Motorola MTH500, Service Manual

Page 1: ...e Radio R1 380 400 MHz PT811F Detailed Service Manual Part Number 6802963C70 6802963C70 Printed on recycled paper Environmentally friendly cover and spiral bound European Publications Department 68P02963C70 O Issued 05 02 ...

Page 2: ...on of law in the sale of a product Trademarks MOTOROLA and the Stylized M Logo are registered in the U S Patent and Trademark Office All other product or service names are the property of their respective owners Motorola Inc 2001 Safety And General Information Important Information on Safe and Efficient Operation Read this Information before Using your handset The information provided in this docu...

Page 3: ...e antenna when the radio is IN USE Holding the antenna affects call quality and may cause the radio to operate at a higher power level than needed Approved Accessories For a list of Approved Motorola accessories please see REPLACEMENT PARTS AND KITS on page 45 Electromagnetic Interference Compatibility NOTE Nearly every electronic device is susceptible to electromagnetic interference EMI if inadeq...

Page 4: ... areas such as below decks on boats fuel or chemical transfer or storage facilities areas where the air contains chemicals or particles such as grain dust or metal powders and any other area where you would normally be advised to turn off your vehicle engine Areas with potentially explosive atmospheres are often but not always posted Blasting Caps and Areas To avoid possible interference with blas...

Page 5: ...tion Description 1 3 Theory of Operation 2 1 Section Introduction 2 1 Block Diagram Overview 2 1 Receiver Section 2 2 Transmitter Section 2 3 Digital Section 2 3 Frequency Generating Section 2 4 Block Diagrams Descriptions 2 5 Receiver Path 2 5 Transmitter Path 2 6 Digital Mode of Operation 2 7 Frequency Generating Section 2 8 Main Synthesizer 2 9 RX Second Local Oscillator LO 2 9 Offset VCO 2 9 D...

Page 6: ...near Regulator 2 20 V3 Linear Regulator 2 20 V4 Linear Regulator 2 20 Switcher 1 Synchronous Buck Mode Converter 2 20 Switcher 2 Boost Mode Converter 2 21 DSC Linear Regulator 2 21 TS_REF Linear Regulator 2 21 VREF1 Linear Regulator 2 21 VREF2 Linear Regulator 2 21 Current Limit 2 21 RS232 SB9600 2 23 Battery ID 2 23 Radio Audio System 2 23 Tx Path 2 23 Rx Path 2 23 Frequency Generating Section De...

Page 7: ...F PWM1 VSIMI _5 6V Test 3 14 Transmitter Troubleshooting 3 15 Standby Current Troubleshooting 3 15 Open Loop Power Test 3 16 Open Loop Power Test Cont 3 17 Open Loop Power Test Cont 3 18 WPIC Test 3 19 Closed Loop Power Test 3 20 Transmitter Current Consumption Test 3 21 Receiver Troubleshooting 3 22 Synthesizer Troubleshooting 3 23 Synthesizer Troubleshooting Cont 3 24 Second LO VCO Test 3 25 Off...

Page 8: ...ing the main board 5 9 Removing and Installing the Keypad and LCD Boards 5 10 Removing the keypad and LCD boards from the unit 5 10 Installing the keypad and LCD boards 5 11 Removing and Installing the LCD Module Assembly 5 12 To remove the LCD module assembly from the unit 5 12 To install the LCD module assembly 5 13 Removing and Installing the Keypad 5 14 Removing the keypad 5 14 Installing the ...

Page 9: ...Contents 68P02963C70 O ix Appendix 2 Test Equipment Service Aids Tools A2 1 Appendix 3 Self Check Error Fail Code Tables A3 1 General A3 1 Self Check Error Codes A3 1 Appendix 4 Glossary A4 1 ...

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Page 11: ...olute Position 5 Power Level A 0 to 0 7 Watts B 0 7 to 0 9 Watts C 1 0 to 3 9 Watts D 4 0 to 5 0 Watts E 5 1 to 6 0 Watts F 6 1 to 10 0 Watts Position 6 Physical Packages F Limited Keypad With Display H Full Keypad With Display K Limited Controls Basic Display N Enhanced Controls Enhanced Display Position 7 Channel Spacing 1 5 kHz 2 6 25 kHz 3 10 kHz 4 12 5 kHz 5 15 kHz 6 25 kHz 7 30 kHz Position ...

Page 12: ... 100 kHz Interfering Signal Level 4 BER 40 dBm Frequency Stability Locked to Base Not Locked to Base 100 Hz 2 ppm Battery Types Standard SNN5705B 800mAH LiIon Standard SNN5705C 800mAH LiIon High Capacity SNN5706A 1100mAH LiIon Spurious Rejection Interfering Signal Level 4 BER 45 dBm Spurious Emissions Conducted 30MHz 1GHz 1GHz 4GHz Radiated 30MHz 1GHz 1GHz 4GHz 36dBm 30dBm 36dBm 30dBm Frequency St...

Page 13: ...battery 800mAh LiIon Blue with battery door Chargers FLN9468A Dual Pocket Desktop Charger SPN4716B Travel charger SYN7455A Plug Adapter UK for travel Charger SYN7456A Plug Adapter EU for travel Charger FLN9469A Vehicular battery charger Vehicular Adapters FLN2850A Car Kit FLN9569A Stand alone car cradle Audio accessories WADN4184A Headset with Boom mic and in line PTT FLN9470A Headset with Boom mi...

Page 14: ...Foreword xiv 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 15: ...n technique that transmits information by altering the phase of the radio frequency RF signal Data is converted into complex symbols which alter the RF signal and transmit the information When the signal is re ceived the change in phase is converted back into symbols and then into the orig inal data The system can accommodate 4 voice channels in the standard 25 kHz channel as used in the two way r...

Page 16: ...roller of the Digital RF Board It controls the operation of the transmitter receiver audio and synthesizer integrated circuits located in the RF section It communicates with the keypad and display The Digital Signal Processor DSP which performs modulation and de modula tion functions for the radio It also performs Forward Error Correction and other correction algorithms for overcoming channel erro...

Page 17: ...cartesian Feedback output power passes to the antenna through the Isolator Antenna Switch and Harmonic Filter Receiver Path Description The receiver path includes the Antenna Switch SAW LNA ceramic filter mixer Crystal Filter and WPIC World Phone IC The first IF consists of the Crystal Filter and WPIC ASIC Frequency Generating Section Description The frequency generating section provides descripti...

Page 18: ...Overview 1 4 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 19: ...plemented by the detailed block diagram and detailed circuit descrip tion Block Diagram Overview The main Digital RF Block contains the following four sections see Figure 1 An overview of these four sections is provided in the following paragraphs Receiver Section Transmitter Section Digital Audio Section Frequency Generating Section Synthesizer ...

Page 20: ... receiver section includes the following main components Antenna Switch Limiter Front Filter Low Noise Amplifier LNA Second Pre selector Attenuator Mixer IF Filter Balun WPIC Digital Block DC Block Transmitter Receiever Synthesizer LCD KeyPad Audio Battery Antenna Antenna Switch Main Board ...

Page 21: ...r modulation of the MTH500 It also includes a novel cartesian feedback loop to enhance its transmitter linearity and reduced splattering power into adjacent channels The transmitter path consists of a novel cartesian feedback loop that contains the forward and feedback paths The forward path includes the low noise ODCT Off set Direct Conversion Transmitter Balun Attenuator and Power Amplifier The ...

Page 22: ... generating section contains the following components REF Oscillator TCXO Main Synthesizer consists of the WPIC s PLL and the Main Voltage Con trolled Oscillator VCO 2nd Local Oscillator LO VCO together with the LMX Dual Synthesizer Offset VCO together with the LMX Dual Synthesizer ...

Page 23: ...Block Diagram This block type filter which defines the receive frequency range blocks the half IF and image frequency entry and reduces the RF oscillator leakage The signal is mixed with the local os cillator to create the first IF at 109 65 MHz The signal is filtered by the crystal filter and sent to the WPIC ASIC The WPIC performs down conversion to the second IF at baseband frequency 0 Hz and c...

Page 24: ... routed to the DSP The DSP performs coding Error Correction and modulation From the DSP the signal is sent to the WPIC Figure 3 Transmit Path Block Diagram In the WPIC data is converted into analog signal This signal is also filtered From the WPIC the data is injected to the LNODCT In the LNODCT the data is mixed with RF signal From the differential output of the LNODCT the modulated RF signal is ...

Page 25: ...upplies power to the radio using step down PWM regulator sup plying 1 88 VDC to the Redcap core V3 linear regulator 2 775VDC to the exter nal memories display and Redcap peripheral modules supplying V2 to the A D converter GCAP internal logic and audio amplifier The regulator s power down mode is controlled by the redcap which senses the ON or OFF condition The DSP performs signalling and voice en...

Page 26: ...LO VCO together with the LMX Dual Synthesizer Offset VCO together with the LMX Dual Synthesizer Figure 5 Frequency Generation Block Diagram Offset VCO Second LO Dual Synthesizer U808 Main VCO Main Synthesizer 493 65 513 65 MHz to RX Mixer 113 65 MHz to Offset Mixer 493 65 513 65 MHz to TX Mixer Reference Oscillator TCXO Divider OSC_IN DOI F IF Section RF Section DORF 219 3MHz FINIF FINRF 50kHz 100...

Page 27: ...the WPIC internal PLL modules and Main VCO on board It produces the LO signal to down convert the receive signal to the first IF 109 65 MHz frequency and to up convert the 113 65 MHz transmitter IF frequency to produce the RF carrier frequency RX Second Local Oscillator LO The second LO synthesizer supplies the second IF local oscillator frequency to the receiver It produces 219 3 MHz that is divi...

Page 28: ... signal coming from the antenna is routed to the receiver section via the har monic filter which is comprised of L890 and C1012 The signal continues to flow through image filter equivalent quarter wave transformer C1015 and L817 to the Rx section toward limiter diode D500 The antenna switch attenuates the image DSP Baseband Filters Baseband Amplifiers LC Front Filter IL 2 5dB GCAP ...

Page 29: ...tain large gain and small Noise Figure 1 8dB The LNA has an enable pin pin 3 which is called VPD When this pin receives a supply of 1 8 V from DC switch Q504 the amplifier is enabled From the LNA the signal passes to second pre selector LC filter FL501 The IIP3 of the LNA is between 5dBm to 2 5dBm Second Pre selector The 2nd Pre selector FL501 attenuates the non linear products of the LNA and also...

Page 30: ...and C534 The differential signal is routed to the WPIC Word Phone IC at pin A4 and B4 WPIC receiver section The differential IF signal is amplified and transferred into the WPIC and mixed with 2nd LO signal The 2nd LO signal is routed to the WPIC at pin D1 and divid ed by 2 in to the quadrature generator block of the WPIC The baseband signal from the mixer passes via a Baseband filters and amplifi...

Page 31: ...ilter The interpolating filter increases the sampling rate to reduce in band quantization noise as well as to reduce image at multiples of the input da ta The interpolated samples are rounded to 8 bits and run through the 8 bit D A converters The D A converters take the digital I Q words and convert them into analog signals which are filtered and amplified The output is comprised of two separate l...

Page 32: ...Q808 and routed to I Q splitter U801 that converts the single input signal into two quadrature 90 degrees phase shift I and Q signals and then routs them to the LNODCT LO input pins 46 LOQ 45 LOQB 57 LOI 56 LOIB RF signal is sampled at the I Q splitter input and applied to the LNODCT LO feedback pin 24 MVCO LNODCT The LNODCT Low Noise Offset Direct Conversion Transmitter U803 is the heart of the t...

Page 33: ...path is fed to pin 2 of the isolator FL801 The isolator is placed at the PA output to decrease the influence of the antenna impedance var iation on the PA performance The reflected power returned from the antenna is absorbed in a 50 Ohms resistor inside the isolator The isolator also protects the Cartesian loop from sudden VSWR variations that could lead to loop instability Antenna Switch The RF s...

Page 34: ...itch the signal is routed to a one section of LC filter consist ing of the coil L890 and capacitors C1010 C1011 and C1012 The filter is re quired to attenuate the harmonics of the amplifying stages at the transmission path and the Local Oscillator leakage at the receiver path ...

Page 35: ...s Flash Memory The Flash Memory is dedicated to the application software This memory has a 16 bit wide data bus The Flash memory location has a 32M Bit of memory When addressing the Flash memory location the processor reads into its 16 bit wide data bus RF Section GCAP3 CE Accessory Conn Keypad Vibracall Power Supplies Radio Off ESSI UART OPT SEL ESSI SPIB Reset OPT B USB 8 RS232 USB_PWR BAT_FDBK ...

Page 36: ...dCap2 uses the SPI protocol Serial Peripheral Interface to communicate with RF IC s WPIC ODCT Synthesizer LMX GCAP3 IC and the display driv er The RF IC s are connected to SPIA module while GCAP3 and the display are connected via SPIB module The protocol is built upon 4 lines MOSI Tx MISO Rx CS CLK The Display Module based on the display driver i e Samsung KS0741 uses a serial interface Figure 9 i...

Page 37: ...ore ROM 4Kx32 RAM 512x32 PIG Peripheral I F Gask et GPReg MCU Timers PWM PIT Watchdog Baseband CODEC Ser ial P ort BBP Counter DSP Timer MCU Int Ctl DSP_IRQ STDB SRDB SFSB 2 SCKB 2 STDA SRD A SFSA 2 SCKA 2 ADRS 22 DATA 16 R W OE EB0 EB1 CS 6 MOD INT 6 INT6 DSRA STD A TRST INT7 DTRA SCLK SRD A TMS MOSIB MISOB QSCKB SPICSB 5 MOSIA MISOA QSCKA SPICSA 5 RST_OUT RST_IN COLUMN 5 ROW 5 COLUMN5 GPIO ROW5 ...

Page 38: ... linear regulator It is selectable using the Redcap SPI bus from 1 875V to 2 775V in 4 steps This regulator is active during POR and its initial out put value is 2 775V For this radio V3 is selected to 2 775V The regulator is sup plied by B and it is active whenever the radio is turned ON V3 is V3_2 775V which is the supply for the SRAM FLASH Redcap CE bus and Display V4 Linear Regulator V4 is a s...

Page 39: ...ial value is 2 775V For this radio VREF1 is programmed to 2 775V and is battery supplied VREF1 is VREF1_2 775V which is the supply for TCXO VREF2 Linear Regulator VREF1 is a programmable linear regulator It is programmed using the Redcap SPI bus from 1 875V to 2 775V in 4 steps This regulator is active during POR and its initial value is 2 775V For this radio VREF2 is programmed to 2 775V and is b...

Page 40: ...f fer OffsetVCO 10mA 7mA VCO Buf fer 2ndLOVCO 10mA 7mA 5V_RF TETRATX TETRATX WPICCP 5 Driver mixer 45 TETRARX WPIC 20 LNODC T 130 Mixer 2 5 AntSW 8 LO_DRV 40 TETRA_TX 202 TCXO 2 WPIC 30 Mixer 2 7 LNA 7 5 TETRA_RX 62 Dedicated 2 5 VBLIN 3 ODCTCP 1 PA Bias 1 REDCAP AVDD AddressBus DVDD Da ta Bus CVDD Bu s Control BVDD SI M EVDD AudioESSI HVDD SPIA B BBESSL L1T LVDD DSPAddress Bus Visibility MVDD DSP...

Page 41: ...ed on the main board The GCAP 3 perform the analog task and part of the digital task of the audio sys tem Tx Path Audio speech is fed either to the internal microphone or to a Phone Hands Free PHF microphone The signals reach the GCAP 3 IC In the GCAP 3 IC a fix gain amplifier A3 or A5 provides the signal amplification the multiplexer MUX se lects the active input and the programmable Gain Amplifi...

Page 42: ...e control and the mul tiplexer routes the audio to the active receive path When the internal speaker is active the audio is fed to A2 double ended audio power amplifier Otherwise the audio is fed to A1 output amplifier that drives the Internal Earpiece or the PHF earpiece Figure 11 Audio Path Block Diagram ...

Page 43: ... Main VCO and Main Synthesizer Second IF VCO and Dual Synthesizer RF section Offset VCO and Dual Synthesizer IF section Figure 12 Frequency Generating Section Block Diagram Offset VCO Second LO Dual Synthesizer U808 Main VCO Main Synthesizer 493 65 513 65 MHz to RX Mixe 113 65 MHz to Offset Mixer 493 65 513 65 MHz to TX Mixer Reference Oscillator TCXO Divider OSC_IN DOI F IF Section RF Section DOR...

Page 44: ...produces the LO signal The synthesizer functions are as follows To serve as the local oscillator for the mixer of the receiver It is used to down mix the RF frequency 109 65 MHz To serve as the LO for mixing the transmitter IF frequency generated by the Offset VCO into the transmit RF band The transmitter Offset VCO fre quency is 113 65 MHz This conversion is performed in the Tx Mixer To serve as ...

Page 45: ...X Dual Syn thesizer RF section The VCO produces a frequency of 219 3 MHz The internal phase detector is of the charged pump type The output signal of the of the VCO is routed via the phase detector at U808 pin 5 FINRF The output of the phase detector is present at U808 pin3 DORF and than via the loop filter R915 C903 C948 Offset VCO The Offset VCO is a discrete VCO that is controlled by the LMX Du...

Page 46: ...s the GCAP III which sends a signal to RCE through INT1 The five row lines are pulled high via five internal 22 Kohm resistors The five row lines and five column lines are fed to REDCAP2 I O pins Pressing any key also generates the keypad internal interrupt The REDCAP2 debounces the keys by reading them 25 milliseconds later The keypad decoding scheme works as follows 1 REDCAP2 sets rows to inputs...

Page 47: ...tended to support connection to accessories personal computers and test systems The bus connector has a total of 17 pins 9 of which have multi ple functions The bus has six basic modes of operation Normal also No Acces sory Connected USB Mode Analog Audio Mode Phone Powered USB Mode RS 232 Mode and RS 232 SSI Mode there is also two additional non standard modes DSC and FLASH which are used only fo...

Page 48: ... 232 4 wire SSI 0 1 X 0 PTT 0 0 X X SB9600 X X Pin No Signal Name Short Form Power Default States USB Dumb RS232 SSI RS232 8 wire 1 Power Ground GND GND GND GND GND GND 2 Battery Feedback BATT_FDBK BATT_ FDBK BATT_ FDBK BATT_ FDBK BATT_ FDBK BATT_ FDBK 3 External Power EXTB EXTB EXTB EXTB EXTB EXTB 4 USB TXD D D TXD TXD TXD 5 USB RXD D D RXD RXD RXD 6 USB Power Ignition RTS USB_PWR USB_P WR IGN RT...

Page 49: ...NLink DNLink OPT2 OPT2 OPT2 15 Audio Out On Off AUDIO_OUT AUDIO _OUT AUDIO _OUT AUDIO _OUT AUDIO _OUT AUDIO _OUT 16 Audio In AUDIO_IN AUDIO _IN AUDIO _IN AUDIO _IN AUDIO _IN AUDIO _IN 17 Audio Ground AUDIO_GND AUDIO _GND AUDIO _GND AUDIO _GND AUDIO _GND AUDIO _GND Pin No Signal Name Short Form Power Default States USB Dumb RS232 SSI RS232 8 wire ...

Page 50: ...Theory of Operation 2 32 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 51: ...CPS has no capability to tune the radio Tuning the radio can only be performed at the factory or at the appropriate Motorola Repair Centre Components replacement can affect the radio tuning and must only be performed by the appropriate Motorola Repair Centre The radio is tuned and tested at the factory The results of the tuning procedures are stored in a special EEPROM This information includes tu...

Page 52: ...ts for the DMO mode are same like the TMO mode If a problem occurs in the DMO mode then refer to the respective flowchart given under TMO mode When a problem is found and fixed according to the TMO troublshooting charts then it is au tomatically fixed in the DMO However if the problem still remains in the DMO mode and not in the TMO mode then the software should be fixed TMO Troubleshooting Charts...

Page 53: ...Use the GoNoGo PATS test for Bootload Did the unit pass the Bootload test A Replace the Main Board Is the Power Supply current OK Check for a defective REDCAP2 U401 Is the 32kHz clock From GCAP3 Tp600 OK Is the 8 4kHz clock From WPIC correct 2 Refer to the RF WPIC flowchart 2 Check for a defective REDCAP2 U401 3 Check assembly of the RC filters U105 U106 U107 No No No No No No Yes Yes Yes Yes Yes ...

Page 54: ...in connector Use the GoNoGo P AT S test IO_Loop 40 pin connector Test the backlight by turning it on Replace the Keypad and LCD Boards No No Y es Y es Note This test will be perform by TetraCom SW application Command BackL EN DIS Did the unit pass the Flash_up test The Flash U403 is defective Use the GoNoGo P AT S test for Flash_up U403 A B No Y es ...

Page 55: ... Digital Analysis Test Cont Does text appear on LCD Is J2 OK Contacts via 22 pin Flex OK Visually check J2 connector on LCD board Check 22 pin Flex Replace LCD Replace Flex Replace J2 on LCD board Check the LCD C B No No Yes Yes Yes No ...

Page 56: ...11 when VIBR EN TetraCom command has been entered Check 1 875V on D001 and 0 4V on Q002 pin 1 4 Replace the Vibrator Check for defective Q002 or D001 The Main Board successfully passed all tests Refer to the DC distribution V2_2 775V Test flowchart Test the vibrator No No Yes Yes Yes Note This test will be perform by TetraCom SW application Command VIBR EN DIS C ...

Page 57: ...distribution voltages with their correct values and ap propriate location to check the voltages Fused_B 3 6 Vdc F600 Filt_B 3 6 Vdc C640 V1_1 875V 1 875 Vdc C611 V2_2 775V 2 775 Vdc C610 C613 C657 V3_2 775V 2 775 Vdc C609 C658 C659 VREF1_2 775V 2 775 Vdc C628 VREF2_2 775V 2 775 Vdc C612 C660 C661 V4_2 775V 2 775 Vdc C625 C644 C647 VSIM1 3 Vdc C653 5V_RF 5 Vdc C615 C651 PWM2_1 8V 1 8 Vdc C624 C648 ...

Page 58: ...0 Check junction of F600 and VR601 for 0 ground W Check traces to Fused_B for oepens Check Q600 pin 4 circuitry for shorts Repair as necessary Replace E600 Check junction of F600 and Vr601 pin 2 for 3 6Vdc Fused_B Check Q600 pin 3 for 3 6 Vdc Check all Fused_B circuit components Repair as necessary Check C640 for 3 6 Vdc Filt_B Check battery contact P1 4 for 3 6 Vdc A No No No No Yes Yes Yes No Ye...

Page 59: ...est Cont Is the voltage OK Are frequency and amplitude OK Is Reset high Replace U600 GCAP III Replace U600 GCAP III Check TP600 for 32 kHz clock with 2 775V amplitude Check TP603 for the Reset high Check Filt_B at C640 or C652 for 3 6 Vdc B A No No Yes Yes Yes No ...

Page 60: ...leshooting 3 10 68P02963C70 O DC Distribution V2_2 775V Test Cont Is the voltage OK Replace U600 GCAP III Check C610 C613 C657 for 2 775 Vdc V2_2 775V Refer to other DC Distribution Test Flowcharts B No Yes ...

Page 61: ... 3V Are voltages OK Is the voltage OK TetraCom command SWB Dis SWB current limit test OK TetraCom command SWB EN Check R119 Refer to the DC distribution V2 2 775 V Test flowchart Check If U104 pin 5 is shorted to ground Repair as necessary Check U104 pin 3 Voltages 2 0V for SWB EN 0 4V for SWB Dis SPICS4A Redcap Check U104 Replace if necessary Check U104 pin 1 for 3 6 Vdc Filt_B Check U104 pin 6 f...

Page 62: ... Is the voltage OK Is the voltage OK Check traces to the RX section Freq Gen section and TX section Refer to the DC distribution V2 2 775 V Test flowchart Replace U600 GCAP III Replace E200 Check Q602 pin 1 for 3 0 Vdc reference voltage V4DRV Check Q602 replace if required Check Q602 pin 3 for 3 6 Vdc Filt_B Check Q602 pin 2 for 2 775 Vdc No No No No Yes Yes Yes Yes ...

Page 63: ... symptoms no V3_2 775V no PWM2_1 8V Is the voltage OK Is the voltage OK Check C624 for 1 88 Vdc PWM2_1 8V Check E401 ferrite beads by REDCAP2 for opens Check C609 C658 C659 for 2 7 Vdc V3_2 775 V Yes No No Yes Refer to the DC distribution V2_2 775 V Test flowchart Refer to the DC distribution V2_2 775 V Test flowchart ...

Page 64: ...rt Replace L600 Replace U600 GCAP III Disconnect E201 Check 3 6 Vdc L600 C601 for Check C623 for 5 6 Vdc Check C615 C651 for 5 Vdc No No No No Yes Yes Yes Yes Refer to the DC distribution V2_2 775 V Test flowchart Check VSIMI C652 for 3 0 Vdc Is the voltage OK Check trace till C24 C406 C403 Yes Check U601 pin 3 for 2 775 Vdc No Is the voltage OK Refer to the DC distribution V2_2 775 V Test flowcha...

Page 65: ...s Check if there are shorts on the board check if RF P A U809 is shorted to the ground check voltage regulator VR601 R640 current U104 VR102 elements on FLT_B supply lines Replace parts if faulty Repeat the S t andby Current test Also see GCAP section switch Is standby current below minimum current limit Check Radio Fuse F600 Switch Q600 bead E600 CR601 Replace damaged part Repeat the S t andby Cu...

Page 66: ...ce damaged parts Perform the Open loop power test again OK Are voltages 2 775V_RF 5V_RF RAW_B _RF and 2 5V_TX supplied to the Transmitter components Check the battery regulators Q800 Q805 Q806 Q807 Q911 elements on 2 5V_TX lines Replace if faulty Perform the Open loop power test again Is there 2 5Vdc of ANT_EN signal on Q806 pin or C830 during Tx slot Check E810 Perform REDCAP2 test Repeat Open Lo...

Page 67: ...sing a easure the RF level at pin 6 of Mixer U800 power high impedance probe m Is the power 6 5 dBm No Yes Check the power at pin 1 of U800 mixer Is the signal at U800 pin 1 stable and its power 1 dBm Check L809 C844 Perform Offset VCO test Perform the Open loop power test again Check the power at pin 3 of U800 mixer Is the signal at U800 pin 3 stable and its power 0 5 dBm Replace the mixer U800 P...

Page 68: ...and output Is the difference 3 5 dB Check I Q splitter U801 C851 C849 Replace faulty parts Perform the Open loop power test again Measure the ASW level on pin 28 of LNODCT U803 during Tx slot by using scope Does the ASW level go low about 0V dc during Tx slot Replace LNODCT U803 Perform the Open loop power test again Replace LNODCT U803 Perform the Open loop power test again Perform WPIC Test Perf...

Page 69: ...ng a scope o Is data voltage 0 4 0 8Vp p observed during Tx slot Replace WPIC U503 If the Open Loop Power problem exists replace LNODCT U803 Repeat the Open Loop power test TetraCom Commands WPIC 1 9 Read the register value Measure 1 2 775_WPIC dc voltage on C572 C516 C519 C555 C552 C549 C573 C547 C535 C502 C542 2 V3_2 775V on C515 Are voltages 2 6 2 9Vdc OK Perform the GCAP test If the problem st...

Page 70: ... R815 R818 R825 R826 C817 Replace if faulty and repeat the Close Loop test Does the close loop power problem still exists Measure the LO power on pin 24 MVCO of the LNODCT U803 800 400 mVp p single ended swing into a 50Ohm load Is the LO power OK Replace LNODCT perform Open Loop Power test and Close Loop Power test Check R838 C814 replace if faulty repeat Close Loop Power test If the problem still...

Page 71: ...s TX current 2 2A average TX current 1 Measure RF PA bias voltages on pins 8 and 16 of U809 2 Measure supply votage on pin 12 of U809 Are supply or and bias voltages high Repeat Open loop power test and Close loop power test If the problem still exists replace U809 Repeat Transmitter current consumption test 1 Check power supplies 2 Repeat tuning of the radio Repeat Transmitter current consumption...

Page 72: ...K Wa s that the problem Check 2 775V suppl y t o LN A Mixer and check control lones Q504 Q500 Rep air if necessary Check Front Gain again Check Main Synth Power level 5dBm and frequency F F 109 65MHz Rep air if necessary See Synth Troubleshooting main rx TetraCom Commands TD M Mode Freq RX 390 0125 Mode RXTDM Mode RSSI LIMITER ON BER Rout WPIC BaseBand signal to test point s WPI C 2 0 7 2 NOW Acti...

Page 73: ...e freq 529 65MHz Test the VCO control voltage at R917 The typical range is 0 5 to 4 5 V Check for opens shorts or missing components in the buffer circuits Also check for 2 3 Vdc on L907 Is the control voltage railed to 0 5V or 4 5V Possible prescaler feedback problem 1 check solderin of C933 C915 2 Probe to determine if LO is reaching the prescaler input NO YES YES NO YES Note This is the abnorma...

Page 74: ...ng 2 4Vdc on R934 and on R923 Confirm that the resonator tab is prperly soldered Confirm that the Varicap is in the right direction Unit testing is complete Yes Check Loop filter Check for opens or shorts NO Whether the problem found and fixed Unit testing is complete Yes NO Check buffer Check for opens or shorts Whether the problem found and fixed Unit testing is complete NO Yes WPIC Problem ...

Page 75: ...r the LMX 1 Check for 5V_RF on C954 or on Pin 22 of the LMX 2 Check 2 775V_RF on Pin 23 and Pin 24 of the LMX Yes Check DC Block No Perform VCO_ONLY TEST 1 connect an external 0 5 to 4 5V power supply to R9016 2 Measure the RF freq at C959 3 Adjust the external supply voltage until the frequency is219 3MHz The VCO is working properly the problem is with the LMX Replace the LMX Yes Check R915 C903 ...

Page 76: ...Troubleshooting 3 26 68P02963C70 O Offset VCO Test ...

Page 77: ...commands to the external mic to external out loopback Check R110 C103 continuity to connec tor Check R108 C104 continuity to connec tor No trouble found Connect a scope or DVM to the following points and measure ac levels in Vrms Start AUDIO_LOOPBACK 1 Is voltage at C103 44mVRMS Yes No Yes No Tetracom Routine MIC VA MICGA 0 DSP_LOOP ON DSP_VOL 0 Vol 0 SPKR VA Is voltage at C104 66mVRMS ...

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Page 79: ...2 Run the Customer Programming Software CPS on your computer Codeplug Programming 1 On the menu bar click File Open 2 Browse for the required Codeplug file and open the file 3 The CodePlug window appears on the screen 4 Click the Toolbar Tools icon and select Write Entire Codeplug 5 Press the Yes icon ...

Page 80: ...essful appear on the computer screen 6 Press the OK button Application Programming 1 On the menu bar click Tools Write Software NOTE The CPS is trying to reads data from the radio A Please Wait message is displayed on the computer screen After the process ends a Operation Results window appears on the computer screen 2 Press the Write button Diag SW Ver 01 01 HW ID Code XXX Flash TE28F320C3BA Comm...

Page 81: ... writing status The following display is shown on the radio screen After a successful writing the message The Operation Was Successful appear on the computer screen 3 Press the Ok button 4 Click the toolbar R Reset icon Diag SW Ver 01 01 HW ID Code XXX Flash TE28F320C3BA Command WRITE REQ 00 00 00 Done Elapsed Time Indication Appears at the end of the process ...

Page 82: ...Programming the Radio 4 4 68P02963C70 O This page left blank intentionally ...

Page 83: ...ed when cleaning the external and internal surfaces of the radio External surfaces should be cleaned whenever a periodic visual inspection reveals the presence of smudges compound or grime Internal surfaces circuit boards and components should be cleaned only when the radio is disassembled for servicing or repair The only recommended agent for cleaning external radio surfaces is a 0 5 solution one...

Page 84: ...ed bench surface and the technician must also be grounded before handling the devices This is done most effectively by having the technician wear a conductive wrist strap in series with a 100kW resistor to ground Do not wear nylon clothing while handling CMOS circuits Do not insert or remove CMOS devices with power applied Check all power supplies to be used for testing CMOS devices and be certain...

Page 85: ...ice bench This assembly contains a wrist strap two ground cords a table mat and a floor mat Wear a conductive wrist strap in series with a 1Mg ohm resistor to ground Do not wear nylon clothing when handling any printed circuit board Prior to touching any printed circuit board touch an electrical ground to remove any static charge that might have accumulated To store or transport a circuit board Pl...

Page 86: ...unit See Figure 13 Unscrew the antenna counter clockwise until it is detached from the handset To install the antenna in the unit Screw the antenna clockwise to the handset Figure 13 Antenna Removal and Installation Removing and Installing Battery Door and Battery Recommended tools no tools are required To remove the battery door from the unit See Figure 14 1 Place the unit facing down on the work...

Page 87: ...rds the bottom of the unit and lift it up from the unit Figure 14 Battery Door Removal To remove the battery See Figure 15 1 Press the battery fastening bridge toward the upper side of the unit 2 Simultaneously using other hand release the battery from its chamber Figure 15 Battery Removal ...

Page 88: ...k Housing Recommended tools T 8 Torx bit Torx driver mini flat tip screwdriver Removing the back housing from the unit See Figure 16 1 Remove the antenna refer to Removing and Installing the Antenna 2 Remove the battery door and the battery refer to Removing and Installing Battery Door and Battery 3 Place the unit facing down on the work area 4 Using the screwdriver remove the oval label at the to...

Page 89: ... Screw the back housing screws in the following order Upper left and right screws center left and right screws and lower left and right screws 5 Glue a new oval label over the holes of the two upper screws and a new tamper evident label only available to Motorola Services Centres on the holes of the two center screws 6 Install the battery and the battery door refer to Removing and Installing Batte...

Page 90: ...g and Installing the Back Housing 2 Turn the back housing up side down and using the screwdriver remove the vibrator from its chamber inside the back housing Installing the vibrator 1 Carefully push the vibrator into its chamber in the back housing 2 Install the back housing refer to Removing and Installing the Back Housing Figure 17 Vibrator Removal and Installation Back Housing Vibrator ...

Page 91: ... rubber seal from the I O connector verify that the seal is not dam aged retain the seal for reinstallation Installing the main board 1 Gently install the rubber seal over the I O connector 2 Position the main board in location Verify that the two guide pins are inserted into the holes in the main board 3 Gently push the main board down and verify that the Board to Board connector is properly conn...

Page 92: ...igure 18 4 Using the screwdriver remove the chassis assembly including the main board keypad board and LCD board out from the unit 5 Place the chassis assembly with the keypad and LCD boards facing down on the work area 6 Remove the main board from the chassis assembly 7 Insert the screwdriver into one of the slots in the upper side of the chassis assembly above the LCD board and gently push the b...

Page 93: ...ted inside the hole in the LCD board and that the snag at the top of the chassis is inserted into the slot of the board 6 Install the keypad board on the chassis assembly 7 Verify that the keypad board is sited parallel to the chassis assembly 8 Verify that the main board is fully installed with the rubber seal 9 Turn the chassis assembly up side down 10 Install the main board on the chassis assem...

Page 94: ...he LCD board refer to Removing and Installing the Keypad and LCD Boards NOTE Do not touch the LCD module assembly in the active viewing area fingerprints on this surface cannot be easily removed 2 Using your hand gently disengage the right two snaps and rotate the LCD module as sembly to the left until it disengaged from the LCD board Chassis Assembly LCD Board Release Slot LCD Board Keypad Board ...

Page 95: ...ide pins are aligned with the holes in the LCD board 2 Gently push the module down right snaps first and then left snaps 3 Verify that the snaps are located correctly inside the board slots 4 Remove the protective film from the LCD glass Verify that no damage exists on the LCD glass 5 Install the LCD board refer to Removing and Installing the Keypad and LCD Boards Figure 20 LCD Module Removal and ...

Page 96: ...he unit steps 1 through 3 2 Remove the keypad from the unit Installing the keypad 1 Install the keypad inside the front housing 2 Verify that all the keys are properly inserted into their dedicated holes 3 Install the chassis assembly refer to Installing the keypad and LCD boards steps 1 and 2 Figure 21 Keypad Removal and Installation Front Housing Chassis Assembly Including Main Board And LCD and...

Page 97: ...p screwdriver Removing the earphone See Figure 22 1 Remove the Acoustic Safety Rubber 2 Remove the chassis assembly refer to Removing the keypad and LCD boards from the unit steps 1 through 3 3 Using the screwdriver remove the earphone from the unit If the earphone was de tached from its bottom plate remove the plate as well Installing the earphone 1 Install the Acoustic Safety Rubber 2 Using the ...

Page 98: ...8P02963C70 O 5 Install the chassis assembly refer to Installing the keypad and LCD boards steps 1 and 2 Figure 22 Microphone and Earphone Removal and Installation Microphone Earphone Acoustic Safety Rubber Front Housing ...

Page 99: ...86630T01 3 Chassis Assembly See Figure 23 4 Back Housing Assembly Black Back Housing Assembly Blue 0186396T04 0186396T05 5 Antenna 380 400 M Hz R1 8586381J02 6 Screw Self Forming 0304637P17 7 Label Back 5486278T01 8 Standard Battery Door Assembly Black Standard Battery Door Assembly Blue Extended Battery Door Assembly Black Extended Battery Door Assembly Blue 0186613T01 0186613T02 0186239T01 01862...

Page 100: ...Maintenance 5 18 68P02963C70 O Figure 23 Exploded View 1 2 3 4 5 7 6 X6 8 ...

Page 101: ...Maintenance 68P02963C70 O 5 19 Figure 24 Exploded View of Chassis Assembly 9 12 13 10 11 14 ...

Page 102: ...Maintenance 5 20 68P02963C70 O ...

Page 103: ...MTH500 Detailed Service Manual COMPONENT BOARD LAYOUTS 68P02963C70 O 6 1 Component Board Layouts ...

Page 104: ...MTH500 Detailed Service Manual COMPONENT BOARD LAYOUTS 6 2 68P02963C70 O This page intentionally left blank ...

Page 105: ...87639U01_P1 OL 79B02964C13 O SHOWN FROM SIDE 1 O1 79B02964C11 O P1 C1 C2 C3 C4 C7 C8 C9 C10 C11 C12 E1 J1 P2 R1 R2 R3 R4 R5 R6 TP1 TP2 TP3 TP4 U1 U2 U3 U4 U5 VR1 VR2 VR3 VR4 1 1 1 1 1 1 1 1 1 1 1 1 O1 79B02964C12 O SHOWN FROM SIDE 2 OL 79B02964C14 O 8487639U01_P1 D1 D2 D 3 D5 D6 D7 D8 D 9 D10 D13 D14 D17 MK1 S1 ...

Page 106: ...N9797A Side 1 and 2 O4 79B02962C48 O SHOWN FROM SIDE 1 O1 79B02962C46 O 8486097U01_P1 P1 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 E1 M4 M5 S2 S3 S4 S5 TP1 TP2 TP3 TP4 TP5 T P 6 TP7 8486097U01_P1 D 1 1 D 1 2 O1 79B02962C47 O SHOWN FROM SIDE 2 O4 79B02962C49 O J2 ...

Page 107: ...C909 C910 C915 C916 C919 C920 C921 C922 C927 C929 C930 C931 C932 C933 C937 C938 C939 C940 C942 C946 C948 C951 C953 C954 C955 C957 C958 C959 C960 C961 C962 C966 C967 C968 C970 C971 C980 C1004 C1009 C1014 C1016 C1020 C1022 C1023 C1024 C1025 C1026 C1027 C1028 C1029 C1030 C1031 C1032 C1033 C1045 C1050 CR600 CR601 D001 D101 D601 D800 D902 E008 E009 E010 E101 E400 E600 E601 E602 E603 E604 E801 E803 E808...

Page 108: ...13 C615 C623 C624 C625 C626 C628 C641 C642 C644 C647 C648 C649 C663 C800 C808 C811 C814 C819 C821 C824 C827 C828 C829 C830 C832 C833 C835 C838 C843 C844 C845 C846 C847 C848 C849 C850 C851 C852 C853 C854 C855 C856 C857 C859 C866 C867 C891 C894 C984 C1010 C1011 C1012 C1015 C1021 C1046 C1048 C1049 CR602 CR603 D500 D801 E001 E007 E102 E201 E203 E401 E806 FL500 FL501 FL502 FL800 L500 L501 L504 L505 L50...

Page 109: ...MTH500 Detailed Service Manual Schematic Diagrams and Parts Lists 68P02963C70 O 6 7 Schematic Diagrams and Parts Lists ...

Page 110: ...R2 8 R3 7 R4 FLTR_EZAST33A U3 2 C1 3 C2 4 C3 C4 5 P2 22 22 P2 9 7 P2 19 19 P2 1 1 P2 7 2 P2 3 3 P2 4 4 P2 2 5 C4 1 GND1 6 GND2 10 R1 9 R2 8 R3 7 R4 FLTR_EZAST33A U4 2 C1 3 C2 4 C3 VALUE C9 41 P1 42 42 38 P1 41 P1 37 37 P1 38 35 P1 36 36 P2 5 5 P1 35 10 P2 8 8 P2 11 11 P2 10 18 P2 17 17 P2 21 21 P2 18 P2 20 20 VR4 VR3 VR1 VR2 0 R6 R5 0 0 R4 VALUE C4 VALUE C3 C2 VALUE C1 33 u 5 P1 4 4 P1 6 6 P1 5 P1...

Page 111: ...9 9186929J02 Part not placed GENERAL Ref Part Description C10 2113743P01 Part not placed Ref Part Description U1 9186133U02 FLTR_EZAST3 3A C11 2113928A01 1µF U2 9185759B01 EZAST21 C12 2113741F49 10nF MK1 5086346J02 Part not placed U3 5 9186133U02 FLTR_EZAST3 3A DIODES RESISTOR Ref Part Description Ref Part Description ZENER DIODES R1 2 0662057C43 res_47 Ohm Ref Part Description LED R3 0662057A21 r...

Page 112: ...4 4 P1 1 1 P1 22 22 P1 16 16 P1 21 21 P1 20 20 18 P1 19 19 M4 P1 18 4A J2 5A 5A J2 7A 7A J2 4A 2A J2 1A 1A J2 6A 6A J2 2A 8A J2 3A 3A J2 9A 9A J2 8A BACKLIGHT BACKLIGHT BACKLIGHT C12 180 p 180 p C11 180 p C10 C9 180 p 180 p C8 C7 180 p P1 15 15 C6 180 p 12 P1 13 13 5 P1 6 6 P1 12 3 P1 2 2 P1 5 8 P1 7 7 P1 3 P1 9 9 P1 8 P1 10 10 P1 17 17 M5 P1 11 11 J2 5B C16 180 p J2 4B J2 9B J2 7B TP7 CLIP CLIP 1...

Page 113: ...Description C1 17 2113743p01 Part not placed C18 2113928A01 1µF GENERAL C19 2113741F49 10nF Ref Part Description INTEGRATED CIRCUIT AUDIO M4 5 3986295T01 Contact Ref Part Description S2 5 4086218A02 Switch TP1 7 4209080u02 Part not placed DIODES RESISTOR Ref Part Description Ref Part Description LED Ref Part Description D11 4886955j02 LED_grn D12 4886955j01 LED_red CONNECTOR and INDUCTORS Ref Part...

Page 114: ...P TETRA_MAIN_VCO_ON V3_2 775 V4_2 775V_RF VREF1_2 775V WPIC_OSC_EN WPIC_SRD WPIC_SSI_FSYNCH WPIC_STD WPIC_TXCLK WPIC_TXE DIGITAL WPIC_STD WPIC_TXCLK WPIC_TXE 16 8_OR13_MHz_CLK 5V_RF ANT_EN LO_Driver_EN LO_Mixer_EN PA_BIAS PA_TEMP RAW_B _RF RESET RF_TEMP RX_ACQ SPIA_CLK SPIA_CS0_WPIC RF_TEMP RX_ACQ SPIA_CLK SPIA_CS0_WPIC SPIA_CS2_ODCT SPIA_MISO SPIA_MOSI SYNT_CS_ TCXO_WARP TETRA_MAIN_VCO_ON V3_2 77...

Page 115: ...TP802 100 n 100 n C204 C201 100 n 270 p C200 C203 270 p RX_2nd_LO SF_OUT SPIA_CLK SPIA_CS3_SYNT SPIA_MOSI TETRA_2nd_LO_Enable TETRA_MAIN_VCO_ON TETRA_RX_LO TETRA_TX_LO offset_vco offset_vco_En TSLOT TSLOTB TXCLK TXE V3 VCNTO VREF1_2 775V WPIC_CE WPIC_RESET 2 775V_RF 5V_RF ADAPT CPGITR Ded_Synt_Ref GND PRSCIN PRSCIN RF_TEMP RX_2nd_LO RX_ACQ RX_TETRA SF_OUT SPI_CLK SPI_IN SRD SSI_FSYNCH STD TCLK TCL...

Page 116: ...4 GND C882 4 7n GND C881 4 7n C861 18 0n 18 R822 R808 300 GND GND 300 R819 R800 18 GND R838 150 R833 GND R834 51 R836 R814 C849 2 4p C851 3 p 39n L807 SLC_045P IN ISOL OUT_0 OUT_90 GND U801 GND C877 2 775V_ODCT GND GND C878 C871 GND GND GND GND 2 775V_ODCT 100 n C869 100 n C876 100 n C875 100 n L811 8 2n GND 2 775V_RF L813 22 n GND 15 p C843 12 p C845 C854 1 n GND 1 n 510 C853 R807 GND 8 2p C847 2...

Page 117: ...15 NC3 3 NC7 7 NC9 9 Q1C 4 RF2175 U809 GND1 5 17 GND17 R899 100 K GND GND E810 C1021 270 p GND BLM10B601SDP SH800 SHIELD 1 GND C1015 C1014 GND 5 6p GND GND 270 p C1011 3 9p C1010 13 85n C1012 GND L890 5V_RF GND C1004 100 n C899 270 p Q807 GND GND GND GND 100 u C703 C702 C701 100 u 4 COUP 1 IN OHM_50 3 2 OUT 100 u GND COUP_0902BW U806 C897 33 p E808 E809 BLM11B601S GND BLM11B601S GND C832 51 R826 G...

Page 118: ...00 7 OUT_GND C574 270 p 1 GND1 5 GND2 4 GND3 8 GND4 2 IN 3 IN_GND 6 OUT FL500 E501 BLM10B601SDP 47K RT500 E500 BLM10B601SDP 5V_RF V3 C514 270 p 2 775V_RF 2 775V_RF 2 775V_RF Q500 6 GND1 GND2 2 8 IN 4 OUT FL501 C576 C550 1 n L500 L518 33n 6 8p C521 C532 R500 1 K C505 1n C553 100 0n C507 GND1 2 GND2 5 4 RF0UT 1 RFIN VPD 3 1 n RF2361 U500 56 n L508 12 n L513 C528 C522 8 2p 68 n L505 100 p 1 n C551 VD...

Page 119: ...GND L7 LOGICVCC K7 D1 LOIN G2 MAINGND MAINVCC H3 C6 DCLQCIN A6 DCLQCP DETSW J3 DMCS L10 DMXGND B2 DMXGNDDIG C2 DMXVCC C1 D2 DMXVCCDIG K8 CEX CLKOUT F10 C9 CLKSEL L3 CPGITR L2 CPGT CREF A7 DCLICIN C5 DCLICP B6 ADAPT L1 AGC F3 AGCDRIVE G3 AGCGND E2 AGCVCC F1 ASW J5 BBFGND A5 BBFVCC C4 9 9 U503 WPIC27C02 1 2 10uF C561 100 n C555 5 4 3 2 6 7 2 775V_WPIC 2 775V_WPIC 2 775V_WPIC 2 775V_WPIC 2 775V_WPIC ...

Page 120: ...07 GND GND GND GND GND GND GND GND GND C938 1 5K R933 C939 4 3p GND 100 p C909 270 R921 Q903 GND R924 R932 68 R914 1 3K GND 3 6K 100 p C906 51 R937 C910 GND GND 100 p R944 22 R927 C933 22 5 6p R918 180 R917 75 100n C958 GND R913 C957 4 7n R911 2 2K 22 0n C961 C929 5 1p L903 390n 390n L913 L912 390n 5 1p C931 15 p C927 C930 100p 100p C905 C904 C901 270 p 100 n R901 47 K R925 R936 100 R923 68 R934 1...

Page 121: ...F 3 DORF 17 FINIF 18 FINIF2 6 FINRF 5 FINRF1 11 FOLD 4 GND LMX2332LSLB U808 12 CLK 14 C968 GND C967 1 n GND SF_OUT GND 270 p Q804 GND L806 68 n 39 p C890 R803 2 2K GND D800 68 p C887 0 01UF C879 GND 1 n GND GND C883 GND C873 100 n 68 n L816 GND GND 22 p C842 33 n L801 GND GND GND C840 C886 33 p C837 68 p C841 68 p C839 4 7K R801 2 2K R802 510 R835 Q801 100 R810 GND BLM10B601SDP E901 GND GND 100 p ...

Page 122: ...0 p C009 C007 C008 180 p 180 p C006 180 p C005 180 p 180 p C001 C004 180 p C020 180 p C019 V3_2 775V P15 1 1 P15 8 8 P15 2 2 12 P15 7 7 P15 13 13 P15 12 34 P15 17 17 P15 38 38 P15 34 6 P15 39 39 21 P15 6 18 P15 20 20 P15 21 P15 10 10 P15 18 P15 4 4 P15 36 36 P15 35 35 P15 19 19 40 P15 16 16 P15 37 37 P15 40 3 P15 5 5 P15 22 22 P15 3 15 P15 14 14 P15 33 33 P15 15 P15 32 32 P15 28 28 P15 30 30 P15 2...

Page 123: ...ND GND_EDGE_1 TP002 1 GND GND_EDGE_2 TP003 1 GND SIM1 Between SIM s SH005 1 1 REDCAP2 SH004 1 Switching Reg SH001 1 GCAP3 SH003 TP001 VTS_2 3V R012 R001 R004 M002 M005 VTS_2 3V VTS_2 3V VREF1_2 775V TP902 1 VR003 7 5V C037 180p C038 33p C036 33p C035 33p BATT_FDBK BATT_FDBK_AD CE_ON_OFF DCD_MUTE_FS EXT_B HKSW_CTS OPT1 OPT2 RAW_B RxD_USB SWB _EN TxD_USB USB_PWR_RTS_IGN USB_VCC_SW VA_EN R009 ASEL0_D...

Page 124: ... REF1_VCCA J10 REF1_VCCB A9 PA_ON1 P13 PA_SENSE PGA_INL F4 F3 PGA_INL2 E4 PGA_INR E1 PGA_INR2 J2 PGM0 J4 PGM1 K1 N6 MOBPORTB N3 MOD C12 MUX_CTL D13 NC J5 ON D6 ON2 K4 ON3 N13 PA_DRV P14 MAIN_FET C2 MB_CAP1 MB_CAP2 D1 J12 MFET_LOW A2 MICINN D2 MIC_BIAS1 MIC_BIAS2 E2 B2 MIC_OUT P10 LS1_OUT P11 M10 LS2_IN N10 LS2_OUT LS3_RX P12 N11 LS3_TX P9 LX1 P8 LX2 P6 N9 FB1 L9 FB2 D5 FSYNC A5 INTERRUPT K7 ISENSE...

Page 125: ...tching regulator 1 BUCK to REDCAP core V2_2 775V V3_2 775V 5V_RF RAW_B FILT_B PWM2_5 6V PWM1_1 8V RF TCXO VREF1_2 775V SW_B Battery Voltage for CE bus with the Current limit function C647 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 180 p C619 E604 BLM11B601S 100 n BLM11B601S E603 4 7u C629 R648 C659 2 7K 4 7u 4 7u C658 4 7u C609 C657 V3_2 775V C613 4 7u V2_2 77...

Page 126: ...15 M5 XYD2 P8 XYD3 R8 XYD4 T8 XYD5 A1 XYA7 C2 C3 XYA8 D1 XYA9 R7 XYD0 T7 XYD1 XYD10 M10 XYD11 M11 XYD12 XYA12 XYA13 E1 E3 XYA14 XYA15 E4 XYA2 B3 XYA3 B2 XYA4 A3 XYA5 A2 XYA6 B7 H14 TRST G15 TXA_TDO TXB K11 XYA0 A4 XYA1 D4 D2 XYA10 D3 XYA11 E2 E8 D5 TOUT2 C6 TOUT3 B6 TOUT4 A6 TOUT5 D6 TOUT6 D7 TOUT7 TOUT8 C7 TOUT9 TMS A5 TOUT0 C5 TOUT1 TOUT10 B8 TOUT11 A8 TOUT12 D8 TOUT13 E6 TOUT14 E7 TOUT15 B12 D1...

Page 127: ...SIM1 PWM2_1 8V_FLTR V3_2 775V_FLTR 10 u C416 E401 V3_2 775V PWM2_1 8V E400 1 u C420 C414 180p 1 u C421 180p C413 QVCC2 L4 QVCC3 L13 QVCC4 M7 QVCCH1 F9 J11 QVCCH2 QVCCH3 M8 QVCCH4 K3 NC7 H8 NC8 H9 NC9 H10 QGND1 F10 QGND2 L1 QGND3 L7 QGND4 L16 QVCC1 F8 K10 NC17 L6 NC18 L11 NC19 NC2 G7 NC3 G8 NC4 G9 NC5 G10 NC6 H7 NC1 F11 NC10 J7 NC11 J8 NC12 J9 NC13 J10 K7 NC14 K8 NC15 K9 NC16 C8 HVDD2 KGND E14 KVDD...

Page 128: ...9 R2 8 R3 7 R4 FLTR_EZAST33A U106 2 C1 3 C2 4 C3 5 C4 1 GND1 6 GND2 10 R1 FLTR_EZAST33A U107 R119 22K R118 1K MC33645 U100 3 2 4 1 5 C120 100n Q100 V3_2 775V V3_2 775V SI3443DV 47 K R113 47 K R109 16 J10 17 17 J10 15 15 J10 16 13 J10 14 14 J10 12 12 J10 13 10 J10 11 11 J10 9 9 J10 10 J10 7 7 J10 8 8 J10 6 6 J10 4 4 J10 5 5 J10 3 3 J10 1 1 J10 2 2 180 p C119 180 p C116 180 p C117 180 p C118 C115 C1...

Page 129: ...03 270pF C014 2113743p01 180pF C427 429 2113743M24 100nF C547 2113928n01 100nF C628 2113928P04 1µF C827 830 2113743L03 270pF C015 2113743p01 180pF C430 2113928n01 100nF C549 2113928n01 100nF C629 2113928C04 4 7µF C831 2113743N69 1 8pF C016 2113743p01 180pF C500 2113743L03 270pF C550 552 2113743l17 1nF C630 635 2113928P04 1µF C832 2113743N46 68pF C017 2113743p01 180pF C501 502 2113928n01 100nF C553...

Page 130: ...77 878 2113743cL37 6800pF C940 2113740L01 2pF C1030 2113740F24 7 5pF Ref Part Description E806 2409134J04 blm11b601s C879 2113741F49 10nF C942 2113740F25 8 2pF C1031 1032 2113743L03 270pF CR600 603 4813833a19 mbrm120L E807 7686949j02 blm10b601sdp C880 2113741f45 6 8nf C946 2113743N50 100pF C1045 2113743L07 390pF D001 4808032h08 1ss355 E808 809 2409134j04 blm11b601s C881 882 2113741F41 4 7nF C948 2...

Page 131: ...662057n33 res_270K J700 0987984k02 conn_va L807 2409154M20 39n L931 2486185u01 1u Q805 4805921t11 21t11 R104 0662057M98 res_10K L808 2409154M17 22n L932 2409154M20 39n Q806 807 4805723X03 umd3n R105 0662057n15 res_47K L809 810 2409154M14 12n Q808 4809579E41 ne38018 R107 108 0662057m50 res_100 L811 812 2413926m12 8 2n CONTACTS Q900 4805723X02 umt1 R109 0662057n15 res_47K L813 2413926g11 22n Ref Par...

Page 132: ...56 res_180 U800 5109944C20 linear mixer RF R600 0680195M64 res_0 24 R809 0662057m54 res_150 R919 0662057M67 res_510 U801 5880334L02 i q splitter R601 0662057n11 res_33K R810 0662057M50 res_100 R921 0662057m60 res_270 SHIELDS U802 4808115L16 pin diode R602 604 0662057v24 res_75K R812 0662057m60 res_270 R922 0662057m64 res_390 Ref Part Description U803 5108428S43 Lnodct R605 0662057V21 res_56K R814 ...

Page 133: ...CD 73B02964C06 O J2 1 J1 14 J1 15 to keypad to LCD J1 12 J1 13 J1 10 J1 11 J1 8 J1 9 J1 5 J1 6 J1 7 J1 3 J1 4 J1 1 J1 2 J2 3 J2 2 J2 6 J2 5 J2 4 J2 8 J2 7 J2 10 J2 9 J2 12 J2 11 J2 14 J2 13 J2 16 J2 15 J2 18 J2 17 J2 21 J2 20 J2 19 J1 22 J2 22 J1 20 J1 21 J1 18 J1 19 J1 16 J1 17 ...

Page 134: ...SCHEMATIC DIAGRAMS MTH500 Flex CD 6 32 68P02963C70 O This page left blank intentionally ...

Page 135: ...cal CGISS office for information Motorola European Radio Support Centre ERSC Phone 49 6128 702618 Heinrich Hertz Strasse 1 D 65232 Taunusstein Germany ERSC Customer Information Desk available through the following service number Austria 06 60 75 41 Italy 16 78 77 387 Belgium 08 00 72 471 Luxemburg 08 00 23 27 Denmark 80 01 55 72 Netherlands 60 22 45 13 Finland 08 00 11 49 10 Norway 80 01 11 15 Fra...

Page 136: ...port https businessonline motorola com go to Contact Us to request technical sup port Motorola Parts Accessories and Aftermarket Division AAD Attention Order Processing 1313 E Algonquin Road Schaumburg IL 60196 Parts Identification 1 847 538 0021 Voice 1 847 538 8194 Fax Some replacement parts spare parts and or product information can be ordered directly If a complete Motorola part number is assi...

Page 137: ...ly 0186396T04 0186396T05 Back Housing Assembly Black Back Housing Assembly Blue 8586381J03 Antenna 380 400 MHz R1 0186613T01 0186613T02 0186239T01 0186239T02 Standard Battery Door Assembly Black Standard Battery Door Assembly Blue Extended Battery Door Assembly Black Extended Battery Door Assembly Blue 7287702M01 LCD Module FCN9090A Keypad Kit FCN9797A LCD Kit See Service Replacement Kit Matrix be...

Page 138: ...ndard battery 800mAh LiIon Blue with battery door Chargers FLN9468A Dual Pocket Desktop Charger SPN4716B Travel charger SYN7455A Plug Adapter UK for travel Charger SYN7456A Plug Adapter EU for travel Charger FLN9469A Vehicular battery charger Vehicular Adapters FLN2850A Car Kit FLN9569A Stand alone car cradle Audio accessories WADN4184A Headset with Boom mic and in line PTT FLN9470A Headset with B...

Page 139: ...atin America Name Part Number MTH500 CPS PMVN4065B Data Cable FKN4897A Sales Model Description Service Tanapa Description MTH500 Black 380 400 MHz PT811F FUF1208AS MTH500 Black S T R1 CLEAR FUF1210AS MTH500 Black S T R1 TEA1 FUF1211AS MTH500 Black S T R1 TEA2 MTH500 Blue 380 400 MHz PT811F FUF1209AS MTH500 Blue S T R1 CLEAR FUF1212AS MTH500 Blue S T R1 TEA1 FUF1213AS MTH500 Blue S T R1 TEA2 ...

Page 140: ...Replacement Parts and Kits 6 68P02963C70 O ...

Page 141: ...Replacement Parts and Kits 68P02963C70 O 7 ...

Page 142: ...Replacement Parts and Kits 8 68P02963C70 O ...

Page 143: ...ment required for servicing MTH500 radios Name Part Number Anritsu Digital Signal Generator MG3660A Power Meter HP437B Power Supply HP6032A Universal Multimeter HP3457A RF Probe HP85024A Spectrum Analyzer HP8560E R S Audio Analyzer UPL16 Data Cable FKN4897 Flash Data programming cable FLN9636 IFR System 2968 ...

Page 144: ...Test Equipment Service Aids Tools A2 2 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 145: ...fail fatal codes for the MTH500 Portable Ra dios The radio is inoperatable the user should return the radio to Depot Table 2 Self Check Fail Fatal Codes Table 1 Self Check Error Non Fatal Codes Message Cause Error00001 A non fatal error was logged during operation Error00002 Codeplug error log validity error Message Cause Fail00100 Old CodePlug Version failure Fail00200 New CodePlug Version failur...

Page 146: ...ail00810 CP Corrupted block Fail00811 CP Corrupted codeplug Fail00812 CP Radio Operattion System eror Fail00813 CP Lower layer error Fail00814 CP Too many arguments Fail00815 CP Log over ow Fail00816 CP Invalid check summ Fail00817 CP Not initilized Fail00818 CP Ambiguous code Fail00819 CP Invalid start entry Fail0081A CP Duplicate data Fail0081B CP Invalid version number Fail01000 Flash checksum ...

Page 147: ...adrature Phase Shift Keying A sub class of the QPSK methods of transmitting data Rather than using the absolute value of phase as in QPSK only the difference between the current value of phase and the previous value of phase are used By using phase differences the implementation is simpler since an absolute reference source is not required DSI Data Serial Input DSO Data Serial Output DTMF Dual Ton...

Page 148: ... microcontroller that restarts execution RF PA Radio Frequency Power Amplifier RTS Request To Send SRAM Static RAM chip used for volatile program data memory SSI Synchronous Serial Interface RF Radio Frequency STN Super Twisted Nematic TDMA Time Division Multiple Access TDS TETRA Diagnostics Software TOT Time Out Timer a timer that limits the length of a transmission TranLin IC Transmit Linear IC ...