Chapter 3
Theory of Operation
P/N 57150002, Revision 5.0 3 - 79 Trimble S, VX, SPS & RTS Service Manual
F
Tracklight
The Tracklight
®
is a visible guide light. It emits two flashing coloured lights, red and green. The
colours represents each side of the centre. The red and green lights enables the rod person to align
himself with the line of sight to the instrument.
Location of Tracklight
Fig. 3-71 Tracklight location
Block diagram
Fig. 3-72 Tracklight block diagram
Tracklight is connected to the SFC board which is connected to the IPC board.
Technical Specifications
Wavelength: Red, 645 nm / Green, 520 nm
Free aperture: 9 mm
Divergence: 7
Range 150 m
Tracklight
SFC board IPC board
Tracklight
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