Rohde & Schwarz SMB100A - Troubleshooting; Measuring Equipment and Accessories

R&S SMB Troubleshooting
1407.0806.82 3.7 E-6
Troubleshooting
The purpose of these troubleshooting instructions is to help to trace down malfunctions to board level.
The instrument can thus be made ready for use again by means of board replacement.
If error tracing doesn’t show clear results, we recommend that you ship your instrument to our experts in
the service centers (see address list) for module replacement and further error elimination. Some module
replacements involve calibration procedures requiring calibrated equipment and appropriate software.
DANGER
Danger of shock hazard
For module replacement, ensure that the instrument is switched off and disconnected
from the power supply by removing the plug from the AC and DC power connector.
Read all safety instructions at the beginning of this manual carefully before module
replacement!
NOTICE
Risk of damage to the boards
Be careful not to cause short circuits when measuring voltages at pins placed close
together!
The following utilities are provided in the signal generator for easy diagnosis:
• Internal selftest
• Internal diagnosis test points
• Internal adjustments
• Info line with error messages and history of messages
• Internal keyboard test
Note: When problems occur, first check whether any connections (cables, plug-in connections of
boards, etc) are damaged or wrongly connected.
Measuring Equipment and Accessories
Item
Type of equipment Specifications recommended Equipment
recommended
R&S
order No.
1 DC voltmeter R&S URE 0350.5315.02
2 Spectrum analyzer Frequency range 0 to 7 GHz R&S FSP 1164.4391.07
3 Adapting cable 1 m long
SMP-to-SMA connection
- 1129.8259.00
4 Oscilloscope 100 MHz TDS 220