Motorola P8190 Manuel de service

DIGITAL WIRELESS TELEPHONE™Model P8190TDMA 800MHz/Analog 800MHzService ManualLevel III

© 2000 Motorola, Inc.Table of ContentsService ManualixTX SAT Deviation Test...

TDMA StarTACTM P8190: Antenna CircuitAntennaEXT_ANTQ702TX_2.75U700U701-AU701-BQ700U704800MHz1900MHzFL453V2V1Not used1900MHzFL453Not usedDescriptionTw

BandAntennaCD800Internal800External5.5V0V0V5.5VEF5.4V0V2.74V0VC30page B5RX_800RX_1900page B5C10EXT_ANTJ3-2page B47L450page B21TX_800R910TX_2.75ANT_CNT

TDMA StarTACTM P8190: RX Front End IC(U11)RX_IFNot UsedDescriptionThe front end IC(U11) is used to remove the RX carrier frequency and produce the RX

FL453FL450page B3RX_800RX_2.75Vpage B25RX_2.75Vpage B25800_1900*U1700-63page B35BATT_SAVU1800-16page B23FE_ENC833TX_OUTC205R10023page B9page B13U1800-

TDMA StarTACTM P8190: Custom IC(U110)A6DescriptionU110(Custom IC) can be divided into two functional subsystems: The ZIF (Zero-Intermediate-Frequency)

RX_IRX_QAGC_STEPRX_2.75VR1804page B23U1800-24U1800-25page B23page B2319.44MHzC153page B25page B33RX_2.75Vpage B25TXPRE_INR351page B13HVCCTX_SFBATT_SAV

TDMA StarTACTM P8190: VCO/VibratorA8DescriptionU306 is the local oscillator module used to add frequency selectivity to the transceiver. The frequency

U110page B7RXCP_OUTRX_SFpage B7RXPRE_INC202page B7C833page B5RX_VCOB+VIB_DRIVEJFLEX-9page B47page B29R1711page B35VIB_ONChannel1.4V 1.79V2.28V23337998

TDMA StarTACTM P8190: TX Offset OscillatorNot UsedDescriptionThe offset oscillator frequency is controlled by U110(ZIF/SYN) via TXCP_OUT. The operatin

U110page B7LP_SWITCHTXCP_ADAU110page B7TXCP_OUTU110page B7FMU1800-39page B23TX_SFpage B7800*_1900U1700-64page B35U301-18page B13OVCO_BTX_SFpage B7ABBa

© 2000 Motorola, Inc.TDMA Timeport™ P8190Table of ContentsxTheory of Operation ...

TDMA S ta rTACTM P8190 : Merlin TX(U301)U301MerlinTX_ITX_QFMMain VCOOffset Oscillator800*_19008001900TX_STEPU110ZIFSYNU1700IQModAOC_CNTLU1800DCIA_DNo

TX_SFpage B7C272page B7TXPRE_INC350page B11OVCO_BTX_2.75page B25TX_2.75page B25QMOD_KEYU1800-20page B23TX_2.75page B25A_DU1800-14page B23TX_ITX_IXTX_Q

TDMA StarTACTM P8190 : Am p D r i v e r sTX_800FL452FL454DRIVER_B+Q475-AQ401800KEYCR810-BTX_800CR810-ATX_2.75Q810800BIASQ811A_DR811DescriptionAfter

DRIVER_B+R801page B17TX_800R999page B17Q1803page B35800KEYTX_2.75800BIASR802page B17A_DU1800-14page B23page B25TX_2.75B+page B29TDMA StarTA CTM P8190:

TDMA S ta rTACTM P8190 : PA CircuitU801800BIASB+800KEYQ831TX_800 TX_800TL800TL801TL901DET_800DescriptionThe final stage PA circuit provides the neces

C812page B21TX_800FL453page B31900KEYQ1804TX_800FL454page B15800BIASQ811page B15800KEYQ1803page B35B+page B29B+page B29C501page B19C515TDMA StarTA CTM

TDMA StarTACTM P8190: RF Detect CircuitA18DescriptionThe RF detect circuit is used to detect the RF amplitude level of the TX signal. RF detect report

R503DET_800TL901page B17RF_DETR1806page B23SW_QMOD_KEYpage B27TX_2.75page B25TX_STEPTX_STEPU1800-17U1800-17page B23page B23TDMA StarTACTM P8190: RF De

LoadATDMA StarTACTM P8190: Analog/Digital SwitchA20DescriptionThe switching circuits illustrated above are used to define the proper PA loads when ope

AnalogDigital2.82V 0VFEA0V2.68V1.4V0VTX_800U801page B17TX_800FL450page B3SW_QMOD_KEYpage B27Q1501SW_QMOD_KEYQ1501page B27LOAD_SWU1800-13A_DU1800-14pag

© 2000 Motorola, Inc.Table of ContentsService ManualxiCall Processor(U1000) ...

TDMA StarTACTM P8190: DCI(U1800)A22DescriptionThe DCI(U1800) is data converter interface between the DSP and the RF functions of a dual band TDMA tran

3.53V.081VTX On TX OffDI0V2.79VHBPower Step2345671.7V1.39V 1.16V .98V.86V.77VC.946V.66V .46V .321V1.18V.806V2.8V2.76V 2.75V 2.75V.055V.054VE.112V .095

TDMA StarTACTM P8190: GCAP2(U1500)A24DescriptionThe GCAP2(U1500) provides the regulators and start-up functions for the entire radio. The GCAP2 contai

TX_2.75RX_2.75V5VRTC_BATT+page B47SW_EXT_B+page B43EAR-JFLEX-8page B47BOOM_SPKRJ650-3page B45EAR+JFLEX-7page B47MIC_BIASVAGREF_2.75V2.75VAUX_THERMMAIN

AudioFilterAudioFilterMICMIC_INMIC_BIASVAGMICOUTHDST_MICMIC_BIASAUX_OUTAUX_MICAudioFilterAUDIO_INEXT_MICSW_EXT_B+2.75VAUX_BATT_THERMAUX_THERMTHERM_BIA

AUX_BATT_THERMJ811page B47U1500page B25AUX_THERMMAIN_BATT_THERMJFLEX-6page B47MAIN_THERMU1500page B252.75VSW_EXT_B+DRIVER_B+B+PA_DRVU1500page B25AUDIO

TDMA StarTACTM P8190: Charger/Batt SelectA28DescriptionSW_EXT_B+ R1566BATT_FDBAKQ642BATT_FDBK_ENQ1562BATT+Q1563AUX_BATT+CHGR_AUX_BATTAUX_BATT+BATT+BAT

SW_EXT_B+U1500ISENSECHRGCU1500page B25page B25CHRG_AUX_BATTU1700-50page B43page B35CHRG_MAIN_BATTU1700-51page B35SW_EXT_B+MAIN_BATT+AUX_BATT+page B43p

TDMA StarTACTM P8190: DOUB Supply/BacklightA30DescriptionThere are some circuits that require a voltage higher than the battery source. For this reaso

2.75Vpage B25BATT_SAVU1800-16page B23RX_2.75Vpage B25VDOUBBACKLIGHTINGU1000page B39B+BKLT_CNTLJ1B-32page B47page B29Motorola Confidential ProprietaryT

© 2000 Motorola, Inc. 1IntroductionA cellular mobile telephone system dividesthe service area into small, low power radiofrequency coverage areas call

TDMA StarTACTM P8190: Reference OscillatorA32DescriptionThe reference oscillator U150, operating at 19.44MHz, provides a "reference frequency&quo

SW_RX2.75page B25RX_2.75VOSC_DISU1000page B3919.44MHZC133page B7RF_19.44MHZpage B37R1914AFCU1800-29page B23TDMA StarTACTM P8190: Reference OscillatorA

TDMA StarTACTM P8190: STUART(U1700)A34DescriptionThe STUART IC(U1700) is a custom gate array that uses the following functions.Host Port Emulation - T

ABCDTX Band 800 19000V 3.93V3.36V 2.77VEF0V 2.8V2.7V 0V0.95V 0V0V 0.96V2.75Vpage B25CALL_DATACALL_ADDHOST_ENBRWBECLKU1000page B39U1000page B39U1000pag

TDMA StarTACTM P8190: DSP(U1900)A36DescriptionThe following list is a description of the DSP(U1900):• ROM Mask Device(48K)• Patch RAM space(16K)• Fix

DSP_2.75V2.75Vpage B25DSP_2.75VDSP_2.75V19.44MHZC153page B31DSP_RSTMODEM_DATAIORWNCODEC_BUS U1500page B25page B35U1700-29page B35U1700-28U1700U1700pag

TDMA StarTACTM P8190: Call Processor(U1000)A38DescriptionU1000 is a single-chip microcontroller that controls major functions of the cellular phone. U

2.75Vpage B25IRQU1700-54page B352.75Vpage B25U1500CMP_LVLpage B25CMPJ3-12page B47TRUJ3-13page B47RTNJ3-11page B47RTN_LVLU1500page B252.75Vpage B252.75

R1201TDMA StarTACTM P8190: MemoryA40DescriptionA serial EEPROM(U1003) of 256K bytes is used for storage of the NAM information, authentication keys, p

EE_CSU1000page B39SRAM_VCCpage B252.75Vpage B25SPI_BUSU1000page B392.75Vpage B25EEPROM_HOLDU1000page B39SRAM_S1page B25U1500CALL_DATACALL_ADDU1000page

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview2The cellular radio frequency spectrum hasbeen divided by the FCC into two equal

CALL12.75VCR1051REDTDMA StarTACTM P8190: B+ Disconnect/Status LEDsA42DescriptionThe overvoltage circuit consist of a voltage detector(U1100) and a pow

DCEBAEXT B+ <6.7V >7.2V1.67V 0V0V7.29V6.49V0V0V2.63V2.59V 2.9VSW_EXT_B+EXT_B+page B472.75Vpage B25U1000page B39MAIN_SERIAL_DATAMAIN_BATT_SER_DAT

TDMA StarTACTM P8190: Alert/Headset DetectA44DescriptionWhen a headset is inserted in J650, the internal speaker and microphone is disabled. The user

LS1C1550VR1500R1555C1520C18858J650C1519CR1071Q1551R1540CR1070U1500-41R1537HDST_MICBOOM_MIC_DETU10002.75VEAR-JFLEX-8EAR+JFLEX-7U1500-42B+U1500-48ALRTOU

TDMA StarTACTM P8190: JIB ConnectorA46R728R726R723R720R745R729R727R724R725R721R722R750C764R731R733R732R730R741R734R742R735R743R744R736R739C1721R740R73

TDMA StarTACTM P8190: CONNECTORSMotorola Confidential ProprietaryThis manual is Motorola property. Copying ordistribution strictly prohibited witho

JFLEXC776C775C773C774C778R710C721C720C771Q1573Q1572C1574Q700R761U701U700Q702R762CR1051C1074L784C777C462C826C825Q820Q505R402Q821C827C828L450R821C821R81

A3C780L782C783L786 L785CR1070CR1071R1090C1520C1572J650C18858C1520R1555VR1500C1550LS1R747S3S2S1U1300RAMR748Q1804C1021R1203U1003EEPROMU1200EPROMC1023C12

Motorola Confidential ProprietaryRF Block DiagramService ManualA50IQModI QTX Mod19.44MHzRef OscIF ReceiverSynthesizerIF FilterLoop FilterModulator ICU

Motorola Confidential ProprietaryTDMA Timeport™ P8190A/L Block DiagramA51HEADSETDETECTCIRCUITEXT_MICMAIN_FETSPKRINSPKR+SPKROUTSPKR-MICIN+MICIN-DISCR

© 2000 Motorola, Inc.Cellular OverviewService Manual3naling required to establish a telephone call.Control channels are used to send and receiveonly

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview4applications for each carrier. In 1987 theFCC expanded the cellular spectrum (E

© 2000 Motorola, Inc.Cellular OverviewService Manual5Analog CellularThe simplified block diagram on page 1 - 7illustrates an imaginary layout of one s

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview6the complement of the assigned DSAT.SAT (Supervisory Audio Tone) and DSAT(Digita

© 2000 Motorola, Inc.Cellular OverviewService Manual7Analog Cellular Signal Summary (AMPSand NAMPS)The diagrams on the following pages out-line the v

COMPUTER SOFTWARE COPYRIGHTSThe Motorola products described in this instruction manual may in-clude copy-righted Motorola computer programs stored in

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview8Total deviation of two or more signals is cu-mulative.Going into ServiceWhen firs

© 2000 Motorola, Inc.Cellular OverviewService Manual9cessful completion of either steps 5 or 7, thetelephone scans a set of paging channels,tunes to t

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview10Placing a Call (Mobile to Land or Mobile toMobile)When the cellular telephone

© 2000 Motorola, Inc.Cellular OverviewService Manual11The cellular telephone tunes to the assignedvoice channel and verifies the presence of theproper

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview12(D)ST + (D)SATLandline Network Switch / Cell Site Cellular TelephoneDATADATADAT

© 2000 Motorola, Inc.Cellular OverviewService Manual13Power StepsAs a call progresses, the cell site continuouslymonitors the reverse channel for sign

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview14Cellular Telephone Landline Network(D)ST + SATSwitch / Cell SiteVOICE + (D)SATD

© 2000 Motorola, Inc.Cellular OverviewService Manual15Call TerminationWhen the call is terminated by the landlinecaller (not the cellular telephone us

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview16

© 2000 Motorola, Inc.Cellular OverviewService Manual17Digital CellularMultiplexingUsing a single frequency to carry two or morecommunication links (e

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview18line, such as that shown in the accompany-ing illustration, will be produced.If

© 2000 Motorola, Inc.Cellular OverviewService Manual19voice samples as viewed on oscilloscopes, areclearly shown to be nothing more than vary-ing volt

© 2000 Motorola, Inc. TDMA Timeport™ P8190Cellular Overview20Digital Cellular101101010101010101010101010010101010101010101010101101010101010

21 © 2000 Motorola, Inc. Accessories Desktop Charger Rapid Desktop Charger Single Pocket SPN4641 Travel Charger (Power Adapter) U.S. . . . .. . . .

22TDMA Timeport™ P8190AccessoriesVehicle Power Adapter (VPA) © 2000 Motorola, Inc. Vehicle Power Adapter (VPA) VPA . . .. . . . . . . . . . . . .

23Service ManualAccessories © 2000 Motorola, Inc. Easy Installation Car Kit Zero Install Car Kit. . . .. . . . . . SYN8130

24TDMA Timeport™ P8190Accessories © 2000 Motorola, Inc.

25 © 2000 Motorola, Inc. Introduction The Number Assignment Module (NAM) isa section of memory that retains informa-tion about the phoneÕs characteri

TDMA Easy NAM ProgrammingProgramming SequenceTDMA Timeport™ P819026 © 2000 Motorola, Inc.Press , carrier system ID (from your Cellular S

Motorola Confidential Proprietary 27IntroductionThe Number Assignment Module (NAM) isa section of memory that retains informationabout the phone’s cha

© 2000 Motorola, Inc. iiiScope of ManualThis manual is intended for use by experi-enced technicians familiar with similar typesof equipment. It is int

Motorola Confidential Proprietary TDMA Timeport™ P8190TDMA Test Mode NAM Programming28NAM DataNAM Data is specified by the system opera-tor. For

Motorola Confidential ProprietaryTDMA Test Mode NAM ProgrammingService Manual 29Test Mode NAM Programming SequenceAdvances to the next programmin

Motorola Confidential Proprietary TDMA Timeport™ P8190TDMA Test Mode NAM Programming30Table 8:Test Mode NAM Programming Sequence (con’t)07 000000

Motorola Confidential ProprietaryTDMA Test Mode NAM ProgrammingService Manual 31Table 8:Test Mode NAM Programming Sequence (con’t)NOTEIf the seco

Motorola Confidential Proprietary TDMA Timeport™ P8190TDMA Test Mode NAM Programming32

Motorola Confidential Proprietary 33IntroductionManual Test Mode software allows servicepersonnel to monitor the telephone status onthe display, and m

Motorola Confidential Proprietary TDMA Timeport™ P8190Manual Test Mode34Servicing LevelThe Servicing Level of Manual Test Modeallows service

Motorola Confidential Proprietary Manual Test ModeService Manual 35Status Display Line 1Figure 17. Test Mode Status Display (Analog Mode)Channe

Motorola Confidential Proprietary TDMA Timeport™ P8190Manual Test Mode36Status Display Line 1Figure 18. Test Mode Status Display (Digital800 C

Test Procedures37Motorola Confidential ProprietaryIntroductionThe phone allows keypad controlled testingof various analog and digital operating pa-ram

© 2000 Motorola, Inc.TDMA Timeport™ P8190About This Manualivlar telephone must be turned off to pre-vent any transmission. In standby mode, themobile

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures38The diagram below shows the modification thatthe MCEL 2000 needs in order to p

Motorola Confidential ProprietaryTest ProceduresService Manual39Test ConnectionsThe diagram below shows the recommendedconnections for testing transce

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures40RF Cable TestDUPLEX TESTdBTx FrequencyOffTx Power-0.62dBmAC LevelOffOffSINADTu

Motorola Confidential ProprietaryTest ProceduresService Manual41Set up for Analog callRegistration1. Put the Test Set in Active stateby selecting Acti

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures42RX TESTSINADdBVAC Level8 22.25 240.6336RF Gen FreqMHz879.990000Amplitude-116

Motorola Confidential ProprietaryTest ProceduresService Manual43TX Power Out TestTX TESTdBTX Frequency834.9900MHZTx Power27.49dBmFM Deviation11.58KHz1

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures44TX Frequency Error TestTX TESTdBTX Frequency834.9900MHZTx Power27.49dBmFM Devi

Motorola Confidential ProprietaryTest ProceduresService Manual45TX Maximum Deviation TestDUPLEX TESTdBTx FrequencykHzTx Power25.2dBmFM DeviationkHzkHz

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures46TX SAT Deviation TestTest Mode Commands:11333# Load synthesizer to channel3331

Motorola Confidential ProprietaryTest ProceduresService Manual47TX ST Deviation TestCommunications Analyzer Setup: Select TX button from the Screen C

© 2000 Motorola, Inc.About This ManualService ManualvSpecificationsTable 1.Overall SystemTable 2. EAMPS SystemFunction SpecificationFrequency Range TX

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures48Set up for TDMA callCALL CONTROLDisplayActiveRegisterPageAccessConnectCntrl Or

Motorola Confidential ProprietaryTest ProceduresService Manual49MAHO MeasurementsDCCH CALL CONFIGURETo ScreenCALL CNTLCALL CNFGANLG MEASSPEC ANLDIG ME

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures50BER MeasurementsDIGITAL MEASUREMENTS %Amplitude Traffic Chan333DVCCTo ScreenC

Motorola Confidential ProprietaryTest ProceduresService Manual51TX Power MeasurementsDIGITAL MEASUREMENTSDTC MeasTrig Type2X FrameTraffic Chan333SlotD

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures52TX Frequency Error MeasurementsDIGITAL MEASUREMENTSDTC MeasPwr GainAuto / Hold

Motorola Confidential ProprietaryTest ProceduresService Manual53EVM MeasurementsDIGITAL MEASUREMENTSDTC MeasPwr GainAuto / HoldTraffic Chan333SlotDVC

Motorola Confidential ProprietaryTDMA Timeport™ P8190Test Procedures54

55 Motorola Confidential Proprietary Introduction To perform most repairs, the unit must bedisassembled in order to gain access to thevarious internal

56TDMA Timeport™ P8190DisassemblyAntenna Removal Motorola Confidential Proprietary Antenna Removal Step 1. Turn off the telephone. Step 2. Press dow

57Service ManualDisassemblyOpening Housing Motorola Confidential Proprietary Step 2. Press and push corner outwardswith left thumb while right handtw

© 2000 Motorola, Inc.TDMA Timeport™ P8190About This ManualviTable 3. DAMPS SystemTable 4. EnvironmentFunction SpecificationModulation Type π/4DQPSKFre

58TDMA Timeport™ P8190DisassemblyOpening Housing Motorola Confidential Proprietary Step 6. Grasp the backhousing and pull thebackhousing off going s

59Service ManualDisassemblyBoard Removal Motorola Confidential Proprietary Board Remova l Step 1. Open the flex connector and pull outthe flex. Step 2

60TDMA Timeport™ P8190DisassemblyBoard Removal Motorola Confidential Proprietary Step 4. Using your index finger, lift andseperate the display board

61Service ManualDisassemblyFlip Removal Motorola Confidential Proprietary Flip Removal Step 2. Using the pointed end of the plasticprying tool, insert

62TDMA Timeport™ P8190DisassemblyFlip Removal Motorola Confidential Proprietary Step 3. Once the tab is released, peel off andslide the cover away f

63Service ManualDisassemblySpeaker / Vibrator Removal Motorola Confidential Proprietary Speaker / Vibrator Removal Step 1. Rest flip housing on a flat

64TDMA Timeport™ P8190DisassemblySpeaker / Vibrator Removal Motorola Confidential Proprietary

65Service ManualDisassemblyOpening Housing using fixture Motorola Confidential Proprietary Opening Housing using fixture Using the fixture (8185677G02)

66TDMA Timeport™ P8190DisassemblyOpening Housing using fixture Motorola Confidential ProprietaryLever 1Lever 2123 Step 3. Engage lever 1 followed by

67Service ManualReassemblyBoard Assembly Motorola Confidential Proprietary Board Assembly Step 3. Insert the flex into connector andclose flex connect

© 2000 Motorola, Inc.Table of ContentsviiAbout This Manual ...

68TDMA Timeport™ P8190ReassemblyClosing housing Motorola Confidential Proprietary Closing housing Step 1. Place backhousing on phone makingsure side

Motorola Confidential Proprietary 69IntroductionMotorola maintains a parts office staffed toprocess parts orders, identify part numbers,and otherwise

Mechanical Explosion TDMA Timeport™ P819070Motorola Confidential Proprietary123456789101112131415161718192021ANTENNAVOL.GROMMETLENSRF BRD.REAR HSG.

71Electrical PartsService ManualA2C10C100C1000C1001C1002C1003C1004C1005C1006C1008C1009C101C1010C1011C1012C1013C1014C1015C1016C1017C1018C1019C102C1020C

TDMA Timeport™ P8190Electrical Parts List72C18861C18862C18871C18873C18874C19C1900C1902C1903C1904C1905C1906C1910C1911C20C201C202C203C204C205C21C22C23

73C822C823C824C825C826C827C828C829C830C831C833C834C835C882C883C884C885C886C887C888C898C899C901C903C904C906C907C911C912C913C914C915C920C9910C998CR100CR

74Q1571Q1573Q1574Q1710Q1711Q1712Q1720Q1721Q1722Q1802Q1803Q1804Q1831Q1832Q301Q351Q391Q401Q475Q501Q502Q503Q505Q600Q642Q69Q700Q702Q810Q811Q820Q821Q831Q83

75R1820R1830R1831R1900R1901R1902R1905R1910R1911R1912R1913R1914R20R201R301R302R303R304R305R306R308R311R341R342R391R392R393R403R405R406R408R409R41R425R4

76TDMA Timeport™ P8190Parts List Motorola Confidential Proprietary

Motorola Confidential ProprietaryTheory of Operation77Two RF ports are designed in this trans-ceiver; internal antenna and external an-tenna. An RF sw

© 2000 Motorola, Inc.TDMA Timeport™ P8190Table of ContentsviiiEnter Programming Mode...

Motorola Confidential ProprietaryTDMA Timeport™ P8190General Description78VCOMerlin ICVCOThe VCO is a local oscillator module used toadd frequency s

Motorola Confidential ProprietaryTheory of OperationService Manual79Amp DriversAfter the desired transmit information ismodulated with a TX carrier fr

Motorola Confidential ProprietaryTDMA Timeport™ P8190General Description80Analog/Digital SwitchThe switching circuits are used to define theproper P

Motorola Confidential ProprietaryTheory of OperationService Manual81Audio/ThermistorThe cellular transceiver has the capabilityof supporting two batte

Motorola Confidential ProprietaryTDMA Timeport™ P8190General Description82Lines CHGR_MAIN_BATT and CHGR_AUX_BATTselects which battery will be charge

Motorola Confidential ProprietaryTheory of OperationService Manual83version, to be compatible with the existingword-wide communications with U1000(Cal

Motorola Confidential ProprietaryTDMA Timeport™ P8190General Description84Call Processor (U1000)U1000 is a single-chip microcontroller thatcontrols

Motorola Confidential ProprietaryTheory of OperationService Manual85limiting the output swing. The comparatorsare realized in software.The post-limit

Motorola Confidential ProprietaryTDMA Timeport™ P8190General Description86quadrature-phase data is then processed bya 32-tap FIR digital filter whic

The service diagrams were carefullyprepared to allow a Motorola certified tech-nician to easily troubleshoot cellular phonefailures. Our professional