Motorola P8190, TALKABOUT T8097 Service Manual

Download

Page 1

Service Manual

DIGITAL W IRELESS TELEPHONE

Level III

™

Model P8190

TDMA 800MHz/Analog 800MHz

Page 2

COMPUTER SOFTWARE COPYRIGHTS

The Motorola products described in this instruction manual may include copy-righted Motorola computer programs stored in semi-conductor memories or othermedia. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including 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 instruction manual may not be copied or reproduced in any mannerwithout 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 applica-tions 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.

This manual is the property of Motorola. No part of this manual may be duplicated in any form without the express written permission of Motorola. This manual must be returned upon Motorola request

The information in this manual is subject to change without notice. No guarantee is made for accuracy or thoroughness. This manual is intended as a training aid in conjuction with formal classes provided by Motorola. Motorola takes no responsibility for the use of this manual beyond its intended scope.

Motorola, the Motorola Logo and all other trademarks identified as such herein are trademarks of Motorola, Inc. All other product or service names are the property of their respective owners.

Page 3

Page 4

Scope of Manual

This manual is intended for use by experienced technicians familiar with similar types of equipment. It is intended primarily to support basic servicing, which consists primarily of mechanical repairs and circuit board replacement. Authorized distributors may opt to receive additional training to become authorized to perform limited component repairs. Contact your regional Customer Support Manager for details.

Model and Kit Identification

Motorola products are specifically identified by an overall model number on the FCC label. In most cases, assemblies and kits which make up the equipment also have kit model numbers stamped on them.

Service

Motorola regional Cellular Subscriber Support Centers offer some of the Þnest repair capabilities available to Motorola Subscriber equipment users. The Cellular Subscriber Support Centers are able to perform computerized adjustments and repair most defective transceivers and boards. Contact your regional Customer Support Manager for more information about MotorolaÕs repair capabilities and policy for in-warranty and outof-warranty repairs in your region.

About This Manual

General Safety Information

Portable Operation

DO NOT hold the radio so that the antenna is very close to, or touching, exposed parts of the body, especially the face or eyes, while transmitting. The radio will perform best if it is held in the same manner as you would hold a telephone handset, with the antenna angled up and over your shoulder. Speak directly into the mouthpiece. DO NOT operate the telephone in an airplane. DO NOT allow children to play with any radio equipment containing a transmitter.

Mobile Operation (Vehicle Adaptor)

As with other mobile radio transmitting equipment, users are advised that for satisfactory operation of the equipment and for the safety of personnel, it is recommended that no part of the human body shall be allowed to come within 20 centimeters of the antenna during operation of the equipment. DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere. Mobile telephones are under certain conditions capable of interfering with blasting operations. When in the vicinity of construction work, look for and observe signs cautioning against mobile radio transmission. If transmission is prohibited, the cellu-

iii

Page 5

lar telephone must be turned off to prevent any transmission. In standby mode, the mobile telephone will automatically transmit to acknowledge a call if it is not turned off. All equipment must be properly grounded according to installation instructions for safe operation.

Portable/Mobile Telephone Use and Driving

Safety is every drivers business. The portable telephone should only be used in situations in which the driver considers it safe to do so. Use of a cellular portable while driving may be illegal in some areas. Refer to the appropriate section of the product service manual for additional pertinent safety information.

TDMA Timeport™ P8190About This Manual

Page 6

Specifications

Table 1.Overall System

Function Specification

Frequency Range TX (800MHz) : 824.04 - 848.97 MHz

Channel Spacing 30 kHz Channels 832 (800MHz) Duplex Spacing 45 MHz (800MHz) Input/Output Impedance 50 ohms (nominal) Operating Voltage +4.0 to +5.5Vdc (external connector ) Dimensions 5.1 cubic inches Weight 3.6 ounces Display 96x32 LCD display Maximum RF Power Output 0.6 Watts (28 dBm) Automatic Power Control 9, 4 dBm steps

Channels 1 to 799, f Channels 990 to 1023, f

RX(800 MHz): 869.04 – 893.97 MHz

Channels 1 to 799, f Channels 990 to 1023, f

= 0.03 * N+ 825MHz

= 0.03(N-1023)+ 825MHz

= 0.03 * N+ 870MHz

= 0.03(N-1023)+ 870MHz

About This ManualService Manual

Table 2. EAMPS System

Function Specification

Modulation Type FM Frequency Stability + 2.5ppm Duty Cycle Continuous Audio Distortion (transmit and receive) FM Hum and Noise (C-MSG weighted) Voice Modulation Maximum + 12 kHz deviation Transmit Audio Sensitivity 9 kHz deviation (nom.) @ 97 dB SPL input @ 1 kHz Receive Sensitivity -116 dBm for 12 dB SINAD (C-MSG weighted) Adjacent and Alternate Channel Desensitization IM Greater than 65 dB

Less than 5% at 1 kHz; + 8 kHz deviation

32 dB below + 8 kHz deviation @ 1 kHz

-16 dB @ +30 kHz, -60 dB @ + 60 kHz

Page 7

Table 3. DAMPS System

Function Specification

Modulation Type Frequency Stability + 200 Hz Duty Cycle 32.3% Error Vector Magnitude (π/4DQPSK mode) Transmit Audio Sensitivity TOLR of –46 dB nominal

Receive Sensitivity -116 dBm for 3% static BER Adjacent and Alternate Channel Desensitization IM Less than or equal to 3% static BER Vocoder ACELP

π/4DQPSK

Error Vector Magnitude [Digital] 12.5%

-116 dBm for 3% static BER

Table 4. Environment

TDMA Timeport™ P8190About This Manual

Function Specification

Temperature -30ºC to +60ºC Humidity 80% RH at 50ºC Vibration EIA PN1376 Shock EIA PN1376

Page 8

Table of Contents

About This Manual .....................................................................................................................................iii

Scope of Manual .....................................................................................................................................iii

Model and Kit Identification...................................................................................................................iii

Service......................................................................................................................................................iii

General Safety Information...................................................................................................................iii

Portable Operation ..................................................................................................................................iii

Mobile Operation (Vehicle Adaptor) ..........................................................................................................iii

Portable/Mobile Telephone Use and Driving..............................................................................................iv

Specifications ...........................................................................................................................................v

Cellular Overview.........................................................................................................................................1

Introduction...............................................................................................................................................1

Control (Data) Channels ...........................................................................................................................2

Voice Channels ........................................................................................................................................3

Signaling Protocol ....................................................................................................................................3

Analog Cellular .........................................................................................................................................5

Signaling Tone (ST) and Digital ST (DST) ..................................................................................................5

SAT (Supervisory Audio Tone) and DSAT (Digital SAT) ...............................................................................6

DTMF (Dual Tone Multi-Frequency)...........................................................................................................6

Analog Cellular Signal Summary (AMPS and NAMPS)...............................................................................7

Going into Service ...................................................................................................................................8

Placing a Call (Mobile to Land or Mobile to Mobile) ..................................................................................10

Receiving a Call (Land to Mobile)............................................................................................................11

Power Steps...........................................................................................................................................13

Hand-offs ...............................................................................................................................................13

Call Termination .....................................................................................................................................15

Digital Cellular........................................................................................................................................17

Multiplexing ...........................................................................................................................................17

FDMA (Frequency Division Multiple Access) ............................................................................................17

Digitizing Voice ......................................................................................................................................17

TDMA (Time Division Multiple Access) ....................................................................................................18

Digitization and TDMA ............................................................................................................................18

Digitization of Voltage.............................................................................................................................19

Conventional Radio ................................................................................................................................19

TDMA Radio ..........................................................................................................................................20

Accessories.................................................................................................................................................21

TDMA EASY NAM Programming ............................................................................................................25

Introduction.............................................................................................................................................25

User Mode Programming......................................................................................................................25

Programming Sequence.......................................................................................................................26

vii

Page 9

TDMA Timeport™ P8190Table of Contents

Enter Programming Mode.......................................................................................................................26

Enter Security Code ...............................................................................................................................26

Enter Phone Number..............................................................................................................................26

Programming a second No. ....................................................................................................................26

If you make a mistake ............................................................................................................................26

TDMA Test Mode NAM Programming...................................................................................................27

Introduction.............................................................................................................................................27

Entering Test Mode NAM Programming.............................................................................................27

NAM Programming Steps .....................................................................................................................27

NAM Data ................................................................................................................................................28

User Mode Programming......................................................................................................................28

Test Mode NAM Programming Sequence..........................................................................................29

Manual Test Mode......................................................................................................................................33

Introduction.............................................................................................................................................33

Entering Manual Test Mode .................................................................................................................33

Status Display Level ..............................................................................................................................33

Servicing Level.......................................................................................................................................34

Test Procedures.........................................................................................................................................37

Introduction.............................................................................................................................................37

Automatic Call-Processing Tests .........................................................................................................37

Analog Test Measurements .....................................................................................................................37

Digital Test Measurements ......................................................................................................................37

MCEL 2000 Modifications ....................................................................................................................38

Test Connections ...................................................................................................................................39

RF Cable Test .........................................................................................................................................40

To test the RF cable for proper loss: ........................................................................................................40

Set up for Analog call............................................................................................................................41

Registration ...........................................................................................................................................41

Page .....................................................................................................................................................41

Select CALL CNTL from the To Screen....................................................................................................41

Origination.............................................................................................................................................41

RX Sensitivity Test (SINAD) .................................................................................................................42

Test Mode Commands: ...........................................................................................................................42

Communications Analyzer Setup: ............................................................................................................42

TX Power Out Test .................................................................................................................................43

Test Mode Commands: ...........................................................................................................................43

Communications Analyzer Setup: ............................................................................................................43

Test Mode Commands: ...........................................................................................................................43

Communications Analyzer Setup: ............................................................................................................43

TX Frequency Error Test ......................................................................................................................44

Test Mode Commands: ...........................................................................................................................44

Communications Analyzer Setup: ............................................................................................................44

TX Maximum Deviation Test ................................................................................................................45

Test Mode Commands: ...........................................................................................................................45

Communications Analyzer Setup: ............................................................................................................45

viii

Page 10

Table of ContentsService Manual

TX SAT Deviation Test..........................................................................................................................46

Procedure..............................................................................................................................................46

Select CALL CNTL from the To Screen....................................................................................................46

TX ST Deviation Test ............................................................................................................................47

Test Mode Commands: ...........................................................................................................................47

Communications Analyzer Setup: ............................................................................................................47

Set up for TDMA call .............................................................................................................................48

Call Process ..........................................................................................................................................48

Registration ...........................................................................................................................................48

Select CALL CNTL from the To Screen....................................................................................................48

Page .....................................................................................................................................................48

Origination.............................................................................................................................................48

MAHO Measurements...........................................................................................................................49

Setting up the MAHO measurement ........................................................................................................49

Measuring MAHO ...................................................................................................................................49

BER Measurements ...............................................................................................................................50

Test Mode Commands: ...........................................................................................................................50

BER Measurement Procedure.................................................................................................................50

TX Power Measurements .....................................................................................................................51

Test Mode Commands: ...........................................................................................................................51

Digital TX Power Out Test Procedure.......................................................................................................51

TX Frequency Error Measurements ...................................................................................................52

Test Mode Commands: ...........................................................................................................................52

TX Frequency Error Measurement Test ...................................................................................................52

EVM Measurements .............................................................................................................................53

Test Mode Commands: ...........................................................................................................................53

TX Frequency Error Measurement Test ...................................................................................................53

Disassembly................................................................................................................................................55

Introduction.............................................................................................................................................55

Recommended Tools .............................................................................................................................55

Battery Removal.....................................................................................................................................56

Antenna Removal ..................................................................................................................................56

Back Housing Removal........................................................................................................................56

Transceiver Board Removal................................................................................................................59

Display Board Removal ........................................................................................................................60

Flip Removal...........................................................................................................................................61

Speaker / Vibrator Removal .................................................................................................................63

Board Assembly .....................................................................................................................................67

Closing Housing.....................................................................................................................................68

Parts List ......................................................................................................................................................69

Introduction.............................................................................................................................................69

Mechanical Explosion..........................................................................................................................70

Electrical Parts (Locator).....................................................................................................................71

Page 11

TDMA Timeport™ P8190Table of Contents

Theory of Operation ..................................................................................................................................77

Antenna Circuit.......................................................................................................................................77

RX Front End IC .....................................................................................................................................77

Custom IC ...............................................................................................................................................77

VCO .........................................................................................................................................................78

TX Offset Oscillator...............................................................................................................................78

Merlin IC ..................................................................................................................................................78

Amp Drivers ............................................................................................................................................79

PA Circuit.................................................................................................................................................79

RF Detect Circuit ...................................................................................................................................79

Analog / Digital Switch.........................................................................................................................80

DCI (U1800)...........................................................................................................................................80

GCAP2 (U1500)....................................................................................................................................80

Audio / Thermistor ................................................................................................................................81

Charger / Batt Select............................................................................................................................81

DOUB Supply / Backlight ....................................................................................................................82

Reference Oscillator.............................................................................................................................82

Stuart IC (U1700)..................................................................................................................................82

DSP (U1900) .........................................................................................................................................83

Call Processor (U1000) .......................................................................................................................84

Memory...................................................................................................................................................84

Analog TX Audio Processing ..............................................................................................................84

Digital TX Audio Processing ...............................................................................................................85

Service Diagrams - Section A................................................................................................................ A1

Antenna Circuit.......................................................................................................................................A2

RX Front End IC (U11)..........................................................................................................................A4

Custom IC (U110) ..................................................................................................................................A6

VCO/Vibrator ..........................................................................................................................................A8

TX Offset Oscillator............................................................................................................................A10

Merlin TX (U301) ................................................................................................................................A12

Amp Drivers .........................................................................................................................................A14

PA Circuit..............................................................................................................................................A16

RF Detect Circuit ................................................................................................................................A18

Analog/Digital Switch.........................................................................................................................A20

DCI (U1800) .........................................................................................................................................A22

GCAP2 (U1500)..................................................................................................................................A24

Audio/Thermistor.................................................................................................................................A26

Charger/Batt Select............................................................................................................................A28

DOUB Supply/Backlight .....................................................................................................................A30

Reference Oscillator...........................................................................................................................A32

STUART (U1700) ................................................................................................................................A34

DSP (U1900) .......................................................................................................................................A36

Page 12

Table of ContentsService Manual

Call Processor(U1000) ......................................................................................................................A38

Memory.................................................................................................................................................A40

B+ Disconnect/Status LEDs..............................................................................................................A42

Alert/Headset Detect..........................................................................................................................A44

JIB Connector......................................................................................................................................A46

Connectors...........................................................................................................................................A47

Layout Side 1.......................................................................................................................................A48

Layout Side 2.......................................................................................................................................A49

RF Block Diagram...................................................................................................................................A50

A/L Block Diagram..................................................................................................................................A51

Page 13

Cellular Overview

Introduction

A cellular mobile telephone system divides the service area into small, low power radio frequency coverage areas called cells. A cellular system consists of a more or less continuous pattern of these cells, each having a 1 to 40 mile radius (typically 5 - 10 miles). Within each cell is a centralized cell site with an elevated antenna and a building. The building houses a base station with transceivers and related control equipment for the

Figure 1. Channel Assignments

A BAND CHANNELS

Primary Control Channels (21): 313 - 333

Secondary Control Channels (21): 688 - 708

Voice Channels... 001 - 312,

(395 AMPS / 1185 NAMPS): 667 - 716, and

channels assigned to that cell. All the cell sites within a system are then connected either by dedicated land lines, microwave links, or a combination of both to a central control site called the central controller or switch .

The switch controls the entire cellular system and serves as the interface between the cellular telephone user and the landline network. Each cell site operates on an assigned access channel, and may have any number of paging and voice channels assigned to it.

991 - 1023

Primary Control Channels (21): 334 - 354

Secondary Control Channels (21): 737 - 757

Digital cellular multiplexes voice channels to allow for the

possibility of several additional conversations on a single channel.

B BAND CHANNELS

Voice Channels... 355 - 666 and

(395 AMPS / 1185 NAMPS): 717 - 799

NOTE:

In NAMPS applications, each AMPS voice channel

provides space for three NAMPS voice channels.

Page 14

Introduction

The cellular radio frequency spectrum has been divided by the FCC into two equal segments or bands to allow two independent cellular carriers to coexist and compete in the same geographic coverage area. Each band occupies one half of the available channels in the cellular spectrum. Initially there were 666 channels available across the entire cellular spectrum, but that number was expanded to 832 channels in 1987, and with NAMPS to 2,412 channels in 1991. Digital cellular promises to make a further expansion. To guarantee nationwide compatibility, the signaling channel frequencies have been pre-assigned to each segment (band). The two bands and their assigned channels

TDMA Timeport™ P8190Cellular Overview

are defined in Figure 1. Originally the B Band was assigned to the

telephone company (referred to by a euphemism, the Wireline carrier). The A Band, by default, was referred to as the Non-Wireline carrier, guaranteed competition to the telephone company. Today the terms Wireline and Non-Wireline have little meaning since telephone company carriers now operate A Band systems, and vice-versa.

Control (Data) Channels

A cellular telephone in the cellular system is under the indirect control of the switch, or central controller. The central controller uses dedicated control channels to provide the sig-

Figure 2. US Cellular Frequency Band

US Cellular Frequency Band

832 channels

333

334

1023

991 666

001

A' A' B'

A A

313

312

Band A Band B

Voice

Channels

Control

Channels

354

355

Voice

Channels

666

667

716

667

717

716

717

799

TDMA Secondary Control Channels

737 - 757688 - 708

Page 15

Cellular OverviewService Manual

Introduction

naling required to establish a telephone call. Control channels are used to send and receive only digital data between the base station and the cellular telephone. Voice channels are used for both audio and signaling once a call is established. The 21 control channels in each band may be dedicated according to two different applications: access and paging channels.

The data on the forward control channel generally provides some basic information about the particular cellular system, such as the system ID and the range of channels to scan to find the access and paging channels. Access channels are used to respond to a page or originate a call. The system and the cellular telephone will use access channels where two-way data transfer occurs to determine the initial voice channel. Paging channels, if used, are the normal holding place for the idle cellular telephone. When a call is received at the central controller for a cellular telephone, the paging signaling will occur on a paging channel. In many systems both control channel functions will be served by the same control (access) channel for a particular cell. Only in very high density areas will multiple control (paging) channels be required.

Primary control channels are used by all types of telephones. Secondary control channels are only used by TDMA telephones, providing them with an improved probability of locking onto a TDMA control channel.

Voice Channels

Voice channels are primarily used for conversation, with signaling being employed as necessary to handle cell-to-cell hand-offs,

output power control of the cellular radiotelephone, and special local control features. Data from the cell site (known as FORWARD DATA) and data from the mobile or portable (known as REVERSE DATA) is sent using frequency shift keying. In AMPS signaling, various control and response tones are used for a variety of applications to be described later. However, in NAMPS signaling, the signaling data and tones have been replaced by sub-audible digital equivalents that constantly ride underneath the audio. And, of course, in digital cellular, all signaling is digital.

Signaling Protocol

In 1983, when the Federal Communications Commission (the FCC) licensed cellular telephony, the signaling protocol used was AMPS. AMPS (Advanced Mobile Phone Service) was the invention of Bell Labs, the signaling protocol that was ultimately adopted by all the governments of the entire Western Hemisphere and, eventually, several other governments throughout the world.

Today, with the implementation of Narrow AMPS and TDMA, and the imminence of CDMA, it may seem that AMPS is out of date. The truth is that AMPS is very much alive, at the very core of all these traffic expanding alternatives to the original signaling protocol developed for conventional cellular telephony.

Under the original AMPS protocol there were 21 control channels assigned to each of two possible carriers in any metropolitan area, with a total of 333 channels assigned to each carrier. Prior to 1987 the FCC had allocated 312 channels to voice (voice, DTMF, or data)

Page 16

Introduction

TDMA Timeport™ P8190Cellular Overview

applications for each carrier. In 1987 the FCC expanded the cellular spectrum (Expanded Spectrum) from a total of 666 channels to 832 channels, allowing for an increase of 83 voice channels for each carrier. But the number of control channels remained constant, 21 control channels for each carrier.

In 1991, responding to the demand for even more voice channels, Motorola introduced NAMPS (Narrow AMPS), expanding the voice channels by a factor of 3, assuming all subscribers are using NAMPS telephones. But one thing remained constant, there were 21 control channels for each carrier.

In 1992, when Motorola tested its TDMA digital product, digitizing three communication links on each of 395 voice channels, one thing remained constant: there were still 21 con- trol channels for each carrier.

between digital cellular and AMPS is that all signals are digitized, including voice.

At a basic level, cellular telephony has two divisions: analog cellular and digital cellular. In the following section, analog cellular (AMPS and NAMPS) will be discussed. In the succeeding section, digital cellular will be treated.

Leaving the control channels more or less untouched is the key to allowing telephones that are not capable of NAMPS or digital operation to have access to the system using the conventional AMPS scheme. In virtually every scheme (AMPS, NAMPS, or digital), each control channel has a bandwidth of 30 kHz and uses the signaling protocol, with minor variations for NAMPS and digital, developed for conventional AMPS

The primary difference between NAMPS and AMPS is that a NAMPS voice channel has a bandwidth of only 10 kHz, whereas an AMPS voice channel has a bandwidth of 30 kHz. In addition, NAMPS does not make use of certain control and response tones on voice channels as does AMPS, but uses digital equivalents instead. As the name implies, the primary difference

Page 17

Cellular OverviewService Manual

Analog Cellular

The simplified block diagram on page 1 - 7 illustrates an imaginary layout of one side (Band A, or Band B) of a hypothetical service area. The hexagons represent cells, and some of the cell sites shown here also illustrate the fact that an antenna tower and set of base stations are associated with each site. In a real world environment individual cells do not have the hexagonal shape but may take any form as dictated by the environment.

The cell sites are in communication with individual portable and mobile cellular telephones. These portables and mobiles may move from cell to cell, and as they do they are “handed off” under the supervision of the

Figure 3. Channel Assignments

central controller (switch). As illustrated(figure 3.) by the antenna tower

on the upper left, cell sites transmit overhead messages more or less continuously even if there are no mobiles or portables active within that cell.

The switch (center left) is in control of the system and interfaces with the central office of the telephone company. As illustrated by the deskset telephones, the telephone company interfaces with the entire landline network.

The cell sites and the mobiles and portables communicate through the use of data or, in the case of AMPS, through the use of data and tones. A complete analysis of data signaling is beyond the scope of this manual. Refer to the Electronic Industries Association standard EIA-553 for a thorough discussion of AMPS signaling protocol, or to Motorola’s NAMPS Air Interface Specification for NAMPS.

Cellular

Switch

Telephone

Company

Central Office

The tones used in AMPS signaling are Signaling Tones and Supervisory Audio Tones. NAMPS uses sub-audible digital equivalents.

Signaling Tone (ST) and Digital ST (DST)

In AMPS, signaling tone is a 10 kHz signal used by the mobile or portable on the reverse voice channel (REVC) to signal certain activities or acknowledge various commands from the cell site, including hand-offs, alert orders, and call terminations, and to indicate switch-hook operation. Various burst lengths are used for different ST activities. On NAMPS channels ST is replaced by a digital equivalent called Digital ST (DST) which is

Page 18

Analog Cellular

TDMA Timeport™ P8190Cellular Overview

the complement of the assigned DSAT.

SAT (Supervisory Audio Tone) and DSAT (Digital SAT)

The Supervisory Audio Tone (SAT) is one of three frequencies around 6 kHz used in AMPS signaling. On NAMPS channels SAT is replaced by one of seven sub-audible digital equivalents or vectors called DSAT. SAT (or DSAT) is generated by the cell site, checked for frequency or accuracy by the cellular telephone, then transponded (that is, not merely reflected but generated and returned) to the cell site on the reverse voice channel (REVC). The cellular telephone uses (D)SAT to verify that it is tuned to the correct channel after a new voice channel assignment. When the central controller (switch) signals the mobile regarding the new

Figure 4. Channel Assignments

voice channel, it also informs the mobile of the SAT frequency or DSAT vector to expect on the new channel. The returned (D)SAT is used at the cell site to verify the presence of the telephone’s signal on the designated channel.

In general there are three uses of (D)SAT: (a) it provides a form of squelch; (b) it provides for call continuation (but if equipped for it, the switch will allow for VOX on all models); and (c) (D)SAT is used to prevent co-channel interference.

DTMF (Dual Tone Multi-Frequency)

DTMF (Dual Tone Multi-Frequency) touchcode dialing may also occur on voice channels. DTMF selects two tones from a total of nine (cellular only uses seven of these tones / four low and three high tones) to uniquely represent individual keys.

SAT 0 (5970 Hz)

SAT 1 (6000 Hz)

SAT 2 (6030 Hz)

Re-use

Cellular System

327

329

333

324

332

328

326

330

140 119

98 77 56

326

313

198 177 156 135 114

331

318

324

143 122 101

320

322

326

319

330

140 119

98 77 56

Table 6. DTMF Values

Key Low Tone High Tone

1 697 1209 2 697 1336 3 697 1477 4 770 1209 5 770 1336 6 770 1477 7 852 1209 8 852 1336 9 852 1477

* 941 1209 0 941 1336 # 941 1477

Page 19

Cellular OverviewService Manual

Analog Cellular

Analog Cellular Signal Summary (AMPS and NAMPS)

The diagrams on the following pages outline the various uses of the signals employed in cellular systems. These signals include: SAT (Supervisory Audio Tone) 5970 Hz, 6000 Hz, or 6030 Hz. Used in AMPS for channel reuse, muting audio (squelch), and call continuation [typically ± 2 kHz deviation]. Digital SAT (DSAT) - One of seven codes or vectors used in NAMPS for the same purpose as SAT [± 700 Hz sub-audible NRZ data].

Data - Transmitted at 10 kilobits/second in AMPS and 200 bits/second in NAMPS. Data is used for sending System Orders and Mobile Identification. Do not confuse data with the 10 kHz signaling tone. In AMPS, data is transmitted as Manchester-encoded Frequency Shift Keying (FSK), where the carrier is shifted high or low 8 kHz, and the trailing edge transition is used to represent the

logic. In NAMPS, data is transmitted as NRZ (Non-Return to Zero) FSK, where the carrier is shifted high or low 700 Hz, and the frequency shift itself is used to represent the logic.

Signaling Tone (ST) - A 10 kHz tone used in AMPS for mobile ringing, call terminations, hand-offs, and switch-hook operation [typically ± 8 kHz deviation]. ST is always accompanied by SAT.

Digital ST (DST) - One of seven digital equivalents of ST used on NAMPS channels. The transmitted DST is always the complement of the assigned DSAT [± 700 Hz subaudible NRZ data].

Audio - Includes microphone audio and DTMF [maximum ± 12 kHz deviation AMPS, ± 5 kHz deviation NAMPS]. DTMF deviation should be measured on the radians scale; use key five looking for 9 radians. Audio is accompanied by SAT in AMPS signaling.

Figure 5. AMPS Deviation in kHz

AMPS Deviation in kHz

AMPS Voice Channels

±14 ±12

±10

± 8 ± 6 ± 4 ± 2

SAT

Data

SAT

Signal

Audio

Tone

Control

Channels

DataDataAudio

Page 20

Analog Cellular

Total deviation of two or more signals is cumulative.

Going into Service

When first turned on, the cellular telephone will scan through the nationwide set of forward control channels (FOCC’s) and measure the signal strength on each one. It will then tune to the strongest one and attempt to decode the overhead control message. From the overhead message, the telephone will be able to determine whether or not it is in its home system, and the range of channels to scan for paging and access. Telephones not in their home system will be able to use other cellular telephone systems depending on the level of service requested by the user. If paging channels are used, the telephone next scans each paging channel in the specified range and tunes to the strongest one. On that channel the telephone continuously receives the overhead message information plus paging messages. At this point the telephone idles, continuously updating the overhead message information in its memory and monitoring the paging messages for its telephone number.

TDMA Timeport™ P8190Cellular Overview

Step 5. Decision point. Can the overhead

message from the strongest control channel be decoded? If not, go to step 6. If it can be decoded go to step 8.*

Step 6. The telephone tunes to the second

strongest channel.

Step 7. Decision point. Can the overhead

message stream be decoded? If not, go to step 12. If it can be decoded, go to step 8.*

Step 8. Decision point. Does the decoded

System ID match the Home System ID programmed in the telephone? If not, go to step 9. If it does match, go to step 10.

Step 9. The telephone turns on the ROAM

indicator.

Step 10.The telephone turns off the NoSvc

indicator.

Step 11.The telephone idles. Typically a re-

scan occurs after 5 minutes.

Step 1. The telephone powers up and runs

a self-test. The NoSvc indicator is illuminated.

Step 2. The telephone scans its preferred

system (A or B) as selected in programming.

Step 3. The telephone scans all twenty-one

control channels.

Step 4. The telephone tunes to the stron-

gest control channel.

Step 12.The telephone turns on (or leaves

on) its NoSvc indicator.

Step 13.The telephone switches to the non-

preferred system as recorded in programming, and goes back to step 3. The ability to return to step 3 can be disabled by some settings of System Registration.

*The area between Decision point 5 and Decision point 8 can be quite active. In a few larger systems, following the suc-

Page 21

Cellular OverviewService Manual

Analog Cellular

cessful completion of either steps 5 or 7, the telephone scans a set of paging channels, tunes to the strongest, and attempts to decode the overhead message train. The procedure is exactly equivalent to that followed for the access (control) channel. Also at this point, in a few larger systems, the telephone is commanded to identity itself (transmit) and thereby indicate its location in the system. This is called Autonomous System Registration and, like paging channels, is used to improve paging efficiency.

Figure 6. Going into Serivce

1. Power Up / Self Test

Turn on No Svc Indicator

If the system employs Narrow AMPS, part of the overhead message stream is used to ask the for activity on one of the secondary or “digital” control channels, whereas a CDMA telephone will look for pilot signals. If digital signaling is not present, and if the telephone is capable of dual mode operation, it will default to AMPS mode.

Going Into Service

With a Cellular Telephone

2. Scan Preferred System (A or B)

3. Scan all 21

Control Channels

4. Tune to Strongest Control Channel

Receive

Overhead

Info

Yes

SID matches

Home SID

Note: In order to turn off

the NoSvc light, the

overhead message stream

must have been decoded.

* In those telephones with Motorola Enhanced Scan, more than two control channels are sampled

before proceeding to step 12.

Yes

6. Tune to 2nd

Strongest Channel

Note: In order to turn on the

Roam light, the SID in the

overhead message stream must

NOT match the SID

programmed into the telephone.

9. Turn on

Roam Indicator

10. Turn Off

NoSvc Indicator

11. Idle [Rescan after 5 minutes.]

Receive

Overhead

Info

Yes

12. Turn On

NoSvc Indicator

13. Switch to

Non-Preferred System

Page 22

Analog Cellular

TDMA Timeport™ P8190Cellular Overview

Placing a Call (Mobile to Land or Mobile to Mobile)

When the cellular telephone user originates the call, the cellular telephone re-scans the access channels to assure that it is still tuned to the strongest one. The cellular tele-

Figure 7. Cellular Telephone to Land Call Processing

Cellular Telephone Landline NetworkSwitch / Cell Site

The cellular telephone is

tuned to the access / paging

channel, and responds to

requests for data.

The cellular telephone user

dials a telephone number

and presses SND. The tele-

phone rescans the access

channels for the strongest

signal. The telephone

sends out data, including

the dialed digits, MIN, ESN,

and NAMPS or digital

capability to the cell site.

The cellular telephone

receives the voice channel

assignment, drops the

access channel, tunes to the

voice channel, and

transponds the assigned

SAT or DSAT.

DATA

FOCC

RECC

DATA

RECC

DATA

FOCC

(D)SAT

FOVC

(D)SAT

REVC

Overhead data is sent out

on the control channels.

The cell site receives the

mobile-to-land call request.

The cell site sends the data to

the switch. The switch

verifies the MIN & ESN and

then sends out the call to the

landline network.

The switch assigns a voice

channel and SAT or DSAT.

The voice channel assignment is sent to the cellular

telephone on the access

channel. The cell site sends

SAT or DSAT to the cellular

telephone on the assigned

voice channel.

The cell site receives the

correct SAT or DSAT, then

unmutes the voice path.

phone then transmits data at the rate of 10 kilobits per second on the control channel to notify the switch of its mobile identification number (MIN) and the number it wants to reach. The switch verifies the incoming data and assigns a voice channel and a SAT (or DSAT for NAMPS channels) to the telephone.

The local telephone

company processes the

telephone call.

The cellular telephone user

hears the landline ringing.

Conversation in progress

VOICE + (D)SAT

FOVC & REVC

The landline person being

called answers.

Conversation in progress

Page 23

Cellular OverviewService Manual

Analog Cellular

The cellular telephone tunes to the assigned voice channel and verifies the presence of the proper forward SAT frequency (or DSAT message). If SAT (DSAT) is correct the telephone transponds SAT (DSAT) back to the cell site and unmutes the forward audio. The cell site detects reverse SAT (DSAT) from the cellular telephone and unmutes reverse audio. At this point both forward and reverse audio paths are unmuted and the cellular telephone user can hear the other end ring, after which conversation can take place. SAT (DSAT) is sent and received more or less continuously by both the base station and the cellular telephone. However, SAT (DSAT) is not sent during data transmissions, and the cellular telephone does not transpond SAT continuously during VOX operation. Also, DSAT is suspended during the transmission of DST. Notice that SAT and Signaling Tones are only used on AMPS voice channels, and that the Signaling Tone is only transmitted by the cellular telephone.

site, the reception of SAT (DSAT) signals the central controller that the cellular telephone is ready for the call. An alert order is then sent to the cellular telephone which responds with a 10 KHz signaling tone (DST message). The subscriber unit rings for 65 seconds or until the user answers. Then the 10 KHz signaling tone (DST message) is terminated to alert the central controller that the user has answered. The switch then connects the incoming call to the appropriate circuit leading to the cell in contact with the cellular telephone. At this point both forward and reverse audio paths are unmuted and the conversation can take place. SAT (DSAT) is sent more or less continuously by the base station and transponded by the cellular telephone, except during data transmission. DSAT is suspended during DST transmission, and during VOX operation SAT (DSAT) is not transponded continuously by the cellular telephone.

Receiving a Call (Land to Mobile)

Once a cellular telephone has gone into service, it periodically scans the overhead message information in its memory and monitors the paging messages for its telephone number. When a page match occurs the cellular telephone scans each of the access channels and tunes to the strongest one. The cellular telephone then acknowledges the page on that access channel and thus notifies the central controller of its cell location. The switch then assigns a voice channel and a SAT (DSAT) to the cellular telephone. The cellular telephone tunes to the voice channel, verifies the presence of the proper SAT frequency (DSAT message) and transponds the signal back to the cell site. At the cell

Page 24

Figure 8. Land to Cellular Telephone Call Processing

TDMA Timeport™ P8190Cellular Overview

Landline Network

The landline caller dials the

cellular telephone number.

The Public Service Telephone

Network (central office)

forwards the call to the central

controller (switch).

The landline caller hears

ringing, busy, etc.

Switch / Cell Site

Overhead data is sent out

on the control channels.

The switch receives a call from

land. The switch pages the

cellular telephone. The page is

sent as data on the forward

control channel.

The cell site receives the

acknowledgement and sends it

to the switch. The switch

verifies the ESN & MIN and

assigns a voice channel.

The cell site informs the

cellular telephone of the voice

channel and SAT (DSAT).

The cell site sends the SAT

(DSAT) on the voice channel.

The cell site receives the correct

SAT (DSAT) and alerts the

cellular telephone to ring.

The cell site receives signaling

tone (DST message) from the

cellular telephone.

DATA

FOCC RECC

DATA

FOCC

DATA

RECC

DATA

FOCC

(D)SAT

FOVC

(D)SAT

REVC

DATA

FOVC

(D)ST + (D)SAT

REVC

Cellular Telephone

The cellular telephone is

tuned to the

access / paging

channel, and responds

to requests for data.

The cellular Telephone

decodes the data and

successfully reads its MIN.

The telephone scans the

control channels for the strongest, then acknow-

ledges the page by sending

it’s ESN, MIN, and NAMPS

or digital capability as data

on the control channel.

The telephone receives

the data and tunes to the

assigned voice channel,

then transponds the SAT (DSAT).

The cellular telephone

rings. While ringing, the

subscriber unit sends a 10

kHz signaling tone (DST

message) to the cell site.

Conversation in progress

The cell site unmutes the

voice path.

VOICE + (D)SAT

FOVC & REVC

(D)SAT

REVC

The cellular telephone user

answers by pressing SND

The signaling tone stops.

Conversation in progress

Voice path unmuted

Page 25

Cellular OverviewService Manual

Analog Cellular

Power Steps

As a call progresses, the cell site continuously monitors the reverse channel for signal strength.

Every cellular telephone has a number of power steps ranging from full power (3 watts in a mobile and .6 watts in a portable) down to as low as about half a milliwatt. In reality all cellular telephones have eight power steps, but portable models are prevented from using the two highest power steps by the cell site. Transmit power level commands are sent to the cellular telephone as required to maintain the received signal strength within prescribed limits.

This is done to minimize interference possibilities within the frequency re-use scheme. If the signal received from the cellular telephone is higher than the prescribed limit (such as when the unit is very near the cell site), the subscriber unit will be instructed to step down to a lower level.

Hand-offs

If the cellular telephone is at its maximum allowed power for the cell site it is using and the received signal at the cell site is approaching the minimum allowable (typically -100 dBm), the cell site will signal the switch to consider the subscriber unit for a hand-off. The central controller (switch) will in turn have a scanning receiver at each of the surrounding cell sites measure the cellular telephone’s signal strength. The site with the strongest signal will be the site to which the call will be handed to if there are available voice channels.

On an AMPS channel the hand-off is executed by interrupting the conversation with a burst of data (called blank and burst) containing the new voice channel assignment. The telephone acknowledges the order by a 50 millisecond burst of 10 kHz signaling tone on the originally assigned voice channel. The mobile telephone then drops the original voice channel and tunes to the newly assigned voice channel, keying up on that channel and transponding the assigned SAT. But on a NAMPS channel the hand-off is executed with a low speed data transmission that does not interrupt the voice. The telephone acknowledges the order in this case by a DST message. In either case, once the hand-off has been accomplished, the newly assigned cell site then alerts the switch that the handoff has been completed, and the old voice channel is dropped.

It should be noted that this data exchange happens very quickly, lasting only as long as 260 milliseconds. However, when data or signaling tones are transmitted, audio is muted for the duration of that transmission and a syllable or two may be dropped from conversation. This is normally not a problem, but during data signaling, such as that employed for telefacsimile, answering machine, and computer communications, significant amounts of information may be lost. For this reason it is recommended that when THE Cellular Connection™ equipment is used the vehicle should be stationary to avoid data loss during hand-offs and other data transmissions. Otherwise the equipment should employ an error correction protocol.

Page 26

Figure 9. Cell Site Handoffs

TDMA Timeport™ P8190Cellular Overview

Cellular Telephone Landline Network

Conversation in progress.

The voice path is unmuted.

The cellular telephone

acknowledges the handoff

request by sending a10 kHz

signaling tone for 50 msec or

a DST message. The voice path is muted while sending

ST.

The telephone drops the

voice channel and keys up

on the new voice channel

frequency. The telephone

sends the newly assigned

SAT (DSAT).

DATA

FOVC

(D)ST +

SAT

REVC

(D)SAT

REVC

Switch / Cell Site

VOICE + (D)SAT

FOVC & REVC

The cell site monitors the cellular

telephone's signal strength. When

the signal strength falls below the

allowed minimum (typically

-100 dBm at the highest power step), the cell site informs the

switch of the need for a handoff.

The switch orders surrounding cell

sites to measure the cellular

telephone's signal strength. The

switch assigns a new cell site,

voice channel, and SAT (DSAT)

based on the highest signal

strength, and informs both cell

sites. The old cell site mutes the

voice path and sends a data burst

with handoff information to the

cellular telephone

The originally assigned cell site

receives the signaling tone

(DST) and informs the switch to

continue with the handoff.

The switch moves the landline to the

voice channel at the new cell site.

The new cell site receives the

correct SAT (DSAT) and unmutes

the voice path.

Conversation in progress.

The voice path is unmuted.

Conversation in progress.

The voice path is unmuted.

VOICE + (D)SAT

FOVC & REVC

Conversation in progress.

The voice path is unmuted.

Page 27

Cellular OverviewService Manual

Analog Cellular

Call Termination

signalling tone burst for 1.8 seconds, indicat-

ing a call termination request to the switch. When the call is terminated by the landline caller (not the cellular telephone user), the central controller (switch) issues a release order to the subscriber unit. The cellular telephone acknowledges with a 10kHz signalling tone burst for 1.8 seconds and the

In either case after call termination, the cel-

lular telephone goes back to rescan the na-

tionwide set of forward controlchannels and

repeats the Going into Service process it per-

formed at first turn-on to re-establish itself

on a paging channel. cellular telephone ceases transmission.

If the call was terminated by the cellular telephone user, the telephone generates a 10kHz

Figure 10. Cellular Telephone Call Processing Termination

Cellular Telephone

Switch / Cell Site

Landline Network

Conversation in progress.

Voice path is unmuted.

The cellular telephone user

hangs up or hits the END key to

terminate the call.

The cellular telephone sends a

1.8 second burst of 10 kHz

signaling tone or a DST vector

to the cell site, then stops

sending SAT (DST).

The cellular telephone rescans

the access / paging channels

for the strongest signal and decodes data. The cellular

telephone responds to

requests for data.

(D)ST + (D)SAT

REVC

DATA

FOCC

RECC

VOICE + (D)SAT

FOVC & REVC

The cell site receives the

signaling tone (DST) and

notifies the switch of the disconnect. The cell site

mutes the audio path on the

voice channel.

The switch informs the TelCo

of the disconnect and the

Overhead data sent out on

landline is released.

the control channel.

Conversation in progress.

The landline is released.

Page 28

TDMA Timeport™ P8190Cellular Overview

Page 29

Cellular OverviewService Manual

Digital Cellular

Multiplexing

Using a single frequency to carry two or more communication links (e.g., conversations) is called multiplexing. There are two types of multiplexing that are feasible for cellular: code division multiplexing and time division multiplexing. Both code division multiplexing and time division multiplexing digitize voice before transmitting the signal. Another type of multiplexing, frequency division multiplexing, was briefly considered, then abandoned. We will deal with each type of multiplexing separately.

FDMA (Frequency Division Multiple Access)

Frequency Division Multiple Access

(FDMA) uses two or more modulated sub-

carriers to modu-

late a third true carrier simultaneously.

While as many as six communication links

can be accommodated on a single frequency

with FDMA, the bandwidth requirements are

enormous. Given the relatively small 30 kHz

bandwidth of cellular, FDMA was never a

contender for improving the load carrying

capacity of cellular systems. Also, it should

be pointed out that FDMA is not necessarily

digital.

Digitizing Voice

If a person speaks into a microphone, a trans-

ducer in the microphone converts the me-

chanical air movements produced by the

person’s vocal cords into varying voltages. If

an oscilloscope probe is connected to the out-

put from a microphone, a varying voltage

Figure 11. Digitizing Voice

Amplitude (voltage)

Time

Page 30

Digital Cellular

TDMA Timeport™ P8190Cellular Overview

line, such as that shown in the accompanying illustration, will be produced.

If the varying voltages are sampled at some rate, the instantaneous voltages can be quantified. Let’s say we want to quantify measurements from values of zero to 255 (the maximum value a binary byte can hold). The value of 255 would represent the highest possible voltage we could expect from voice, and zero would represent silence. Each discrete integer between zero and 255 would represent a particular voltage, typically presented in binary form.Because of the redundancies of speech and the inability of the human ear to detect more than a fraction of the intelligence in speech, it is possible to sample a small portion of the sound produced by a person speaking, reproduce that sound at either a later time or another place, then filter the resulting reproduction to produce a “sound” that is indistinguishable from the original source.

audio.

TDMA (Time Division Multiple Access)

Time Division Multiple Access (TDMA) today provides a times-3 increase in the number of communication links a channel can carry (just like NAMPS). Eventually TDMA is expected to take full advantage of all six time slots, allowing for six communications links in the bandwidth of a conventional AMPS channel.

TDMA, like CDMA, employs a form of phase shift keying to represent symbols. However, TDMA also compresses the digitized signal, making use of predictive algorithms to reduce the number of symbols actually transmitted.

Digitization and TDMA

Here three conversations, represented by

In the illustration on page 1 - 19 we saw how speech could be sampled at some rate. Suppose we take only one of every three samples. If our sampling rate is fast enough, and if we can compress the samples, it turns out that we can interleave several different conversations (communication links) on a single frequency. However, we also have to provide some mechanism for ensuring that the transmitter and receiver are in synchronization, and we have to provide for some alternative to the control and response tones used in conventional AMPS. All of these non-voice signals are digital and take time from the assigned time slot, leaving only a relatively small amount of time to represent voice. For this reason the digital receiver has to filter the audio to closely approximate the original

Figure 12. Digitization and TDMA

Ampli

Time

Page 31

Cellular OverviewService Manual

Digital Cellular

voice samples as viewed on oscilloscopes, are clearly shown to be nothing more than varying voltages produced by microphones. Instantaneous samples are discrete voltages. It has been shown that if the sampling rate is fast enough, it is possible to make a faithful representation of each conversation.

If these samples are then compressed, it is possible for more than a single conversation to occur on a single medium (such as a radio frequency) by sharing time slots. Here we see three conversations being shared on six time slots. The conversations shown are compressed sampled analog audio, not yet digitized.

Figure 13. Slot Assignments

Slot1Slot2Slot3Slot4Slot5Slot

Figure 14. Digitization of Voltage

Slot1Slot2Slot3Slot4Slot5Slot

2 volts

1.75 volts

1.5 volts

1.25 volts 1 volt

.75 volt

.5 volt

.25 volt

0 volt

A B C AA B C

The very first instantaneous sample has an amplitude of .625 volts represented by 01001111 (79 decimal).

This instantaneous sample has an amplitude of 1.125 volts represented by 10001111 (143 decimal).

Conventional Radio

Radio uses transmitters to convert speech to radio energy and receivers to convert radio energy back to speech. In conventional analog radio, speech is converted into varying voltages called audio by a microphone. The

A B C A B C

Digitization of Voltage

A byte, consisting of 8 bits, holds 256 possible numbers (0 through 255). If the maximum voltage we might expect from our voice samples is 2 volts, we can arbitrarily match those voltages proportionally to our byte. The result is a binary string representing voltages. We now have digital voice.

Figure 15. Convetional Radio

Microphone Speaker

audio is mixed with a carrier frequency, amplified, and propagated through space as radio energy by an antenna. At the remote receiver an antenna converts the received radio energy to varying voltages at radio frequencies. The RF energy is beat against the output from a local oscillator to produce a difference frequency called the intermediate

Page 32

Digital Cellular

frequency. The IF is processed in the IF strip, which provides filtering and amplification. A discriminator retrieves audio from the IF and the varying voltages of the audio are used to drive a speaker

TDMA Radio

TDMA radios use the same circuitry as analog radios, for the most part, but also have additional circuitry to convert analog audio to digitized form and vice versa, and to select the appropriate time slot.

Figure 16. TDMA Radio

101010101010101010101

Processing

Network

101 010101010101010101010

010 101010101010101010101

101 010101010101010101010

010 101

Processing

Network

TDMA Timeport™ P8190Cellular Overview

A/D

Slot selector

ZIF

D/A

Page 33

Accessories

Desktop Charger

Rapid Desktop Charger Single Pocket

SPN4641

Travel Charger (Power Adapter)

U.S. . . . .. . . . . . . . .. . . . . . . . . . . . . . . SPN4604

ARGENTINA . . . .. . . . . . . . . . . . . . . SPN4647

HONG KONG. . . .. . . . . . . . . . . . . . . SPN4659

PRC. . . .. . . . . . . . .. . . . . . . . . . . . . . . SPN4654

KOREA.. . . . . . . . .. . . . . . . . . . . . . . . SPN4688

BRAZIL. . . . . . . . .. . . . . . . . . . . . . . . SPN4609

Page 34

Accessories Vehicle Power Adapter (VPA)

Vehicle Power Adapter (VPA)

VPA . . .. . . . . . . . . . . . . .. . . . . . SYN4241

Headset

Jewel Case. . . . . . . . . . .. . . . . . SYN7453

TDMA Timeport™ P8190

Hands-Free Car Kit

Panther redesign HUC. . . . . . S6965

Page 35

Service Manual

Easy Installation Car Kit

Zero Install Car Kit. . . .. . . . . . SYN8130

Accessories

Page 36

Accessories

TDMA Timeport™ P8190

Page 37

TDMA Easy NAM

Programming

Introduction

The Number Assignment Module (NAM) is a section of memory that retains information about the phoneÕs characteristics, such as the assigned telephone number, system identification number, and options information.

Two methods are available to program the NAM using the keypad: Test Mode and User Mode.

Regardless of the method used, the NAM must be programmed before the phone can be placed into service. This chapter covers the NAM Programming steps for Easy NAM Programming which is the preferred programming method

User Mode Programming

Mode NAM Programming ManualÓ which describes the entry key sequences and the programming steps for User Mode NAM programming.

User Mode NAM programming steps are different from Test Mode NAM programming steps, and do not include all of the option bits available in Test Mode NAM programming.

Access to User Mode NAM programming can be disabled by Test Mode NAM programming step 11, bit C7. Detailed description on Test Mode NAM Programming can be found in the TDMA ST7797 Level 2 and Level 3 Service Manual.

The following page describes the step by step procedure for Easy NAM Programming, which is the preferred programming method.

User Mode NAM programming requires a special key sequence to enter, but can be accomplished through the telephone keypad without the use of any specialized hardware.

The telephone number can be changed up to fifteen times, after which the phone must be reset in Manual Test Mode using the command (erasing all repertory memory and initializing counters).

Some models may be available with a ÒUser

32#

Page 38

TDMA Easy NAM Programming Programming Sequence

Programming Sequence

TDMA Timeport™ P8190

Enter Programming Mode u

Enter Security Code w

Enter Phone Number y

Programming a second No.

Press , carrier system ID (from your Cellular Service Provider), , , . Phone displays " NAM 1

snd

Prog * = Yes # = No".

Press . Display prompts for Security Code "_ _ _ _ _ _".

Press , , , , , (factory set).

0+ 0+

0+ 0+ 0+

Phone displays ESN (Electronic Security Number).

Press . Phone prompts for Phone Number " Phon # _

snd

_ _ _ _ _ _ _ _ _".

Enter the entire Phone Number "_ _ _ _ _ _ _ _ _ _". Press

SEND

Phone displays " NAM Program Begins ". The phone will turn off. When you turn the phone back on, the phone number will be programmed.

Press , carrier system ID , , , , , .

SEND

ABC

Continue with steps v - y . Be sure to check with the carrier of the second telephone number for the system ID.

If you make a mistake

Try again will appear and you can re-enter the number. Press to erase a single digit or press and hold

CLR

to erase the entire entry. Press when you are finished.

CLR

snd

Page 39

TDMA Test Mode

NAM Programming

Introduction

The Number Assignment Module (NAM) is a section of memory that retains information about the phone’s characteristics, such as the assigned telephone number, system identification number, and options information. Two methods are available to program the NAM using the keypad: Test Mode and User Mode.

Regardless of the method used, the NAM must be programmed before the phone can be placed into service. This chapter covers the NAM Programming steps for Test Mode NAM Programming.

Entering Test Mode NAM Programming

The recommended Manual Test Mode setup for NAM programming phones are described in “Entering Manual Test Mode” on page 33. Refer to “Test Connections” on page 38to see the recommended test setup for performing Servicing Level manual tests.

NAM Programming Steps

There are 19 steps in the NAM. For each step, the display shows factory default NAM data. When new data is entered via the keypad the display scrolls from left to right.

Use the * key to sequentially step through the NAM data fields, entering new data as required, or skipping past factory default values for parameters that do not need to be changed.

Table 7, “Minimum Required Test Mode NAM Programming Steps”, shows the minimum required Test Mode NAM programming steps. The programming steps not listed in this table can be “stepped through”, retaining the factory default values for those steps.

Table 8, “Test Mode NAM Programming Sequence,” on page 3 lists all NAM programming steps, complete with parameters and definitions.

Table 7. Minimum Required

Programming Steps

The phone is in Status Display mode after powering up in Manual Test mode. To enter NAM Programming mode, first press the # key for at least two seconds to suspend the Status Display. Then enter 5 5 #. The phone will now be in Step 1 of the NAM.

Minimum

Service Type

Single NAM Dual NAM Enable Dual NAM

Motorola Confidential Proprietary

Required

Programming

1, 3, 4, 6, 9 11 1, 3, 4, 6

Page 40

NAM Data

TDMA Timeport™ P8190TDMA Test Mode NAM Programming

NAM Data

NAM Data is specified by the system operator. For most NAM steps, the information specified by the system operator is the same as the factory default data.

The factory default System ID (step 01) and User Telephone Number (step 03) must always be changed.

Other portions of the factory default NAM data must sometimes be modified to conform to special system requirements, or to enable/ disable certain features.

If a second phone number is to be programmed, step 11 C Option Byte, bit 6 must be set to 1. This bit enables dual-NAM operation and will cause NAM program-ming steps 1-6, 12, and 16 to be repeated for the second phone number.

User Mode Programming

User Mode NAM programming requires a special key sequence to enter, but can be accomplished through the telephone keypad without the use of any specialized hard-ware. The telephone number can be changed up to fifteen times, after which the phone must be reset in Manual Test Mode using the 32# command (erasing all repertory memory and initializing counters).

ferent from Test Mode NAM programming steps, and do not include all of the option bits available in Test Mode NAM programming. Access to User Mode NAM programming can be disabled by Test Mode NAM programming step 11, bit C7.

NOTE

Changed NAM values are not stored until pressing * after Step 19 (Step 16 if a second phone number was entered.)

IMPORTANT

Consult with the System Operator regarding NAM information. Incorrect NAM entries can cause the phone to

Some models may be available with a “User Mode NAM Programming Manual” which describes the entry key sequences and the programming steps for User Mode NAM programming.

User Mode NAM programming steps are dif-

Motorola Confidential Proprietary

Page 41

Test Mode NAM Programming Sequence

Advances to the next programming step; also programs the NAM after the last

programming step is entered.

TDMA Test Mode NAM ProgrammingService Manual

CLR

Clears the entered information and displays previously entered data for the current programming step.

Exits the programming mode without programming the NAM.

Table 8. Test Mode NAM Programming Sequence

Step

01 00000

02 10110101

03 0000000000

04 00

05 00

06 00

Factory

Default

(A7-A0)

1 0 1

0 1

System ID Number

identification.

A OPTION BYTE.

options, A7 through A0. Bit A7 (msb) is programmed first, followed by A6A0. Bits enter display on the right and scroll left.

Local Use (Bit A7).

the home area or when the group ID is matched. Assigned by system operator.

Preferred System (Bit A6).

service systems (A or B). 0 = system B; 1 = system A.

End-to-End Signaling (Bit A5).

DTMF signaling during a call. 1 = enabled, 0 = disabled.

Authentication Enable (Bit A4). Bit not used (Bit A3). Auxiliary Alert (Bit A2).

System in auxiliary alert mode and be notified of incoming calls via headlights, horn etc. 1 = enabled, 0 = disabled.

Bit not used (Bit A1). MIN MARK (Bit A0).

user’s area code will be sent with each call initiated or answered. 1 = enabled, 0 = disabled.

User 10 digit radiotelephone phone number.

system operator.

Station class mark.

Indicates maximum power step, VOX capability, and number of channels used.

Access overload class.

when accessing the system. Assigned by system operator.

Systems group ID mark.

compared during call processing. Assigned by system operator.

. Number assigned by system operator for system

The display for step 02 represents the status of eight

If set to 1 phone will respond to local control orders in

Enter 0.

When enabled, the user can place an Extended

Enter 0.

Supplied by system operator. When enabled the

A 2 digit number assigned by the system operator.

Specifies the level of priority assigned to the phone

Specifies how many bits of the system ID are

Description

Applies to units capable of operating on two

When enabled, the phone is equipped for

Enter 1.

Number is assigned by

Motorola Confidential Proprietary

Page 42

Table 8:Test Mode NAM Programming Sequence (con’t)

TDMA Timeport™ P8190TDMA Test Mode NAM Programming

07 000000

08 123

09 4

10 00000100

(B7-B0)

0 0 0 0 0

11 00001000

(C7-C0)

0 0

12 0334

Security code.

by the user to access or change “security” features such as the 3-digit unlock code or the service level.

Unlock code.

enabled by the user, the phone can be operated only by individuals who know the unlock code.

Service level.

placement restrictions if desired. 004 = no restrictions.

B OPTION BYTE

options, B7 through B0. B7 (msb) is programmed first followed by B6-B0. Bits enter display on the right and scroll left.

Bit not used (Bit B7). Bit not used (Bit B6). Bit not used (Bit B5). Bit not used (Bit B4). Single System Scan (Bit B3).

based on the setting of the preferred system bit (option bit A6). 1 = enabled, 0 = disabled.

Auto Recall (Bit B2).

one or two digit send sequence (speed dialing).

Disable Service Levels (Bit B1).

restrictions) cannot be changed by the user.

Lock Disable (Bit B0).

phone unit via the 3 digit lock code.

C OPTION BYTE

options, C7 through C0. C7 (msb) is programmed first followed by C6-C0. Bits enter display on the right and scroll left.

User Mode NAM Programming Disable (Bit C7).

Mode NAM programming cannot be accessed.

Second Number Registration (Bit C6).

the second phone number.

Bit not used (Bit C5). Auto Redial Disable (Bit C4).

minute auto redial feature.

Speaker Disable (Bit C3).

speaker when adding V.S.P. option. 1 = handset speaker disabled, 0 = handset speaker enabled.

Bit not used (Bit C2). Selectable System Scan Disable (Bit C1).

select the primary system.

Diversity Antenna Enable (Bit C0).

diversity, 1 = Diversity.

Initial Paging System.

channel. For system A enter 0333 and system B enter 0334.

A 6 digit number supplied by the user. This number is used

A 3 digit number supplied by the user. If the lock feature is

This 3 digit number supplied by the user allows various call

The display for step 10 represents the status of eight

Enter 0. Enter 0. Enter 0. Enter 0.

If set to 1, phone will scan only one system

When set to one, the user may access repertory by a

If set to 1, the service level (call

When set to 1, the user cannot lock and unlock the

The display for step 11 represents the status of eight

When set to 1, User

When set to 1, allows access to

Enter 0.

When set to 1, the user cannot access the 6-

This bit is used to disable internal handset

Enter 0.

When set to 1, the user cannot

(Extended systems only) 0 = Non-

There are 4 significant bits for the initial paging

Motorola Confidential Proprietary

Page 43

TDMA Test Mode NAM ProgrammingService Manual

Table 8:Test Mode NAM Programming Sequence (con’t)

13 0333 14 0334 15 021

16 0737

17 0708 18 0737 19 10111011

1 0 1 1

1 0 1

Initial A system channel. Initial B system channel. Dedicated Paging Channels.

Enter 021.

Secondary Initial Paging System.

secondary initial paging channel. For system A enter 708 and system B enter

737. . Secondary initial paging channels are for digital applications, providing a secondary scan for a digital channel.

Secondary Initial A system channel. Secondary Initial B system channel. D Option Byte.

options, D7 through D0. D7 (msb) is programmed first, followed by D6-D0. Bits enter display on the right and scroll to left.

Enhanced Scan Enable (Bit D7). Cellular Connection Enable (Bit D6). Long Tone DTMF Enable (Bit D5). Transportable Internal Ringer/Speaker Disable (Bit D4).

0, audio is routed to the accessory speaker of the transportable. When set to 1, audio is routed to the handset speaker. Normally set to 1.

Eight Hour Time-out Disable (Bit D3). Handset Test Mode Disable (Bit D2). Failed Page Indicator Disable (Bit D1).

tone alert feature is disabled.

Word Sync Scan Disable (Bit D0).

The display for step 16 represents the status of eight

To initialize system A enter 0333.

To initialize system B enter 0334.

Number of dedicated paging channels is 21.

There are 3 significant bits for the

To initialize system A enter 708.

To initialize system B enter 737.

Enter 1.

Normally set to 0.

Normally set to 1.

When set to

Normally set to 0.

Enter 0.

When set to 1, the failed-call

Enter 1.

NOTE

If the second phone number bit is enabled, (step 11 C Option Byte bit 6), then steps 1- 6, 12, and 16 are repeated. To store NAM data press the * key until the ’ is displayed after step 19

Motorola Confidential Proprietary

Page 44

TDMA Timeport™ P8190TDMA Test Mode NAM Programming

Motorola Confidential Proprietary

Page 45

Manual Test Mode

Introduction

Manual Test Mode software allows service personnel to monitor the telephone status on the display, and manually control tele-phone functions via the keypad.

Manual Test Mode operates at two levels: 1) Status Display level, which allows the phone to operate normally while providing status indications in the display; and 2) Servicing Level, which disables normal call-processing and allows commands to be entered through the keypad to manually control operation of the phone.

Entering Manual Test Mode

Manual Test Mode is entered by entering the following keypad sequence:

FCN 0 0 * * T E S T M O D E STO

Once this key sequence is completed the Status Display screen appears. Press and hold the # key for 2 seconds to enter in manual test mode.

Figure 19: “Connections for PCS Testing” on page 38 shows the recommended test setup.

Status Display Level

Status Display level is the power-up state in manual test mode. In this level of manual test mode the phone will place and receive calls as normal, but the display shows two lines of status information.

The display alternates between the channel number, RSSI status information, and primary status information:

• SAT frequency

• Carrier state

• Signaling tone state

• Power level

• Voice/data channel mode

• Audio states

• DVCC and BER measurements The format of this status information is

shown in Figure 17: “Test Mode Status Display (Analog Mode)” on page 35 and Figure 18: “Test Mode Status Display (Digital Mode)” on page 36.

When dialing a phone number, the status display ceases when the first digit of the phone number is entered. The telephone number is then displayed as it is entered. When the Snd, End, or Clr button is pressed, the status information display resumes. The phone remains in Status Display Mode if the # key is pressed momentarily.

Motorola Confidential Proprietary

Page 46

Servicing Level

The Servicing Level of Manual Test Mode allows service personnel to manually control operation of a phone by entering commands through the telephone keypad. Parameters such as operating channel, output power level, muting, and data trans-mission can all be selected by entering the corresponding commands.

To enter the Servicing Level, press and hold the # button for at least 2 seconds while in Status Display level (power-up state of manual test mode.)

In the Servicing Level, automatic call processing functions are disabled, and the phone is instead controlled manually by keypad commands.

TDMA Timeport™ P8190Manual Test Mode

Table 3, “Test Commands For Manual Test Mode,” on page 23 lists the commonly used manual test commands and the resulting display and telephone function for each command.

Motorola Confidential Proprietary

Page 47

Figure 17. Test Mode Status Display (Analog Mode)

Status Display Line 1

Manual Test ModeService Manual

}

Blank in Analog Mode

Channel Number

SAT Frequency (voice channel) 0=5970 Hz, 1=6000 Hz, 2=6030 Hz 3= no SAT lock

Blank in Analog Mode

Status Display Line 2

}

RSSI Reading

Transmit Audio Path

(Voice Channel)

Busy/Idle

(data channel) 0 = enabled/busy 1 = muted/idle

TX Carrier State

0 = carrier off 1 = carrier on

Signaling Tone (voice channel) Word Sync Status (data channel)

0 = off, 1 = on/sync acquired

}

RF Power Level

Steps 0-7

Motorola Confidential Proprietary

Blank

Receive Audio Path

0 = enabled 1 = muted

Channel Type

0 = voice channel 1 = data channel

Page 48

Figure 18. Test Mode Status Display (Digital

Status Display Line 1

TDMA Timeport™ P8190Manual Test Mode

1900 Channel

Assignment

800 Channel

Assignment

}

Blank

Call Processing Mode

1 = DAMPS half rate, slot 1 2 = DAMPS half rate, slot 2 3 = DAMPS half rate, slot 3 4 = DAMPS half rate, slot 4 5 = DAMPS half rate, slot 5 6 = DAMPS half rate, slot 6 7 = DAMPS full rate, slot 1 8 = DAMPS full rate, slot 2 9 = DAMPS full rate, slot 3

Status Display Line 2

}

RSSI Reading

Blank

}

Digital Verification

Color Code (1 - 255)

RF Power Level

Steps 0-7

NOTE:

800MHz channels are displayed as three digits. Channel Numbers 1000-1023 are represented on the display as A00-A23. 1900MHz channels are displayed as four digits (0002 to 1998).

TX Carrier State

0 = carrier off 1 = carrier on

Motorola Confidential Proprietary

}

Blank

Audio Paths

0 = enabled 1 = muted

Bit Error Rate

0-7

Page 49

Test Procedures

Introduction

The phone allows keypad controlled testing of various analog and digital operating parameters.

This chapter includes the keypad button functions and recommended equipment setup to use when testing a phone.

Automatic Call-Processing Tests

Most communications analyzers can simulate a cell site in order to perform automatic call-processing tests. Automatic call processing tests can be performed while the phone is in its power-up state. However, it is useful to do the tests with the phone in Test Mode Status Display.

Refer to the communications analyzers manual for details about performing call-processing tests. The following call-processing test sequence is recommended:

Handoffs should be performed between low, middle, and high frequency channels, such as, 991 (lowest frequency), 333 (middle frequency), and 799 (highest frequency). In digital mode slots 1 & 4, 2 & 5, and 3 & 6 should be verified.

Analog Test Measurements

 RX Sensitivity (SINAD)  RX Audio Distortion  TX Power Out  TX Frequency Error  TX Audio Distortion  TX Maximum Deviation  TX SAT Deviation  TX ST Deviation

Digital Test Measurements

 Digital RX Sensitivity (BER)  Digital Power Out  TX Frequency Error  Digital Modulation Stability (EVM)

1. Inbound call, analog mode

2. Outbound call, analog mode

3. Analog-to-Analog channel handoff

4. Analog-to-Digital channel handoff

5. Inbound call, digital mode

6. Outbound call, digital mode

7. Digital-to-Digital channel handoff

8. Digital-to-Analog channel handoff

The analog and digital parameters are stored in EPROM on the Transceiver Board. Each transceiver is shipped from the factory with these parameters already calibrated. However, if a board is repaired, these parameters should be measured and, if necessary, adjusted. Checking and adjusting calibration parameters is also useful as a troubleshooting/diagnostic tool to isolate defective assemblies.

Motorola Confidential Proprietary

Page 50

MCEL 2000 Modifications

The diagram below shows the modification that the MCEL 2000 needs in order to properly supply the correct operating voltage to the cellular phone.

12V DC 3.95V DC

B+ Input "I" Sense

TDMA Timeport™ P8190Test Procedures

+12Vdc

Input

+ -

SENSE

+ -

Motorola Confidential Proprietary

Page 51

Test ProceduresService Manual

Test Connections

The diagram below shows the recommended connections for testing transceivers.

Figure 22. Connections for Testing

83206A

HP83206A

HP8920B

TDMA CELLULAR ADAPTER

SINAD

8240.00

RF Gen Freq

MH z

Amplitud e

Atten Hold

Output Port

POW ER

RX TEST

AFgen2 Freq

AFgen1 Freq

KHz

AFG e n2 To

AFGen1 To

dBm

KHz

Filter 1

Filter 2

Ext Load R

0.000 11

Level

To Scr e e n

The MCEL2000 test interface and an RF adapter with a low loss RF cable is used to interface with the communications analyzer.

A variety of communications analyzers may be used. Refer to the analyzer manufacturers user manual for proper setup before starting tests.

RF Cable

TX Audio

Front view of MCEL2000

MICRO T.A.C.

MCEL2000 sierra

PORTABLE

MCEL2000 sier ra

MOBIL E

ESN SW

TEST MODE

MICRO T. A. C.

TEST

RX Audio

PORTA BL E

"I" SENSE

TEST

AUDI O

MODE

MOBI LE

B+ INPUT

3.95 VDC

Power Supply

SKN4800A (Test Cable)

12 VDC

Back View

Motorola Confidential Proprietary

Page 52

RF Cable Test

Figure 23. Duplex Test Screen

TDMA Timeport™ P8190Test Procedures

DUPLEX TEST

Tx Frequency

Tx Power

Tune Mo de

Auto / Manual

Tune Freq

834.990000

Input Port

RF In / Ant

IF Filter

15 KHz

Ext TX key

On / Off

MHz

-0.62

Rf Gen Freq

Amplitude

Atten Hold

Output Port

RF Out /

834.990000

0.0

On / Off

Dupl

MHz

dBm

Off

dBm

AF Gen1 Freq

1.0000

AFGen1 To

FM Coupling

AC / DC

Audio Out

AC / DC

AC Level

AF Anl In

Audio In

Filter 1

Off

KHz

50 Hz HPF

Filter 2

15kHz LPF

DE Emphasis

/ Off

750 us

Detector

RMS

In order to properly measure and adjust the parameters of a telephone, it is important that you use RF cabling that has minimal loss. Therefore, it is important that you test the RF cable for proper loss. This can easily be done by using the DUPLEX TEST screen of your HP8920. To test the cable, set up the DUPLEX screen as shown above.

Action:

Take the cable under test and connect it from the RF in/out port to the Duplex Out port. At this point you will be getting some type of power reading for cable loss.

Off

OffSINAD

To Screen

RF GE N RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER RADIO INT

To test the RF cable for proper loss:

 Tune Freq should be set to TX frequency: 834.990000 MHz.  RF Gen Freq should be set to same frequency (834.990000 MHz).  Tx Power should be set to read in dBm, not Watts.

If the reading you are getting shows gain (positive number,) you may need to zero the power meter. This may happen on an HP8920 whose memory has just been cleared.

To zero the meter, press the TX button on the 8920 panel. Bring the cursor down to the field under TX Pwr Zero where it reads Zero. Tap the cursor on the Zero field and it will highlight for a moment as it zeroes the meter. Set up the screen as shown above, and test your cable.

Good range: -.2 dBm through -.8 dBm

Bad cable: More than -.8 dBm

Motorola Confidential Proprietary

Page 53

Set up for Analog call

Figure 24. Call Control Screen

Test ProceduresService Manual

Set up for Analog call

Display

Data / Meas

Active Register Page Access Connect

Active Register Page Handoff Release

Order

Chng PL 0

MS Id

Phone Num 1111111111

System Type

DCCH

Cntrl Chan

Amplitude

SID

CALL CONTROL

Phone : 111-111-1111 ESN (dec) : 156-4460397 ESN (hex) : 9C440F6D SCM : Class IV, Continuous, 25 MHz

Traffic Chan Assisgnment

334

-50.0

dBm

231

Chan : -

Pwr Lvl : -

SAT :

212

5970Hz

Registration

1. Put the Test Set in Active state by selecting Active from the list on the left side of the screen.

2. Select Data from the Data/Meas field. This is the default mode.

3. Select Register from the list to register phone.

4. If the registration message has been received, the Test Set will display registration data in the upper half of the screen as shown in the sample screen above.

Page

To Screen

CALL CN T L

CALL CNFG ANL G M E AS SPEC ANL DIG MEAS

Select CALL CNTL from the To Screen

 Select System type: AMPS  Zero the RF Power meter in the:

Call Config Screen

 Set Amplitude to: -50 dBm  Set SID: Your phones System

 Select: Active  Voice Channel Assignment

Type:

 Chan: 212  Pwr Lvl: 4  SAT: 5970Hz

or press SEND on the mobile to start the conversation. 4 The Connect annunciator lights. This is the Connect state.

Origination

1 Dial the desired phone number on the mobile station and press SEND. 2 The Access annunciator will light while the Test Set signals the mobile on the assigned voice channel. 3 The connect annunciator will light if the mobile properly signals the Test Set.

1 Select page from the list on the left side of the screen. 2 If the mobile responds, you will see the Access annunciator light briefly. 3 Answer the call by raising the flip

Motorola Confidential Proprietary

Page 54

RX Sensitivity Test (SINAD)

Figure 25. RX Test Screen

RX TEST

TDMA Timeport™ P8190Test Procedures

Communications Analyzer Setup:

SINAD

8 22.25 24

AF Gen1

RF Gen Freq

879.990000

Amplitude

-116.0

Atten Hold

On / Off

Output Port

/ Dupl

RF Out

MHz

dBm

1 . 0000

AF Gen1 To

8.00

Freq

kHz

-116.0

AF Gen2 Freq

1 . 0000

RF Out

AF Gen2 To

OFF

kHz

AC Level

Ext

0.6336

Filter 1

C message

Filter 2

kHz LPF

Load R

8 . 00

Test Mode Commands:

11333# Loads synthesizer to chan

nel 333 08# Unmute receive audio path 58# Turn on compandor 474# Set volume control to level 4 356# Set RX audio path to Ext. Au

dio Path

To Scre e n

RF GEN RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER RADIO INT

 Select RX button from the Screen Con

trol panel  Set RX frequency to 879.990 MHz  Set Amplitude to -116 dBm  Set AF gen1 to 1 kHz frequency at

8 kHz deviation, using FM modula tion (PLEASE NOTE: this is for AMPS

only; NAMPS uses much lower devia tion)

 Set AF Filter 1 set to C message fil

tering

 Set AF Filter 2 to 15 kHz

Sinad measured on the communications analyzer must be more than

12dB.

Duplex SINAD can be measured with the same setup by entering 122# and the 05# test command, which turns on the transmitter at power step 2. Narrow band SINAD can be measured by entering 571# and setting the FM Deviation to 3kHz. Refer to the RX troubleshooting section for radios not within the pass specifications.

Motorola Confidential Proprietary

Page 55

TX Power Out Test

Figure 26. TX Test Screen

Test ProceduresService Manual

TX Power Out Test

TX TEST

TX Frequency

834.9900

Tx Power

Tune Mode

Auto / Manual

Tune Freq

834.990000

MHz

Tx Pwr Zero

Zero

27.49

MHZ

dBm

Input Port

RF In / Ant

If Filter

230 KHz

Ext TX Key

On / Of f

AF Anl In

FM Demod

Filter 1

50 Hz HPF

Filter 2

15 KHz LPF

De-Emphasis

750 us / Off

Detector

Pk +- Max

FM Deviation

11.58

AF F r e q

AF Gen 1 Freq

1.0000

AF Gen 1 Lvl

6.00

1.00000

KHz

Test Mode Commands:

11333# Loads synthesizer to chan

nel 333

12X# Set power level to step X,

where X is a power level from 1 to 7.

05# Turns on transmit carrier

KHz

 Select TX button from the Screen

Communications Analyzer Setup:

KHz

Control panel

 PWR is measured in dBm  Set Frequency Measurement to auto

To Screen

RF GEN RF ANL AF ANL SCOPE SPEC ANL ENCODER

DECODER

RADIO INT

or manual (display will show TX Freq.

Error)  Set TX frequency to 834.990 MHz  Set IF filter to 230 kHz  Set AF Filter 1 to 50 Hz

 Set AF Filter 2 to 15 kHz  Set AF gen1 for 1 kHz frequency at

6V level (output will go to the audio

port)

The TX Power Out specification for each portable power level is as follows:

Power Step 224dBm - 25dBm Power Step 320.7dBm - 20.9dBm Power Step 416.9dBm - 17.3dBm Power Step 512.9dBm - 13.3dBm Power Step 68.9dBm - 9.3dBm Power Step 74.9dBm - 5.3dBm

Refer to the TX troubleshooting section for radios not within the pass specifications. Note: When taking measurements, remember to compensate for cable loss.

Motorola Confidential Proprietary

Page 56

TX Frequency Error Test

Figure 27. TX Test Screen

TDMA Timeport™ P8190Test Procedures

TX TEST

TX Frequency

834.9900

Tx Power

Tune Mo de

Auto / Manual

Tune Freq

834.990000

MHz

Tx Pwr Zero

Zero

27.49

MHZ

dBm

Input Port

RF In / Ant

If Filter

230 KHz

Ext TX Key

On / Of f

AF Anl In

FM Demod

Filter 1

50 Hz HPF

Filter 2

15 KHz LPF

De-Emphasis

750 us / Off

Detector

Pk + - Max

FM Deviation

AF F r e q

AF Gen 1 Freq

AF Gen 1 Lvl

11.58

1.00000

1.0000

KHz

6.00

Test Mode Commands:

11333# Loads synthesizer to channel

333 122# Set power level to step 2 05# Turn on transmit carrier

KHz

To Screen

RF GE N RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER

RADIO INT

Communications Analyzer Setup:

 Select TX button from the Screen

Control panel

 PWR is measured in dBm  Set Frequency Measurement to auto

or manual (display will show TX Freq.

Error)  Set TX frequency to 834.990 MHz  Set IF filter to 230 kHz  Set AF Filter 1 to 50 Hz  Set AF Filter 2 to 15 kHz  Set AF gen1 for 1 kHz frequency at

6V level (output will go to the audio

port)

The frequency error measured on the communications analyzer must

be less than ± 0.5 ppm.

Motorola Confidential Proprietary

Page 57

TX Maximum Deviation Test

Figure 28. TX Test Screen

DUPLEX TEST

Tx Frequency

kHz

-0.199

Tx Power

Tune Mode

Auto / M anual

Tune Freq

834.990000

Input Port

RF In /Ant

IF Filter

230 KHz

Ext TXkey

On / Off

MHz

25.2

RF Out /

Atten Hold

Output Port

Rf Gen Freq

879.990000

Amplitude

-50.0

On / Off

Dupl

MHz

dBm

AF Gen1 Freq

1.7000

AFGen1 To

Audio Out

2700

FM Coupling

AC /DC

Audio Out

AC /DC

Test Mode Commands:

11333# Load synthesizer to channel

333

122# Set power level to power step

2 05# Turn on transmit carrier 356# Select External TX Audio path 10# Unmute TX Audio path 58# Turn on compandor

kHz

FM Deviation

AF Anl In

FMDemod

Filter 1

50 Hz HPF

Filter 2

15kHz LPF

DE Emphasis

750 us / Off

Detector

Pk+-/2

11.58

1.70000

kHz

kHzAF Freq

To Screen

RF GEN RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER RADIO INT

Test ProceduresService Manual

TX Maximum Deviation Test

Communications Analyzer Setup:

• Select DUPLEX button from the Screen Control panel

• PWR is measured in dBm

• Set Frequency Measurement to auto or manual (display will show TX

Freq. Error)

• Set Tune freq to 834.990000 MHz

• Set Input Port to RF In

• Set IF filter to 230 kHz

• Set Ext TX Key to Off

• Set RF Gen Freq to 879.990000 MHz

• Set Amplitude to -50 dBm

• Set Atten Hold to Off

• Set Output Port to Dupl

• Set AF Gen1 Freq to 1.7000 kHz

• Set AF Gen1 To to Audio Out and

2700 mV

• Set FM Coupling to AC

• Set Audio Out to AC

• Set AF Anl In to FM Demod

• Set Filter 1 to 50 Hz HPF

• Set Filter 2 to 15 kHz LPF

• Set DE Emphasis to Off

• Set Detector to Pk+-/2

View FM Deviation for reading.

TX Maximum Deviation Pass Specifications: 11.1 kHz - 11.99 kHz.

Motorola Confidential Proprietary

Page 58

TX SAT Deviation Test

Figure 29. Call Control Screen

DUPLEX TEST

Tx Frequency

-0.199

Tx Power

kHz

dBm

d B

25.2

Tune Mode

Auto / Manual

Tune Freq

834.990000

Input Port

RF In /Ant

IF Filter

15KHz

Ext TX key

On / Off

MHz

Rf Gen Freq

879.990000

Amplitud e

-50.0

Atten Hold

On / Off

Output Port

RF Out /

MHz

dBm

Dupl

AF Gen1 Freq

6.0000

AFGen1 To

2.0

FM Coupling

AC /DC

Audio Out

AC /DC

Test Mode Commands:

11333# Load synthesizer to channel

333

122# Set power level to power step

2 05# Turn on transmit carrier 251# Enable 6000 Hz SAT tone

kHz

FM Deviation

AF Anl In

FM Demod

Filter 1

50 Hz HPF

Filter 2

6kHz BPF

DE Emphasis

750 us / Off

Detector

Pk+-/2

2.000

6.00000

kHz

kHzAF Freq

To Screen

RF GEN RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER RADIO INT

TDMA Timeport™ P8190Test Procedures

Communications Analyzer Setup:

• Select DUPLEX button from the Screen Control panel

• PWR is measured in dBm

• Set Frequency Measurement to auto or manual (display will show TX

Freq. Error)

• Set Tune freq to 834.990000 MHz

• Set Input Port to RF In

• Set IF filter to 15 kHz

• Set Ext TX Key to Off

• Set RF Gen Freq to 879.990000 MHz

• Set Amplitude to -50 dBm

• Set Atten Hold to Off

• Set Output Port to Dupl

• Set AF Gen1 Freq to 6.0000 kHz

• Set AF Gen1 To to FM and 2.0 kHz

• Set FM Coupling to AC

• Set Audio Out to AC

• Set AF Anl In to FM Demod

• Set Filter 1 to 50 Hz HPF

• Set Filter 2 to 6 kHz BPF

• Set DE Emphasis to Off

• Set Detector to Pk+-/2

View FM Deviation for the reading.

The transponded SAT FM deviation specifications: 1.95 kHz - 2.2 kHz.

The demodulated signal on the communications analyzer should have an audio frequency of 6000 Hz.

Motorola Confidential Proprietary

Page 59

TX ST Deviation Test

Figure 30. TX Test Screen

Test ProceduresService Manual

TX ST Deviation Test

TX TEST

TX Frequency

834.9900

Tx Power

Tune M o de

Auto / Manual

Tune Freq

834.990000

MHz

Tx Pwr Zero

Zero

27.49

MHZ

dBm

Input Port

RF In / Ant

If Filter

230 KHz

Ext TX Key

On / Off

AF Anl In

FM Demod

Filter 1

50 Hz HPF

Filter 2

15 KHz LPF

De-Emphasis

750 us / Off

Detector

Pk +- Max

FM Deviation

AF F r e q

AF Gen 1 Freq

1.0000

AF Gen 1 Lvl

7.890

10.000 0

KHz

6.00

Test Mode Commands:

11333# Load synthesizer to channel

333

122# Set power level to power step

2 05# Turn on transmit carrier 14# Enable signaling tone

KHz

To Scree n

RF GEN RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER

RADIO INT

Communications Analyzer Setup:

 Select TX button from the Screen Con

trol panel  PWR is measured in dBm  Set Frequency Measurement to auto

or manual (display will show TX Freq.

Error)  Set TX frequency to 834.990 MHz  Set IF filter to 230 kHz  Set AF Filter 1 to 50 Hz  Set AF Filter 2 to 15 kHz  Set AF gen1 for 1 kHz frequency at

6V level (output will go to the audio

port)

View FM Deviation for reading.

The peak ST deviation measured on the communications analyzer

should be between 7.2 kHz - 8.6 kHz.

The demodulated signal on the communications analyzer should have an audio frequency of 10 kHz.

Motorola Confidential Proprietary

Page 60

Set up for TDMA call

TDMA Timeport™ P8190Test Procedures

Figure 35. Call Control Screen

Display

Data / Meas

Active Register Page Access Connect

Active Register Page Handoff Release

Cntrl Order

Send SMS

MS Id

Phone Num 1111111111

System Type

DCCH

Cntrl Ch an

Dig US PCS

Amplitude

SID

CALL CONTROL

Phone : 111-111-1111 ESN (dec) : 156-4460397 ESN (hex) : 9C440F6D SCM : Class IV, Continuous, 25 MHz Protocol Version : IS - 136 Model (hex) : 4 SW (hex) : 1 FW (hex) : 4

Traffic Chan Assisgnment

/ Analog

-50.0

231

dBm

Type : Band : Chan : Slot : Pwr Lvl : DVCC : -

Voc : -

DTC US PCS

ACELP

1 4 1

To Screen

CALL CNTL

CALL CNFG CALL CNFG 2 ANLG M E AS SPE C ANL AUTHEN DIG MEAS

Call Process

The following 4 steps need to be performed prior to beginning registration test:

1. Enter Test Mode using FNC 0, 0, *, *,

T, E, S, T, M, O, D, E, STO.

2. Perform a 51# command in Test Mode to clear the Historic List. Turn off the telephone.

3. Connect the RF connector to the radio and power on.

Registration

1. Put the Test Set in Active state by selecting Active from the list on the left side of the screen.

2. Select Data from the Data/Meas field. This is the default mode.

3. Select Register from the list to regis- ter phone.

4. If the registration message has been received, the Test Set will display registration data in the upper half of the screen as

Select CALL CNTL from the To Screen

 Select System type: DCCH  Zero the RF Power meter in the: Call

Config Screen

 Set Amplitude to: -50 dBm  Set SID: Your phones System ID  Select: Active  Traffic Channel Assignment Type:  Choose DTC to set up a Digital Traf

fic channel  Type: DTC  Chan: 1  Slot: 1  Pwr Lvl: 4  DVCC: 1

shown in the sample screen above.

Page

1 Select page from the list on the left side of the screen. 2 If the mobile responds, you will see the Access annunciator light briefly. 3 Answer the call by raising the flip or press SEND on the mobile to start the conversation. 4 The Connect annunciator lights. This is the Connect state. Data to be displayed is shown above.

Origination

Motorola Confidential Proprietary

Page 61

MAHO Measurements

Figure 36. DCCH Call Configure Screen

Test ProceduresService Manual

MAHO Measurements

DCCH CALL CONFIGURE

DCCH DVCC

128

Power Meter

Zero

Downband

Off

/ On

Access Burst

Norm

/ Abbrev

RF Path

Bypass / IQ

DTC Burst

Norm / Shorten

Country Code

310

Calling Num

Dig Sign al

/ NonStd

Std

# Neighbors

Neighbor List

Channel

10 135 36 459 70

Figure 37. Call Control Screen

Display

Data / Meas MAHO

RSSI - Curr Chan dB

CALL CONTROL

>= -51

Active Register Page Access Connect

Active Register Page Handoff Release

Order

Chng PL 4

MS Id

Phone Num 1111111111

BER %

< 0.01

System Type

DCCH

Cntrl Chan

42 Dig/Analog

Amplitude

-50.0

SID

dBm

231

Traffic Chan Assisgnment

Type : Chan : Slot : Pwr Lvl : DVCC : -

To Scre en

CALL CNT L

CALL C N F G ANLG M E A S SPEC ANL DIG MEAS

Neighbor List Channel RSSI 10 <= -113 dBm 135 <= -113 dBm 36 -89 dBm 459 <= -113 dBm 70 <= -113 dBm

DTC

1 4 1

To Screen

CALL CNT L

CALL C N FG ANLG M E AS SPEC ANL DIG MEAS

Setting up the MAHO measurement

1 Select CALL CNFG from the CALL

CONTROLs To Screen.

2 Set the number of neighbors (up to 6)

with the field # Neighbors.

3 Neighbor List Channel fields ap

pear below the # Neighbors field.

4 Set the channel number of each neigh

bor channel.

Measuring MAHO

1 From CALL CONTROL screen, set

up a call (Test Set must be in Connect mode).

2 Select Meas from the Data / Meas

field.

3 Select the field that has appeared be

low Data / Meas. 4 Select MAHO from the list of choices. 5 The RSSI and BER of the current

channel are reported, as well as the

RSSI of the designated neighbor chan

nels.

MAHO (Mobile Assisted HandOff) is actually a measurement, not a handoff. The reported results are used by a base station to select the channel for the handoff.

The mobile performs the measurements, and

them reports the results back to the base station. The mobile measures the RSSI of neighboring channels, as instructed by the base station. It also measures and reports the RSSI and BER of the current channel.

Motorola Confidential Proprietary

Page 62

BER Measurements

Figure 37. Digital Measurements Screen

TDMA Timeport™ P8190Test Procedures

DIGITAL MEASUREMENTS

DTC Meas

BER Arm Disarm

Amplitude

-110.0

dBm

BER Bits

10000

Trig Type

2x Frame 128

Traffic Chan

333

Slot

DVCC

Cntrl Chan

DCCH DVCC

Loopback BER

2.8995

Bits Read: 10140

To Screen

CALL CNTL

CALL CNFG ANLG MEAS SPEC ANL DIG MEAS

Test Mode Commands:

1 Enter 576# (Loopback mode) 2 11333# (Loads Synthesizer Channel) 3 Display prompt Y (enter desired

time slot, for this test enter 1) 4 Set power level to step 2 (122#) 5 Turn on transmitt carrier (05#)

BER Measurement Procedure

1 Make sure the Test Set is in Active

mode.

2 Select DIG MEAS from the To

Screen menu.

3 Select the DTC Meas field to display

a list of available tests. 4 Select BER from the list. 5 Enter the number of bits to be mea

sured in the BER Bits field. (Note: the

number of bits actually read will be

calculated in whole frames.) 6 Amplitude should be set to -110 dBm. 7 Traffic Chan to 333. 8 Slot to 1. 9 DVCC to 1. 10 Cntrl Chan to 42. 11 DCCH DVCC to 128. 12 Put the mobile into test mode and en

ter the proper test commands for BER

reading. 13 Select ARM. 14 After the actual number of bits has

been transmitted and received, the

BER should be displayed.

The BER measured on the communications analyzer must be less than or equal to 3%.

Motorola Confidential Proprietary

Page 63

TX Power Measurements

Figure 38. Digital Measurements Screen

Test ProceduresService Manual

TX Power Measurements

DTC Meas

Avg Power

DIGITAL MEASUREMENTS

Average Power

dBm

24.1898

Amplitude

-50.0

TX Pwr Det

CW Mode

Trig Type

2X Frame

dBm

Traffic Chan

333

Slot

DVCC

Test Mode Commands:

1 Enter 575# (Digital signaling mode) 2 11333# (Loads synthesizer Channel) 3 Display prompt Y (enter time slot) 4 Set power level to step 2 (122#) 5 Turn on transmitt carrier (05#)

To Screen

CALL CNTL

CALL CNFG ANLG MEAS SPEC ANL DIG MEAS

Digital TX Power Out Test Procedure

1 Make sure the Test Set is in Active

mode.

2 Select DIG MEAS from the To

Screen.

3 Select the DTC Meas field. This

shows the To Screen with a list of

available tests. 4 Select AVG Power. 5 Traffic Chan should be set to 333. 6 Put the mobile into test mode. 7 Make Digital TX Power Out measure

ments.

Digital TX power step 2 specifications is:

25.0 dBm - 26.0 dBm minus cable loss.

You can also use Digital Call processing to make these measurements.

Motorola Confidential Proprietary

Page 64

TX Frequency Error Measurements

Figure 39. Digital Measurements Screen

TDMA Timeport™ P8190Test Procedures

DTC Meas

EVM 1

Amplitude

-50.0

Pwr Gain

/ Hold

Auto

20 dB

Trig Type

2X Frame

dBm

DIGITAL MEASUREMENTS

Frequency Error

kHz

EVM

0.0081

TX Power

dB Peak EVM

-2.35879

Traffic Chan

333

Slot

DVCC

3.9683

11.6270

To Screen

CALL CNTL

CALL CNFG ANLG MEAS SPEC ANL DIG MEAS

Test Mode Commands:

1 Enter 575# (Digital signaling mode) 2 11333# (Loads synthesizer Channel) 3 Display prompt Y (enter time slot) 4 Set power level to step 2 (122#) 5 Turn on transmitt carrier (05#)

TX Frequency Error Measurement Test

1 Make sure the Test Set is in Active

mode.

2 Select DIG MEAS from the To

Screen.

3 Select the DTC Meas field. This

shows the To Screen with a list of

available tests. 4 Select EVM 1. 5 Traffic Chan should be set to 333. 6 Put the mobile into test mode. 7 Frequency error is displayed.

The frequency error measured on the communications analyzer must be ±200Hz.

You can also use Digital Call processing to make these measurements.

Motorola Confidential Proprietary

Page 65

EVM Measurements

Figure 40. Digital Measurements Screen

Test ProceduresService Manual

EVM Measurements

DTC Meas

EVM 1

Amplitude

-50.0

Pwr Gain

/ Hold

Auto

20 dB

Trig Type

2X Frame

dBm

DIGITAL MEASUREMENTS

Frequency Error

kHz

EVM

0.0081

TX Power

dB Peak EVM

-2.35879

Traffic Chan

333

Slot

DVCC

3.9683

11.6270

To Screen

CALL CNTL

CALL CNFG ANLG MEAS SPEC ANL DIG MEAS

Test Mode Commands:

1 Enter 575# (Digital signaling mode) 2 11333# (Loads synthesizer Channel) 3 Display prompt Y (enter time slot) 4 Set power level to step 2 (122#) 5 Turn on transmitt carrier (05#)

TX Frequency Error Measurement Test

1 Make sure the Test Set is in Active

mode.

2 Select DIG MEAS from the To

Screen.

3 Select the DTC Meas field. This

shows the To Screen with a list of available tests.

4 Select EVM 1. EVM 10 can also be

selected, it measures a 10 burst aver

age. 5 Traffic Chan should be set to 333. 6 Put the mobile into test mode. 7 EVM is displayed.

The 10 burst average EVM measured should be less than or equal to 10%.

You can also use Digital Call processing to make these measurements.

Motorola Confidential Proprietary

Page 66

TDMA Timeport™ P8190Test Procedures

Motorola Confidential Proprietary

Page 67

NOTE

Service personnel should be familiar with all of the following information before attempting unit disassembly.

Disassembly

Introduction

To perform most repairs, the unit must be disassembled in order to gain access to the various internal components. Reasonable care should be taken in order to avoid damaging or stressing the housing and internal components. Motorola recommends the use of a properly grounded high impedance conductive wrist strap while performing any of these procedures.

CAUTION

Many of the integrated circuit devices used in this equipment are vulnerable to damage from static charges. An anti-static wrist band, connected to an anti-static (conductive) work surface, must be worn during all phases of disassembly, repair, and reassembly.

Recommended T ools

The following tools are recommended for use during the disassembly and reassembly of the StarTAC.

¥ Anti-Static Mat Kit (RPX-4307A);

includes:

Ñ Anti-Static Mat 66-80387A959

Ñ Ground Cord 66-80387A989

Ñ Wrist Band 42-80385A59

¥ Plastic Prying Tool SLN7223A

¥ Antenna Tool SYN5179A

¥ Tweezers

¥ Disassembly Fixture 8185677C02

Transceiver Disassembly

The preferred method for transceiver disassembly is using the disassembly fixture.

Refer to page 17 for step by step instructions on using the disassembly fixture.

Motorola Conﬁdential Proprietary

Page 68

Disassembly Antenna Removal

Antenna Removal

Step 1.

Step 2.

Step 3.

Turn off the telephone.

Press down on the batteryÕs tab and remove the battery from the housing.

Using the antenna removal tool, turn the antenna counterclockwise until the antenna is free from the phone housing. For the stubby antenna you can use your fingers to turn the antenna counterclockwise until the antenna is free from the phone housing.

TDMA Timeport™ P8190

Opening Housing

Step 1.

With flat surface of tool facing up, insert housing opener at a 45¼ angle. Make sure you can see top of tool in seam.

Motorola Conﬁdential Proprietary

Page 69

Service Manual

Step 2.

Press and push corner outwards with left thumb while right hand twists phone.

Step 3.

After phone has started to open, lift at antenna collar to release entire side.

Disassembly

Opening Housing

Step 4.

Using the small plastic prying tool, slide under housing all the way to corner and lift housing off corner.

Motorola Conﬁdential Proprietary

Page 70

Disassembly Opening Housing

Step 5.

With flat surface of tool facing up, insert housing opener at a 45¼ angle. Make sure you can see top of tool in seam.

TDMA Timeport™ P8190

Step 6.

Grasp the backhousing and pull the backhousing off going straight across phone.

Motorola Conﬁdential Proprietary

Page 71

Service Manual

Board Remova

Step 1.

Open the flex connector and pull out the flex.

Disassembly

Board Removal

Step 2.

Step 3.

Using the plastic prying tool, pry the side tabs away from the assembly to allow it to be easily removed.

Starting at the top of the board, using your thumb and index finger, lift the board assembly out of the front housing

Motorola Conﬁdential Proprietary

Page 72

Disassembly Board Removal

Step 4.

Using your index finger, lift and seperate the display board and audio-logic board assembly from the transceiver board.

TDMA Timeport™ P8190

Motorola Conﬁdential Proprietary

Page 73

Service Manual

Flip Removal

Step 1.

Using the pointed end of the plastic disassembly tool, pry off the left side of the cover.

Disassembly

Flip Removal

Step 2.

Using the pointed end of the plastic prying tool, insert it on the right side of the locking tab.

While pushing inward, force the locking tab to the left to release.

Motorola Conﬁdential Proprietary

Page 74

Disassembly Flip Removal

Step 3.

Once the tab is released, peel off and slide the cover away from the flip.

TDMA Timeport™ P8190

Step 4.

Remove the flip by pulling up on the hinge pin side and out on the other side.

The hinge shaft may come loose from the flip.

Motorola Conﬁdential Proprietary

Page 75

Service Manual

Speaker / Vibrator Removal

Step 1.

Rest flip housing on a flat surface. Slip the tweezers between front housing and battery contacts.

Pry up to unsnap front housing and battery contacts.

The speaker, vibrator, and flex should be exposed.

Disassembly

Speaker / Vibrator Removal

Motorola Conﬁdential Proprietary

Page 76

Disassembly Speaker / Vibrator Removal

TDMA Timeport™ P8190

Motorola Conﬁdential Proprietary

Page 77

Service Manual

Opening Housing using ﬁxture

Using the fixture (8185677G02) to the right and following the order of operation directions that is etched on the fixture itself, will allow you to open the StarTAC radio, causing minimal damage to the housing.

Following is the step by step procedure on how to use this fixture

Step 1.

Open the flip of the StarTAC radio and insert it into the fixture (8185677G02) as shown to the right.

Disassembly

Opening Housing using ﬁxture

12 3

ORDER OF OPERATION 3-1-2-1-2-3

Step 2.

Connect the two tooling pins into the radioÕs opening ports and lock them by engaging lever 3 as shown to the right.

Motorola Conﬁdential Proprietary

Page 78

Disassembly Opening Housing using ﬁxture

Step 3.

Engage lever 1 followed by lever 2 as shown to the right.

TDMA Timeport™ P8190

Lever 1

Lever 2

Step 4.

Disengage lever 1 to detach rear housing, followed by lever 2 then lever 3. Remove the radio from fixture and remove the rear housing.

Go to the Board Removal section of this manual located on page 67 for instruction on how to remove the board from its housing.

Motorola Conﬁdential Proprietary

Page 79

Service Manual

Board Assembly

Step 1.

Step 2.

Place the display and audio logic board on top of RF board and press firmly making sure your Inter connector is properly connected.

To place the board back into the housing, pry the side tabs away from the board assembly to allow it to be re-inserted.

Reassembly

Board Assembly

Step 3.

Insert the flex into connector and close flex connector.

Motorola Conﬁdential Proprietary

Page 80

Reassembly Closing housing

Closing housing

Step 1.

Step 2.

Place backhousing on phone making sure side snaps clip the backhousing and push forward snapping everything back in place.

Insert antenna and with the antenna removal tool, turn the antenna clockwise until it locks into place. Be careful not to apply too much pressure, as that would damage the antenna. For the stubby antenna you can use your fingers to turn the antenna clockwise until it locks into place.

TDMA Timeport™ P8190

Motorola Conﬁdential Proprietary

Page 81

Parts List

Introduction

Motorola maintains a parts office staffed to process parts orders, identify part numbers, and otherwise assist in the maintenance and repair of Motorola Cellular products. Orders for all parts listed in this document should be directed to the following Motorola International Logistics Department:

Accessories and Aftermarket (AAD) Schaumburg, IL, USA

Domestic Customer Service: 1-800-422-4210 Hours: 7am - 7pm US Central Time

International Customer Service: 1-847-538-8023 Hours: 8am - 6:30pm US Central Time

Mechanical Explosion

The Mechanical explosion contains a table of mechanical part numbers that may change after publication of this manual. For an updated list of part numbers contact an AAD representative at the numbers listed above.

When ordering replacement parts or equipment information, the complete identification number should be included. This applies to all components, kits, and chassis. If the component part number is not known, the order should include the number of the chassis or kit of which it is a part, and sufficient description of the desired component to identify it.

Motorola Confidential Proprietary 69

Page 82

Mechanical Explosion TDMA Timeport™ P8190

4709038K02

R.SHAFT W/COVER

0585701K01

FLEX LABEL

FLEX ASSY.

REAR FLIP COVER

FLIP HSG.

161718

0185798K01

0585702K01

5009135L07

0185693K01

5485942H01

FLEX BARREL

FRT. HSG.

0785967J01

-0185815K01

3885696K18

5509242E01

TDMA TIMEPORT P8190

ALERT GROMMET

MIC. GROMMET

REAR HSG.

MIC.

SPACER

KEYPAD

SPRING ASSY.

PARTS ARE USED IN ASSY.

8585965H01

0187367K03

0104976Z02

N/A

0185697K01

0109133U08

-800MHZ

-DUAL

ANTENNA

ANTENNA TUBE.

ANTENNA

31456

KYBD W/DISPLAY

RF BRD.

LENS

VOL.GROMMET

Motorola Confidential Proprietary

Page 83

Service Manual

Electrical Parts

Reference Designator

A2 C10 C100 C1000 C1001 C1002 C1003 C1004 C1005 C1006 C1008 C1009 C101 C1010 C1011 C1012 C1013 C1014 C1015 C1016 C1017 C1018 C1019 C102 C1020 C1021 C1022 C1023 C103 C104 C105 C106 C107 C1070 C1071 C1072 C1073 C1074 C1075 C1076 C108 C109 C1093 C11 C110 C111 C112 C113

Part Number

39-85833H01 21-13743N40 21-13743N24 21-13743M24 21-13741F49 21-13743E20 21-13743E20 21-13743M24 21-13743M24 21-13743M24 21-13743N40 21-13743N40 21-13743N19 21-13743N40 21-13743N40 21-13743E20 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743E20 21-13743N40 21-13928P04 21-13743M24 21-13743M24 21-13743E20 21-13743E20 21-13743E20 21-13743A23 21-13743L41 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743N50 21-13743N40 21-13743N40 21-13743L17 21-13743A23 21-13743M24 21-13743N20 21-13743E20 21-13743L17 21-13743L41 21-13743L05

Reference Designator

C114 C115 C1200 C121 C122 C123 C124 C125 C126 C127 C128 C129 C131 C132 C133 C134 C135 C14 C15 C150 C1501 C1502 C1503 C1504 C1505 C1506 C1507 C1508 C1509 C151 C1510 C1511 C1513 C1514 C1515 C1516 C1518 C1519 C152 C1520 C1521 C1522 C1523 C1528 C153 C1530 C1531 C1532

Part Number

21-13743L17 21-13743L41 21-13928P04 21-13743N30 21-13743N30 21-13743L01 21-13743E07 21-13743L01 21-13743L05 21-13743L11 21-13743L17 21-13741A59 21-13741F39 21-13743E20 21-13743N50 21-13743L41 21-13743N26 21-13743N34 21-13743L17 21-13743L41 21-13928G01 21-13743N24 21-13743N24 21-13743M24 23-11049A62 23-11049A59 21-13743E20 23-11049A59 23-11049A62 21-13743N40 21-13743N40 21-13743N40 21-13743L05 21-13743N50 21-13743E20 21-13928N01 23-11049A89 21-13743L01 21-13743N35 21-13743L01 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743N37 23-11049A59 23-11049A59 21-13743N40

Reference Designator

C1533 C1534 C1535 C1536 C1537 C1538 C1539 C1540 C1541 C1542 C1545 C1547 C1550 C1551 C1552 C1553 C1555 C1560 C1562 C1563 C1564 C1570 C1571 C1572 C1574 C1575 C1580 C1581 C1582 C1583 C16 C1700 C1701 C1702 C1710 C1711 C1721 C1722 C18 C1800 C1801 C1802 C1803 C1804 C1805 C18853 C18858 C18860

Part Number

21-13928N01 21-13743B29 21-13743N40 21-13743N40 21-13928N01 21-13743L11 21-13743N28 21-13743N40 21-13928N01 21-13743E20 21-13928N01 21-13743N40 21-13743E20 21-13743E20 23-11049A62 23-11049A62 23-11049A62 21-13743M24 21-13928L05 21-13928L05 21-13743L41 21-13743E20 21-13743E20 21-13743E20 21-13743N50 21-13743N50 21-13743N40 21-13743E20 21-13743N40 21-13743N40 21-13743N26 21-13743M24 21-13743M24 21-13743M24 21-13743E20 21-13743N40 21-13743N40 23-11049A62 21-13743N14 21-13743L41 21-13743E07 21-13743L25 21-13743N50 21-13743L41 21-13743L41 21-13743N50 21-13743N40 21-13743N40

Page 84

Electrical Parts List

TDMA Timeport™ P8190

Reference Designator

C18861 C18862 C18871 C18873 C18874 C19 C1900 C1902 C1903 C1904 C1905 C1906 C1910 C1911 C20 C201 C202 C203 C204 C205 C21 C22 C23 C24 C25 C251 C252 C253 C261 C262 C263 C272 C273 C274 C30 C300 C302 C303 C304 C305 C306 C307 C308 C309 C31 C310 C311 C312

Part Number

21-13743E20 23-11049A62 21-13743L41 21-13743N30 21-13743N03 21-13743N01 21-13743G26 21-13743M24 21-13743M24 21-13743M24 21-13743M24 21-13743M24 21-13743G26 21-13743N50 21-13743N23 21-13743N40 21-13743N40 21-13743N40 21-13743L41 21-13743N40 21-13743N12 21-13743N18 21-13743N01 21-13743L17 21-13743L17 21-13928C03 21-13743F16 21-13743L41 21-13743L41 21-13743F16 21-13743L41 21-13743L27 21-13743L41 21-13743L41 21-13743N30 21-13743N40 21-13743L17 23-11049A40 21-13743N50 21-13743L17 21-13743E20 21-13743N09 21-13743L17 21-13743L01 21-13743N08 21-13743L01 21-13743N32 21-13743N32

Reference Designator

C313 C315 C316 C317 C32 C33 C333 C334 C335 C339 C34 C342 C35 C350 C351 C36 C37 C38 C389 C395 C399 C40 C400 C401 C402 C404 C405 C406 C407 C41 C410 C411 C412 C413 C414 C42 C425 C426 C427 C43 C447 C451 C452 C454 C455 C460 C462 C487

Part Number

21-13743L27 21-13741A61 21-13743N50 21-13743L27 21-13743N30 21-13743N08 21-13743N67 21-13743L41 21-13743N40 21-13743N40 21-13743N40 21-13743N40 21-13743L17 21-13743N03 06-62057M01 21-13743N30 24-09154M56 21-13743N05 21-13743N30 21-13743L17 21-13743L17 24-09154M60 21-13743N40 21-13743N40 21-13743L41 21-13743N40 21-13743N24 21-13743N40 21-13743N30 21-13743N30 21-13743N05 21-13743N26 21-13743N26 21-13743N05 21-13743N05 21-13743N40 21-13743N40 21-13743L41 21-13743N26 21-13743N40 21-13743N26 06-62057M74 21-13743N20 21-13743L17 21-13928N01 21-13740F05 21-13743N40 21-13743N40

Reference Designator

C499 C501 C502 C503 C504 C505 C506 C508 C509 C510 C511 C512 C513 C515 C599 C69 C70 C720 C721 C750 C751 C752 C753 C758 C764 C771 C773 C774 C775 C776 C777 C778 C780 C783 C800 C802 C803 C804 C805 C806 C809 C810 C811 C812 C813 C814 C815 C821

Part Number

21-13743N67 21-13743N28 21-13743L41 21-13743N28 21-13743L41 21-13743L41 21-13743N28 21-13743N40 21-13743N40 21-13743N09 21-13743N13 21-13743N28 21-13743N28 21-13743N09 21-13743N50 21-13743L17 21-13743N38 21-13743N40 21-13743N28 21-13743N40 21-13743N40 21-13743N40 21-13743L17 21-13743M24 21-13743N40 21-13743N28 21-13743N40 21-13743N28 21-13743N40 21-13743N28 21-13740F05 21-13743N50 21-13743N50 21-13743N01 21-13743N40 21-13743N24 21-13743N15 21-13743N40 21-13743N40 21-13743N26 21-13743N23 21-13743N24 21-13743N11 21-13743N40 21-13743N15 21-13743N69 21-13743N40 21-13743N40

Page 85

Service Manual

Electrical Parts

Reference Designator

C822 C823 C824 C825 C826 C827 C828 C829 C830 C831 C833 C834 C835 C882 C883 C884 C885 C886 C887 C888 C898 C899 C901 C903 C904 C906 C907 C911 C912 C913 C914 C915 C920 C9910 C998 CR100 CR1001 CR1051 CR1070 CR1071 CR1072 CR1100 CR1540 CR1541 CR1555 CR1560 CR1561 CR1562

Part Number

21-13743N40 21-13743N15 21-13743N69 21-13743L17 21-13743N40 21-13743L17 21-13743N40 23-03770S08 21-13743N26 21-13743N40 21-13743N14 21-13743N14 21-13743L17 21-13741F41 21-13741F25 08-09084T44 21-13740F67 21-09370C01 21-13741F25 21-13743N40 21-13743L41 21-13743N40 21-13743N30 21-13743N17 21-13743N24 21-13743N24 21-13743N24 21-13743N09 21-13743N08 21-13743N12 21-13743N09 21-13743M24 21-13743N11 21-13743N40 21-13928N01 48-09877C08 48-09606E07 48-09118D02 48-09788E06 48-09788E06 48-13830A70 48-09788E06 48-09606E08 48-09606E02 48-09653F07 48-09606E08 48-09606E02 48-09653F07

Reference Designator

CR300 CR301 CR302 CR501 CR502 CR503 CR504 CR730 CR750 CR751 CR810 CR821 CR822 CR910 FL10 FL20 FL30 FL350 FL413 FL450 FL452 FL453 FL454 J3 J600 J650 J810 J811 J812 J813 JFLEX JIB L100 L101 L11 L12 L13 L150 L1550 L18 L20 L21 L22 L23 L24 L302 L303 L31

Part Number

48-09877C08 48-09877C08 48-09948D13 48-09948D33 48-09948D33 48-09948D12 48-09948D33 48-09606E02 48-13830A70 48-09788E06 48-09606E02 48-09948D12 48-09948D12 48-09606E02 91-03913K04 91-03917K02 91-85861J02 91-03913K06 91-85623G03 91-09361K01 91-03913K03 91-85911J01 91-03913K03 09-09449B04 09-09195E01|l 09-09399T03 39-09578M01 39-09578M01 39-09578M01 39-09578M01 09-09059E01 28-09454C02 24-09414M31 24-09414M09 24-09646M78 24-09646M79 24-09154M62 24-62587Q53 24-09154M71 24-09154M68 24-09646M73 24-09704K51 21-13741A21 24-04574Z13 24-62587Q53 24-09414M17 24-09414M12 24-09154M59

Reference Designator

L32 L34 L351 L361 L378 L400 L401 L403 L404 L405 L406 L407 L450 L451 L452 L502 L503 L504 L69 L782 L783 L784 L785 L786 L800 L802 L803 L813 L821 L822 L833 L901 LS1 Q1001 Q1003 Q1005 Q1100 Q1101 Q1102 Q15 Q1501 Q151 Q1515 Q152 Q1551 Q1561 Q1562 Q1563

Part Number

24-09154M66 24-09154M60 24-62587V33 24-09154M65 24-09154M65 24-09154M57 24-09154M63 24-09154M51 24-09646M98 24-09646M98 24-09154M60 24-09154M58 24-09594M24 24-09154M68 24-09154M68 24-09154M55 24-09154M60 24-09154M62 24-09154M12 24-09646M93 24-09646M97 24-09646M78 24-09646M98 24-09646M91 24-09348J08 24-09154M57 24-09154M63 24-09154M63 24-09646M97 24-09646M97 24-09154M12 24-09646M80 50-09365S01 48-09579E02 48-09579E02 48-09605E02 48-09579E29 48-09579E36 48-09939C02 48-09579E02 48-09579E42 48-09579E24 48-09939C04 48-09605E02 48-09940E02 48-09579E27 48-09807C30 48-09807C30

Page 86

TDMA Timeport™ P8190Electrical Parts List

Reference Designator

Q1571 Q1573 Q1574 Q1710 Q1711 Q1712 Q1720 Q1721 Q1722 Q1802 Q1803 Q1804 Q1831 Q1832 Q301 Q351 Q391 Q401 Q475 Q501 Q502 Q503 Q505 Q600 Q642 Q69 Q700 Q702 Q810 Q811 Q820 Q821 Q831 Q833 Q834 Q880 Q901 Q910 R10 R1000 R10004 R1001 R10013 R10014 R10017 R10018 R10019 R10021

Part Number

48-09807C32 48-09807C32 48-09579E40 48-09605E02 48-09607E04 48-09605E02 51-09781E93 48-09579E36 48-09605E02 48-09579E02 48-09579E02 48-09579E02 48-09579E02 48-09579E02 48-09579E02 48-09579E43 48-09527E24 48-09527E22 48-09579E42 48-09607E05 48-09527E18 48-09579E30 48-09579E02 48-09939C02 48-09579E39 48-09527E24 48-09579E02 48-09608E03 48-09579E24 48-09579E24 48-09607E05 48-09607E05 48-09807C32 48-09527E24 48-09579E24 48-09579E30 48-09807C32 48-09579E24 06-62057N09 06-62057N03 06-62057M90 06-62057N03 06-62057N15 06-62057N15 06-62057M98 06-62057M38 06-62057N15 06-62057M98

Reference Designator

R10023 R10024 R1005 R1008 R1009 R1010 R1011 R1012 R1013 R1014 R1020 R1030 R1031 R1032 R1036 R1050 R1056 R1057 R1058 R1059 R1070 R1071 R1090 R1092 R11 R1100 R1101 R1102 R1103 R1105 R1106 R1200 R1201 R1203 R1204 R1205 R121 R122 R131 R145 R15 R151 R1512 R1513 R1514 R1515 R1516 R1517

Part Number

06-62057M26 06-62057M66 06-62057M98 06-62057M98 06-62057M26 06-62057M98 06-62057N03 06-62057M74 06-62057M74 06-62057N23 06-62057M84 06-62057N09 06-62057N15 06-62057N15 06-62057M84 06-62057N15 06-62057N23 06-62057N23 06-62057M61 06-62057M50 06-62057M90 06-62057M50 06-62057M01 06-62057N15 06-62057N09 06-62057V07 06-62057V02 06-62057M98 06-62057M98 06-62057N15 06-62057M98 06-62057M90 06-62057M98 06-62057M98 06-62057N23 06-62057M74 06-62057M98 06-62057M90 06-62057M74 06-62057M01 06-62057N15 06-62057N03 06-62057M01 06-62057M01 06-62057M01 06-62057M98 06-62057M98 06-62057M98

Reference Designator

R1518 R152 R1521 R1522 R1523 R1524 R153 R1530 R1531 R1532 R1533 R1534 R1535 R1536 R1537 R1538 R1539 R154 R1540 R1541 R1550 R1553 R1554 R1555 R1561 R1563 R1564 R1565 R1566 R1573 R1574 R1575 R1576 R1577 R1580 R1581 R1590 R1708 R1711 R1712 R1713 R1720 R1800 R1801 R1804 R1806 R1810 R1811

Part Number

06-62057M98 06-62057N15 06-62057N31 06-62057N23 06-62057M82 06-62057M98 06-62057N09 06-62057N17 06-62057N09 06-62057N23 06-62057N31 06-62057M90 06-62057M66 06-62057M54 06-62057M98 06-62057M74 06-62057M36 06-62057M67 06-62057N15 06-62057M58 06-62057M01 06-62057M98 06-62057N13 06-62057M01 06-62057M92 06-62057N15 06-62057N15 06-62057N47 06-09175L02 06-60076N49 06-62057N23 06-62057N47 06-62057M01 06-62057M01 06-62057M98 06-62057M82 06-62057M01 06-62057N33 06-62057N15 06-62057N23 06-62057N23 06-62057N23 06-62057N11 06-62057M01 06-62057M82 06-62057N16 06-62057N17 06-62057N17

Page 87

Service Manual

Electrical Parts

Reference Designator

R1820 R1830 R1831 R1900 R1901 R1902 R1905 R1910 R1911 R1912 R1913 R1914 R20 R201 R301 R302 R303 R304 R305 R306 R308 R311 R341 R342 R391 R392 R393 R403 R405 R406 R408 R409 R41 R425 R45 R450 R451 R498 R499 R501 R502 R503 R504 R505 R506 R507 R508 R509

Part Number

06-62057N23 06-62057N15 06-62057M01 06-62057M26 06-62057M01 06-62057M01 06-62057M01 06-62057M90 06-62057N15 06-62057N11 06-62057N15 06-62057M01 06-62057M86 06-62057M43 06-62057M72 06-62057N17 06-62057N01 06-62057N13 06-62057M81 06-62057N06 06-62057M54 06-62057M43 06-62057N13 06-62057N07 06-62057M96 06-62057N03 06-62057M64 06-62057N13 06-62057M34 06-62057M85 06-62057M26 06-62057M82 06-62057M43 06-62057N13 06-62057M26 06-62057M50 06-62057M43 06-62057M98 06-62057M98 06-62057M46 06-62057M98 06-62057M90 06-62057M90 06-62057N11 06-62057M76 06-62057M62 06-62057M38 06-62057M62

Reference Designator

R510 R642 R643 R69 R70 R710 R720 R721 R722 R723 R724 R725 R726 R727 R728 R729 R730 R731 R732 R733 R734 R735 R736 R737 R738 R739 R740 R741 R742 R743 R744 R745 R746 R747 R748 R749 R750 R761 R762 R777 R800 R801 R802 R803 R804 R810 R811 R812

Part Number

06-62057M50 06-62057N23 06-62057N23 06-62057M39 06-62057N17 06-62057M82 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M90 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057M74 06-62057N15 06-62057N15 06-62057M50 06-62057M61 06-62057M26 06-62057M95 06-62057M78 06-62057M36 06-62057M98 06-62057M76 06-62057M43

Reference Designator

R813 R821 R822 R831 R833 R834 R881 R882 R883 R893 R906 R907 R908 R910 R911 R999 S1 S2 S3 U1000 U1003 U11 U110 U1100 U1200 U1300 U150 U1500 U1501 U1700 U1800 U1900 U1901 U301 U306 U411 U700 U701 U704 U801 U901 VR1500 XFMR377 Y1500

Part Number

06-62057M36 06-60076N36 06-60076N36 06-62057M98 06-62057M39 06-62057N19 06-62057M92 06-62057N03 06-62057M92 06-62057M94 06-62057M82 06-62057M80 06-62057M66 21-13743N28 06-62057M66 06-62057M28 40-09060E04 40-09060E04 40-09060E04 51-09841C53 51-99423A01 51-09940K33 51-09879E24 51-09817F17 51-99404A01 51-09509A16 48-09443R06 51-09879E42 51-09817F27 51-09962C16 51-09817F34 51-99400C02 51-99396A01 51-09879E25 48-09283D38 48-87716K01 51-09522E35 51-09522E10 51-09572E19 51-09730C16 51-09730C15 48-09788E06 58-85758J03 48-09995L08

Page 88

Parts List

TDMA Timeport™ P8190

Motorola Conﬁdential Proprietary

Page 89

Theory of Operation

Antenna Circuit

Two RF ports are designed in this transceiver; internal antenna and external antenna. An RF switch controls which antenna path is going to be used during operation.

The internal antenna will be used only when there is no load at the EXT_ANT port.

RX Front End IC

The Front End IC is used to remove the RX carrier frequency and produce the RX IF signal. It also has some internal buffers for the receive signals and the VCO signals.

The RX signal is amplified within the Front End IC and then routed to an exter-nal filter. The signal is then injected back into the Front End IC and is mixed with the VCO and the result is the IF signal which is filtered prior to entering the Custom IC.

The ZIF implements the back end of the receiver. The incoming signal is attenuated, amplified and mixed down to an extremely low frequency (Baseband)-not quite DC. The first amplifier and an Automatic Gain Control (AGC) circuit adjusts the amplifier gain to maintain a constant level in the baseband filter.

The first mixing that occurs in the ZIF requires a 2nd Local Oscillator that is running at 221.184MHz. The 2nd LO is divided down then phased shifted before being mixed with the IF signal., producing the baseband signal

The baseband signal is low-pass filtered using a programmable low-pass filter. In TDMA mode, the baseband signal is routed to the DCI via the RX_I and RX_Q lines. In analog mode, the baseband signal is up-converted and then FM-demodulated, producing the DEMOD signal which is routed to the DCI for filtering and de-emphasis.

Custom IC

The Custom IC can be divided into two functional subsystems: The ZIF (Zero-Intermediate-Frequency) which provides all of the functions of the back-end of a receiver, and the SYN (SYNthesizer) which contains phase-locked loops and modulators to produce the Local Oscillator (LO) and modulated transmit carrier.

The RSSI (Receive Signal Strength Indicator) is a voltage that increases with respect to the received signal strength. The RSSI signal has a filtering capacitance that changes with respect to the operating mode(e.i. analog, digital).

Motorola Confidential Proprietary

Page 90

VCO

TDMA Timeport™ P8190General Description

VCO

The VCO is a local oscillator module used to add frequency selectivity to the transceiver. The frequency of oscillation is dependent on the channel and band that the trans-ceiver will be operating in. The frequency is controlled by the Custom IC. The Custom IC will receive channel information via the SPI bus and adjust the frequency of the VCO by varying the voltage level to the input of the VCO.

The output of the VCO is split into two paths. One path is used to feed back the produced signal to the Custom IC. Then the signal is prescaled and sent through a phase lock loop circuit for frequency locking. The second path is sent to the receive circuit for carrier signal removal.

TX Offset Oscillator

The offset oscillator frequency is controlled by the Custom IC via TXCP_OUT. The operating frequency will depend on the dc biasing of CR300. The offset oscillator frequency is 157.32MHz in analog mode, and

112.32MHz in digital mode.

The LP_Switch, which comes from the Custom IC pin 40, changes the offset frequency. The LP_Switch is on in analog mode and off digital mode. The LP-Switch is currently not supported in the TDMA StarTAC, therefore, the frequency of the offset oscillator will be

157.32MHz regardl ess of whether it is in a nalog or digital mode.

In analog mode the FM signal comes from the DCI pin 39 and is modulated directly in the offset oscillator. The offset oscillator with

the FM then enters QMOD. The Quadmod will feed back the offset frequency to the Custom IC for proper PLL operation.

Merlin IC

The Merlin IC is a TX modulator. It takes the TX information and modulates it on a carrier for RF transmission. In analog mode the offset oscillator with the FM enters the Merlin IC and gets mixed with the main VCO. The resulting signal is a differential carrier with the modulated information. The carrier is then passed through an IQ modulator.

The A_D line controls the state of the IQ modulator. In analog mode, the IQ modulator simply feeds the carrier through to a voltage controlled amplifier(VCA). The gain of the VCA is controlled via the AOC_CNTL line, therefore, controlling the TX power steps of the transceiver. Once the carrier passes through the VCA, it passes through the cellular final power amplifier which is still internal to the Merlin IC . In digital mode the offset oscillator doesnt contain the modulated information from the FM line. The offset oscillator is mixed with the main VCO and a differential out-put signal is sent through the IQ modulator. In digital mode, the A_D line configures the IQ modulator to allow IQ modulation to the carrier. The result carrier signal is then passed through the Voltage Controlled Amplifier (VCA). The gain of the VCA is adjusted by the AOC_CNTL line, thus controlling the TX digital power steps of the transceiver. The carrier is then routed through the cellular final power amplifier and out to the transmit circuit.

Motorola Confidential Proprietary

Page 91

Theory of OperationService Manual

RF Detect Circuit

Amp Drivers

After the desired transmit information is modulated with a TX carrier frequency, enough signal power needs to be provided for RF transmission through the antenna. The driver stage is used to relieve amplification of the final stage PA. This reduces excess heat dissipation and overloading of the final stage PA.

The TX signal passses through FL452 and then is amplified by Driver Amp Q401. It then passes through Band Pass Filter FL454 before continuing to the final stage PA.

The output of Q810 is used to provide the biasing voltage for the final stage PA(U801). The 800BIAS voltage level determines the operating condition of the final stage PA. A lower voltage level at 800BIAS denotes digital mode and a higher voltage level denotes analog mode.

PA Circuit

The final stage PA circuit provides the necessary amount of power for RF trasmission through an antenna. U801 is a PA module that is capable of operating in the 800MHz band under analog or digital mode.

In analog mode linearity of the PA is not as critical as when operating in digital mode. For this reason, efficiency is a more important factor than linearity when operating in analog mode.

earity is controlled by varying the biasing of the PA(U801). Q831 controls the supply voltage to U801. The PA supply is sourced from the B+ line.

After the TX carrier is amplified it is sent to the duplex filter for final transmission through the antenna. In order to maintain a accurate power level, an RF detect circuit is used to monitor the signal level being transmitted.

RF Detect Circuit

The RF detect circuit is used to detect the RF amplitude level of the TX signal. RF detect reports back to the DCI pin 31, using a dc level, for amplitude stabilization. The RF detect circuit is RF coupled with the TX signal. The RF input is then converted into a dc level and sent to the RF_DETECT line.

There are two stages in the RF detect circuit which are used to increase the dynamic range of the RF detect output. The two stages are controlled by the TX_STEP line input. TX_STEP is high when power steps 0 through 5 are used . TX_STEP is low when power steps 6 through 10 are used. During low power steps the signal is sent directly to the RF _DET output through CR504. During high power steps the signal passes through amplifier Q502 and then sent to the RF_DET output through CR502.

In digital mode, because of its IQ modulation scheme, PA linearity is a more important factor than efficiency. Efficiency and lin-

Motorola Confidential Proprietary

Page 92

Analog/Digital Switch

TDMA Timeport™ P8190General Description

Analog/Digital Switch

The switching circuits are used to define the proper PA loads when in analog mode or digital mode.

When a high PA supply voltage is present, the PA may begin dissipating more heat. This may cause overheating to the Call Processor(U1000). To protect the U1000 from overheating, power is reduced by switching loads.

DCI (U1800)

The DCI(U1800) is the data converter interface between the DSP and the RF functions of a TDMA transceiver. It incorporates the following functions:

 Dual channel forward data I and Q(RX_I & RX_Q)  Two DACs for reverse data I and Q(TX_I & tx_Q)  DAC for AFC  DAC for AGC & DAC for reverse PA control  DAC for PA bias  Serial Synchronous Interface(SSI)  Serial Peripheral Interface(SPI)  Countdown timer for call processor wakeup  Free-running Real Time Counter to keep track of the time when control processor is stopped  Internally generates clocks from single master input  Power saving power-down modes  Analog wide band forward data signalling functions with SPI interface  Analog modulator interface  Analog discriminator interfaces

 RF Discontinuous Receive during Manchester decoding  On chip voltage reference for transmit I and Q

GCAP2 (U1500)

The GCAP2(U1500) provides the regulators and start-up functions for the entire radio. The GCAP2 contains the following hardware blocks:  On/Off control signals to properly activate the radio.  Bandgap reference voltage  Audio amplification for the speaker  Audio amplification for the alert  Audio amplification for the EXT speaker  Audio amplification of the microphone  Audio CODEC  Op-amps for use in the battery charger  Internal D/A for the battery charger  8 channel, 8 bit A/D  Real Time Clock  Linear regulators

- RX_2.75V for RX circuits

- 2.75V for logic circuits

- TX_2.75V for TX circuits

- 5V for negative regulator

- REF_2.75V for negative regulator

reference  3 wire bus A/D  Battery selection control circuitry

Motorola Confidential Proprietary

Page 93

Theory of OperationService Manual

Charger/Batt Select

Audio/Thermistor

The cellular transceiver has the capability of supporting two batteries, a main battery and an auxiliary battery. Since a charger circuit is designed in this unit, there needs to be a form of reading the thermistor values of each battery separately. The thermistor readings are used to determine the temperature of the battery cell which is being charged.

In order for the call processor(U1000) to read the thermistor values of the batteries, a voltage needs to be placed across the thermistor. As the temperature increases the thermistor will decrease in resistance, causing the supply level at the thermistor to decrease. The thermistor line is pulled high by the THERM_BIAS line.

The transceiver supports three audio output ports; ear speaker (EAR-), headset speaker (HDST_SPKR), and external audio port (AUDIO_OUT). The audio path routing is controlled by the GCAP2. The call processor(U1000) programs the GCAP2 to route the audio to its proper path. When the transceiver determines that audio needs to be routed externally, the other two audio ports are disabled by the GCAP2(U1500). The audio comes from the EXT_OUT line and passes through an audio filter before being sent to the external connector. Because the AUDIO_OUT line has two multiplexed functions, the audio filter also acts as an isolator to the ON/OFF function which in the same line.

When the ear speaker is used, the EAR- and EAR+ lines are used . The audio signals between EAR+ and EAR- is 180° out of phase.

This allows proper operation of the ear speaker.

When a headset is attached to the transceiver, a headset detect interrupt will have the audio only go to the headset speaker (HDST_SPKR). Since the same EAR- line is used for the headset and the ear speaker, the ear speaker is disabled by inverting the EARsignal 180°. This will present two signals to the ear speaker that have no phase shift, thus, not allowing the ear speaker from functioning.

Charger/Batt Select

The internal charger will be activated only when there is an external power source, a Motorola battery is attached, the MAN_TEST line is loaded down, and BATT_FDBK is enabled. As SW_EXT_B+ passes thru R1566, U1500(GCAP) reads the charge current for proper control of the charger. CHRGC controls the rate of charge to the batteries by varying the gate biasing of Q1561.

The output of Q1561 is split into two different sections. The one section is the BATT_FDBAK line. BATT_FDBK_EN switches Q642 on or off to disable or enable BATT_FDBAK. When BATT_FDBK is not available, the external supply will lower its supply to a normal operating voltage and the internal charger will be turned. The second section is the line to charge the batteries. The radio is capable of charging two batteries (Main and Auxiliary). The phone is designed to always charge the main battery first. Once the main battery is fully charged, it will begin charging the auxiliary battery.

Motorola Confidential Proprietary

Page 94

DOUB Supply/Backlight

TDMA Timeport™ P8190General Description

Lines CHGR_MAIN_BATT and CHGR_AUX_BATT selects which battery will be charged. The dual transistor package Q600 has its outputs controlled by CHGR_MAIN_BATT and CHGR_AUX_BATT. Each line output of Q600 turns on or off charge transistors Q1562 and Q1563. When Q1562 is turned on, the main battery will be charged. When Q1563 is turned on, the auxiliary battery will be charged.

U1570 (ABC) is used to select the B+ supply source of the radio. SW_EXT_B+ takes priority over any other source for the B+ power source.

DOUB Supply/Backlight

There are some circuits that require a voltage higher than the battery source. For this reason, a voltage doubling charge pump circuit is provided. U1501 takes the 2.75V source and oscillates it with a high peak to peak signal. The positive region of the signal is then sent out to produced the VDOUB supply. When the transceiver is in sleep mode, U1501 is disabled and the VDOUB supply will be the same level as the 2.75V supply.

The display backlighting is controlled by the Call processor(U1000). U1000 sends a control signal via the BACKLIGHTING line. A high state at the BACKLIGHTING line will switch Q1720 on. This will allow B+ to supply the BKLT_CNTL line. As a result, the display backlighting will illuminated.

Reference Oscillator

The reference oscillator U150, operating at

19.44MHz, it provides a reference frequency for the RF synthesizers and various logic circuits. U1000 (CPU) switches U150 on and off via the OSC_DIS line. The Osc_DIS line switches Q151 on or off, controlling the supply voltage to U150 and Q152.

U1800 can fine tune U150 via the AFC line. Tuning of the reference oscillator is needed to synchronize frequencies with the cellular base station, therefore, the signal received from the base will be used to determine the correct reference frequency. The ouput of U150 is split into two signals. RF19.44MHz is used for the RF frequency reference and it is also amplified by Q152 and sent to the logic section for logic clock synchronization.

STUART (U1700)

The STUART IC(U1700) is a custom gate array that uses the following functions:

Host Port Emulation - This provides a bus interconnection between the call processor and the DSP via the call processors parallel memory bus, interconnected to the modem DSPs parallel memory bus. This communications port is functionally identical to the host port provided for the Motorola DSP; To both devices, the port appears as a busmapped peripheral. The call processor sees the port as an 8-address block in memory at a location determined by the call processors programming of its own chip select for the STUART IC. The DSP sees the port as an 8address block in I/O space. Because the STUART IC uses the high byte of the DSPs bus, provisions are made for byte/word con-

Motorola Confidential Proprietary

Page 95

Theory of OperationService Manual

DSP(U1900)

version, to be compatible with the existing word-wide communications with U1000(Call processor). DSP Timer - It provides a timer function. This is a device, accessible to the DSP, which implement a continuously clocked timer, with rollover, a feature needed for modem functionality but difficult to implement with the ATT device. The ATT timer can be set up to either stop on count=0, or to repeat the last count interval. We need a counter that can be set up to interrupt at a particular point in time, and then keeps counting, so that real-time is preserved, and can be set for a future time interval. This timer has a clock that is coherent with the symbol rate.

General Purpose I/O - It provides a 4-bit general purpose I/O port, with programming data direction function, as an extension to the call processor bit I/O set.

RF SPI interface - Improved interface between the Call processor, DSP, and ZIFSYN for scanning requirements needed because of the PCS band.

Transmitter control logic - Transmitter keying and frequency band selection.

DSP (U1900)

The following list is a description of the DSP(U1900):

 Flexible power management including Sleep mode, Sleep with slow internal clock, and stop.  Three modes of operation

1. Actively running

2. Light sleep - Clocks running, but

lower power consumption

3. Deep sleep - All clocks off, extremely low power consumption  Digital Traffic Channel

1. Acquiring and maintaining synchronization with the Digital Channel

2. AFC, AGC, AOC control loops

3. Vocoders (ACELP and VCELP)

4. Channel equalization

5. Channel decoding

6. Channel encoding

7. Audio functions

8. MAHO measurements  Digital Control channel

1. Essentially DTC minus audio and vocoders

2. ROCM instead of MAHO

3. Modem goes into deep sleep for long periods  Analog Control Channel

1. No RX functions - modem in deep sleep

2. Manchester Encoder

3. Transmitter control  Analog voice channel

1. Audio processing

2. SAT detection/Transponding

 ROM Mask Device(48K)  Patch RAM space(16K)  Fixed point MAC(multiply accumulator)  8-bit parallel interface  8-bit control I/O interface  Dual serial I/O ports  Two external interrupts

Motorola Confidential Proprietary

Page 96

Call Processor(U1000)

TDMA Timeport™ P8190General Description

Call Processor (U1000)

U1000 is a single-chip microcontroller that controls major functions of the cellular phone. U1000 will perform the functions of both the master controller and keyboard processor. These functions include:

 Keypad interrupt and scanning  Display driving  Control of audio and RF hardware  Call processing (signalling) software

- ON/OFF control

- EEPROM access

- Synthesizer programming

- Automatic Frequency Control(AFC)

- Transmit power setting

 User Interface

U1000 is not packaged with internal memories as past Call processors. This means that vital information that was previously stored in the memory of previous call pro-cessors is now stored in the external EEPROM(U1003).

Memory

A serial EEPROM(U1003) of 256K bytes is used for storage of the NAM information, authentication keys, phasing data, ESN, and memory. The EEPROM serial interface to the microcontroller is a standard SPI-compatible interface.

Analog TX Audio Processing

The analog voice signal is taken from the microphone and digitized by the CODEC using an A/D converter. This block also contains filtering to remove aliases before sampling. The audio samples are then transmitted to the DSP. The transmit audio functions are located in a DSP.

The nominal TX Mic. Audio adjust amplifier is realized in software.

The 300 Hz. high-pass filter is realized using four poles and four zeros of IIR digital filtering. The 3 kHz. low-pass filter is realized using four poles and four zeros of IIR digital filtering.

The compressor is realized using a software variable gain amplifier. The gain of the stage is controlled by detecting the power at its output and applying the result to control the gain of the amplifier. The power detector is realized using a full wave rectifier and one pole and one zero of low-pass IIR digital filtering.

The pre-emphasis filter is achieved using one pole and one zero of IIR digital filtering. This stage also incorporates an up-shelf filter which is realized using one pole and one zero of IIR digital filtering.

U1300 is a 64K x 16 low voltage, low power SRAM. U1300 uses a parallel interface bus.

U1200 is a 512K x 8 flash EPROM. U1200 uses a parallel interface bus.

The deviation limiter is realized using an amplifier in conjunction with a 7th-order odd polynomial with two output comparators. The amplifier is realized in software. The 7th-order odd polynomial minimizes the amount of spectral splatter and is realized in software. The comparators switch as the signal reaches a high or low threshold, thus,

Motorola Confidential Proprietary

Page 97

Theory of OperationService Manual

Digital TX Audio Processing

limiting the output swing. The comparators are realized in software.

The post-limiter splatter filter is realized using a 17-tap FIR digital filter. This stage includes a down-shelf filter realized using one pole and one zero of IIR digital filtering. The up- and down-shelf filters work together with the splatter filter to limit the maximum deviation of the transmitter. The TX Mic. Audio mute is realized in software.

Data/Signaling Tone (ST) is generated as a sinusoidal signal using a look-up table. This method produces less harmonic energy than pure Manchester encoding would generate, easing the requirements for filtering of this signal.

DTMF is generated using look-up tables and SAT processing is also performed in the Transmit Audio Circuitry. The summing of all Analog Transmit Modulation signals (Mic. Audio, Data/ST, DTMF and SAT) is performed in software.

The D/A converts the audio samples to an analog signal. The resultant analog waveform is filtered by a 5th-order low-pass switched-capacitor filter and a two-pole, twozero continuous-time filter to remove aliases. The Master Deviation Adjust is realized by a digitally controlled amplifier. The resultant signal is then applied to the Analog Mod. input of the synthesizer circuit.

Digital TX Audio Processing

The analog voice signal is taken from the microphone and digitized by the CODEC using an A/D converter. The codec also contains filtering to remove aliases before sampling. The audio samples are then transmitted to the DSP.

In the DSP, microphone compensation and echo cancellation is applied to the Tx audio. Following these processes, the DSP uses VSELP (Vector-Sum Excited Linear Prediction) to compress the 160 samples of voice data into 159 bits of voice data. After the data has been compressed, the DSP separates the voice data into class I and class II bits. A cyclic redundancy check (CRC) is performed on the most significant class I bits. The CRC is used during the decoding process to determine the validity of the class I bits. Redundancy is then added to the class I bits by performing a rate-1/2 convolutional encoding operation on the class I bits and the CRC. The redundancy is used during the decoding process to correct class I errors. The class II bits are not encoded. The rate-1/2 convolutionally encoded class I bits and the class II bits are then interleaved with speech data from adjacent speech frames. Interleaving is used during the decoding process to reduce the effects of burst errors. The DSP then combines system messages with the interleaved rate-1/2 convolutionally encoded class I bits and class II bits. The resultant bits are sent to a data converter to be modulated.

The data converter modulates the data using differential quadrature phase shift keying (DQPSK) to generate in-phase and quadrature-phase data. The in-phase and

Motorola Confidential Proprietary

Page 98

quadrature-phase data is then processed by a 32-tap FIR digital filter which has a square root of raised cosine frequency response with a roll-off factor of 0.35. The subsequent inphase and quadrature-phase bit streams are then converted to analog signals. The resultant analog waveforms are filtered to remove aliases and then transmitted.

TDMA Timeport™ P8190General Description

Motorola Confidential Proprietary

Page 99

Introduction

The service diagrams were carefully prepared to allow a Motorola certified technician to easily troubleshoot cellular phone failures. Our professional staff provided directional labels, color coded traces, measurement values and other guidelines to help a technician troubleshoot a cellular phone with speed and accuracy.

We worked hard in trying to provide the best service diagrams, therefore, to avoid clut-tered diagrams, we excluded some compo-nents from the service diagrams. Our professional staff carefully selected to excluded components that are unlikely to fail.

Service Diagrams - Section AService Manual

Test Point Measurements

The measurements labeled on the service diagrams are approximate values and may vary slightly. These measurements are dependent on the accuracy of the test equipment.

It is strongly recommended that the test equipment calibration schedule be followed as stated by the manufacturer. RF probes should be calibrated for each frequency in which tests are going to be performed.

The types of probes used will also affect measurement values. Test probes and cables should be tested for RF losses and loose connections.

Because of the sensitivity of RF, measured readings will be greatly affected if they ’ re taken in certain locations. To get the most accurate readings, take measurements nearest to the labeled measurement on the service diagram.

Motorola Confidential Proprietary A1

Page 100

TDMA StarTAC

P8190: Antenna Circuit

Antenna

EXT_ANT

Q702

TX_2.75

U700

U701-A

U701-B

Q700

U704

800MHz 1900MHz

FL453

Not used

1900MHz

FL453

Not used

Description

Two RF ports are designed in this transceiver; internal antenna and external antenna. The RF switch(U704) controls which antenna path is going to be used during operation. U704 has two control inputs which are used to control the RF routing.

The internal antenna will be used only when there is no load at the EXT_ANT port. The absence of a load at the EXT_ANT port will not bias the base of PNP transistor Q702 on. This condition will not allow TX_2.75 to be present at one of the inputs of the exclusive OR gate U700.

When a load is present at the EXT_ANT port, the base of Q702 is biased. This condition will switch Q702 off, allowing the input of U700 to be in a low state.

U700 only has one output which allows only two possible states, high or low. With this in consideration, U704 will also have only to possible states.

The states of U704 are determined by the output of U700. A low state at the output of U700 will switch Q700 on. This condition will pull the input the inverter U701-A low. The output of U701-A will provide a high state at V2. U701-B is then used to invert the state and provide a low state at V1. Having a low state at the output of U700 will invert all the states.

Having a high state at V2 and a low state at V1 will configure U704 to route the EXT_ANT port to the 800MHz RF path.

A low state at V2 and a high state at V1 will configure U704 to route the antenna port to the 800MHz RF path.

Only one RF port is used at a time, therefore, only one RF switch configuration is used while the other is irrevelent.

Motorola P8190, TALKABOUT T8097 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual