I own an ETX 125 PE version that says “assembled in Mexico” on the lable. My problem is the encoder values do not keep up with the altitude movement of the scope while aligning and also when manual movement in the altitude/declination up - down direction when in max speed. Speed 8 works fine. I can align the scope when the controller is set to quiet slew which drops to speed 8. The azimuth/ right ascension works normal at max speed. The encoder has been cleaned. I am able to use the scope but wanted to know if there is a fix to this problem. Speed 8 is a bit slow when performing an alighnment. I can post a picture of the encoder board to show the version number. Thanks for the help.
The encoder board says “Etx125 c2000 Meade Instruments Corp. 15-4506-02 Rev D