 3 lines] > Actually, in his multi-post to comp.sys.mac.portables, he stated it's > model M5120, which is indeed the original Mac Portable. Wow! I've never seen one of those up close and personal. SignatureI kill Google Groups posts. See http://improve-usenet.org for details. <http://designsbymike.net/shop/mac.cgi> Mac and geek T-shirts & gifts <http://designsbymike.net/shop/prius.cgi> Prius shirts/bumper stickers <http://designsbymike.net/shop/greet.cgi> Holiday cards with attitude > > > > You failed to identify which model you have. > > > [quoted text clipped - 5 lines] > > Wow! I've never seen one of those up close and personal. I saw one once. I'd really love to *have* one! Maybe one of these days... SignatureSend responses to the relevant news group rather than to me, as E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR >> > > > You failed to identify which model you have. >> >> > > Well, unless Macintosh Portable _is_ the model he has. I think that's pretty unlikely, though. >> > Actually, in his multi-post to comp.sys.mac.portables, he stated >> > it's model M5120, which is indeed the original Mac Portable. Sorry Jolly Roger, next time, I will know it for the next time. I think it is too late now to do it, because it create a new post. That's also right: I have a M5120. It does not want to boot from the floppy disk, as if it does not see it. I am also wondering whether there is a power failure from the chip managing the power. The little Elfe > > > > You failed to identify which model you have. > > > [quoted text clipped - 5 lines] > > Wow! I've never seen one of those up close and personal. I've got a dead one in my closet, it was the first Mac I owned (I got it used from an acquaintance who worked for Apple and got an employee discount). I find it difficult to believe that someone is still depending on a 20-year-old computer. If mine still worked it might be fun to start it up just for old time's sake, but that's about it. SignatureBarry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me *** *** PLEASE don't copy me on replies, I'll read them in the group *** > > > > > You failed to identify which model you have. > > > > [quoted text clipped - 13 lines] > 20-year-old computer. If mine still worked it might be fun to start it > up just for old time's sake, but that's about it. They are still quite useful if you ask me. I run a 24/7 web server on one of mine: <http://zippy.kicks-ass.org:9997> SignatureSend responses to the relevant news group rather than to me, as E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR >> > > > > You failed to identify which model you have. >> > > > [quoted text clipped - 19 lines] > > <http://zippy.kicks-ass.org:9997> The website looks and acts like it is 19 years old. > > They are still quite useful if you ask me. > > I run a 24/7 web server on one of mine: > > > > <http://zippy.kicks-ass.org:9997> > > The website looks and acts like it is 19 years old. Is that a problem for you? SignatureSend responses to the relevant news group rather than to me, as E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR >> Until these last days, my Macintosh Portable had no problem, except the >> sound which was very quiet. [quoted text clipped - 4 lines] > > You failed to identify which model you have. Well no. They said it was a "Mac Portable" and everyone knows that was the fifty pound very first portable Macintosh, from 1989. It was more or less a fast Mac SE built into a laptop case. ANd it suffered because little was done to make it use little current, so it was heavy because a heavy battery was needed to power it. This is not a sudden failure of a recent Mac, this is an almost twenty year old Mac that likely is suffering from old age. If they'd said "Mac laptop", then yes, they didn't specify the model. Michael > Until these last days, my Macintosh Portable had no problem, except the > sound which was very quiet. [quoted text clipped - 6 lines] > > The little Elfe I still have one of these kicking about somewhere, if I remember right, both the battery's MUST still be operational (Main and 9V backup) even if you are using it on the mains, otherwise it will not boot, I think there used to be a hack using a 9V pp3 battery and a diode (to stop the Mac from trying to charge it) that provided enough trickle power for it to boot on the mains. I re-built the battery pack on mine (3x 2V,2AH Cyclone lead acid cells). Ben. NB mine is the first release without the backlight and a 40MB (I think) hdd (yes MB not GB!!) Ben <SPAM.TRAP@SPAM.NET> wrote in news:oHcAk.130344$uW7.105375 @newsfe13.ams2: >> Until these last days, my Macintosh Portable had no problem, except the >> sound which was very quiet. [quoted text clipped - 18 lines] > NB mine is the first release without the backlight and a 40MB (I think) > hdd (yes MB not GB!!) Thank you Ben. In my case, it is the same model, M5120 (unfortunately, its case is not transparent). I connected directly on the plug of the backup 9V-battery, a power supply of 9V, 1500 mA But without diode and without the main battery pack. Therefore it could boot up. I will search on google what a 9V pp3 battery is. Do you think it is a power failure/Problem? How did you unsealed the battery pack ? Thank you for your help, The little Elfe > Ben <SPAM.TRAP@SPAM.NET> wrote in news:oHcAk.130344$uW7.105375 > @newsfe13.ams2: [quoted text clipped - 34 lines] > > The little Elfe It is several years since I used my portable, It sounds like you have the battery thing sorted OK (PP3 batteries are the standard small rectangular ones, I think that that is the type the backup normally uses). The battery pack can be opened by placing a table knife on the seam that runs round the case (about 1/4 inch below the top if I recall) and tapping it with a hammer, do this all round the case until it comes apart, the cells are still available from specialist suppliers. (I see that the current ones are 2.5AH, see: http://www.lowcostbatteries.com/product_p/hawk0860-0004.htm for some info) Check that the ones you get are the right physical size, before you buy them as things may have changed in the last 20 years. Some useful sites are listed below: http://www.applefritter.com/node/9864 http://discussions.apple.com/thread.jspa?messageID=2991592 http://members.aol.com/macportable/Portable.html/ http://www.vintagemacmuseum.com/vmm-powerbook.html http://members.aol.com/macportable/Battery.html/ http://members.aol.com/macportable/NoBoot.html/ Hope this helps, Ben. >>> I still have one of these kicking about somewhere, if I remember >>> right, both the battery's MUST still be operational (Main and 9V [quoted text clipped - 44 lines] > Hope this helps, > Ben. You're right, Ben, it helps. I knew " http://members.aol.com/macportable/...", but not applefritter and discussions.apple.com about "mac Portable". They said that using a 9V DC could "wreak havoc on the Power Management Unit." How can I know whether the Mitsubishi PMU, a resister or capacitor is dead? Could be an explanation, since I have a black screen, after switching on. Once again thanks for your help, The little Elfe |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2009 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.