P.A.M.S.
Technical Documentation
NME–2A
Troubleshooting Instructions
Page 5
Original 08/97
Troubleshooting Instructions
The purpose is to define fault block of the module and then find out the
broken component. The trouble shooting diagram has been planned so
that the fault, whatever it is, can be found by as simple measurements as
possible.
Required servicing equipment:
– PC for PCLocals
– Power supply (12 V 5 A)
– Digital multimeter
– Oscilloscope with 10:1 probes
– Spectrum analyzer (capable of 10 W input e.g. external attenuator)
– Signal generator
– Test SIM
– RF cables with BNC or N in the other end
– Modular cable
– RS232/M2BUS adapter DAU–2
– HP8922H
BB Troubleshooting Flow Diagrams
The baseband flow diagrams give you the overview of the blocks. The
purpose is that you proceed through the flow diagram so that, if your
answer is YES for the asked question, go straight to the next level, but if
your answer is NO, you have to go the sub–branch.
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