Motorola Timeport P8190, Руководство по обслуживанию

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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.
The measurements labeled on the service
diagrams are approximate values and may
vary slightly. These measurements are
dependent on the accuracy of the test
equipment.
It is strongly recommended that the test
equipment calibration schedule be fol-
lowed as stated by the manufacturer. RF
probes should be calibrated for each
frequency in which tests are going to be
performed.
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 R F, measured
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.
Service Diagrams - Section A Service Manual
Motorola Confidential Proprietary A1
Test Point Measurements
Introduction
Test Point Measurements