Hi, Try the following:
1) Disconnect both the FDD and HDD: power on Do you see the blinking FDD icon and hear the startup bong or does the screen remain completely black ? If not screen: Check the bulb at the back of the Yoke: you should see it glow in the dark. Also check if the screen is static buy putting a flat small piece of paper against the screen and see if it sticks. If so, then the Flyback (and the monitor) is OK. If the screen appears OK and you still get no image on it then it likely - the logic board as you say the monitor and the HDD get power. - The PSU than powers the logic board: with a multimeter you can check the voltage on the connector that goes to the logic board. Let me know it you need the wiring diagram to test it: I have it somewhere but need to dig it up. 2) If you get the blinking FDD icon, then connect the FDD and power on again 3) If this still works, then connect the HDD and try again I do have one remark: you pulled the drive from a PowerMac 6100. If I'm not mistaken: the Mac OS installer checks at the beginning of the Install, when choosing for the "Easy Install", if it's a Mac 68K or PowerMac. It only installs the necessary OS for either 68K or PowerPC, not both of them unless you go in "Custom Install" and check "Install Mac OS for Every Mac" As for the Pram battery: it's the same in a Powermac 6100 but technically you don't need it. I have re-verified this with my own Mac Classic and it perfectly boots without the battery installed. Good Luck, Nico -----Oorspronkelijk bericht----- Van: [email protected] [mailto:[email protected]] Namens Christian Wacker Verzonden: zondag 26 april 2009 21:17 Aan: [email protected] Onderwerp: Re: Battery for Mac Classic Well... I would like to clear up a bunch of things. 1: the screen appears to get power, but it does not display an image. 2: the HDD does spin up, but won't read 3: The HDD was pulled from a perfectly fine install on a PowerMac 6100 with system 7.5.5 on it 4: The HDD is a 250mb 3.5" SCSI drive, with the same configuration to make it work in the PowerMac (SCSI ID 0) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
