Motorola T2290 Service Manual Download Page 6

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TDMA T2290/T2297

About This Manual

Table 3. DAMPS System

Table 4. Environment

Function

Specification

Modulation Type

/4DQPSK

Frequency Stability

+ 200 Hz

Duty Cycle

32.3%

Error Vector Magnitude
(

/4DQPSK mode)

Error Vector Magnitude [Digital] 12.5%

Transmit Audio Sensitivity

TOLR of –46 dB nominal

Receive Sensitivity

-116 dBm for 3% static BER

Adjacent and Alternate
Channel Desensitization

-116 dBm for 3% static BER

Less than or equal to 3% static BER

Function

Specification

Temperature

-30ºC to +60ºC

Humidity

80% RH at 50ºC

Vibration

EIA PN1376

Shock

EIA PN1376

Summary of Contents for T2290

Page 1: ...DIGITAL WIRELESS TELEPHONE Service Manual Level 3 Release 1 TDMA T2290 T2297 ...

Page 2: ...oppel or otherwise any li cense 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 ex press written permission of Motorola This manual must be returned upon Mot...

Page 3: ...bilities and policy for in warranty and out of warranty repairs in your region 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 o...

Page 4: ...t 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 prod uct service manual ...

Page 5: ... 800MHz 80 04 MHz 1 9GHz Input Output Impedance 50 ohms nominal Operating Voltage 3 6 to 4 1Vdc Dimensions 120cc Volume Weight 140 g Display 96 X 32 Graphic Matrix Analog RF Power Output 0 316 Watts 25 dBm Digital RF Power Output 0 562 Watts 27 5 dBm Automatic Power Control 9 4 dBm steps Function Specification Modulation Type FM Frequency Stability 2 5ppm Duty Cycle Continuous Audio Distortion tra...

Page 6: ... 3 Error Vector Magnitude π 4DQPSK mode Error Vector Magnitude Digital 12 5 Transmit Audio Sensitivity TOLR of 46 dB nominal Receive Sensitivity 116 dBm for 3 static BER Adjacent and Alternate Channel Desensitization 116 dBm for 3 static BER IM Less than or equal to 3 static BER Function Specification Temperature 30ºC to 60ºC Humidity 80 RH at 50ºC Vibration EIA PN1376 Shock EIA PN1376 ...

Page 7: ...T 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 ...

Page 8: ...uction 35 Automatic Call Processing Tests 35 Analog Test Measurements 35 Digital Test Measurements 35 Test Connections 36 RF Cable Test 37 To test the RF cable for proper loss 37 Set up for Analog call 38 Registration 38 Page 38 Select CALL CNTL from the To Screen 38 Origination 38 RX Sensitivity Test SINAD 39 Test Mode Commands 39 Communications Analyzer Setup 39 TX Power Out Test 40 Test Mode Co...

Page 9: ...TX Power Measurements 50 PCS Mode Handset Commands 50 Digital TX Power Out Test Procedure 50 TX Frequency Error Measurements 51 PCS Mode Handset Commands 51 TX Frequency Error Measurement Test 51 EVM Measurements 52 PCS Mode Handset Commands 52 TX Frequency Error Measurement Test 52 Disassembly 53 Introduction 53 Recommended Tools 53 Battery Removal 54 Antenna Removal 55 Back Housing Removal 55 Tr...

Page 10: ...d IC U10 B5 ZIFSYNTH U110 B7 VCO B9 TX Offset Oscillator B11 Merlyn U301 B13 Exciter B15 PA Circuit B17 RF Detect B19 Reference Oscillator B21 DCI U1800 B23 GCAP2 U1500 B25 Voltage Regulators B27 Charger B29 Audio Circuit B31 DSP U1900 B33 STUART U1907 B35 Call Processor U1000 B37 Memory B39 B Disconnect Backlight Driver B41 Keypad B43 Connectors B44 Layout Side 1 B45 Layout Side 2 B46 ...

Page 11: ...the central controller or switch The switch controls the entire cellular sys tem and serves as the interface between the cellular telephone user and the landline net work Each cell site operates on an assigned access channel and may have any number of paging and voice channels assigned to it A BAND CHANNELS Primary Control Channels 21 313 333 Secondary Control Channels 21 688 708 Voice Channels 00...

Page 12: ... their assigned channels are defined in Figure 1 Originally the B Band was assigned to the telephone company referred to by a euphe mism the Wireline carrier The A Band by default was referred to as the Non Wireline carrier guaranteed competition to the tele phone company Today the terms Wireline and Non Wireline have little meaning since telephone company carriers now operate A Band systems and v...

Page 13: ...l Voice Channels Voice channels are primarily used for con versation with signaling being employed as necessary to handle cell to cell hand offs output power control of the cellular radio telephone 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...

Page 14: ...hannels more or less un touched is the key to allowing telephones that are not capable of NAMPS or digital opera tion 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 dif...

Page 15: ...l office of the telephone company As illustrated by the deskset telephones the telephone com pany interfaces with the entire landline net work 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 sig naling is beyond the scope of this manual Refer to the Electronic Industries Associatio...

Page 16: ...30 318 328 331 324 330 326 320 322 326 319 313 140 119 98 77 56 198 177 156 135 114 143 122 101 80 140 119 98 77 56 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 fo...

Page 17: ...igh or low 8 kHz and the trail ing 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 fre quency 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 typi cally 8 kHz deviation ST ...

Page 18: ...rs 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 pro gramming Step 3 The telephone scans all twenty one control channels Step 4 The telephone tunes to the stron gest control channel 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 g...

Page 19: ...f digital signaling is not present and if the telephone is capable of dual mode operation it will default to AMPS mode Figure 6 Going into Serivce Analog Cellular Yes 1 Power Up Self Test Turn on No Svc Indicator 2 Scan Preferred System A or B 3 Scan all 21 Control Channels 4 Tune to Strongest Control Channel 5 Receive Overhead Info 8 SID matches Home SID 10 Turn Off NoSvc Indicator 9 Turn on Roam...

Page 20: ...ital capability to the cell site Overhead data is sent out on the control channels FOVC REVC 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 cellular telephone receives the voice channel assignment drops the access channel tunes to the voice channel and transpon...

Page 21: ... 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 noti fies 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 chan nel verifies the presence o...

Page 22: ...nel 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 The cell site unmutes the voice path The cellular telephone is tuned to the access paging channel and responds to requests for data The cellular Telephone decodes th...

Page 23: ...call will be handed to if there are avail able 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 tele phone acknowledges the order by a 50 milli second burst of 10 kHz signaling tone on the originally assigned voice channel The mo bile telephone then drops the origi...

Page 24: ...AT DSAT 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 ...

Page 25: ...n in progress 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 cell site receives the signaling tone DST and notifies the switch of the disconnect The cell site mutes the audio path on t...

Page 26: ... 2000 Motorola Inc TDMA T2290 T2297 Cellular Overview 16 ...

Page 27: ...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 cell...

Page 28: ...s fast enough and if we can compress the samples it turns out that we can interleave several different conver sations communication links on a single fre quency However we also have to provide some mechanism for ensuring that the trans mitter and receiver are in synchronization and we have to provide for some alternative to the control and response tones used in con ventional AMPS All of these non...

Page 29: ...enting volt ages We now have digital voice Digital Cellular A B C A B C Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6 25 volt 5 volt 75 volt 1 25 volts 1 5 volts 1 75 volts 2 volts Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6 A B C A A B C 0 volt 1 volt 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 ...

Page 30: ...Slot selector 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 ana log radios for the most part but also have additional circuitry to convert analog audio to digitized form and vice versa and to se lec...

Page 31: ...ly unlimited in vehicle use o Conserves phone s battery power while simultaneously providing a rapid battery charge EASY INSTALL HANDS FREE KIT SYN8088A o Easy Install Hands Free Car Kit Analog Audio o Includes Car Clip 2000 and Alligator Clip 2000 HEADSET o Headset Mono SYN6962A o Retractable Headset Mono SYN8284A o Headset with Boom Microphone Mono SYN8146A BELT CLIP o Universal Belt Clip spinni...

Page 32: ...ity per Assembly IN VEHICLE CLIPS o Car Clip compatible w Belt Clip On System SYN8184A o Alligator Clip compatible w Belt Clip On System SYN8185A o Car Clip 2000 compatible with Shark Belt Clip On System SYN8525A o Alligator Clip 2000 compatible with Shark Belt Clip On System SYN8526A The use of wireless devices and their accessories devices may be prohibited or restricted in certain areas Always ...

Page 33: ...pad 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 32 command erasing all repertory memory and initializing counters 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 pro grammin...

Page 34: ...umber _ _ _ _ _ _ _ _ _ _ Press 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 Continue with steps Ë Î Be sure to check with the carrier of the second telephone number for the system ID Try again will appear and you can re enter the number Press to erase a single digit or press and hold to erase ...

Page 35: ... 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 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 da...

Page 36: ...special key sequence to enter but can be ac complished 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 Some models may be available with a User Mode NAM Programming Manual which describe...

Page 37: ...o units capable of operating on two service systems A or B 0 system B 1 system A 1 End to End Signaling Bit A5 When enabled the phone is equipped for DTMF signaling during a call 1 enabled 0 disabled 1 Authentication Enable Bit A4 Enter 1 0 Bit not used Bit A3 Enter 0 1 Auxiliary Alert Bit A2 When enabled the user can place an Extended System in auxiliary alert mode and be notified of incoming cal...

Page 38: ...to one the user may access repertory by a one or two digit send sequence speed dialing 0 Disable Service Levels Bit B1 If set to 1 the service level call restrictions cannot be changed by the user 0 Lock Disable Bit B0 When set to 1 the user cannot lock and unlock the phone unit via the 3 digit lock code 11 00001000 C7 C0 C OPTION BYTE The display for step 11 represents the status of eight options...

Page 39: ...secondary scan for a digital channel 17 0708 Secondary Initial A system channel To initialize system A enter 708 18 0737 Secondary Initial B system channel To initialize system B enter 737 19 10111011 D Option Byte The display for step 16 represents the status of eight options D7 through D0 D7 msb is programmed first followed by D6 D0 Bits enter display on the right and scroll to left 1 Enhanced S...

Page 40: ...Motorola Confidential Proprietary TDMA T2290 T2297 TDMA Test Mode NAM Programming 30 ...

Page 41: ...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 pri mary status information SAT frequency Carrier...

Page 42: ...sion 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 pro cessing functions are disabled and the phone is instead controlled manually by keypad commands Table 3 Test Commands For Manual Test Mode on page 23 li...

Page 43: ... Frequency voice channel 0 5970 Hz 1 6000 Hz 2 6030 Hz 3 no SAT lock Transmit Audio Path Voice Channel Busy Idle data channel 0 enabled busy 1 muted idle Blank Receive Audio Path 0 enabled 1 muted Channel Type 0 voice channel 1 data channel RF Power Level Steps 0 7 Signaling Tone voice channel Word Sync Status data channel 0 off 1 on sync acquired TX Carrier State 0 carrier off 1 carrier on Blank ...

Page 44: ...DAMPS half rate slot 6 7 DAMPS full rate slot 1 8 DAMPS full rate slot 2 9 DAMPS full rate slot 3 RSSI Reading Blank Status Display Line 2 Blank TX Carrier State 0 carrier off 1 carrier on Audio Paths 0 enabled 1 muted RF Power Level Steps 0 7 Digital Verification Color Code 1 255 NOTE 800MHz channels are displayed as three digits Channel Numbers 1000 1023 are represented on the display as A00 A23...

Page 45: ...el handoff 5 Inbound call digital mode 6 Outbound call digital mode 7 Digital to Digital channel handoff 8 Digital to Analog channel handoff Handoffs should be performed between low middle and high frequency channels such as 991 lowest frequency 333 middle fre quency and 799 highest frequency In digi tal mode slots 1 4 2 5 and 3 6 should be verified Analog Test Measurements RX Sensitivity SINAD RX...

Page 46: ... before start ing tests Figure 22 Connections for PCS Testing HP83206A HP8920B HP83236B Back View Test Connections dB POW ER RX TES T SIN AD V AC Level 0 00011 RF Gen F r eq Am pl itu d e M H z d Bm Atte n Ho ld Ou tp u t Por t AFg en 1 Fr eq AF Ge n1 To KHz KHz AFg en 2 Fr eq AF Ge n2 To Filter 1 Filter 2 Ext Load R To Sc re en 8 24 0 00 OF F O N 83236B PC S IN T E RFACE P O W E R T E ST SE T 1 7...

Page 47: ...measure and adjust the parameters of a telephone it is im portant 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 ...

Page 48: ...e 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 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 dB...

Page 49: ... 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 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 Sinad measured on t...

Page 50: ...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 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 carrie...

Page 51: ...N RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER RADIO INT More 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 wil...

Page 52: ...DER RADIO INT More 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 Test Mode Commands 1...

Page 53: ...t annunciator will light if the mobile properly signals the Test Set View FM Deviation for the reading The transponded peak SAT FM de viation should be 2 kHz 200 Hz The demodulated signal on the com munications analyzer should have an audio frequency of 6000 Hz CALL CONTROL Display Active Register Page Access Connect Order MS Id Active Register Page Handoff Release Chng PL 0 Phone Num 1111111111 S...

Page 54: ...rn on transmit carrier 14 Enable signaling tone View FM Deviation for reading The peak ST deviation measured on the communications analyzer should be 8 kHz 800 Hz deviation The demodulated signal on the com munications analyzer should have an audio frequency of 10 kHz TX TEST dB TX Frequency 834 9900 MHZ Tx Power 27 49 dBm FM Deviation 7 890 KHz 10 0000 KHz AF Freq Tune Mode Auto Manual Tune Freq ...

Page 55: ...Offset On Off Firmware B 05 04 Total RAM 928kB Serial No US35360396 RF Offset ON Off Gen Anl 0 000000 MHz Low Battery 10 min PCS Mode Off On User Def Base Freq 800 000000 MHz Chan Space 30 0000 KHz Gen Anl 45 000000 MHz PCS RF I O 0 0 dB RF GEN RF ANL AF ANL SCOPE SPEC ANL ENCODER DECODER RADIO INT SERVICE More Set PC Mode to On CALL CONTROL Display Active Register Page Access Connect Cntrl Order ...

Page 56: ...Call Cntrl Screen under the Traffic Channel Assignment section in the Band field select US PCS CALL CONTROL Display Active Register Page Access Connect Cntrl Order MS Id Active Register Page Handoff Release Send SMS Phone Num 1111111111 System Type DCCH Cntrl Chan 42 Dig Analog US PCS Amplitude 50 0 SID 231 To Screen CALL CNTL CALL CNFG CALL CNFG 2 ANLG MEAS SPEC ANL AUTHEN DIG MEAS More Data Meas...

Page 57: ...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 tele phone 3 Connect the RF connector to the radio and power on Registration 1 Put the Test Set in Active state by se lecting 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 ...

Page 58: ...Amplitude 50 0 SID 231 To Screen CALL CNTL CALL CNFG ANLG MEAS SPEC ANL DIG MEAS More Data Meas MAHO dBm Traffic Chan Assisgnment Type Chan Slot Pwr Lvl DVCC DTC 1 1 4 1 RSSI Curr Chan dB 51 BER 0 01 Neighbor List Channel RSSI 10 113 dBm 135 113 dBm 36 89 dBm 459 113 dBm 70 113 dBm Figure 37 Call Control Screen Measuring MAHO 1 From CALL CONTROL screen set up a call Test Set must be in Connect mod...

Page 59: ...number of bits to be mea sured in theBER 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 forBER reading 13 Select ARM 14 After the actual number of bits has been transmitte...

Page 60: ...ct 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 PCS Mode Handset Commands 1 Enter 575 Digital signaling mode 2 11333 Loads synthesizer Channel 3 Display prompt Y enter time slot 4 Display prompt Y enter b...

Page 61: ...et 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 PCS Mode Handset Commands 1 Enter 575 Digital signaling mode 2 11333 Loads synthesizer Channel 3 Display prompt Y enter time slot 4 Display prom...

Page 62: ...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 PCS Mode Handset Commands 1 Enter 575 Digital signaling mode 2 11333 Loads synthesizer Channel 3 Display prompt Y ent...

Page 63: ...disassembly and reassembly Recommended Tools The following tools are recommended for use during the disassembly and reassembly of the TDMA Modulus 3 Anti Static Mat Kit RPX 4307A includes q Anti Static Mat q Ground Cord q Wrist Band T6 Torx driver CAUTION Many of the integrated circuit devices used in this equipment are vulnerable to damage from static charges An anti static wrist band connected t...

Page 64: ...oval Use the thumb and index finger to remove the antenna using a counterclockwise twisting motion Battery Removal 1 Turn off the telephone 2 While holding the phone firmly with one hand use the index finger on the other hand to press the latch on the battery cover 3 Slide the cover back to release it from the phone ...

Page 65: ...e thumb and index finger to grab the batteries and pull them out of the telephone housing Back Housing Removal 1 Using a T6 Torx driver unscrew the five torx screws that attach the back housing to the main body of the phone 2 Carefully lift the back housing and pull it off the main assembly ...

Page 66: ...ne hand use the thumb middle and index fingers of the other hand to carefully separate the transceiver phone from the main assembly Display Removal 1 Lift the latches that hold the display in place to separate the display from the main board 2 Carefully separate the display from the main board taking special care not to damage the flex assembly ...

Page 67: ...zers lift the flex connector to release the flex assembly from the main board Carefully lift the display from the main board Keypad Removal Lift the keypad from the front housing using the thumb and index fingers Speaker Removal Carefully pry off the speaker from the front housing using tweezers ...

Page 68: ...Disassembly TDMA T2290 T2297 Keypad Removal Motorola Confidential Proprietary 58 ...

Page 69: ... it is a part and sufficient de scription of the desired component to iden tify it Parts List Mechanical Explosion The Mechanical explosion contains a table of mechanical part numbers that may change after publication of this manual For an up dated list of part numbers contact an AAD representative at the numbers listed above Electrical Parts The eletrical parts list provided in this manual contai...

Page 70: ...R REAR HOUSING ALERT REAR HOUSING ALERT GROMMET GRIP LEFT DOOR BATTERY SCREW BATTERY MYLAR RIGHT SHAFT W CVR SPEAKER DISH MIC KEYPAD FRT HOUSING LENS GRIP RIGHT SPRING ASSY ANTENNA 8588448K01 5009076E25 1585832K01 5009005J07 0103884K05 0509472U01 3285837K01 SHN7282A 0309315B07 4085941K01 4709038K01 5009135L07 5509242E01 8585965H01 6185840K04 3285838K03 1585830K01 3885839K02 SNN5542A 7288454K02 150...

Page 71: ...43N40 21 13743N40 21 13743N40 21 13743L17 21 13743L05 21 13743N50 21 13743E20 21 13928N01 23 11049A89 21 13743L01 21 13743N35 21 13743L01 21 13743N40 21 13743N40 21 13743N40 21 13743N37 21 13928K09 21 13928K09 21 13743N40 21 13743N40 21 13928N01 21 13743L11 21 13743N40 21 13743N40 21 13928N01 21 13743E20 21 13743N40 21 13928N01 21 13743N26 21 13743N50 21 13743E20 21 13743E20 23 11049A62 23 11049A6...

Page 72: ...3743N03 21 13743N40 21 13743L17 23 11049A40 21 13743N50 21 13743L17 21 13743E20 21 13743N09 21 13743L17 21 13743L01 21 13743L01 21 13743N33 21 13743N33 21 13743L27 21 13741A61 21 13743N50 21 13743L27 21 13743N69 21 13743N18 21 13743N67 21 13743L41 21 13743N40 21 13743N40 21 13743L25 21 13743N40 21 13743N40 21 13743N30 21 13743N40 21 13743N03 21 13743N22 21 13743N40 21 13743N05 21 13743N30 21 13743...

Page 73: ...33 48 09877C08 48 09877C08 48 09948D13 48 09948D33 48 09948D33 48 09948D12 48 09948D33 48 09606E02 48 09606E02 48 09948D12 48 09948D12 48 09606E02 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 48 09496B11 91 09381T01 91 03913K04 91 62928D01 91 03917K04 91 85861J02 91 03913K06 91 85623G02 91 03913K03 9...

Page 74: ... 06 62057M36 06 62057N01 06 62057M90 06 62057M74 06 62057M74 06 62057M74 06 62057M74 06 62057M74 06 62057M74 06 62057M74 06 62057M74 06 62057M74 06 62057N03 06 62057M74 06 62057M98 06 62057M01 06 62057M74 06 62057M01 06 62057N23 06 62057N09 06 62057M67 06 62057M74 06 62057M74 06 62057N17 06 62057M66 06 62057M58 06 11079A20 06 62057N23 06 62057N23 06 62057N09 06 62057N15 06 62057N15 06 62057M84 06 ...

Page 75: ...62057M98 06 62057M38 06 62057M98 06 62057M90 06 62057M90 06 62057N11 06 62057M76 06 62057M62 06 62057M38 06 62057M62 06 62057M50 06 62057M56 06 62057M46 06 62057M43 06 62057M43 06 62057A40 06 62057A40 06 62057A05 06 60076S01 06 62057N09 06 62057M01 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 6205...

Page 76: ...rietary TDMA T2290 T2297 Parts List 66 VR501 VR502 VR960 XFMR37 Y1500 48 09788E06 48 09788E06 48 09788E06 58 85758J03 48 09995L08 Reference Designator Part Number Reference Designator Part Number Reference Designator Part Number ...

Page 77: ... band and 192 36 MHz in the PCS band The RX loop operates from 981 1006 MHz in the cellular band and from 1021 1051 MHz in the PSC band The IC also provides regulator and superfilter functions for its synthesizer and the external VCOs The IF portion of the IC operates with an input fre quency of 112 32 MHz The IC is linear up to the I and Q outputs of the baseband fil ters can operate with interna...

Page 78: ...edback to set the voltageto the voltage controlled attenuator in an automatic power control loop Power output is continually monitored The transmitter and receiver are duplexed with bandpass filters to a switch that feeds the signal to either the antenna connector or the external antenna jack Analog TX Audio Processing The analog voice signal coming in through the microphone is taken by the CODEC ...

Page 79: ... parallel bus intercon nected to the DSP s parallel memory bus The DSP Timer module provides a timer function controlled from DSP The IO test 19 44MHz clock control SPI and CS switch module provides a 4 bits gen eral purpose I O port with programmable data direction chip testing output pins muxed with IO pins 19 44MHz clock control SPI bus enable control and special RAM chip select switch function...

Page 80: ...ge Pump Output High End PA Regulator Differential Speaker earpiece amplifier Single ended Alert amplifier Single ended Auxiliary amplifier Turn on control signals to activate the radio Turn off control signals to turn off the radio if an error is detected Battery Charger SPI interface 10 channel 8 bit A D 8 bit D A Microphone amplifiers DSC bus buffers Audio CODEC with serial interface SPI interfa...

Page 81: ...A 5V CELL_TX 824 849Mhz PCS_TX 1850 1910Mhz ZIF IC FRACTIONAL N SYNTHESIZER LVPADC CLKIN FMOUT Φ I_OUT Q_OUT AGC_RSSI CEX CLK DATA HV_SPLY TXPRE_IN VCC VCA_CNTL ATTN_CNTL MODE_A_D BAND_SEL OVCO_C MOD_EN OUT_BIAS RF_DET PCS_PA CELL_PA 1st Mixer LNA LNA 1st Mixer Retractable Antenna Cell_Duplexer To DCI To GCAPII To DCI X2 RXPRE_IN Main VCO Discrete MC13747 Diplexer Internal Buffers TX_SF A_D QMOD_K...

Page 82: ...SR_VCCOUT SRAM VCC PJ7 BOOM_MIC_DTCT PT3 MAIN_BAT_SER_DAT PT5 AUX_BAT_SER_DAT PS7 OSC_DIS DISP_CS EE_EN PT0 KEYPAD AND DISPLAY S C I D A T A B U S V1 2 75V SUPPLY RX_2 75V 2 75V SUPPLY 2 75V 2 75V SUPPLY TX_2 75V 5V SUPPLY VSIM V2 V3 VSIM VOLTAGE DOUBLER VSIN B B VIN1 VIN2 VIN3 MAIN SWITCH CHARGE CONTROL MAIN_BATT MAIN BATT AUX_FET AUX SWITCH AUX_BATT AUX BATT B CHRG_AUX_BATT CHRG_MAIN_BATT AUX_FE...

Page 83: ...ikely to fail Test Point Measurements The measurements labeled on the service diagrams are approximate values and may vary slightly These measurements are de pendent on the accuracy of the test equip ment 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 ...

Page 84: ... will open not allowing the internal antenna path to be used During this state the external RF path will be used Diplexer FL100 is used to isolate the two operating frequency bands The cellular 800MHz frequencies will be routed to duplexer F500 The PCS 1900MHz frequencies will be routed to duplexer FL453 F500 is a 800MHz duplexer used to isolate the cellul ar 800MHz transmit and receive frequencie...

Page 85: ...ent from Motorola and must be returned upon Motorola s request Motorola Confidential Proprietary Colored boxes represent the area in which the components are placed Channel 333 Cellular TX Freq 834 99MHz PCS TX Freq 1859 97MHz Cellular RX Input Freq 879 99MHz PCS RX Input Freq 1940 01MHz RX Input 20dBm TX Power Level 2 TX SIGNAL RX SIGNAL B3 L562 C RX TX RX TX 800 Mhz 1 9Ghz 21 41dbm 39 64dbm 47 7...

Page 86: ... is then inje cted into the Down Converter of U10 In 800MHz mode the receive signal is mi xed with the VCO and the result is the receive intermediate frquency IF signal which is filt ered by FL20 prior to entering the ZIF ZYN IC U110 In 1900MHz mode the VCO output DBLR_IN goes through a frequency doubler internal to U10 before getting mixed with the 1900MHz receive signal This process allows the 1...

Page 87: ...hz 35 18dbm 1940 01 Mhz 30 16dBm 893 97Mhz A B C B Band 2 81V 0V 800 1900 RX On Off 0V C 18 3dbm 1940 01 Mhz 14 7dBm 893 97Mhz 20 1dbm 1940 01 Mhz 14 9dBm 893 97Mhz 1 2 3 4 5 6 U10 IF IF 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TDMA T2290 T2297 Front End IC This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be...

Page 88: ...1 184MHz The 2nd LO is divided down the n 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 U1800 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 ro...

Page 89: ...25 page B23 page B23 1 4v 650mvp p 2 75v 15 99dbm 157 32Mhz 18 82dbm 192 4Mhz 2 6v 2 75v 2 52v 5v 2 75v 2 75v 24 68dbm 112 32Mhz 0v 450mvp p 4 8v 4 8v 4 8v 2 48v 4 7v 47 5dbm 221 184Mhz 16 3dbm 992 31Mhz A 1 61v TDMA T2290 T2297 ZIF_SYNTH U110 This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola ...

Page 90: ... oscillate at a frequency of 112 32 RX frequency In the 1900MHz band U306 will oscillate at a fre quency of 112 32 RX 2 RX_SF Super Filter comes from U110 and provides a clean supply voltage to the VCO module LP_SWITCH control comes from U110 In Analog mode the input to Q880 becomes high causing it to switch on This condition will complete the filter circuit path to ground thus allowing the filter...

Page 91: ...PLIES Colored boxes represent the area in which the components are placed VCO Signal Channel 333 Cellular VCO Freq 992 31MHz PCS VCO Freq 1026 165MHz Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request A 12 61 dBm 800MHz 992 31MHz 8 31 dBm 1900MHHz 102...

Page 92: ...d This will increase the loop filter bandwidth by decreasing the amount of resistance at the discharge path of C303 During low curent conditions R308 will not be grounded This will decrease the loop filter bandwidth by increasing the amount of resistance at the discharge path of C303 LP_SWITCH control comes from U110 In Analog mode the input to Q301 becomes high causing it to switch on This condit...

Page 93: ...C315 C304 C305 R302 Q301 C302 Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Channel 333 Cellular TX Offset Freq 157 32MHz PCS TX Offset Freq 192 36MHz TX SIGNAL ...

Page 94: ... 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 When operating in th e 800MHz band the carrier is routed through the cellular fi nal power amplifier and out to the 800MHz transmit circuit In 1900MHz mode the cellu lar final power amplifier is disabled via the 800 _1900 line and ...

Page 95: ...800 1900 D On TX Off C Analog Digital B 06V 2 98V 29 31 dBm 1859 97MHz 2 11v 1 81v 1 81v 1 38v 1 66v 1 52v 09V 2 83V 05V L351 FL413 C1508 C351 C350 R311 R53 C413 C334 C339 C402 XFMR377 C412 L378 C389 C401 C428 L381 C333 L401 C499 FL350 U301 MERLIN C454 C300 L452 L451 R452 C425 C335 R425 R403 C427 C343 R342 R341 C18873 C18871 C342 TDMA T2290 T2297 Merlin TX U301 B13 VCO_OUT VCC_OFFSET2 OVCO_E C487 ...

Page 96: ...ge 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 In analog mode A_D is pulled high causing Q811 to be switched off This state causes a voltage drop across R811 thus having a lower voltage level at 800BIAS In digital mode A_D is pulled low causing Q811 to be switched on During this ...

Page 97: ...910 R409 C411 C404 C455 L400 C452 R450 C410 R405 L405 C405 L406 Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Channel 333 Cellular TX Freq 834 99MHz PCS TX Freq ...

Page 98: ...y varying the biasing of the PA U801 In 1900MHz mode only one biasing method is needed since 1900M Hz mode only operates in digital mode Q1807 controls the supply voltage to U801 The PA supply is sourced from the B line In 800MHz mode 800KEY is held low ca using Q1807 to switch on When 800KEY is pulled high Q1807 is turned off and the supply to U801 is cut off Q901 controls the supply voltage to U...

Page 99: ...C808 L802 R10021 C830 C802 R10115 U801 Q901 C801 C800 Q1807 U901 R908 R907 R906 C906 R999 R10024 C914 C905 C904 C907 L969 R911 C911 C912 C903 C902 R809 C821 L800 C820 C814 C806 C805 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibit...

Page 100: ...tput through CR504 During high power steps the signal passes through amplifier Q502 and then sent to the RF _DET output through CR502 Proper PA loads need to be defined when operating in 800MHz analog and 800MHz digital mode This is done by making Load B active or inactive on the PA output path When transmitting in 800MHz analog mode LOAD A is used and LOAD B is bypassed LOAD B is bypassed by allo...

Page 101: ... 1 21V 2 76V A B F C D B Power Step 2 3 4 5 6 7 A 1 51V 991V 1 01V 456V 1 24V 94V 2 89V 2 87V 2 87V 2 86V 14V 14V G H I G H I Analog Digital VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Channel 333 Cellular TX Freq 834 99MHz PCS TX Freq 1859 97MHz TX SIGNAL 22 6 dBm 834 99MHz 8 43 dBm 1859 97MHz 23 5 dBm 834 99MHz 2 97V 09V 24V 31V 1V 0V TDMA T2290 T2297 RF ...

Page 102: ...age to U150 and Q152 U1800 DCI 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 output of U150 is split into two signals RF_19 44MHz is used for the RF frequency reference Output 19 44MHz is amplified by ...

Page 103: ...803 C18853 page B35 page B23 page B25 page B37 VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request U1500 C1911 page B23 page B33 page B25 page B7 ...

Page 104: ...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 Internally generates clocks from single master input Analog wide band forward data signalling functio ns with SPI interface Analog modulator interface Analog discriminator interfaces RF Discontinuous Receive du ring Manchester decoding On chip voltage refe...

Page 105: ...ge B19 Q505 C TX On Off G TDMA T2290 T2297 DCI U1800 R1830 Q1803 R10013 C1801 Q1802 C1804 C1805 R1804 C1800 R1800 C1802 R1811 R1801 R1806 C132 R1810 R1820 C1803 C1506 1 12 13 25 36 37 48 3 2 4 5 6 8 7 9 10 11 14 15 16 17 20 18 19 21 22 46 23 47 27 30 31 32 29 28 26 33 34 35 45 44 43 42 41 40 39 38 24 RBIAS VREBUF B23 Motorola Confidential Proprietary This manual is Motorola property Copying or dis...

Page 106: ...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 8 channel 8 bit A D 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 BLOCK DIAGRAM NOT NECE...

Page 107: ...29 TX_2 75 QMOD_KEY SW_QMOD_KEY U1800 20 page B23 PWRON U960 6 page B29 2 75V AUDIO_IN C18908 page B41 U1000 page B37 TDMA T2290 T2297 GCAP2 B25 CR1563 Y1500 C1503 C1502 R1513 R1512 Q1501 L907 L1599 L1593 U1500 GCAP2 R1553 R1516 R1521 R1524 C1510 C1516 R1537 C1511 C1521 C1523 C1522 C1514 C1580 MIC_OUT C1594 C1536 C1539 C1540 AUX_OUT C1544 CD_CAP R1554 SPKR_IN SPKROUT PA_DRV PA_SENSE LI_CELL R10133...

Page 108: ...e negative supply generator It is used to supply 5V to the LCD display contrast circuitry U903 generates a negative voltage by generating a 3 Vpp square wave from the 2 75V source The signal is then rectified to generate a 3V supply This supply is not at a sufficient level for proper operation of the LCD display In order to increase the negative voltage a sample of a square wave that U903 produces...

Page 109: ...perty Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed B 2 75V page B29 page B25 U1501 CR1540 CR1590 U903 TDMA T2290 T2297 Voltage Regulators B27 ...

Page 110: ...harged through Q18 12B Q1812B also helps in pre venting reverse battery conditions If an over voltage condition exists Q962 needs to be completely turned off to protect the circuitry of the phone The SENSE line in the U960 is used to determine whether there is a over voltage condition If an overvoltage condition exists the TRICKLE_SET and CHRG_EN ports in the U960 will be disabled Having these two...

Page 111: ...roprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request Charger On Off A C B 2 68V 11V 4 47V 0V 3 79V 0V D Supply External Battery C829 J604 Q1812 VR960 J1 R1593 Q1597 C1589 C1574 C1573 CR1562 Q962 R964 C1590 R1596 Q1598 CR1598 R1598 U960 TDMA T2290 T2297 Charger B29 J605 4 2 1 ...

Page 112: ...nd through R1540 There are two distinct audio paths for the microphone One is for the auxilia ry microphone headset mic and the other is for the internal microphone This is not the case with the speaker audio paths The headset speaker and the internal speaker share the same audio path which comes from the GCAP U1500 In order to disable the inter nal speaker when the headset is attached the phase o...

Page 113: ...95 VR501 C18900 VR502 R10096 C18901 J940 C18858 VR1551 C1519 R1536 C1572 C1520 C1571 J942 J941 TDMA T2290 T2297 Audio Circuit B31 Q1551 R1540 J900 C18850 C1582 C1583 R1523 R1581 VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written cons...

Page 114: ...tion 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 4 Channel equalization 5 Channel decoding 6 Channel encoding 7 Audio functions 8 MAHO measurements BLOCK DIAGRAM NOT NECESSARY REFER TO PAGE B33 Digital Control channel 1 Essentially DTC minus audi...

Page 115: ... 75V 19 44MHZ C153 page B21 2 75V page B25 DSP_RST U1000 page B37 page B25 C1902 2 75V page B25 TDMA T2290 T2297 DSP U1900 B33 C9910 R1910 R1912 C1911 U1900 R1900 C1900 C1910 R10117 C1904 C1903 C1906 CK12 VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed R1913 R1901 VDDA VPP C1905 Motorola Confidential Proprietary This manual is Motorola property Copying or distr...

Page 116: ...xisting 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 Lucent device The Lucent timer can be set up to either stop on count 0 or to repeat the last count interval We need a counter t...

Page 117: ...00 page B33 U1900 page B33 page B25 VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request U1000 page B37 A B C Accessory CLA AC Chrgr DHFA A TX On Off 0 1V 2 82V On Off ...

Page 118: ...canning Display driving Control of audio and RF hardware Call processing signalli ng 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 sto...

Page 119: ...U1200 U1500 U1800 KEYPAD_BUS CALL_ADD CALL_DATA SPI_BUS U1903 U1200 U1300 J7 U1903 U1200 U1500 U1908 U1800 CMP_LVL DATA_OUT R1013 page B41 32kHz U1500 page B25 VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed KPR 1 5 KPC 1 4 MISO MOSI CLK R1088 page B44 Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited...

Page 120: ... bus The WP line is used during EPROM flash con ditions When the EPROM is not being flash ed WP is at a low state This condition will switch Q1811 off thus allowing the gate of Q1806 to be pulled high A high state at th e gate of Q1806 will switch Q1806 off thus not allow ing WP from U1200 to be pulled high by B During flashing condi tions WP is pulled high This condition will switch Q1811 on allo...

Page 121: ...00 page B37 VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be returned upon Motorola s request page B29 SRAM_S1 LSTRB U1500 U1000 page B25 page B37 RDB U1907 58 page B35 C1023 R1090 R1092 C1021 C109...

Page 122: ...will be tu rned on when a high state is present at the gate This will then ground R1573 and allow the B line to discharge through R1573 The process of discharging the B line help s in eliminati ng any parasiti cal voltages on the B line wh en the power is re covered prior to the 3 second time out When the phone is powered on 2 75V will be present This will switched Q1574A off and allow the gate of...

Page 123: ...ight On Off A Accessory CLA AC Chrgr DHFA CR1001 R1011 R1010 R1097 Q1099 C1546 R1574 R1575 R1573 Q1809 R10134 Q1810 TDMA T2290 T2297 B Discharge Backlight Driver B41 C18913 C18908 R10127 R1005 R1013 R1099 R1000 R1014 R1012 R10131 Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited without prior written consent from Motorola and must be ret...

Page 124: ...his transistion and cycle the power to the phone A power cycle can also be done externally using TP29 TP29 is a mupliplexed line used for power cycling and an audio output line CR730 isolates the power cycle function to the KEY_ON _OFF line U1000 will scan the row KPR1 KPR6 and column KPC1 KPC4 matrix to determine if a key is being depressed One key press will h ave a row and column combi nation t...

Page 125: ...TDMA T2290 T2297 KEYPAD B43 R10106 C112 R10107 R10108 R10102 R10103 R10104 R10105 R10100 R10109 C18886 R10110 C18887 R730 CLEAR STORE 2 ABC 0 OPR 5 JKL 8 TUV 1 4GHI 7PQRS 3DEF 6MNO 9WXYZ RCL END SND FCN C18885 CR730 Colored boxes represent the area in which the components are placed Motorola Confidential Proprietary This manual is Motorola property Copying or distribution strictly prohibited witho...

Page 126: ...Connectors B44 TP25 TP961 TP23 TP20 TP28 TP29 TP21 TP22 R729 R735 R734 R728 R727 R726 R725 R724 R723 R722 C711 R1088 J902 R712 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 R721 GND B MANUAL_TEST ON AUDOUT SCI_RXD SCI_TXD CMP AUDIN VOLTAGE SUPPLIES Colored boxes represent the area in which the components are placed Motorola Confidential Proprietary This manual is Motorola property Copying or distribution...

Page 127: ... C1579 C1575 R10117 C1564 R10124 R1812 R10013 C1801 Q1802 C1804 C1805 R1804 C1904 C1903 C1906 C1800 R1800 C1802 R1811 R1801 R1806 C132 R1810 U1800 DCI R1820 C1803 C1506 R393 C312 R350 C311 C316 C399 C317 R305 L302 Q351 Q391 L303 CR302 C306 C308 C313 R391 C310 C309 CR300 R304 R306 C307 CR301 R303 R392 R308 R301 C315 C304 C305 R302 Q301 C302 L351 FL413 C1508 C351 C350 R311 R53 C413 C205 C334 C339 C4...

Page 128: ...2 C252 C261 C262 C253 C1505 C204 C272 C134 C133 FL452 C407 C414 L407 R451 C400 R406 Q411 Q401 L404 L403 C408 R10018 C406 Q475R10016 R10017 FL454 R407 R408 S512 S508 R729 R735 R734 R728 R727 R726 R725 R724 R723 R722 C711 R1088 R10101 DS909 R1108 J902 R712 C1546 R1574 R1575 DS910 R1109 R1573 DS912 R1111 R730 R10014 R1110 DS911 R1107 DS908 R1592 C1592 R1106 DS907 R1514 C1598 R1597 C1507 R10106 C112 R...

Page 129: ...___________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ ____________________________...

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Summary of Contents for T2290

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