Troubleshooting - Motorola MCS 2000 Service Instructions Manual

Troubleshooting

and Repair
Section 3-1 -
Troubleshooting
(All Kits)
Revision B, 5/98
This chapter is divided into two sections: 3-1, Troubleshooting; and
3-2 Repair.
Section 3-1 provides troubleshooting charts for the receiver,
synthesizer, and power amplifier sections of the radio. The receiver,
synthesizer, and power amplifier sections of the radio are unique for
each frequency range. (Troubleshooting Charts for the overall radio
and for the sections of the radio that are common in design for all
frequency ranges (i.e., controller, power control, and control heads)
are provided in Volume 1 of this Service Manual, Motorola Publication
Number 68P81083C20.)
Section 3-2 provides a replacement procedure for the RF power Output
transistor (Q6505) used only in the 30-Watt version of the radio.
Troubleshooting information and troubleshooting Charts related to
the SECURENET Option for the radio are located in the SECURENET
Option Service Manual, Motorola Publication 68P81083C25.
Option Service Manual, Motorola Publication 68P81083C25.
This section contains the following troubleshooting charts for the
receiver, synthesizer, and transmitter sections of the radio.
NOTE: Troubleshooting charts 1-1 through
1-13 are located in Volume 1 of this
Service Manual, Motorola Publication
68P81083C20, because these
troubleshooting charts are common to
all models of the radio.
• Receiver:
- Troubleshooting Chart 2d-1, Receiver Front End - Page 25
- Troubleshooting Chart 2d-2, Receiver IF and Receiver Back
End - Page 26
• Synthesizer:
- Troubleshooting Chart 2d-3, Synthesizer Deviation - Page 27
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Troubleshooting and Repair 19