The LX200 Classics are fairly old now. A little maintenance can be worthwhile.
One of the most important items is the capacitor in the Controller. This is the one that can cause the biggest problem. If you think your controller is bad due to a capacitor burning out, that can be a problem if it melted the internal ribbon cable. If you open up your controller you can get an idea if it is damaged.
First remove the 4 phillips screws on the back of the control paddle. Inside you will see the back of the circuit board. Remove the 4 phillips screws I have highlighted. You can then partially separate the back circuit board, and you can see in my picture the replacement blue capacitor I installed in position C2. If the ribbon is not damaged, replacing C2 should be done. As you can see in my last picture, I put a piece of fiberglass between my replacement capacitor and ribbon for future protection.
If the ribbon cable above is melted from the old capacitor burning out, repair can be a problem. I do not know of anyone with a replacement ribbon cable. Naturally, the other capacitors on the motor and main circuit boards should be addressed.
How about a look inside the base. It does not take much to separate the forks and base to check on the gears and bearings. All you need are a couple of hex wrenches. Remove the center cover plate from between the forks. Then remove the hex bolt and washer in the valley. After that it is just a matter of pulling the 2 apart. My 8" is easy to do alone. Larger scopes may need 2 people.
Now you have access to both RA upper and lower bearings, RA main and worm gears. It makes it easy to clean and lubricate as needed. Gently lower forks back on spindle while rotating lightly to engage worm and main gear. The hex screw and washer should be snug, not too tight. Adjusting worm and main gear play to be done later.