(Topic ID: 304303)

Atari superman blown fuses, not sure what to do next

By TronGuy

13 days ago



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  • 5 posts
  • 2 Pinsiders participating
  • Latest reply 6 days ago by PinballManiac40
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    #1 13 days ago

    I went to an acquaintances house to "shop" his superman. I ordered bulbs, and rubbers, and went over and cleaned it up and installed new rubbers/bulbs.

    The old rubbers were original and crunchy and crispy, haha. NOthing rubber about them.

    Anyway, I assumed the machine worked. It certainly powered on.

    After changing the rubbers I thought we'd play a couple of games. Only it wouldn't kick out a ball.

    A quick look through the gameshowed me several problems:

    Under the playfield the 2amp slo blo fuse was blown. Changed it, powered it up, it didn't blow again. Game still didn't play though.

    Went into the back box.
    The far right fuse was blown 3amp slo blo was in there. Somehow I didn't have 3amp slo blo so I put in a 3amp fast blow.

    Anyway it blew at power up 3 times.

    I noticed on the bottom row of the I/O board there is a row of about 15 transistors that seem to be very similar if not exactly the same.

    The 5th one over from the left was almost blown off of the board. It wasn't standing in it's oringal position (like the rest), and it looked like a trace may have been lifted/blown. Testing the transistors (whole row of them) in circuit, they all tested similar. Nothing seemed shorted. Even the one that was half blown off of the board with apparently bad trace(s).

    Anyway. Sometimes someone else has had an exact issue . THought I'd ask. I may need to just call someone else in to do an on-sight repair I am guessing though.

    #2 13 days ago
    Quoted from TronGuy:

    The 5th one over from the left was almost blown off of the board.

    Cut the transistor off close to the body of the part as you can so it will make it easy to remove the legs by heating them with a solder iron. Can actually install one later. Very good chance that coil is toast. Have you looked at them all? Any with black paper wrapper? With the transistor removed, you should be able to play the rest of the game minus the one coil.

    Quoted from TronGuy:

    The far right fuse was blown 3amp slo blo was in there. Somehow I didn't have 3amp slo blo so I put in a 3amp fast blow.

    If a slo-blo is meant to be there, fast blow will only last a couple of power ons, so get a slo-blo per the manual.

    1 week later
    #3 6 days ago

    Dropped a 3a slo blo in

    Cut off the xsistor

    Blew the 3amp fuse immediately at power up.

    #4 6 days ago

    Can you post a picture of that board?

    #5 6 days ago

    May want to test the rest of the transistors on that board with a meter to see if any others are shorted.

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