Mac Classic boot problem
Hi everyone, I'm new to the vintage Mac scene and have a Mac Classic here with an internal Quantum 40MB hard drive and 4MB of memory. When I first got it, everything booted and ran fine. It came with 6.0.7. Over about a week, I noticed apps and even the Finder crashing. It got progressively worse until I started getting the "disk with question mark" image on startup. So far, I have removed the drive and run SpinRite (from grc.com) on level 2 and level 4. Everything passed 100%, no errors. I have booted from internal ROM by holding CMD-OPT-O-X and sometimes the hard drive appears and other times it does not. I cleaned the internals and system board using a can of compressed air, but so far no water or chemicals. What should I do next? Thanks! -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
This is a Classic, so almost everything is surface mounted. I cleaned the board with QD Electronic Cleaner just to see, but that did not help. On Wednesday, March 2, 2016 at 11:42:16 AM UTC-6, Clark Martin wrote: > > Unplug and reseat the connections to the logicboard, especially the RAM. > The connections build up corrosion over time, replugging them cleans the > contacts. > > Sent from an iPhone, don't ask whose. > > On Mar 2, 2016, at 9:00 AM, Stephen Collins > wrote: > > Hi everyone, > > I'm new to the vintage Mac scene and have a Mac Classic here with an > internal Quantum 40MB hard drive and 4MB of memory. When I first got it, > everything booted and ran fine. It came with 6.0.7. Over about a week, I > noticed apps and even the Finder crashing. It got progressively worse until > I started getting the "disk with question mark" image on startup. > > So far, I have removed the drive and run SpinRite (from grc.com) on level > 2 and level 4. Everything passed 100%, no errors. I have booted from > internal ROM by holding CMD-OPT-O-X and sometimes the hard drive appears > and other times it does not. > > I cleaned the internals and system board using a can of compressed air, > but so far no water or chemicals. What should I do next? > > Thanks! > > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintag...@googlegroups.com > > To leave this group, send email to vintage-macs...@googlegroups.com > > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs...@googlegroups.com . > For more options, visit https://groups.google.com/d/optout. > > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Hmm, I was afraid that would be the recommendation. I'm comfortable with soldering through-hole mounted stuff but everything (except cpu) here is surface mounted. Any links to a guide on this? On Wednesday, March 2, 2016 at 11:36:17 AM UTC-6, Dylan McDermond wrote: > > > > On Mar 2, 2016, at 9:00 AM, Stephen Collins > wrote: > > > > I cleaned the internals and system board using a can of compressed air, > but so far no water or chemicals. What should I do next? > > Recap the logic board. If it’s never had the capacitors replaced, it needs > it. No question. > > - Dylan -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Can you help me choose the correct replacement caps? I assume Aluminum 47uf, 16V, Surface Mount. What else should I specify? Size? I am looking on digikey.com. On Wednesday, March 2, 2016 at 12:01:55 PM UTC-6, Dylan McDermond wrote: > > > > On Mar 2, 2016, at 9:56 AM, Stephen Collins > wrote: > > > > This is a Classic, so almost everything is surface mounted. I cleaned > the board with QD Electronic Cleaner just to see, but that did not help. > > Correct. Those metal-cased aluminum electrolytic leak all over the place. > At the least, they lose capacitance. At worst, they take out traces with > electrolyte. I order 47uf surface mount aluminum electrolytics by the > hundreds. > > - Dylan > > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Do you have a link for the capacitor? I'm new to surface mount soldering. Thanks! On Wednesday, March 2, 2016 at 2:41:46 PM UTC-6, Wesley wrote: > > Here's a post I made elsewhere about my method of doing it: > > > http://www.vintage-computer.com/vcforum/showthread.php?50961-SE-30-Re-cap&p=400201&highlight=#post400201 > > > If the link doesn't work, let me know and I can just re-post it here. > > As noted there, I'm a huge fan of the MLCC capacitors - they seem to be > much easier to work with soldering them into place, and they should last a > LONG time...and even if they don't, they won't leak! :-) > > Wesley > > > > On Wed, March 2, 2016 1:04 pm, Stephen Collins wrote: > > Hmm, I was afraid that would be the recommendation. I'm comfortable with > > soldering through-hole mounted stuff but everything (except cpu) here is > > surface mounted. Any links to a guide on this? > > > > > > On Wednesday, March 2, 2016 at 11:36:17 AM UTC-6, Dylan McDermond wrote: > > > >> > >> > >>> On Mar 2, 2016, at 9:00 AM, Stephen Collins >>> > >> > wrote: > >> > >>> > >>> I cleaned the internals and system board using a can of compressed > >>> air, > >> but so far no water or chemicals. What should I do next? > >> > >> Recap the logic board. If it’s never had the capacitors replaced, it > >> needs it. No question. > >> > >> - Dylan > >> > > > > -- > > -- > > - > > You received this message because you are a member of the Vintage Macs > > group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml > and > > our netiquette guide is at > > http://www.lowendmac.com/lists/netiquette.shtml > > To post to this group, send email to vintag...@googlegroups.com > > > To leave this group, send email to > > vintage-macs...@googlegroups.com For more options, visit > this > > group at http://groups.google.com/group/vintage-macs > > > > Support for older Macs: http://lowendmac.com/services/ > > --- > > You received this message because you are subscribed to the Google > Groups > > "Vintage Macs" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to vintage-macs...@googlegroups.com . For more > options, > > visit https://groups.google.com/d/optout. > > > > > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Update: I recently acquired a Floppy EMU from Steve Chamberlain over at http://www.bigmessowires.com. I connected it in hard drive mode on the DB-19 port. The machine runs System 6, apps and games flawlessly in this configuration with two exceptions: 1) As described above, the internal hard drive is missing most of the time, but will occasionally appear on bootup alongside the Floppy EMU drive. 2) No sound. I ask again, does this still sound like an issue that a recap will solve? I have pulled and tested the drive with SpinRite. It tested fine and the connectors look ok. I received my caps from digikey today, just thought I would run it be here one last time. Thanks! On Thursday, March 3, 2016 at 10:17:09 AM UTC-6, Jon Kettenhofen wrote: > > Hi Stephen, > > Not having hands-on, there are a number of possibilities and solutions. > > Can you boot from a floppy drive? Have any floppy tools? If you can put > your hands on an old FWB tools floppy set or some other floppy diagnostic > set, that would be a big help. > > After completing this email, I realized there are several possibilities > but the first thing you might look at is whether or not you formatted the > drive or in some way disturbed the boot sector. Second, it is possible you > are seeing a gradual failure of the power supply due to old capacitors. > > ** > > Do what we call re-seating the connections. It's possible that the > connectors have acquired some corrosion. This goes for any cards or > sub-assemblies commonly found in older computers. Unplugging and > re-plugging each (all) connector (one at a time to avoid confusion) will > sometimes fix a connection problem. Sometimes - but not always - seemingly > innocuous acts will make a problem disappear. > > More subtle problems can occur if there is any visible corrosion on the > circuit boards. Also, vibrations during shipping can cause weak (aka > "cold") solder joints to have invisible open circuits (i.e. broken > connections). Re-soldering a bad joint will fix the bad connection but the > trick is to spot the bad joint - a loupe or being severely near-sighted > will help, but having experience with cold solder joints is better. > > Let's hope it's not a bad circuit board or part. Some early computers had > poor quality capacitors in them. > > Finally, it could be that you failed to secure the hard drive connectors > properly and one of the connectors is loose. > > Hope that helps. > > On 03/02/2016 12:00 PM, Stephen Collins wrote: > > Hi everyone, > > I'm new to the vintage Mac scene and have a Mac Classic here with an > internal Quantum 40MB hard drive and 4MB of memory. When I first got it, > everything booted and ran fine. It came with 6.0.7. Over about a week, I > noticed apps and even the Finder crashing. It got progressively worse until > I started getting the "disk with question mark" image on startup. > > So far, I have removed the drive and run SpinRite (from grc.com) on level > 2 and level 4. Everything passed 100%, no errors. I have booted from > internal ROM by holding CMD-OPT-O-X and sometimes the hard drive appears > and other times it does not. > > I cleaned the internals and system board using a can of compressed air, > but so far no water or chemicals. What should I do next? > > Thanks! > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintag...@googlegroups.com > > To leave this group, send email to vintage-macs...@googlegroups.com > > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs...@googlegroups.com . > For more options, visit https://groups.google.com/d/optout. > > > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Ok will do. Not as nervous about the surface mount repair since I looked at Dave Jones' EEVlog video on the topic. Thanks for the help everyone. Fingers crossed! On Friday, March 4, 2016 at 10:41:42 AM UTC-6, Dylan McDermond wrote: > > > > On Mar 4, 2016, at 8:02 AM, Stephen Collins > wrote: > > 1) As described above, the internal hard drive is missing most of the > time, but will occasionally appear on bootup alongside the Floppy EMU > drive. 2) No sound. > > > > I ask again, does this still sound like an issue that a recap will > solve? I > > More than likely. Be sure to wash the board well to remove any dried > electrolyte and inspect for broken traces. > > - Dylan -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
I have inspected around the caps, and see no evidence of leakage. Regardless I think they are weak, and it's probably a matter of time. Here's the procedure I'm going with (via Wesley above). Capacitor replacement: - Grab cap with pliers, push down & twist - Clean area with isopropyl and q-tips - Add flux, remove legs with soldering iron - Clean again - Use braid to wick remaining solder on pad - Clean again - Flow solder onto 1st pad - Hold component in position and heat pad - Solder in the other side On Friday, March 4, 2016 at 10:57:24 AM UTC-6, Dylan McDermond wrote: > > > > On Mar 4, 2016, at 8:50 AM, Stephen Collins > wrote: > > > > Ok will do. Not as nervous about the surface mount repair since I looked > at Dave Jones' EEVlog video on the topic. Thanks for the help everyone. > Fingers crossed! > > Just be sure to CLEAN ti well. Not only the general surface but clean as > much crust from the pads as possible. Use a high percentage isopropyl or an > acetone/IPA mix. I like to tin the pads, place the cap on top, then heat > each lead until it sucks down to the pad. > > Here is a good picture of a leaked cap (C8) on an SE/30: > > http://www.applefool.com/applefool/Macintosh_SE_30_%28Soldered%29_files/Media/DSC06831/DSC06831.jpg > > > Here is a good picture of a replacement cap (C69) on an Quadra 840AV > > http://www.applefool.com/applefool/Quadra_840av_files/Media/DSC07047/DSC07047.jpg > > > - Dylan -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Well good news and bad news. I successfully replaced all the capacitors and cleaned the MB thoroughly. Sure enough, it fixed the sound issue. Bad news is still no internal hard drive. Last week, it would occasionally recognize on startup. Now it never does. I know the drive is good because it works fine in another machine. What should I try next? On Friday, March 4, 2016 at 10:41:42 AM UTC-6, Dylan McDermond wrote: > > > > On Mar 4, 2016, at 8:02 AM, Stephen Collins > wrote: > > 1) As described above, the internal hard drive is missing most of the > time, but will occasionally appear on bootup alongside the Floppy EMU > drive. 2) No sound. > > > > I ask again, does this still sound like an issue that a recap will > solve? I > > More than likely. Be sure to wash the board well to remove any dried > electrolyte and inspect for broken traces. > > - Dylan -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Should I be able to test with a multimeter and get 12V on the drive's power lead? On Wednesday, March 9, 2016 at 4:19:09 PM UTC-6, Notgoing Totellyou wrote: > > my guess is the 12v rail is shot... as that is the first to go because of > the bad caps on the ab. > Charles > > > > > Sent from the office of MacCaps.com > > MACCAPS.COM > 2 ROETHEL DRIVE > SUITE D > NOVI, MICHIGAN 48375 > UNITED STATES > > Thanks. > Charles Phillips > 248 325 8812 > > > > > > On Mar 9, 2016, at 5:15 PM, Stephen Collins wrote: > > Well good news and bad news. I successfully replaced all the capacitors > and cleaned the MB thoroughly. Sure enough, it fixed the sound issue. > > Bad news is still no internal hard drive. Last week, it would occasionally > recognize on startup. Now it never does. I know the drive is good because > it works fine in another machine. What should I try next? > > > On Friday, March 4, 2016 at 10:41:42 AM UTC-6, Dylan McDermond wrote: >> >> >> > On Mar 4, 2016, at 8:02 AM, Stephen Collins >> wrote: >> > 1) As described above, the internal hard drive is missing most of the >> time, but will occasionally appear on bootup alongside the Floppy EMU >> drive. 2) No sound. >> > >> > I ask again, does this still sound like an issue that a recap will >> solve? I >> >> More than likely. Be sure to wash the board well to remove any dried >> electrolyte and inspect for broken traces. >> >> - Dylan > > > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintag...@googlegroups.com > > To leave this group, send email to vintage-macs...@googlegroups.com > > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs...@googlegroups.com . > For more options, visit https://groups.google.com/d/optout. > > > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
So it's a 4 lead connector into the drive - Red, Brown, Black, Orange. The Red one reads 4.88V and the Orange one reads 11.72V. How does that sound? On Wednesday, March 9, 2016 at 4:22:39 PM UTC-6, Notgoing Totellyou wrote: > > yep, Get readings for the +5 and +12 > > > Sent from the office of MacCaps.com > > MACCAPS.COM > 2 ROETHEL DRIVE > SUITE D > NOVI, MICHIGAN 48375 > UNITED STATES > > Thanks. > Charles Phillips > 248 325 8812 > > > > > > On Mar 9, 2016, at 5:20 PM, Stephen Collins wrote: > > Should I be able to test with a multimeter and get 12V on the drive's > power lead? > > > On Wednesday, March 9, 2016 at 4:19:09 PM UTC-6, Notgoing Totellyou wrote: >> >> my guess is the 12v rail is shot... as that is the first to go because of >> the bad caps on the ab. >> Charles >> >> >> >> >> Sent from the office of MacCaps.com >> >> MACCAPS.COM >> 2 ROETHEL DRIVE >> SUITE D >> NOVI, MICHIGAN 48375 >> UNITED STATES >> >> Thanks. >> Charles Phillips >> 248 325 8812 >> >> >> >> >> >> On Mar 9, 2016, at 5:15 PM, Stephen Collins wrote: >> >> Well good news and bad news. I successfully replaced all the capacitors >> and cleaned the MB thoroughly. Sure enough, it fixed the sound issue. >> >> Bad news is still no internal hard drive. Last week, it would >> occasionally recognize on startup. Now it never does. I know the drive is >> good because it works fine in another machine. What should I try next? >> >> >> On Friday, March 4, 2016 at 10:41:42 AM UTC-6, Dylan McDermond wrote: >>> >>> >>> > On Mar 4, 2016, at 8:02 AM, Stephen Collins >>> wrote: >>> > 1) As described above, the internal hard drive is missing most of the >>> time, but will occasionally appear on bootup alongside the Floppy EMU >>> drive. 2) No sound. >>> > >>> > I ask again, does this still sound like an issue that a recap will >>> solve? I >>> >>> More than likely. Be sure to wash the board well to remove any dried >>> electrolyte and inspect for broken traces. >>> >>> - Dylan >> >> >> -- >> -- >> - >> You received this message because you are a member of the Vintage Macs >> group. >> The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our >> netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml >> To post to this group, send email to vintag...@googlegroups.com >> To leave this group, send email to vintage-macs...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/vintage-macs >> >> Support for older Macs: http://lowendmac.com/services/ >> --- >> You received this message because you are subscribed to the Google Groups >> "Vintage Macs" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to vintage-macs...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> >> >> > -- > -- > - > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintag...@googlegroups.com > > To leave this group, send email to vintage-macs...@googlegroups.com > > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs...@googlegroups.com . > For more options, visit https://groups.google.com/d/optout. > > > -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Mac Classic boot problem
Which ones should I focus on to replace, or just do them all? Not sure what you mean by a/b I assume that's the power supply. Thanks for all your input! -- -- - You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
