Motorola CP185 Basic Service Manual page 10

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5.5 Transmitter Alignment Options ...................................................................................................... 5-3
5.5.1 Transmit High Power Tuning ............................................................................................ 5-4
5.5.2 Transmit Low Power Tuning ............................................................................................. 5-5
5.5.3 Transmit Modulation Tuning ............................................................................................. 5-6
5.5.3.1
5.5.3.2
5.6 Receiver Tuning............................................................................................................................. 5-8
5.6.1 Receive 12.5 kHz-Band Normal Squelch Tuning.............................................................. 5-8
5.6.2 Receive 12.5 kHz-Band Tight Squelch Tuning ................................................................. 5-9
5.6.3 Receive 25 kHz-Band Normal Squelch Tuning............................................................... 5-10
5.6.4 Receive 25 kHz-Band Tight Squelch Tuning .................................................................. 5-11
5.7 Utilities ......................................................................................................................................... 5-12
5.7.1 Program Serial No. ......................................................................................................... 5-12
5.8 Front Panel Feature and Button Configuration Mode .................................................................. 5-12
5.8.1 Introduction ..................................................................................................................... 5-12
5.8.2 Entering Programming Mode .......................................................................................... 5-12
5.8.3 Exiting Programming Mode............................................................................................. 5-12
5.8.4 Accessing Front Panel Programming Mode Parameters ................................................ 5-12
5.8.5 Editing Front Panel Programming Mode Parameters ..................................................... 5-13
Chapter 6 Maintenance - CP185 ........................................................ 6-1
6.1 Introduction .................................................................................................................................... 6-1
6.2 Preventive Maintenance ................................................................................................................ 6-1
6.2.1 Inspection.......................................................................................................................... 6-1
6.2.2 Cleaning Procedures ........................................................................................................ 6-1
6.3 Safe Handling of CMOS and LDMOS Devices .............................................................................. 6-2
6.4 Disassembling and Reassembling the Radio - General................................................................ 6-3
6.4.1 Radio Disassembly - Detailed .......................................................................................... 6-4
6.4.1.1
6.4.1.2
6.4.1.3
6.4.1.4
6.4.2 Radio Reassembly - Detailed......................................................................................... 6-11
6.4.2.1
6.4.2.2
6.4.2.3
6.4.2.4
6.5 Torque List ................................................................................................................................... 6-14
6.6 Mechanical View and Parts List ................................................................................................... 6-15
6.6.1 CP185 View and Parts List ............................................................................................. 6-15
Chapter 7 Troubleshooting Tables ..................................................... 7-1
7.1 Error Codes.................................................................................................................................... 7-1
7.2 Troubleshooting Table for Receiver............................................................................................... 7-2
7.3 Troubleshooting Table for Transmitter........................................................................................... 7-3
Transmit 12.5 kHz Modulation Tuning ............................................................... 5-6
Transmit 25 kHz Modulation Tuning .................................................................. 5-7
Front Housing From Chassis Disassembly........................................................ 6-4
Chassis Assembly Disassembly ........................................................................ 6-7
Front Circuit Board, Display Module and Keypad Disassembly......................... 6-8
Speaker Disassembly ........................................................................................ 6-9
Speaker Reassembly....................................................................................... 6-11
Front Circuit Board, Display Module and Keypad Reassembly ....................... 6-11
Chassis Assembly Reassembly....................................................................... 6-12
Chassis and Front Housing Reassembly......................................................... 6-14
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