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Type: Posts; User: fatwizard

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  1. Replies
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    105

    The lube in the stepper motor dries up and can...

    The lube in the stepper motor dries up and can also cause the symptoms you describe. I apply a small amount of light oil, or WD40 to the point where the shaft protrudes from the stepper. I tip the...
  2. I have installed switches in several AT keyboards...

    I have installed switches in several AT keyboards that had a place for one, but it was omitted. This has worked on all but one to restore the XT protocol function. Worth a try. Just put a jumper in...
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    228

    You can get away with opening a 225 up, at least...

    You can get away with opening a 225 up, at least to a degree, but I would think the problem most likely lies with the disk surfaces instead of the heads.
  4. Replies
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    1,072

    I don't have this model drive, but the SCSI...

    I don't have this model drive, but the SCSI drives I do have from that era definitely make a sound when they come ready. They spin up, then a muttering or shuffling or winding sound of some kind, as...
  5. Replies
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    1,072

    Since you are going to try changing the drive's...

    Since you are going to try changing the drive's circuit board anyway, I would try just working all the connectors on the drive off and back on to see if the issue is just oxidation. I have had this...
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    249

    I can't get any dial-up devices to work on my...

    I can't get any dial-up devices to work on my cell based home phone. Not even faxes.
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    456

    Have you looked here?...

    Have you looked here?
    http://www.vogonsdrivers.com/index.php?catid=64&menustate=15,1
  8. If you can source an Atari power supply for the...

    If you can source an Atari power supply for the 400/800 series computers, they have a stout 9VAC transformer in them. The early Atari supplies were just 9VAC transformers. The DC power supply was...
  9. There is no motherboard battery in a Compaq...

    There is no motherboard battery in a Compaq portable 1.
  10. Replies
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    4,446

    0 to 4 heads is five heads. Shouldn't it be 0...

    0 to 4 heads is five heads. Shouldn't it be 0 to3? My money is on the Tandon drive being the problem, not the controller.
  11. Replies
    93
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    4,446

    I have a box of scrap Western Digital/Tandon 3.5"...

    I have a box of scrap Western Digital/Tandon 3.5" hard drives. They have not survived the years very well at all. Stiction is a problem with many of them. I have a couple of them that will work...
  12. Replies
    43
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    2,958

    I acquired a 1rst gen 5170 motherboard (512K...

    I acquired a 1rst gen 5170 motherboard (512K stacked chips/6 MHz) that worked fine, but I didn't have a 5170 case to put it in. Later I got my hands on a whole 5170, but it's motherboard was damaged...
  13. If you get the Portable I working, be prepared to...

    If you get the Portable I working, be prepared to replace all of the foam pads under the keyboard keys. I've yet to see one that didn't have rotted foam pads in the keyboard. I'll type OK at first,...
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    565

    With so many bad components, it might lighting...

    With so many bad components, it might lighting damage.
  15. Replies
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    985

    I have some ST-01 cards and have only used them...

    I have some ST-01 cards and have only used them in 8bit PCs, with no problems. I have never even tried one in an AT system. I have had lots of strange failures of the 50 conductor cables/connectors...
  16. I believe the audio output on a Compaq of that...

    I believe the audio output on a Compaq of that era had the amplifier in the computer as opposed to being in the speakers. I have a Presario 4660 I'm playing with now that has the amplifier built in...
  17. Replies
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    473

    Standard PC floppy drives are jumpered as DS1. ...

    Standard PC floppy drives are jumpered as DS1. In two drive setups, the twist in the cable is what swaps the drive assignments. Both drives set as DS1, the one before the twist is DS1, and the one...
  18. I'm not sure what that card is. I've never seen...

    I'm not sure what that card is. I've never seen one like it, nor can I find any info on it online.
  19. Replies
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    572

    I would like to recommend an extra step to the...

    I would like to recommend an extra step to the cleaning/lubricating regime for Tandon drives. I always let some light oil soak into the stepper motor around the spindle. Set the drive on it's side...
  20. The ST225 will spin up, then make a series of...

    The ST225 will spin up, then make a series of muttering sounds as it moves the heads toward track zero with a final sweep sound as it comes ready. If the drive is spinning up, but makes no sounds...
  21. Replies
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    2,228

    If your 800XL has it's main chips socketed, you...

    If your 800XL has it's main chips socketed, you should try re-seating all of them. If you are using the original Atari power supply it would be wise to check it as well.
  22. Replies
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    3,518

    My first computer of any kind was an Atari 800,...

    My first computer of any kind was an Atari 800, bought in 1982. I have since collected all of the US released 8bit models. A 400, 600 and 800XL, 1200XL, 65 and 130XE, and lastly the XEGS as well as...
  23. Replies
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    1,755

    Can you tell if the power supply fan starts? If...

    Can you tell if the power supply fan starts? If it has the full 640K of RAM, it will take about 40 seconds to finish POST before it will beep.
  24. Any chance you were in the CMOS setup and somehow...

    Any chance you were in the CMOS setup and somehow removed the entry for drive B:? I believe if the system thinks there is only one floppy drive it will access the A: drive when you ask for A: or B:....
  25. Replies
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    I believe the composite output depends on the RF...

    I believe the composite output depends on the RF modulator. The STs that did not have an RF modulator did not have composite video available. This, at least is true of the 1040 STf model I have,...
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