Motorola CP185 - Page 10

vi Table of Contents
5.4.1 Initial Test Equipment Control Settings ............................................................................. 5-3
5.5 Transmitter Alignment Options ...................................................................................................... 5-4
5.5.1 Transmit High Power Tuning ............................................................................................ 5-5
5.5.2 Transmit Low Power Tuning ............................................................................................. 5-5
5.5.3 Transmit Modulation Tuning ............................................................................................. 5-6
5.5.3.1 Service Monitor Setting...................................................................................... 5-6
5.5.3.2 Transmit 12.5 kHz Modulation Tuning ............................................................... 5-8
5.5.3.3 Transmit 25 kHz Modulation Tuning .................................................................. 5-9
5.6 Transmit MDC Signaling System Modulation Tuning .................................................................. 5-10
5.6.1 Service Monitor Setting...................................................................................................5-10
5.6.2 Transmit MDC Signaling System 12.5 kHz Modulation Tuning ......................................5-11
5.6.3 Transmit MDC Signaling System 25 kHz Modulation Tuning ......................................... 5-12
5.7 Receiver Tuning........................................................................................................................... 5-12
5.7.1 Service Monitor Setting...................................................................................................5-12
5.7.2 Receive 12.5 kHz-Band Normal Squelch Tuning............................................................ 5-14
5.7.3 Receive 12.5 kHz-Band Tight Squelch Tuning ...............................................................5-14
5.7.4 Receive 25 kHz-Band Normal Squelch Tuning............................................................... 5-15
5.7.5 Receive 25 kHz-Band Tight Squelch Tuning .................................................................. 5-16
5.8 Utilities ......................................................................................................................................... 5-17
5.8.1 Program Serial No. .........................................................................................................5-17
5.9 Front Panel Feature and Button Configuration Mode (Keypad Models Only).............................. 5-18
5.9.1 Introduction ..................................................................................................................... 5-18
5.9.2 Entering Programming Mode .......................................................................................... 5-18
5.9.3 Exiting Programming Mode............................................................................................. 5-18
5.9.4 Accessing Front Panel Programming Mode Parameters................................................ 5-18
5.9.5 Editing Front Panel Programming Mode Parameters ..................................................... 5-19
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 Front Housing From Chassis Disassembly........................................................ 6-4
6.4.1.2 Chassis Assembly Disassembly ........................................................................ 6-7
6.4.1.3 Front Circuit Board, Display Module and Keypad Disassembly......................... 6-8
6.4.1.4 Speaker Disassembly ........................................................................................ 6-9
6.4.2 Radio Reassembly – Detailed......................................................................................... 6-11
6.4.2.1 Speaker Reassembly....................................................................................... 6-11
6.4.2.2 Front Circuit Board, Display Module and Keypad Reassembly ....................... 6-11
6.4.2.3 Chassis Assembly Reassembly....................................................................... 6-12
6.4.2.4 Chassis and Front Housing Reassembly......................................................... 6-14
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 Maintenance – CP185 ......................................................... 7-1
7.1 Introduction .................................................................................................................................... 7-1
7.2 Preventive Maintenance ................................................................................................................ 7-1