Motorola CP185 Series User manual

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Manual No.:68007024004
Fax to: 6-04-6194467
The Technical Publications Coordinator,
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R&D Department,
Motorola Penang.
Complete Incomplete Correct Incorrect Clear Confusing Size Adequate Size Too Small Not Covered in this Manual
Disassembly
Procedures
Alignment
Procedures
Exploded
Views
Schematic
Diagrams
Circuit Board
Details
Electrical Parts
List
Exploded View
Parts List

i
COPYRIGHT
Copyrights
© 2008 – 2010 by Motorola, Inc. All rights reserved.
No part of this manual may be reproduced, transmitted, stored in a retrieval system, or translated into
any language or computer language, in any form or by any means, without the prior written
permission of Motorola Inc.
Computer Software Copyrights
The Motorola products described in this manual may include copyrighted Motorola computer
programs stored in semiconductor memories or other media. Laws in the United States and other
countries preserve for Motorola certain exclusive rights for copyrighted computer programs including,
but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer
program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola
products described in this manual may not be copied, reproduced, modified, reverse-engineered, or
distributed in any manner without the express written permission of Motorola. Furthermore, the
purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel,
or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for
the normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a
product.
Trademarks
MOTOROLA and the Stylized M Logo are registered in the U.S.Patent and Trademark Office. All
other product or service names are the property of their respective owners.

ii
SAFETY
Product Safety and RF Exposure Compliance
ATTENTION!
This is restricted to occupational use only to satisfy ICNIRP RF energy exposure
requirements. Before using this product, read the RF energy awareness information and
operating instructions in the Quick Reference Card enclosed with your radio (Motorola
Publication part number 68007024011) to ensure compliance with RF energy exposure limits.
For a list of Motorola-approved antennas, and other accessories, visit the following web site
which lists approved accessories: http://www.motorola.com/business
These servicing instructions are for use by qualified personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that contained in the
Operating Instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
Before using this product, read the operating instructions for safe usage contained
in the Quick Reference Card enclosed with your radio.

iii
DOCUMENT HISTORY
The following major changes have been implemented in this manual since the previous edition:
Edition Description Date
68007024004-A Initial edition Oct. 2008
68007024004-B Added VHF 136 – 174 MHz information Feb. 2009
68007024004-C Updated Section 5.5 and Section 5.7 Sept. 2009
68007024004-D Update Exploded views and Part lists for Front
Housing with Escutcheon Top
MDC1200 and QCII Info
Added UHF1 Info
Added NKP
Nov. 2010

iv Document History
Notes

Table of Contents v
Table of Contents
Copyright ........................................................................................................ i
Safety ............................................................................................................. ii
Document History ........................................................................................ iii
Chapter 1 Model Charts and Test Specifications .............................. 1-1
1.1 Radio Model Information................................................................................................................ 1-1
1.2 Model Chart for UHF2, 435–480 MHz ........................................................................................... 1-2
1.3 Model Chart for VHF, 136–174 MHz ............................................................................................1-3
1.4 UHF2 Specifications ...................................................................................................................... 1-4
1.5 VHF Specifications ........................................................................................................................ 1-5
Chapter 2 Theory Of Operation ........................................................... 2-1
2.1 Introduction .................................................................................................................................... 2-1
2.2 Major Assemblies .......................................................................................................................... 2-1
2.2.1 Receiver............................................................................................................................ 2-1
2.2.1.1 RX Front End..................................................................................................... 2-2
2.2.1.2 RX Back End ..................................................................................................... 2-3
2.2.1.3 RX Squelch........................................................................................................ 2-3
2.2.2 Transmitter........................................................................................................................ 2-4
2.2.3 Phase Lock Loop Synthesizer .......................................................................................... 2-5
2.2.4 RX Audio Circuit ............................................................................................................... 2-6
2.2.5 TX Audio Circuit................................................................................................................ 2-7
2.2.6 Microcontroller .................................................................................................................. 2-8
2.2.7 Power Supply.................................................................................................................... 2-9
Chapter 3 Test Equipment, Service Aids, and Service Tools........... 3-1
3.1 Test Equipment.............................................................................................................................. 3-1
3.2 Service Aids................................................................................................................................... 3-2
Chapter 4 Performance Checks .......................................................... 4-1
4.1 General .......................................................................................................................................... 4-1
4.2 Power–Up Self Test....................................................................................................................... 4-1
4.3 LCD/LED/Button/Volume Knob Test Mode.................................................................................... 4-1
4.4 LED/Button/Volume Knob Test Mode (Non Keypad Models) ........................................................ 4-3
Chapter 5 Radio Programming and Tuning ....................................... 5-1
5.1 Introduction .................................................................................................................................... 5-1
5.2 CPS Programming Setup .............................................................................................................. 5-1
5.3 Radio-to-Radio Cloning ................................................................................................................. 5-1
5.4 Radio Tuning Setup ....................................................................................................................... 5-2

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