Results 1 to 4 of 4

Thread: Famicom Disk System issues

  1. #1
    Insert Coin (Level 0) LaughingElfMan's Avatar
    Join Date
    Apr 2010
    Location
    Athens, GA
    Posts
    19
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default Famicom Disk System issues

    Hi all!
    I recently replaced the belt in my FDS, which went suspiciously smoothly. I was right to be suspicious.
    Now, the drive always thinks there's a disk inserted. Tries to read constantly as soon as it gets power.
    Did I break something? Can you think of anything I might have done that would cause that? Thanks for any help you can offer!
    What is a man? A miserable little pile of secrets!
    -Dracula

  2. #2
    Great Puma (Level 12) jb143's Avatar
    Join Date
    Nov 2007
    Location
    St. Louis
    Posts
    4,253
    Thanks Thanks Given 
    5
    Thanks Thanks Received 
    72
    Thanked in
    65 Posts

    Default

    I'm by no means an expert and have never worked on one of these, but I am familiar with electronics in general. But here's some things you can check.

    There should be a switch that gets activated when a disk is inserted. It's possible that it got stuck closed somehow. Maybe when putting everything back together. If it's not noticeably stuck, then you could try to read continuity to make sure it's working correctly.

    Good luck!
    "Game programmers are generally lazy individuals. That's right. It's true. Don't let anyone tell you otherwise. Since the dawn of computer games, game programmers have looked for shortcuts to coolness." Kurt Arnlund - Game programmer for Activision, Accolade...

  3. #3
    Strawberry (Level 2) Custom rank graphic
    FoxNtd's Avatar
    Join Date
    Mar 2010
    Location
    USA/米国
    Posts
    570
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    4
    Thanked in
    4 Posts

    Default



    This is the top of the drive, with the front of the unit facing the left side of the picture. On the very bottom of this picture you can see the disk ejection switch. The plastic housing itself has that L-shaped arm that throws a thin long black plastic lever down, which in turn closes the circuit of the brass plates to signal to the system that a disk card is inserted. You want to check what is going on here first. When there is no disk and the assembly is in empty/ejected position, that lever should be raised by itself under spring tension.

  4. #4
    Insert Coin (Level 0) LaughingElfMan's Avatar
    Join Date
    Apr 2010
    Location
    Athens, GA
    Posts
    19
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    The arm and switch look good. The housing raises and lowers, causing the arm to press the switch.
    I actually removed the plastic housing, hoping to find an obvious problem. No luck. Would any of the other switches be able to cause the issue?
    I've also noticed that the device will only work on battery power, so I suspect the voltage regulator needs replacing. That couldn't be related, could it?

Similar Threads

  1. Replies: 0
    Last Post: 07-14-2014, 10:48 AM
  2. Replies: 3
    Last Post: 11-16-2011, 02:16 AM
  3. WTB/WTTF - Famicom Disk System and/or Sharp Twin Famicom Turbo
    By LuffyDan in forum Buying and Selling
    Replies: 0
    Last Post: 03-15-2010, 08:01 AM
  4. Famicom and Famicom Disk System Games Galore!
    By DreamTR in forum Buying and Selling
    Replies: 4
    Last Post: 06-07-2007, 06:38 PM
  5. FS Boxed Famicom Disk System, AV Famicom, Cmp NES Games
    By greedostick in forum Buying and Selling
    Replies: 2
    Last Post: 11-14-2005, 11:19 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •