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  1. SDUBjed

    Powerbook 540c Dark Sreen

    Thank you for the reply. The PRAM has been reset. The video cable has been reseated. The dark video persists. The brightness will work going down, and back up with the controls but it just doesn't get very bright. Are there any electrolytic capacitors to replace on the 500 PB series? Does the backlight bulb fade?
  2. SDUBjed

    Powerbook 540c Dark Sreen

    I have a PB 540c with an active-matrix color display. Everything works but the screen is dark. The brightness buttons slightly make the brightness flicker when pressed but does not make the screen bright. I've read that I should replace the caps on the screen, which I've done on my PB 180 - but there are no electrolytic caps on the 520/540, correct? Should i have to replace the backlight bulb, if so, do we know of a common replacement model # that would work? Thanks!
  3. SDUBjed

    Mac Plus force SCSI ID for boot

    The "Startup Disk" app is not compatible with the Mac Plus. I have confirmed this to be true, and read it online, but I don't know exactly why it's true. Thank you.
  4. I want to force my Mac Plus to boot from a certain SCSI ID, where I have a chain that has multiple drives that contain system folders. I can't change the SCSI IDs of the drives due to other circumstances, so I want to force the Mac Plus to boot from a certain ID. As it is now, the Mac keeps booting from the wrong drive (the one with the larger ID #). Can I make a boot floppy that will tell the Plus to boot from a certain SCSI ID? Thanks!
  5. SDUBjed

    SCSI ID Selection at boot

    I cannot get my powerbook 540c (OS 7.5.5) to boot from a specific SCSI ID even when trying to manually select at boot (Command-Option-Shift-Delete-#). I have two different system drives on the same scsi chain, but it will always boot from the drive with the higher SCSI ID. If I manually change the drive IDs it will boot correctly, but this is inconvenient to accomplish as I use the drive on another machine that would need to be switched back every time. Can I manually set the boot SCSI ID in software? Thanks!
  6. SDUBjed

    SCSI2SD Mac Plus Issues

    I recently purchased a V5.0b SCSI2SD from Inertial Computing to be used in my Mac Plus. I cannot get the board to be recognized by a Win8 desktop. I've tried different USB ports on my computer, and different USB cables... The utility is always "Searching for device". Windows does not detect a new device. When plugged in at first, it blinks slow then quick and stops. I've tried to update the firmware, but still the utility cannot find the device ... "Searching for bootloader" the SCSI2SD is only being powered by the usb cable, either USB 2.0 or 3.0 have been tried. The board seems to just not be able to communicate via USB and I have no idea why. Thank you for any advice.
  7. SDUBjed

    Strange Frame Corrosion

    Strange corrosion on the case frame - thick white powdery surface you can see in the first picture around the CPU. White corrosion uniform to the whole frame.....thinking i'll need to completely strip it down and clean it... maybe there's a metal cleaner i can use? No spill damage I can see....HDD, RAM, and CPU tested good on another machine. Screen is dead. Keyboard is in Japanese I think?
  8. SDUBjed

    Apple II Plus Card Identification

    Very helpful, thank you both. I didn't remove the stickers but I will replace them - thanks!!
  9. I won an Apple II "Plus" on a goodwill auction recently for around ~85 total. I don't typically collect these machines, and the last time i used one i think i was in middle school. It came with a stack of cards that i'm looking to identify. In the 3rd picture i can see one of them is a 16kb ram card, one is a disk drive controller, one is a printer interface card and that's about all i know . I don't know what any of the cards are in the 2nd picture. The Novation card looks interesting: Thanks for any info!
  10. I read somewhere in this forum that it's possible to transplant the screen from a Duo 230 into PB 100. Duo 230 Screen Built-in Display: 9.1" Grayscale Native Resolution: 640x400 Details: 9.1" grayscale passive-matrix (4-bit, 16 grays) Supertwist LCD with a 640x400 native resolution. PB 100 Screen Built-in Display: 9.0" Monochrome Native Resolution: 640x400 Details: 9.0" monochrome passive-matrix (1-bit) Supertwist LCD. Looks like roughly the right size, and resolution is correct, but would this work? I'm assuming the wiring harness plug would not be compatible. This would be great if it worked as I have a PB 100 that has pink splotches all over it. Thanks!!
  11. SDUBjed

    Can you identify this PB Card?

    you guys got it, thanks. it was listed with a bunch of PB stuff so i assumed it was related. with the tip you gave me, i found a description of a similar card on ebay which matched my photo (note this is not the auction i'm bidding on):
  12. This is part of an auction I'm bidding on, but there is no info included in the auction, just this card in the picture:
  13. SDUBjed

    Upgrade 2000 RAM

    Thank you. Yes i was curious if there was a procedure for upgrading the ram, but replacing the ram is straight forward enough provided you have the skills and the ram chips available. I was more wondering if the ram had to be enabled with a resistor or a custom rom image. I saw mention of the process in a Newton FAQ here, if you search for "Abe Lee" for a DIY upgrade procure: Newton FAQ Which leads you to a dead link, found on the internet archive that gives the procedure, looks like you just solder it straight in: Abe Lee Upgrade (Wayback Machine) Thanks again, just need the ram chips now: "DRAM Chips(1Mwords X 16bit, 4K Refresh, 3.3V, EDO or FAST Page, 44pin Package type)"
  14. SDUBjed

    Upgrade 2000 RAM

    I've seen online in a few places that it might be possible to upgrade a MP2000 to a MP2100 though a 4mb ram upgrade. Is this possible and if so can you point me to any information about it? I'm assuming this does not include just replacing the mainboard because that would obviously be useless. thanks!
  15. SDUBjed

    40p SCSI to 50p SCSI

    I'd love to know how this worked out - were you successful? do you have any boards available? thank you this is a great idea!