Chapter 3
Theory of Operation
Focus 30/35 Service Manual 3 - 14 P/N 79000035_SM, Version 1.5
Service
Maintenance
Optical:
• Focusing and alignment of receiver fibre.
• Alignment Transmitter.
Electrical:
• Adjustments of the reference signal
• Adjustment of Receiver fibre to APD maximum
• Check greywedge motor
• Crosstalk check
• Signal/noise ratio check
• Distance measurement in Prism and DR mode
• Offset determination, and verification of EDM offset
Replacement of service parts
• Transmitter unit F30
• Receiver unit F30
• Reference greywedge foil
• Reference fibre
• Receiver fibre
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