Wiring Diagram - Motorola PDR 3500 Basic Service Manual

Wiring Diagram

68P81093C75-O
• VHF: 0.29 µV (-117.7 dBm)
• UHF: 0.43 µV (-114.4 dBm)
NOTE: For VHF and UHF stations only, refer to
5. Preselector Field Tuning Procedure in this
section, for procedures to tune the receiver
preselector.
Step 4. Note the receiver BER reading. The BER reading
should be 5% or less. If not, and if a duplexer is being
used, repeat the BER test, bypassing the duplexer. If
the BER is 5% or less after bypassing the duplexer, the
station frequencies do not match the duplexer
frequencies, or the duplexer-to-top panel cables are
faulty.
If the BER, as tested straight into the top panel, is
greater than 5%, tune the preselector and re-check the
BER reading. If a reading of 5%, or less, cannot be
achieved, replace the Receiver Module.
Step 5. This completes the Verifying Receiver Circuitry test
procedure. If all displays and measurements are
correct, the receiver circuitry may be considered to be
operating properly.
1. Remove test equipment.
2. Restore the station to normal service.
3. Return to the trouble shooting flow chart to resume
the troubleshooting sequence.
Please refer to Figure 10 for a conceptual line drawing of the
motherboard, modules, and other components set flat outside of the
chassis and properly interconnected.
Please refer to Figure 11 on page 25 for a detailed diagram of the
connections from the AC inlet connector to the power supply and
chassis ground.
September 27, 2000 9-23