Technical Notes

A collection of articles on various topics. Usually these will be notes written up after some research, with the intent of summarizing some results that could be interesting to a possibly small collection of curious people.

Also be sure to check out our YouTube channel for technical dives, repair tutorials, and more:

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LX200 Classic

LX200 Classic Capacitor Replacement

How to find and replace the 5 imperiled capacitors on the LX200 Classic

Hand Controller Communications

Byte-by-byte details of messages between the LX200 hand controller and telescope.

Determining CPU Software Version

How to determine the software version of the LX200.

DEC Cable Wiring Diagram

Schematic of the DEC wiring from front panel, through the fork, and up to encoder board.

LX5 Drive Electronics

Front Panel Schematic Dwg.

Schematic diagram of the wiring behind the LX5 front panel.

Base PCB Schematic Dwg.

Schematic diagram of the PCB in the base of the LX5.

Hand Controller Schematic Dwg.

Schematic diagram of the LX5 hand controller (keypad).