Studio Color 575 Low Voltage Supply

To download schematics go here:

www.highend.com/support/automated_luminaires/studiocolor575.asp

I think the board you are talking about is the motorpower supply (mounted on the side cover in the base of the fixture).

Best regards Roman

[quote=somethingbrite]
Also. any tips regarding the repair / reconditioning of stepper motors would be greatly appreciated.

Many thanks.

M

When they are worn out, replace them. There is no repair.:)
They are cheap and easy to get.

"They are cheap and easy to get"

I wish the owners of these particular fixtures thought the same way regarding the replacement/repair of worn out components.

Can anybody tell me what the "High Fail" components on these boards (motor power supply) might be?
(i.e. Diode, Bridge rectifier etc.)

I have a couple of these bad now, one of them definately has continuity where there should be none. (between Live in #3 and Filter return #4 at the bridge rectifier.) I'm pretty sure that the diodes at D1 and D2 are both fine, and I think this probably leaves the rectifier as a possible culprit but its a swine to remove.
Has anybody got any board level repair experience with the Motor Power Supply PCB?

I have 16 and maintain 50 or so around here. They are pretty easy to work on. One thing is a bit of a pain is you must gut the entire top module all the way down to replace the motors. After you do it 4 or so times it's a breeze. While you have it down feel all your motors to find any potential problems there before you re assemble. If it feels chunky when you rotate the shaft replace the motor.:) I always keep a MPS on hand although the LPS is more likely to fail every few years due to bad voltage. If you have a bad MPS send it in for repair.

The parts that are likely to fail are T1, D5 and REG1. I fixed lots of these boards by just replacing D5.