Studio Color 575 Won't Strike

I've got 6 1997 Studio Colors 575 I got used. Lamp hours say 7000 something and lamp strikes say 3000 something. The total fixture hours are OVER. They've been sitting unused but powered on for probably years. Cleaned them up and I'm ready to go, except...

On all of them either F1 or F2 on the lamp board is blown. Now, HES says it's a 16A Fast or Ultra Fast blow...depenping on where on the site you read. But the board says 16A slow. Since I couldn't find either, I went with a 15A Fast. Figured it was safe enough and they must be some wiggle room right? Anyway, I mostly wanted to see the darned thing work. Replace the cover, turn it on and nothing. Look inside again and the new 15A fuse is fried. Somehow I'd let all the smoke out. Replace with another 15A but leave the cover off this time. Hit the power and the fuse lit up like a strobe lamp. It was a very short show but as least I had light, right? :18: Oh wait, it's supposed to be light on the outside.

Based on what I think I might be looking at (I'm hardly an electronics guy) it looks like power comes from the wall through the switch then through the RFI filter and straight on to the board. Looks to me like the filter could be bad but what else? And what do I do next?

Any help would be huge. And I gave the history in part to help troubleshoot and in part to solicit comments on what other damage I might still be looking at. By the way the Vers is 39E, it's a 575S plugged into a 120v/60Hz circuit, and the boards look mightly clean...no burns, exploded capacitors or dust.
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    It looks like I'm getting last of the LPS issues under control. I replaced some fuses and used the good LPS from another fixture to troubleshoot. The bad ones are headed for repair.

    Lotsa Studio Color questions here so thanks in advance...

    While cleaning the optics with the belts off, I noticed several bad stepper motors. Some were nearly frozen and others have a little too much resistance. Am I correct in that these cannot be repaired and should be replaced all 7 at a time?

    On other fixtures, the color wheels with the belts attached spin with a different feel. Some spin smooth while others "bump" along with the grooves in the belt. Which is normal? Is this a tension issue and if so, what is the proper tension. Some have a snug but flexible fit and others are just plain tight with little or no give.

    Also, is it normal for a new lamp, fresh from the box and cleaned with alcohol to smoke? The bad lamps that were in the fixtures before have a white ball in the center that appears to have melted to touch the outside glass. The smoking lamp looks like it's headed in this direction after less than 5 minutes of use.

    2 fixtures have pan issues. One moves through most of its range then grabs. The other will not move at all without manual assist. When they grab, they make a noise like the belts are rubbing against something...like the grooves or sprockets in the belts are being forced against something. But when I look inside, I just hear the noise. The belts are not moving at all. With the power off, the unit pans freely with no noise. What should I be looking for here?

    As a side issue, each working fixture seems to home such that the yoke is not parallel to the base. Is this normal? How do I correct this? I tried pan calibration on the menu but +/- 20 is not enough.

    The last question is about lubricating parts. Should I be re-lubing the color wheel spindles and if so with what? And are there any other parts on the Studio Color (of the Cybers) that need to be lubricated.
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  • 0
    It looks like I'm getting last of the LPS issues under control. I replaced some fuses and used the good LPS from another fixture to troubleshoot. The bad ones are headed for repair.

    Lotsa Studio Color questions here so thanks in advance...

    While cleaning the optics with the belts off, I noticed several bad stepper motors. Some were nearly frozen and others have a little too much resistance. Am I correct in that these cannot be repaired and should be replaced all 7 at a time?

    On other fixtures, the color wheels with the belts attached spin with a different feel. Some spin smooth while others "bump" along with the grooves in the belt. Which is normal? Is this a tension issue and if so, what is the proper tension. Some have a snug but flexible fit and others are just plain tight with little or no give.

    Also, is it normal for a new lamp, fresh from the box and cleaned with alcohol to smoke? The bad lamps that were in the fixtures before have a white ball in the center that appears to have melted to touch the outside glass. The smoking lamp looks like it's headed in this direction after less than 5 minutes of use.

    2 fixtures have pan issues. One moves through most of its range then grabs. The other will not move at all without manual assist. When they grab, they make a noise like the belts are rubbing against something...like the grooves or sprockets in the belts are being forced against something. But when I look inside, I just hear the noise. The belts are not moving at all. With the power off, the unit pans freely with no noise. What should I be looking for here?

    As a side issue, each working fixture seems to home such that the yoke is not parallel to the base. Is this normal? How do I correct this? I tried pan calibration on the menu but +/- 20 is not enough.

    The last question is about lubricating parts. Should I be re-lubing the color wheel spindles and if so with what? And are there any other parts on the Studio Color (of the Cybers) that need to be lubricated.
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