Service manual for the Hi-Target HTS-420R Total Station covering disassembly, calibration procedures, and troubleshooting.
This document serves as a maintenance and service manual for the Hi-Target HTS-420R Total Station. It provides detailed instructions on the disassembly of main components, including the handle unit, display unit, EDM board, and mainboard. The guide also outlines specific maintenance operations such as long vial calibration, circular vial alignment, and telescope reticle alignment.
The value must be within the acceptable range of -30 to 30.
Check if the battery has low power, check if the battery cable is connected well, replace the screen unit and cable, or replace the mainboard.
Check if the firmware version is correct and upgrade if necessary, restore the parameters, or replace the mainboard.