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Topcon ES101 / ES Series Total Station Mainboard Repair
The Topcon ES series (ES101, ES102, ES103, ES105) are widely used reflectorless total stations known for their reliability. However, mainboard failures can occur after years of intensive field use. Our repair service addresses these issues with precision diagnostics and component-level repair techniques.
Typical ES Series Faults We Resolve
No Ranging (EDM Failure) — Laser emits but instrument does not compute or display distance measurements
Power-On Failure — Instrument completely dead or only shows brief flash on screen before shutting down
Angle Measurement Errors — Horizontal or vertical angle readings drift, jump, or show inconsistent values
Motor Drive Issues (ES Series Motorized) — Auto-tracking or motorized rotation not responding correctly
Touch Panel Failure — Touch screen unresponsive or calibrating incorrectly
Communication Port Problems — CF card slot, USB, or Bluetooth data transfer not functioning
Repair Methodology
Diagnostic Phase (1-2 Days) — Full inspection of mainboard using multimeter, oscilloscope, and thermal imaging to identify failed components or cold solder joints
Repair Phase (3-5 Days) — Precise replacement of faulty surface-mount components using professional hot-air rework station. We repair at component level to avoid unnecessary module replacement
Calibration & Verification (1 Day) — Post-repair calibration on our collimator bench: EDM baseline test, angle accuracy verification, compensator function check, and I-angle correction
Final Quality Check — Full functional test simulating field conditions before secure packaging and return
Why Choose Us for Topcon Repair
Genuine Topcon Diagnostic Tools — We use manufacturer-level diagnostic software for accurate fault identification
12-Month Warranty on all mainboard repairs
Free Firmware Update to latest compatible version
Cost-Effective Component Repair — Typically 40-60% less expensive than official service center module replacement
Express 48-Hour Service available for time-critical projects
Contact us with your ES series model and serial number for a free diagnostic consultation.
Hengyide Group is a group company combining with developing, researching and producing. Our group is located in Pudong Developing Zone, and has two subsidiary companies:Shanghai Hengyide Electronic Technology Co.,ltd and Mato Opto-electrical High-tech Company. Our company has researching center... Hengyide Group is a group company combining with developing, researching and producing. Our group is located in Pudong Developing Zone, and has two subsidiary companies:Shanghai Hengyide Electronic Technology Co.,ltd and Mato Opto-electrical High-tech Company. Our company has researching center...
