Service Diagrams - Motorola StarTAC 3000 Service Manual

Service Diagrams - Section B
StarTAC 3000
Cellular Subscriber Group

Service Diagrams

The service diagrams were carefully
prepared to allow a Motorola certified tech-
nician to easily troubleshoot cellular phone
failures. Our professional staff provided
directional labels, color coded traces,
measurement values and other guidelines to
help a technician troubleshoot a cellular
phone with speed and accuracy.
We worked hard in trying to provide the best
service diagrams, therefore, to avoid clut-
tered diagrams, we excluded some compo-
nents from the service diagrams. Our
professional staff carefully selected to
excluded components that are unlikely to
fail.
Test Point Measurements
The measurements labeled on the service
diagrams are approximate values and may
vary slightly. These measurements are
dependent on the accuracy of the test equip-
ment. We suggest that the test equipment
calibration schedule be followed as stated by
the manufacturer.
The types of probes used will also affect
measurement values. Test probes and cables
should be tested for RF losses and loose
connections.
Because of the sensitivity of RF, measure
readings will be greatly affected if they're
taken in certain locations. To get the most
accurate readings, take measurements
nearest to the labeled measurement on the
service diagram.
© 1998 Motorola, Inc. B-1