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Conference 7.286::atarist

Title:Atari ST, TT, & Falcon
Notice:Please read note 1.0 and its replies before posting!
Moderator:FUNYET::ANDERSON
Created:Mon Apr 04 1988
Last Modified:Tue May 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1433
Total number of notes:10312

409.0. "Self-maintenance?" by PEOVAX::LEWIS (RONCO makes the best board popper...) Fri Mar 03 1989 14:18

    Does anyone have any information as to where I could get a schematic
    for my 1040ST?
    
    			Regards, Carl.
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409.1And propably anything else you'd ever needLEDDEV::WALLACEFri Mar 03 1989 15:585
    Best Electronics, (408)243-6950
    
    I don't have the address in front of me.
    
    	Ray
409.2Thanks Ray!PEOVAX::LEWISRONCO makes the best board popper...Fri Mar 03 1989 17:111
    
409.3< Diagrams question >PILOU::ANDERSENHm . This space is not to scale .Mon Mar 13 1989 07:5221
    More on self maintenance ...                           
    
    My mouse limps on the the left horizontal leg ...:-) 
    
    The question from me is if somebody from the diagrams can see the
    part nr.'s of these diodes/transistors  (xmit and recive) ?
    
    I have diagnosed it down to the phototransistor emitter/reciever
    looking through the "squared holes". I succeded in adjusting the
    vertical part which showed the same symptoms.
    
    I suspect that the "light source" gets burned out, over time and
    don't fit specifications (there should be a "mousepower off" button".
    

	����Martin
                                                               
    
    
    
    
409.4Can a floppy be re-aligned?CIM1NI::POWERSI Dream Of Wires - G. NumanTue Apr 18 1989 14:1511

     My floppy drive is having problems reading and writing.  I think that its
  alignment is no longer calibrated.  Is there typically a screw or something
  that I can tweak to get the heads back into alignment?  If there isn't, how
  does one re-align a floppy drive.  This drive is in a 1040st.

  thanks

  Bill Powers

409.5No hard facts, but..LEDDEV::WALLACEThu Apr 20 1989 11:0415
    I can't answer your question directly on how to align the heads
    but...
    
    I believe I've seen an allignment floppy available via mail order
    I have no idea how check/adjust the alignment even with the floppy.
    
    My floppy has gone flacky a couple of times and reseating all of
    the socketed chips in the ST has fixed the problem (good for a year or
    so).
    
    I assume you've tried cleaning the heads, if not it may be worth
    doing (even if it is not your problem).

    
    	Ray
409.6Try cleaning the heads firstMINDER::GILBERTNorth UK Region Appl&#039;n Centre @MCOMon Apr 24 1989 08:3513
    
    My ST refused to read disks one wet Sunday afternoon. All was fine
    after cleaning the head. I used a cotton bud, extended in length
    using a drinking straw, and dipped in medicinal alcohol. You can
    perform the operation via the disk slot, no need to disassemble.
    A torch helped identify what to clean.
    
    Of course, you could try it the easy way, buy a cleaner disk. Provided
    the shops are open and have some stock that is...
    
    BTW, I blame cheap disk media for the gunge.
    
     
409.7LEDS::ACCIARDIMon Apr 24 1989 11:3112
    
    Whoa!  I'd be real careful about sticking a cotton swap into a floppy
    drive to clean the heads.  The heads are bonded to a very thin steel
    diaphragm (about .003") that allows the head to gimbal.  It could be
    very easy to snag the head and destroy it, unless you have the hands of
    a brain surgeon.
    
    A cleaning disk is the way to go.
    
    Ed.
    
    
409.8Just so that there's no confusion :-)PRNSYS::LOMICKAJJeff LomickaMon Apr 24 1989 12:312
In the U.S. we use torches for welding iron bars and soldering plumbing
together, and flashlights for peeking into disk drive holes.
409.9Most Enlightening!MINDER::GILBERTNorth UK Region Appl&#039;n Centre @MCOTue Apr 25 1989 09:2112
    Sorry for my use of local dialect. I'm sure we in the UK will get
    our tongues around English properly one day. :-)
    
    Re .7:
    
    I don't rate as a Brain Surgeon (or much else some would say), but
    my disk drive survived. I did subsequently try to obtain a cleaner
    disk, but only found Tandy (=Radio Shack?) as a potential supplier.
    They didn't have any stock, but were pricing them at 13 pounds each.
    That's over 20 dollars for our colonial cousins.

    
409.10PRNSYS::LOMICKAJJeff LomickaTue Apr 25 1989 12:015
I was just amused at the picture in my mind of your using a four inch
long propane fuled flame to illuminate the inside of your computer.

I figured out pretty quickly what you meant.