DHowel1973

Is this one any good. https://www.rapidonline.com/unipolar-hall-switch-pic-h501-50-0097

I will dive this a do. Will swap it with the Gobo Wheel sensor and see if I then get a Gobo Error instaed of a color wheel fault.

Thanks for this. Yes I found a HAL506 but as you say they are discontinued. Will look for a SM451R.

Hi All, New to this forum so hope someone can help. I have purchased a second hand ROBE 250XT COLORSPOT. Have done the stripdown and clean as it was extremely dirty. Fitted a new lamp. The only error I keep getting is a COLORWHEEL ERROR. From looking at the service manual and the user manual it says that the colorwheel does not know where the wheel is and maybe a sensor issue. The magnet is present in the wheel and the distance to the sensor is approx 5mm. All wireing is ok and connections good. Can I assume it is a sensor issue and would need a new sensor? I have removed the MAG 4A which is the sensor in question but does anyone know what type of HALL EFFECT SENSOR it is?? I would be able just to replace the 3 pin sensor if I know what it is. Any help appreciatted.