Trimble S - Laser pointer; Function description; Service; Maintenance

Chapter 3
Theory of Operation
Trimble S, VX, SPS & RTS Service Manual3 - 72 P/N 57150002, Revision 5.0
F
Laser pointer
Fig. 3-65 Laser pointer location
Function description
A specific transmitter diode is used as a laser pointer in DR300+ / DR PLUS instruments.
The laser pointer is aligned to the cross-hairs and can be adjusted in a horizontal and vertical position.
Service
Maintenance
Optical:
• Focusing and alignment of transmitter and receiver fibres
Electrical:
• Laser pointer alignment
• Adjustments of the reference signal and receiver diode amplification
• Crosstalk check
• Standard deviation check
• Offset determination, calibration of EDM and DR offset incl. close range calibration
Replacement of spare parts
• TPB board, transmitter board
• PRB board, receiver board
• Greywedge motor assembly
• Laser pointer (includes Tracker transmitter)