We have one Studio Color that takes about 30 min before it starts to home the fixture and start the lamp. After that, it works fine. the light looks a little dim but the fixture works fine. What could be the problem?
What I have found to work was changing C1, C2, R1, and R2 on the logic card. Typically, I think that only the 20M resistor (R2 in this case) has drifted way off tolerance, but while I'm there, I typically do the entire oscillator, and the crystal too (X1) if I have one . . . It's such a pain to get the conformal schmeck off (which I think *causes* the problem over time) that I just do everything . . .
All parts are available from Mouser, and will set you back less than $2 . . .
Again, this assumes that you have valid power coming from the supply. If the display does nothing for a bit, the processor is likely not running, and I have had at least three fixtures that I have been able to get back to 100% stability with this repair (2x trackspot, 1x Cyber . . . but all have the same identical clock circuitry).
If the display *does* init, and looks normal, but no homing, then likely this isn't the issue.
What I have found to work was changing C1, C2, R1, and R2 on the logic card. Typically, I think that only the 20M resistor (R2 in this case) has drifted way off tolerance, but while I'm there, I typically do the entire oscillator, and the crystal too (X1) if I have one . . . It's such a pain to get the conformal schmeck off (which I think *causes* the problem over time) that I just do everything . . .
All parts are available from Mouser, and will set you back less than $2 . . .
Again, this assumes that you have valid power coming from the supply. If the display does nothing for a bit, the processor is likely not running, and I have had at least three fixtures that I have been able to get back to 100% stability with this repair (2x trackspot, 1x Cyber . . . but all have the same identical clock circuitry).
If the display *does* init, and looks normal, but no homing, then likely this isn't the issue.
