Motorola PR860 Detailed Service Manual
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Motorola PR860 Detailed Service Manual

Two-way portable radio
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PR860
Two-Way Portable Radio
Detailed
Service Manual

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  • Page 1 PR860 Two-Way Portable Radio Detailed Service Manual...

  • Page 3: Foreword

    No duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola.
  • Page 4 Document History The following major changes have been implemented in this manual since the previous edition: Edition Description Date 6881098C43-O Original Release Feb. 2005 6881098C43-P EPP Conversion: Added Schematics, Parts List Jul. 2008 for VHF: 8415112H01, U1:8415234H09 and U2:8415235H07...
  • Page 5 Notes...

  • Page 6: Table Of Contents

    Table of Contents Table of Contents Foreword ....................ii Product Safety and RF Exposure Compliance................ii Manual Revisions ........................ii Computer Software Copyrights ....................ii Document Copyrights.........................ii Disclaimer...........................ii Trademarks ..........................ii List of Figures ..................... ix Chapter 1 Introduction ................1-1 Scope of Manual ......................1-1 Warranty and Service Support..................
  • Page 7 Table of Contents UHF1 Voltage Control Oscillator (VCO) ..............2-10 UHF2 Transmitter ....................... 2-11 2.8.1 Power Amplifier (PA) ..................2-12 2.8.2 Antenna Switch....................2-12 2.8.3 Harmonic Filter ....................2-12 2.8.4 Antenna Matching Network................2-12 2.8.5 Power Control Integrated Circuit (PCIC)............2-12 UHF2 Receiver ......................
  • Page 8 4.10 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) ..... 4-84 4.11 Low Band Section ....................... 4-97 Appendix A Replacement Parts Ordering..........A-1 Basic Ordering Information ...................A-1 Transceiver Board and VOCON Board Ordering Information........A-1 Motorola Online......................A-1 Mail Orders ........................A-1 Telephone Orders ......................A-2 Fax Orders ........................A-2 Parts Identification ......................A-2...
  • Page 9 viii Table of Contents Notes...

  • Page 10: List Of Figures

    List of Figures List of Figures Figure 2-1. DC Power Distribution Block Diagram ..............2-1 Figure 2-2. Controller Block Diagram ..................2-3 Figure 2-3. Transmitter Block Diagram ..................2-4 Figure 2-4. UHF Receiver Block Diagram ................... 2-6 Figure 2-5. Frequency Generation Unit Block Diagram .............. 2-8 Figure 2-6.
  • Page 11 List of Figures Figure 4-26: UHF (403–470 MHz) Harmonic Filter Schematic Diagram........4-28 Figure 4-27: UHF (403–470 MHz) Main Board Top Side: PCB No. 8415234H09 ..... 4-32 Figure 4-28: UHF (403–470 MHz) Main Board Bottom Side: PCB No. 8415234H09 ....4-33 Figure 4-29: UHF Controls And Switches Schematic Diagram: PCB No.
  • Page 12 List of Figures Figure 4-73: Low Band (29.7–42/35–50 MHz) Controller Microprocessor Schematic Diagram ....................4-100 Figure 4-74: Low Band (29.7–42/35–50 MHz) Controller ASFIC Schematic Diagram..... 4-101 Figure 4-75: Low Band (29.7–42/35–50 MHz) Controller Memory Schematic Diagram ..4-102 Figure 4-76: Low Band (29.7–42/35–50 MHz) Controller Audio PA Schematic Diagram ..4-103 Figure 4-77: Low Band (29.7–42/35–50 MHz) Interface Diagram..........
  • Page 13 List of Figures Notes...

  • Page 14: Chapter 1 Introduction

    1.2.1 Warranty Period The terms and conditions of warranty are defined fully in the Motorola dealer or distributor or reseller contract. These conditions may change from time to time and the following notes are for guidance purposes only. 1.2.2 Return Instructions In instances where the product is covered under a “return for replacement”...

  • Page 15: Related Documents

    Motorola. If the part number is appended with an asterisk, the part is serviceable by a Motorola depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.

  • Page 16: Radio Model Chart And Specifications

    Model Freq. Power Physical Channel Feature Model Model Protocol Unit Series Band Level Packages Spacing Level Revision Package 4–5W PR860 Program- Conven- PR860 (136–174 (no display) mable tional (non-key- MHz) pad) UHF1 (403–470 MHz) UHF2 (450–527 MHz) Band, R1 (29.7–...
  • Page 17 Introduction: Radio Model Information Notes...

  • Page 18: Chapter 2 Theory Of Operation

    Chapter 2 Theory of Operation Introduction This chapter provides a detailed theory of operation for the radio components. Schematic diagrams for the circuits described in the following paragraphs are located in Figures 4-1 through 4-56. Radio Power Distribution A block diagram of the DC power distribution throughout the radio board is shown in Figure 2-1.
  • Page 19 Theory of Operation: Radio Power Distribution Table 2-1. VDD Regulator Scheme by Band Band Regulator Scheme Low Band Dual Dual Dual Table 2-2. Radio Jumpers Dual Vdd Single Vdd Jumpers Regulator Regulator Scheme Scheme R401 R402 R403 R404 R405 R = Regulator Jumper...

  • Page 20: Controller Board

    Theory of Operation: Controller Board Controller Board The controller board is the central interface between the various radio functions. It is separated into MCU digital and audio/signalling functions as shown in Figure 2-2. External Mod Out Microphone To Synthesizer Internal Microphone 16.8 / 17.0 MHz Reference Clock...

  • Page 21: Modb/Vstby Supply

    Theory of Operation: UHF1 Transmitter 2.3.2 MODB/VSTBY Supply The supply to the MODB/VSTBY pin varies depending on the conditions listed in Table 2-4. Table 2-4. MODB/VSTBY Supply Modes Condition Circuit Operation Radio On Vddd supply voltage via CR411 Radio Off •...

  • Page 22: Power Amplifier (Pa)

    Theory of Operation: UHF1 Transmitter 2.4.1 Power Amplifier (PA) The PA consists of two LDMOS devices: • 9Z67 LDMOS driver IC (U101) and • PRF1507 LDMOS PA (Q110) The 9Z67 LDMOS driver IC contains a 2 stage amplification with a supply voltage of 7.3V. This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input signal of 2mW (3dBm) (pin16).

  • Page 23: Temperature Cut Back Circuit

    Theory of Operation: UHF1 Receiver 2.4.6 Temperature Cut Back Circuit Diode CR105 and associated components are part of a temperature cutback circuit. This circuit senses the printed circuit board temperature around the transmitter circuits and outputs a DC voltage to the PCIC. If the DC voltage produced exceeds the set threshold of the PCIC, the transmitter output power decreases to reduce the transmitter temperature.

  • Page 24: Receiver Back-End

    Theory of Operation: UHF1 Receiver Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth of the filter is about 50 MHz. This enables the filters to be electronically controlled by using a single control voltage which is DACRx .

  • Page 25: Frequency Generation Circuit

    Theory of Operation: UHF1 Receiver 2.5.3 Frequency Generation Circuit Dual Tran- sistor Voltage Multiplier Rx Out Matching Pass Mixer Network Filter VCOBIC Aux3 Rx VCO Circuit Vmult1 U241 Synthesizer Aux4 Vmult2 U201 Loop Filter Tx Out Attenuator PA Driver 16.8 MHz Ref.

  • Page 26: Uhf1 Synthesizer

    Theory of Operation: UHF1 Synthesizer UHF1 Synthesizer The Fractional-N Synthesizer uses a 16.8MHz crystal (FL201) to provide a reference for the system. The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz as reference frequencies. Together with C206, C207, C208, R204 and CR203 , they build up the reference oscillator which is capable of 2.5ppm stability over temperatures of -30 to 85°C.

  • Page 27: Uhf1 Voltage Control Oscillator (Vco)

    2-10 Theory of Operation: UHF1 Voltage Control Oscillator (VCO) UHF1 Voltage Control Oscillator (VCO) AUX3 (U201 Pin2) Level Shifter AUX4 (U201 Pin3) Network U201 Pin 32 Prescaler Out TRB_IN Pin 20 Pin 19 Pin 12 Pin7 Rx-SW TX/RX/BS Pin13 Tx-SW Switching Network LO RF INJECTION Presc...

  • Page 28: Uhf2 Transmitter

    Theory of Operation: UHF2 Transmitter 2-11 The VCOBIC (U241) is operated at 4.54 V (VSF) and Fractional-N synthesizer (U201) at 3.3V. This difference in operating voltage requires a level shifter consisting of Q260 and Q261 on the TRB line. The operation logic is shown in Table 2-5.

  • Page 29: Power Amplifier (Pa)

    2-12 Theory of Operation: UHF2 Transmitter 2.8.1 Power Amplifier (PA) The PA consists of two LDMOS devices: • 9Z67 LDMOS driver IC (U101) and • PRF1507 LDMOS PA (Q110) The 9Z67 LDMOS driver IC contains a 2 stage amplification with a supply voltage of 7.3V. This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input signal of 2mW (3dBm) (pin16).

  • Page 30: Uhf2 Receiver

    Theory of Operation: UHF2 Receiver 2-13 UHF2 Receiver Antenna Pin Diode Varactor Varactor Antenna Crystal RF Amp Mixer IF Amp Tuned Filter Tuned Filter Switch RF Jack Filter First LO from VCO Control Voltage from ASFIC U301 Demodulator Limiter Recovered Audio RSSI 455kHz 455kHz...

  • Page 31: Receiver Back-End

    2-14 Theory of Operation: UHF2 Receiver The IF signal coming out of the mixer is transfered to the crystal filter (FL301) through a resistor pad and a diplexer (C322 and L310). Matching to the input of the crystal filter is provided by C324 and L311.

  • Page 32: Uhf2 Synthesizer

    Theory of Operation: UHF2 Synthesizer 2-15 The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer (U201), and the VCO/Buffer IC (U241). Designed in conjunction to maximize compatibility, the two ICs provide many of the functions that normally would require additional circuitry. The synthesizer block diagram illustrates the interconnect and support circuitry used in the region.

  • Page 33: Figure 2-11. Synthesizer Block Diagram

    2-16 Theory of Operation: UHF2 Synthesizer LOCK LOCK (U409 PIN 56) DATA (U409 PIN 100) DATA FREFOUT FREF (U201 PIN 21 & U404 PIN 34) CLOCK (U409 PIN 1) 6, 22, 23, 24 U251 CSX (U409 PIN 2) STEERING LOW VOLTAGE LINE MODIN MOD IN (U404 PIN 40)

  • Page 34: Uhf2 Voltage Controlled Oscillator (Vco)

    Theory of Operation: UHF2 Voltage Controlled Oscillator (VCO) 2-17 2.11 UHF2 Voltage Controlled Oscillator (VCO) (Refer to UHF (450–512 MHz) Voltage Controlled Oscillator Schematic Diagram on page 4-51) AUX3 (U201 Pin2) Level Shifter AUX4 (U201 Pin3) Network U201 Pin 32 Prescaler Out TRB_IN Pin 20...
  • Page 35 2-18 Theory of Operation: UHF2 Voltage Controlled Oscillator (VCO) The operation logic is shown in Table 2-6. Table 2-6. Level Shifter Logic Desired Mode AUX 4 AUX 3 High (@3.2V) High (@4.8V) High Battery Saver Hi-Z/Float (@2.5V) In the receive mode, U241 pin 19 is low or grounded. This activates the receive VCO by enabling the receive oscillator and the receive buffer of U241.

  • Page 36: Vhf Transmitter

    Theory of Operation: VHF Transmitter 2-19 2.12 VHF Transmitter The VHF transmitter consists of the following basic circuits as shown in Figure 2-13. • Power amplifier • Antenna switch/harmonic filter • Antenna matching network • Power control integrated circuit (PCIC) P C I C Antenna Vcontrol...

  • Page 37: Harmonic Filter

    2-20 Theory of Operation: VHF Transmitter 2.12.3 Harmonic Filter The harmonic filter consists of C3532 to C3536, L3531 and L3532. This network forms a low-pass filter to attenuate harmonic energy of the transmitter to specifications level. The harmonic filter insertion loss should be less than 1.2dB. 2.12.4 Antenna Matching Network A matching network which is made up of L3538 and C3537 is used to match the antenna's impedance to the harmonic filter.

  • Page 38: Vhf Receiver

    Theory of Operation: VHF Receiver 2-21 2.13 VHF Receiver Antenna Pin Diode Varactor Varactor Antenna Crystal RF Amp Mixer IF Amp Tuned Filter Tuned Filter Switch RF Jack Filter First LO from VCO Control Voltage from ASFIC U3220 Demodulator Limiter Recovered Audio RSSI 455kHz...

  • Page 39: Receiver Back-End

    2-22 Theory of Operation: VHF Receiver The IF signal coming out of the mixer is transfered to the crystal filter (Y3200) through a resistor pad (R3321 – R3323) and a diplexer (C3320 and L3309). Matching to the input of the crystal filter is provided by C3201 and L3200.

  • Page 40: Frequency Generation Circuit

    Theory of Operation: VHF Synthesizer 2-23 2.13.4 Frequency Generation Circuit Voltage Multiplier Rx Out Mixer VCOBIC Aux3 Rx VCO Circuit Vmult1 U3801 Synthesizer Vmult2 U3701 Loop Filter Tx Out PA Driver 16.8 MHz Ref. Osc. Tx VCO Circuit MOD Out Modulating Signal Figure 2-15.

  • Page 41: Figure 2-16. Synthesizer Block Diagram

    2-24 Theory of Operation: VHF Synthesizer LOCK LOCK (U409 PIN 56) DATA (U409 PIN 100) DATA FREFOUT FREF (U3220 PIN 21 & U404 PIN 34) CLOCK (U409 PIN 1) 6, 22, 23, 24 U3701 CSX (U409 PIN 2) STEERING LOW VOLTAGE LINE MODIN MOD IN (U404 PIN 40)

  • Page 42: Voltage Control Oscillator (Vco)

    Theory of Operation: Voltage Control Oscillator (VCO) 2-25 2.15 Voltage Control Oscillator (VCO) AUX3 (U3701 Pin2) U3701 Pin 32 Prescaler Out TRB_IN Pin 20 Pin 19 Pin 12 Pin7 Rx-SW TX/RX/BS Pin13 Tx-SW Switching Network LO RF INJECTION Presc Vcc-Superfilter (U3701 Pin28) Matching U3801...
  • Page 43 2-26 Theory of Operation: Voltage Control Oscillator (VCO) The RF section of the VCOBIC(U3801) is operated at 4.54 V (VSF), while the control section of the VCOBIC and Fractional-N synthesizer (U3701) is operated at 3.3V. The operation logic is shown in Table 2-7.

  • Page 44: Low Band Transmitter

    Theory of Operation: Low Band Transmitter 2-27 2.16 Low Band Transmitter The low band transmitter consists of the following basic circuits as shown in Figure 2-18. • Power amplifier (PA). • Antenna switch/harmonic filter. • Antenna matching network. • Power control integrated circuit (PCIC). Antenna Switch Bias SPI Bus PCIC...

  • Page 45: Antenna Switch

    2-28 Theory of Operation: Low Band Receiver 2.16.2 Antenna Switch The antenna switch circuit consists of two pin diodes (D100 and D101), a RF network (C147 and L103), and a DC feed network (L104, C144, and current limiting resistor R101). In the transmit mode, PCIC (U102) pin 32 goes high supplying current via the feed network to bias the diodes “on”.

  • Page 46: Receiver Front-End

    Theory of Operation: Low Band Receiver 2-29 Antenna Lowpass Antenna Highpass Lowpass Crystal RFJack Filter Switch Filter Filter Mixer Filter First LO Processing from FGU Recovered Audio Demodulator Squelch IF IC U303 RSSI Synthesizer 17.0 MHz Reference Clock SPI Bus Second LO VCO Figure 2-19.

  • Page 47: Receiver Back-End

    2-30 Theory of Operation: Low Band Receiver 2.17.2 Receiver Back-End The output of crystal filter FL301 is connected to the input of IF amplifier transistor U301. Components L303 and C348 and R301 form the termination for the crystal filter and the signal is coupled to one gate of U301 by C303.

  • Page 48: Synthesizer

    Theory of Operation: Synthesizer 2-31 The synthesizer is powered by regulated 5V and 3.3V. The 5 volt signal to the synthesizer as well as the rest of the radio is provided by U204. The 3.3 v signal is provided by U200 in the controller. The 5V signal goes to pins 13 and 30 while the 3.3V signal goes to pins 5, 20, 34 and 36 of U201.

  • Page 49: Voltage Control Oscillators (Vco)

    2-32 Theory of Operation: Voltage Control Oscillators (VCO) Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier made up of C247, C283, C284, C285, C286, and triple diodes D210 and D211. This circuit provides 13.3V at U205, pin 47.

  • Page 50: Diplexer/Output Filters

    Theory of Operation: Voltage Control Oscillators (VCO) 2-33 2.19.4 Diplexer/Output Filters The output of the buffer drives a pair of parallel filters forming a diplexer. One filter is a lowpass filter in the TX pass that passes 29.7–50 MHz signals for the transmitter into the power amplifier while rejecting the receive LO injection signals at 139–160 MHz.
  • Page 51 2-34 Theory of Operation: Voltage Control Oscillators (VCO) Notes...

  • Page 52: Chapter 3 Maintenance

    Chapter 3 Maintenance Introduction This chapter of the manual describes: • Preventive maintenance • Safe handling of CMOS devices • Repair procedures and techniques Preventive Maintenance The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended. Inspection Check that the external surfaces of the radio are clean, and that all external controls and switches are functional.

  • Page 53: Safe Handling Of Cmos And Ldmos

    When damaged parts are replaced, identical parts should be used. If the identical replacement component is not locally available, check the parts list for the proper Motorola part number and order the component from the nearest Motorola Communications parts center listed in the “Piece Parts”...
  • Page 54 Maintenance: General Repair Procedures and Techniques • Chip Components Use either the RLN-4062 Hot-Air Repair Station or the Motorola 0180381B45 Repair Station for chip component replacement. When using the 0180381B45 Repair Station, select the TJ-65 mini-thermojet hand piece. On either unit, adjust the temperature control to 700 degrees F.

  • Page 55: Recommended Test Tools

    8. Remove the circuit board and inspect the repair. No cleaning should be necessary. Recommended Test Tools Table 3-1 lists the recommended tools used for maintaining this family of radios. These tools are also available from Motorola. Table 3-1. Recommended Test Tools Motorola Part Description...

  • Page 56: Replacing The Circuit Board Fuse

    Maintenance: Replacing the Circuit Board Fuse Replacing the Circuit Board Fuse In cases where the radio fails to turn on when power is applied, the circuit board fuse should always be checked as a probable cause of the failure. The locations of the fuse for both the UHF and VHF boards are shown in Figure 3-1 on page 3-6.

  • Page 57: Figure 3-1. Uhf/Vhf/Low Band Circuit Board Fuse Locations

    Maintenance: Replacing the Circuit Board Fuse J102 R328 R340 C307 C108 C339 L303 Q301 C340 R304 R101 C3301 C3231 CR303 C341 L304 C3232 C342 C321 R305 C311 R347 C345 C3233 C3242 C314 C334 C347 P100 C3234 C3224 C356 U301 C348 C395 C132 C312...

  • Page 58: Removing And Reinstalling The Circuit Board

    2. Lift the circuit board out of the radio chassis, then remove and discard the thermal pad located between the circuit board and chassis. 3. After repairs, replace the thermal pad (Motorola P/N 7580556Z01) then reinstall the circuit board into the radio chassis.
  • Page 59 Maintenance: Power Up Self-Test Error Codes Table 3-2. Power Up Self-Test Error Codes (Continued) If the error code Then, there is To correct the problem ... displayed is ... a ... No Display improperly connected check connection between main board and display module or display module or replace with new display module.

  • Page 60: Uhf Troubleshooting Charts

    Maintenance: UHF Troubleshooting Charts 3.10 UHF Troubleshooting Charts MCU Check Press PTT. Red LED does not Before replacing light up Not able to Power Up MCU, check SPI program RF AUDIO Audio at Alert Tone clock, SPI data, Board ICs J403 Audio AudioPA and RF IC select...
  • Page 61 3-10 Maintenance: UHF Troubleshooting Charts START Bad SINAD Bad 20dB Quieting No Recovered Audio Check Controller Audio at pin 8 of U301? Spray or inject 1st IF 44.85 MHz into XTAL Filter Check Q302 bias circuitry for faults. Audio heard? Rotate Freq.
  • Page 62 Maintenance: UHF Troubleshooting Charts 3-11 Inject RF into J101 Trace IF signal Q302 from L311 to IF Signal at collector OK? Q302. Check for L311? IF signal bad XTAL filter. present? Before replacing U301, check U301 voltages; 1st LO O/P trace IF signal RF Signal Check FGU...
  • Page 63 3-12 Maintenance: UHF Troubleshooting Charts START No Power Is There B+ Check Q111 Bias for Ant switch Check Is Control Voltage Is Current PCIC High or Low High Check Drive to Module 1. Check Pin Diodes 2. Check Harmonic Filter Is Drive Troubleshoot Inspect/Repair Tx.
  • Page 64 Maintenance: UHF Troubleshooting Charts 3-13 Check U248, 3.3V at U201 Start L201 & L202 pins 5, 20, 34 & Visual Check CR201, U210, Correct check of the U211, C258, C259 & Problem Board OK? C228 Is U201 Pin 47 Is 16.8MHz 16.8MHz at pin 6 of Replace...
  • Page 65 3-14 Maintenance: UHF Troubleshooting Charts START Change U241 No LO? Change L253 O/C? L253 Pin 10 TRB = 5V? Tx Carrier? >1V? VCO OK Check R245 for dry joint or faulty AUX 3 Check High? R260 Check U201 Pin 2 for 3.2V Change L243 V ctrl 0V...

  • Page 66: Vhf Troubleshooting Charts

    Maintenance: VHF Troubleshooting Charts 3-15 3.11 VHF Troubleshooting Charts MCU Check Press PTT. Red LED does not Before replacing light up Power Up Not able to MCU, check SPI Audio Alert Tone program RF AUDIO clock, SPI data, at Audio PA Board ICs J403 Audio and RF IC select...
  • Page 67 3-16 Maintenance: VHF Troubleshooting Charts START Bad SINAD Bad 20dB Quieting No Recovered Audio Check Controller (in the case of no audio) Audio at pin 8 OR ELSE go to “B” of U3220? Spray or inject 44.85MHz into XTAL Filter Y3200 Audio heard? Check Q3200 bias for faults.
  • Page 68 Maintenance: VHF Troubleshooting Charts 3-17 Inject RF into J3501 Trace IF signal Q3200 from L3200 to IF Signal at collector OK? Q3200. Check for L3200? IF signal bad XTAL filter. present? Before replacing U3220, check U3220 voltages; 1st LO O/P trace IF signal RF Signal at Check FGU...
  • Page 69 3-18 Maintenance: VHF Troubleshooting Charts START No Power Is There B+ Check Bias for Ant Q3561 switch Is Control Voltage Is Current Check PCIC High or Low High Check Drive to Module 1. Check Pin Diodes 2. Check Harmonic Filter Is Drive Troubleshoot Inspect/Repair Tx.
  • Page 70 Maintenance: VHF Troubleshooting Charts 3-19 Check U3201, 3.3V at U3701 Start L3731 pins 5, 20, 34 & Visual Check D3701, D3702, Correct check of the U3701, C3701 - Problem Board OK? C3707 Is U3701 Pin 47 Is 16.8MHz 16.8MHz Replace at pin 6 of AT = 13 VDC Signal at...
  • Page 71 3-20 Maintenance: VHF Troubleshooting Charts START Change U3801 L3831, Change L3832, No LO? L3831, L3832 L3833 O/ Pin 10 TRB = 3.2V? Tx Carrier? >1V? VCO OK Check R3811, L3811 for dry joint or faulty AUX 3 Check High? R3829 Change Check U3701 L3821,...

  • Page 72: Low Band Troubleshooting Charts

    Maintenance: Low Band Troubleshooting Charts 3-21 3.12 Low Band Troubleshooting Charts MCU Check Press PTT. Red LED does not Before replacing light up Power Up Not able to pro- MCU, check SPI Alert Tone gram RF Board AUDIO Audio at clock, SPI data, J403 Audio AudioPA...
  • Page 73 3-22 Maintenance: Low Band Troubleshooting Charts START Bad SINAD Bad 20dB Quieting No Recovered Audio Check Controller Audio at pin 27 of U303? Spray of inject 1st IF into XTAL Filter IF Freq: 109.65 MHz Check Q301 bias cir- cuitry for faults. Audio heard? Rotate Freq.
  • Page 74 Maintenance: Low Band Troubleshooting Charts 3-23 Inject RF into J101 Trace IF signal from L301 to U301 drain OK? IF Signal at U301. Check for IF signal L301? bad XTAL filter present? Before replacing U303, check U303 voltages; trace IF signal path 1st LO O/P RF Signal at...
  • Page 75 3-24 Maintenance: Low Band Troubleshooting Charts START No Power Is control voltage at Is Current ~ Check PCIC U101 Pin 1 > 5 2 A? Check input to U101, Pin 16 1. Check Pin Diodes 2. Check Harmonic Filter 3. Check PA Bias Troubleshoot Is voltage >...
  • Page 76 Maintenance: Low Band Troubleshooting Charts 3-25 Check U200 3.3V at U205 Start and L225 pins 5, 20, 34 & 36 Visual Correct check of the Problem Board OK? Check C247, C249, Is 17.0 MHz 17.0MHz Is U205 Pin Replace C283, C284, C285, Signal at signal at 47 >...
  • Page 77 3-26 Maintenance: Low Band Troubleshooting Charts No RX LO or No No TX LO or No signal at U205 Pin 32 signal at U205 Pin 32 in RX in TX Check signal at Check signal at collector of Q201 collector of Q201 Check L204, L211, L212, Level >...

  • Page 78: Chapter 4 Schematic Diagrams, Overlays, And Parts Lists

    1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads (pF) or microfarads (µF). 2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with the voltage probe to prevent circuit loading.

  • Page 79: Flex Layout

    Schematic Diagrams, Overlays, and Parts Lists: Flex Layout Flex Layout 4.2.1 Universal Flex Connector J403 J416 J415 J414 J413 J412 J411 J410 J409 J408 J407 J406 J405 J404 Back Metal Front Metal View From Top Side View From Top Side Figure 4-1: Universal Flex Connector...

  • Page 80: Universal Connector Flex Schematic

    J415 BOOT_CTRL J416 M401 C402 100pF FL0830718O Figure 4-2: Universal Flex Connector Schematic Diagram 4.2.3 Universal Flex Connector Parts List Reference Motorola Part Description Symbol C402 2113740A55 Cap, 100pF M400 5085962A02 Speaker, 20 ohm M401 5013920A04 Microphone for 5000 and 7000 Series...
  • Page 81 Schematic Diagrams, Overlays, and Parts Lists: Flex Layout Notes...

  • Page 82: Controller Section (403-470 Mhz: 8486458Z03, 8415234H09, 450-512 Mhz: 8486686Z02 & 450-527 Mhz: 8415235H07)

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) TO/FROM RF RED_LED IF_RED_LED_CTRL RED_LED GREEN_LED IF_GREEN_LED_CTRL GREEN_LED IF_SB1_CTRL AUDIO IF_SB2_CTRL...

  • Page 83: Figure 4-4: Uhf Controller Asfic/On_Off Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) 4V_3.3V R405 R402 SWB+ Q400 Vddd TP406 UNSWB+ C401 C400 R401 0.1uF .01uF R406 TP410 C403 U400 10uF LP2951ACMM-3.3 BATT_CODE C402 R407 INPUT OUTPUT...

  • Page 84: Figure 4-5: Controller Mircoprocessor Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) Vddd F1200 R409 R457 SCI_TX SCI_RX TP401 TP402 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C423 C449 C453 100pF 100pF 100pF 100pF...

  • Page 85: Figure 4-6: Uhf Controller Memory Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) Figure 4-6: UHF Controller Memory Schematic Diagram...

  • Page 86: Figure 4-7: Uhf Controller Audio Pa Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) UNSWB+ OPT_SEL2 SWB+ C475 OPT_SEL1 VR445 VR446 VR447 10uF 10.0V 10.0V 10.0V VR449 10.0V VR448 R473 10.0V R450 J403 U420 C442 C471 20 PIN CONNECTOR R499...

  • Page 87: Figure 4-8: Uhf Controller Interface Schematic Diagram

    4-10 Schematic Diagrams, Overlays, and Parts Lists: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07) C466 100pF C458 100pF C404 800 MHz only 100pF C459 100pF R481 C526 C527 100pF 100pF J400 40 - PIN CONNECTOR J400-40 EXT_MIC EXT_MIC...

  • Page 88: Figure 4-9: Vhf Complete Controller Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) 4-11 Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) TO/FROM RF IF_RED_LED_CTRL RED_LED RED_LED IF_GREEN_LED_CTRL GREEN_LED GREEN_LED TO_RF IF_SB1_CTRL Dual Vdd Single Vdd AUDIO IF_SB2_CTRL Regulator Scheme Regulator Scheme IF_SB3_CTRL 4V_3.3V...

  • Page 89: Figure 4-10: Vhf Controller Asfic/On_Off Schematic Diagram: Pcb No. 8486473Z04

    4-12 Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) 4V_3.3V R405 R402 SWB+ Q400 Vddd TP406 UNSWB+ C401 C400 R401 0.1uF .01uF R406 TP410 C403 U400 10uF LP2951ACMM-3.3 BATT_CODE C402 R407 OUTPUT INPUT Vddd INT_EXT_Vdd 0.1uF ERROR...

  • Page 90: Figure 4-11: Vhf Controller Asfic/On_Off Schematic Diagram: Pcb No. 8415112H01

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) 4-13 4V_3.3V R405 R402 SWB+ Vddd Q400 TP406 BATT_CODE Vddd UNSWB+ C401 C400 R401 0.1uF .01uF R406 R427 2.7K U400 C402 LP2951 ACMM-3. 3 0.1uF C403 CR412 10uF INPUT...

  • Page 91: Figure 4-12: Vhf Controller Mircoprocessor Schematic Diagram: Pcb No. 8486473Z04

    4-14 Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) Vddd F1200 R457 R409 SCI_TX SCI_RX TP402 TP401 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF L411 390nH U410 3.3V...

  • Page 92: Figure 4-13: Vhf Controller Mircoprocessor Schematic Diagram: Pcb No. 8415112H01

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) 4-15 Vddd F1200 R457 R409 SCI_ TX SCI_ RX TP401 TP402 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF L411 390nH...

  • Page 93: Figure 4-14: Vhf Controller Memory Schematic Diagram: Pcb No. 8486473Z04

    4-16 Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) FLASH ROM Figure 4-14: VHF Controller Memory Schematic Diagram: PCB No. 8486473Z04...

  • Page 94: Figure 4-15: Vhf Controller Memory Schematic Diagram: Pcb No. 8415112H01

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) 4-17 FLASH ROM Figure 4-15: VHF Controller Memory Schematic Diagram: PCB No. 8415112H01...

  • Page 95: Figure 4-16: Vhf Controller Audio Pa Schematic Diagram

    4-18 Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) UNSWB+ OPT_SEL2 SWB+ C475 C474 OPT_SEL1 10uF .01uF VR447 10.0V VR448 VR449 C483 C484 10.0V 10.0V 470pF 470pF R473 R450 C471 J403 470pF C472 U420 C442 C473 20 PIN CONN...

  • Page 96: Figure 4-17: Vhf Controller Interface Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Controller Section (136–174 MHz for 8486473Z04 & 8415112H01) 4-19 C466 100pF C458 100pF R481 C459 100pF J400 40 - PINS CONNECTOR EXT_MIC J400-40 EXT_MIC VS_CS J400-39 VS_CS SWB+ J400-38 SW_B+ E400 Vddd J400-37 Vddd VS_AUDSEL VS_AUDSEL J400-36...

  • Page 97: Uhf Band 1 Section

    4-20 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section UHF Band 1 Section R410 C521 E407 E409 R437 SH323 C338 FL302 C325 C349 VR501 U405 TP201 J400 R506 SH201 U247 C324 Q505 C220 L311 R505 R355 L203 R324 C352 C426 C425...

  • Page 98: Figure 4-19: Uhf (403-470 Mhz) Main Board Bottom Side: Pcb 8486458Z03 Rev. C

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section 4-21 R131 R132 SH403 C415 R130 Q410 CR105 R109 C430 C440 C373 C414 C133 C476 R349 R436 C172 Q111 Q310 R172 C451 C450 R330 R331 C410 L281 CR241 J101 C409 C371 C372 C138...

  • Page 99: Figure 4-20: Uhf (403-470 Mhz) Controls And Switches Schematic Diagram

    4-22 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section RADIO_CODE B501 L505 UNSWB+ BATTERY_CONTACT 390nH BATT_CODE DATA BATT+ F501 CONN_J S502 BATT MECH_SWB+ SWITCH LI_ION B503 TAB2 VR506 B504 C502 CR501 VR439 C503 TAB1 0.47uF 6.8V 100pF R507 C505 6.8V VR501...

  • Page 100: Figure 4-21: Uhf (403-470 Mhz) Receiver Front End Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section 4-23 DACRx C322 82pF R342 100K L310 150nH C315 R308 C314 R310 R305 100pF 0.1uF R304 R309 C380 .01uF CR306 L304 C321 T301 180nH 100pF C306 XFMR C309 C308 R306 100pF R307 100pF...

  • Page 101: Figure 4-22: Uhf (403-470 Mhz) Receiver Back End Schematic Diagram

    4-24 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section U302-1 R345 R360 TC7W04F FL303 C352 CFWC455E 0.1uF 1 IN U302-3 TC7W04F U302-4 PWR_GND R355 100K BW_SEL U302-2 CR312 R321 R324 TC7W04F FL304 C362 CFWC455G 0.1uF OUT 2 R361 CR313 R350 R358...

  • Page 102: Figure 4-23: Uhf (403-470 Mhz) Voltage Controlled Oscillator Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section 4-25 C281 R245 100pF R242 L243 C250 C286 RESONATOR C276 C285 7.5pF 2.2uF 0.1uF 100pF C246 L281 R241 L273 100pF 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L242 L271 R244 7.5pF 220nH...

  • Page 103: Figure 4-24: Uhf (403-470 Mhz) Synthesizer Schematic Diagram

    4-26 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section U210 U211 TC7ST04FU C296 TC7ST04FU C265 C257 0.1uF 100pF 3 GND C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 3 K3 10uF C294 C293 L202 U248 4V_3.3V 2 K2 A2 5 100pF...

  • Page 104: Figure 4-25: Uhf (403-470 Mhz) Transmitter Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section 4-27 E101 R102 BEAD 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 0.1uF C109 L106 UNSWB+ 100pF 7.66nH Microstrip Microstrip X_OUT R106 R172 Q110 C121 C160 R175 L109 L112 L108 100pF 100pF...

  • Page 105: Figure 4-26: Uhf (403-470 Mhz) Harmonic Filter Schematic Diagram

    4-28 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 19.61nH 19.61nH 19.61nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 6.2pF 10pF 6.2pF 4.7pF 3.3pF R170...
  • Page 106 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section 4-29 UHF (403-470 MHz) Radio Parts List (PCB Circuit Motorola Part Circuit Motorola Part Circuit Motorola Part Description Description Description 8486458Z03 rev. C) C201 2113743N50 100pF C285 2113743N50 100pF C360 2113743N14 3.3pF...
  • Page 107 4-30 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1 Section Circuit Motorola Part Circuit Motorola Part Circuit Motorola Part Circuit Motorola Part Description Description Description Description C442 2113743E20 0.1uF CR160 NOT PLACED L115 2462587N22 390nH Q410 4802245J54 Dual NPN Transistor...
  • Page 108 SH201 2680511Z01 Synthesizer Top Shield 8486458Z03 UHF B1 PC Board R314 0662057M79 1600 R416 0662057M98 SH202 2680511Z01 Synthesizer Bottom Shield * Motorola Depot Servicing only R315 0662057N01 R418 0662057M01 SH241 2680513Z01 VCO Resonators Shield R320 NOT PLACED R419 0662057M67 SH242...

  • Page 109: Uhf Band 1: Circuit Board/Schematic Diagrams And Parts List (Pcb 8415234H09)

    4-32 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) R410 C521 C597 E407 C392 R437 32 E409 SH323 C387 C338 FL302 C389 C604...

  • Page 110: Figure 4-28: Uhf (403-470 Mhz) Main Board Bottom Side: Pcb No. 8415234H09

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) 4-33 C522 VR444 VR442 SH322 E404 R376 C437 L505 C523 C334 E406 R373 C350 S502 R374 L331 R372 C383 R366 R368 R359 C359 R371 R378 FL401...

  • Page 111: Figure 4-29: Uhf Controls And Switches Schematic Diagram: Pcb No. 8415234H09

    4-34 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) S502_SWITCH_P5 UNSWB+ FUSE_B+ RADIO_CODE E106 BLM18PG121SN1 B501 C599 C598 BATTERY_CONTACT 3.9pF C597 4.7pF BATT_CODE DATA E107 43pF L505 BLM18PG121SN1 390nH BATT+ E102 F501 BLM21PG221SN1 S502...

  • Page 112: Figure 4-30: Uhf Receiver Front End Schematic Diagram: Pcb No. 8415234H09

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) 4-35 DACRx C322 82pF C391 R342 24pF 100K L310 150nH C315 R308 R305 C314 R310 100pF 0.1uF R304 R309 C380 .01uF L304 C321 CR306 180nH 100pF...

  • Page 113: Figure 4-31: Uhf Receiver Back End Schematic Diagram: Pcb No. 8415234H09

    4-36 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) U302-1 C352 R345 R360 TC7W04F FL303 0.1uF CFWC455E 1 IN U302-3 TC7W04F U302-4 C387 C603 PWR_GND 24pF 24pF R355 100K BW_SEL U302-2 CR312 R321 R324...

  • Page 114: Figure 4-32: Uhf Synthesizer Schematic Diagram: Pcb No. 8415234H09

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) 4-37 U210 U211 TC7ST04FU C296 C257 TC7ST04FU C265 0.1uF 100pF 3 GND C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 3 K3 10uF C294 C293...

  • Page 115: Figure 4-33: Uhf Voltage Controlled Oscillator Schematic Diagram: Pcb No. 8415234H09

    4-38 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) C281 R245 100pF R242 C250 C276 C286 C285 7.5pF L243 2.2uF 100pF 0.1uF RESONATOR C246 L281 L273 R241 100pF 390nH 33nH C242 7.5pF C273 0.1uF...
  • Page 116 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) 4-39 ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L104 L101 L102 19.61nH 17.02nH 17.02nH RX_IN CR102 C101 C102 C103 C104 C106 C107...

  • Page 117: Figure 4-35: Uhf Transmitter Schematic Diagram: Pcb No. 8415234H09

    4-40 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) FUSE_B+ E105 BLM21PG221SN1 E101 BEAD R102 0.075 L107 C114 C123 100pF 33.47nH 10uF C172 100pF C109 L106 100pF 7.66nH (The bom part no is 0613952H49) Microstrip Microstrip TX_OUT...
  • Page 118 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) 4-41 UHF (403–470 MHz) Radio Parts List (PCB Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description 8415234H09) Part No. Part No. Part No.
  • Page 119 4-42 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C311 NOTPLACED –...
  • Page 120 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) 4-43 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C598 2113944A17 CAP CER CHP 4.7PF 50V +/-...
  • Page 121 4-44 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 1: Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H09) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L400 2414017Q42 IDCTR,FXD,390NH,10%,200MA,.
  • Page 122 FM IF IC SA616 FROM PHILIPS R499 0613952R01 CER CHIP RES 10K OHM 5% R428 0613952Q09 CER CHIP RES 2.2 OHM 5 0402 * Motorola Depot Servicing only U302 5115070H01 IC 3-INV LMOS TC7W04FU 0402 R429 0613952R22 CER CHIP RES 75K OHM 5 0402...

  • Page 123: Uhf Band 2 Section

    4-46 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 UHF Band 2 Section R410 C521 E407 E409 R437 C338 FL302 C325 VR501 C349 U405 TP201 J400 R506 SH201 C324 Q505 C220 L311 U247 R355 R505 SH323 L203 C426 C425 C512 C513 C260...

  • Page 124: Figure 4-37: Uhf (450-512 Mhz) Main Board Bottom Side Pcb 8486686Z02 Rev. A

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 4-47 R132 R131 SH403 C415 R130 CR105 Q410 R109 C430 C440 C373 C414 C133 R349 C476 R436 C172 Q310 Q111 R172 C450 C451 R330 R331 L281 C410 J101 C371 C372 CR241 C409 C445 R101...

  • Page 125: Figure 4-38: Uhf (450-512 Mhz) Controls And Switches Schematic Diagram

    4-48 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 RADIO_CODE B501 UNSWB+ L505 BATTERY_CONTACT 390nH BATT_CODE DATA BATT+ F501 CONN_J S502 BATT MECH_SWB+ SWITCH LI_ION B503 TAB2 VR506 B504 C502 CR501 VR439 C503 0.47uF TAB1 6.8V 100pF R507 C505 6.8V VR501 100pF...

  • Page 126: Figure 4-39: Uhf (450-512 Mhz) Receiver Front End Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 4-49 DACRx C322 82pF R342 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 100pF R306 R307 100pF 100K...

  • Page 127: Figure 4-40: Uhf (450-512 Mhz) Receiver Back End Schematic Diagram

    4-50 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 U302-1 TC7W04F C352 R345 R360 0.1uF FL303 U302-4 CFWC455E U302-3 PWR_GND TC7W04F OUT 2 R355 100K U302-2 TC7W04F BW_SEL C362 CR312 R321 R324 CR313 FL304 0.1uF 120K CFWC455G OUT 2 R361 R350 R358...

  • Page 128: Figure 4-41: Uhf (450-512 Mhz) Voltage Controlled Oscillator Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 4-51 C281 R245 100pF R242 C250 L243 C276 C286 C285 4.3pF 2.2uF 0.1uF 100pF RESONATOR C246 L273 R241 L281 100pF 18nH 390nH C242 4.3pF C272 1.1pF C273 0.1uF C243 L271 L242 R244 4.3pF 22nH...

  • Page 129: Figure 4-42: Uhf (450-512 Mhz) Synthesizer Schematic Diagram

    4-52 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 U211 TC7ST04FU U210 TC7ST04FU C296 C265 C257 100pF 0.1uF C258 .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 0.47uF C294 C293 4V_3.3V L202 100pF 0.47uF U248 2.2uH L203 LP2980 C277 C278 2.2uH...

  • Page 130: Figure 4-43: Uhf (450-512 Mhz) Transmitter Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 4-53 E101 BEAD R102 UNSWB+ L107 C123 33.47nH 10uF C114 100pF C172 0.1uF C109 L106 UNSWB+ 100pF 7.66nH TX_OUT R106 Microstrip Microstrip Q110 R172 C160 L112 L108 R191 C121 R175 56pF 4.22nH 100pF 390nH...

  • Page 131: Figure 4-44: Uhf (450-512 Mhz) Harmonic Filter Schematic Diagram

    4-54 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 ANT_BIAS SH100 C108 SHIELD L105 100pF 390nH TX_OUT HF SHIELD CR101 L104 L101 L102 12.39nH 12.39nH 12.39nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 6.2pF 13pF 6.2pF 4.7pF 3.3pF C188 R170...
  • Page 132 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 4-55 UHF (450–512 MHz) Radio Parts List (PCB Circuit Motorola Part Circuit Motorola Part Circuit Motorola Part Description Description Description 8486686Z02 rev. A) C181 NOT PLACED C278 2311049A57 10uF C352 2113743M24...
  • Page 133 4-56 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Motorola Part Circuit Motorola Part Circuit Motorola Part Circuit Motorola Part Description Description Description Description C435 2113743M24 100000pF C529 2113743N50 100pF L108 2479990A01 4.22nH Q320 4813824A10 RF NPN transistor...
  • Page 134 SH201 2680511Z01 Synthesizer Top Shield 8486686Z02 UHF B2 PC Board R314 0662057M79 1600 R416 0662057M98 SH202 2680511Z01 Synthesizer Bottom Shield * Motorola Depot Servicing only R315 0662057N01 R418 0662057M01 SH241 2604120G01 VCO Resonators Shield R320 NOT PLACED R419 0662057M67 SH242...

  • Page 135: Uhf Band 2 Circuit Board/Schematic Diagrams And Parts List (8415235H07)

    4-58 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) R410 C392 C521 C597 E407 E409 R437 32 SH323 C387 FL302 C389 C338 C349 VR501 C599...

  • Page 136: Figure 4-46: Uhf Band 2 (450-527 Mhz) Main Board Bottom Side: Pcb No. 8415235H07

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-59 C522 VR444 VR442 E404 SH322 R376 C437 L505 C523 E406 C334 R373 C350 R374 S502 R372 C383 R366 R368 R359 C359 R371 R378 FL401 C327 E401...

  • Page 137: Figure 4-47: Uhf Band 2 Controls And Switches Schematic Diagram (Pcb No. 8415235H07)

    4-60 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) RADIO_CODE S502_SWITCH_P5 FUSE_B+ E106 BLM18PG121SN1 B501 L505 BATTERY_CONTACT 390nH C597 C599 C598 DATA BATT_CODE 43pF 4.7pF 3.9pF E107 E102 BATT+ BLM18PG121SN1 F501 BLM21PG221SN1 CONN_J S502 BATT-...

  • Page 138: Figure 4-48: Uhf Band 2 Receiver Front End Schematic Diagram (Pcb No. 8415235H07)

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-61 DACRx C322 82pF C391 R342 100K 24pF L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 R309 C380 .01uF C321 L304 CR306 180nH 100pF C306...

  • Page 139: Figure 4-49: Uhf Band 2 Receiver Back End Schematic Diagram (Pcb No. 8415235H07)

    4-62 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) U302-1 TC7W04F C352 R345 R360 0.1uF U302-4 FL303 PWR_GND CFWC455E U302-3 OUT 2 TC7W04F C603 C387 24pF 24pF R355 100K U302-2 TC7W04F BW_SEL R324 CR312 CR313...

  • Page 140: Figure 4-50: Uhf Band 2 Synthesizer Schematic Diagram (Pcb No. 8415235H07)

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-63 U211 TC7ST04FU U210 TC7ST04FU C296 C265 C257 100pF 0.1uF C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 0.47uF C294 C293 4V_3.3V L202 100pF 0.47uF...

  • Page 141: Figure 4-51: Uhf Band 2 Voltage Controlled Oscillator Schematic Diagram (Pcb No. 8415235H07)

    4-64 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) C281 R245 100pF R242 C250 C286 4.3pF C276 C285 L243 0.1uF 2.2uF 100pF RESONATOR C246 L281 L273 R241 100pF 390nH 18nH C242 4.3pF C272 C273 1.1pF...

  • Page 142: Figure 4-52: Uhf Band 2 Harmonic Filter Schematic Diagram (Pcb No. 8415235H07)

    Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-65 ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 12.39nH 12.39nH 12.39nH RX_IN C101 C102 C103 C104 C106 C107 100pF 7.5pF...

  • Page 143: Figure 4-53: Uhf Band 2 Transmitter Schematic Diagram (Pcb No. 8415235H07)

    4-66 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) FUSE_B+ E101 R102 BEAD 0.075 L107 C114 C123 10uF 33.47nH 100pF C172 100pF C109 L106 100pF 7.66nH Microstrip Microstrip TX_OUT R106 R172 Q110 L109 C121 C160...
  • Page 144 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-67 UHF (450–527 MHz) Radio Parts List (PCB Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description 8415235H07) Part No. Part No. Part No.
  • Page 145 4-68 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C273 2113946K02 CAP CER CHP 0.10UF 16V...
  • Page 146 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-69 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C443 2113946B04 CAP CER CHP 0.10UF 10V...
  • Page 147 4-70 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. J400 0915064H03 CONNECTOR, ZIF (40 PINS)
  • Page 148 Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07) 4-71 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R241 0613952Q32 CER CHIP RES 20.0 OHM 5...
  • Page 149 0402 U248 5115019H01 3.3V REGULATOR IN R502 0613952Q55 CER CHIP RES 180 OHM 5 SOT23-5 PKG 0402 * Motorola Depot Servicing only U301 5115281H01 FM IF IC SA616 FROM R505 0613952R01 CER CHIP RES 10K OHM 5% PHILIPS 0402 U302...

  • Page 150: Vhf Band Section

    Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section 4-73 VHF Band Section VR444 VR440 C523 R410 E407 E409 C521 R437 C522 SH3203 C3202 Y3205 C3206 C3278 U405 C3225 TP3702 J400 R506 C3201 TP3701 L3200 U3221 R3741 Q505 R3208 C3208 C3741 R505 C3742...

  • Page 151: Figure 4-55: Vhf (136-174 Mhz) Main Board Bottom Side Pcb 8486473Z04 Rev. C

    4-74 Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section TP3502 R3571 R3572 R3573 SH403 C3568 C415 C3560 L3523 Q410 C430 R3566 C3569 C3526 C440 C3565 C414 L3812 L3813 C476 R436 R3565 C450 C451 C478 C3563 R3805 C3562 C410 R3832 R3564 J3501 C409...

  • Page 152: Figure 4-56: Vhf (136-174 Mhz) Controls And Switches Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section 4-75 UNSWB+ F501 PB505 mgc_comps SWITCH SWITCH S502 MECH_SWB+ B501 TAB2 BATT_CODE DATA EMER C502 C503 C535 L505 0.47uF 1000pF 390nH 390nH 0.47uF 1000pF VR506 100pF TAB1 100pF C520 VR439 6.8V 6.8V CR501 .01uF...

  • Page 153: Figure 4-57: Vhf (136-174 Mhz) Receiver Front End Schematic Diagram

    4-76 Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section R5_2_FE R5_3_FE C3320 82pF R3316 C3337 C3309 L3309 0.1uF 0.1uF .022uF 150nH R3321 R3322 UNSWB_PLUS_1_RX UNSWB_PLUS_2_RX UNSWB+ IF_1_FE L3304 C3308 470nH 330pF R3323 C3336 10uF C3307 R3315 100pF C3315 T3301 10pF R3310 2.7K...

  • Page 154: Figure 4-58: Vhf (136-174 Mhz) Receiver Back End Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section 4-77 Y3203 R3209 CFWC455E 1 IN R3212 U3221-1 TC7W04F C3225 0.1uF U3221-2 R3276 100K TC7W04F U3221-3 TC7W04F BW_SEL U3221-4 PWR_GND C3208 R3211 R3205 0.1uF Y3204 CFWC455G OUT 2 CR3202 CR3203 R3206 R3208 R3207 C3226...

  • Page 155: Figure 4-59: Vhf (136-174 Mhz) Synthesizer Schematic Diagram

    4-78 Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section U3711 mgc_comps 5V_1_FN 5V_2_FN SWB_PLUS_1_FN SWB+ (SOURCE) C3711 C3715 10uF 470pF L3701 C3713 C3712 390nH 2.2uF 0.1uF 2 K2 C3701 A2 5 .01uF A1 6 R3701 D3701 C3702 .01uF C3710 2.2uF C3703 .01uF...

  • Page 156: Figure 4-60: Vhf (136-174 Mhz) Voltage Controlled Oscillator Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section 4-79 Vdda Vdda_3_VCO VSF_1_VCO R5_1_VCO L3813 R3817 R3811 R3802 C3822 C3813 D3821 1000pF C3810 L3811 C3812 .01uF L3812 C3811 R3818 C3830 VCTRL_1_VCO C3825 10pF 100nH 0.1uF C3804 100nH 0.1uF 15pF 68pF VCTRL 0.1uF L3824...

  • Page 157: Figure 4-61: Vhf (136-174 Mhz) Transmitter Schematic Diagram

    4-80 Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section RESET UNSWB+ UNSWB+ UNSWB+ UNSWB+ DATA CLK RESET_1_PA 5V_2_PA C3571 470pF BIAS_TUNING C3570 330pF CLK_2_PA R3570 DATA_2_PA Q3561 CSX_2_PA UNSW_LPLUS_3_PA R3569 C3560 5.6K UNSWB_LPLUS_2_PA GND2 BPOS R3561 DATA U3502 H99S-4 TEMP RSET LM50C...
  • Page 158 Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section 4-81 VHF (136–174 MHz) Radio Parts List (PCB Motorola Part Motorola Part Motorola Part Circuit Ref Description Circuit Ref Description Circuit Ref Description 8486473Z04 rev. C) C3321 2113743L05 330pF C3552 2113743N44...
  • Page 159 4-82 Schematic Diagrams, Overlays, and Parts Lists: VHF Band Section Motorola Part Motorola Part Motorola Part Motorola Part Circuit Ref Description Circuit Ref Description Circuit Ref Description Circuit Ref Description C431 2113743N50 100pF C514 2113743N50 100pF L3312 2462587V28 33nH Q405...
  • Page 160 SH3301 2686081B01 Receiver Back-End Bottom Shield 8486473Z04 VHF PC Board R3723 0662057M50 R416 0662057M98 SH3302 2686081B05 Mixer Diode Shield * Motorola Depot Servicing only R3726 NOT PLACED R418 0662057M01 SH3303 2686081B06 Receiver Front-End Shield R3727 0662057N23 100K R419 NOT PLACED...

  • Page 161: Vhf Circuit Board/Schematic Diagrams And Parts List (Pcb 8415112H01)

    4-84 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4.10 VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) C523 VR440 R410 E407 E409 VR444 C521 R437 SH3203 C522 C3202 Y3205 C3206 C3278 U405 TP3702 J400...

  • Page 162: Figure 4-63: Vhf (136-174 Mhz) Main Board Bottom Side Pcb No. 8415112H01

    Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4-85 R373 R375 VR441 R370 R376 R374 C437 E405 L505 C3236 C390 R3209 E404 R3271 E406 S502 R3222 R3224 C3279 C3275 C3200 C3215 E402 FL401 CR3203 C3207 R415...

  • Page 163: Figure 4-64: Vhf Controls And Switches Schematic Diagram

    4-86 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) UNSWB+ F501 mgc_comps PB505 S502 MECH_SWB+ SWITCH B501 BATT_CODE EMER TAB2 DATA L505 C503 C535 C502 390nH 1000pF 1000pF 0.47uF 100pF VR506 VR439 TAB1 6.8V CR501 C520...

  • Page 164: Figure 4-65: Vhf Receiver Front End Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4-87 R5_2_FE R5_3_FE C3320 82pF R3316 C3337 C3309 L3309 .022uF 0.1uF 0.1uF 150nH R3321 R3322 UNSWB_PLUS_1_RX UNSWB_PLUS_2_RX UNSWB+ IF_1_FE L3304 C3308 470nH 330pF R3323 C3336 10uF C3307 R3315...

  • Page 165: Figure 4-66: Vhf Receiver Back End Schematic Diagram

    4-88 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) Y3203 R3209 CFWC455E 1 IN R3212 U3221-1 TC7W04F C3225 0.1uF U3221-2 R3276 100K TC7W04F U3221-3 TC7W04F BW_SEL U3221-4 PWR_GND C3208 R3211 R3205 0.1uF Y3204 CFWC455G OUT 2 CR3202...

  • Page 166: Figure 4-67: Vhf Synthesizer Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4-89 U3711 mgc_comps 5V_2_FN 5V_1_FN SWB_PLUS_1_FN (SOURCE) SWB+ C3711 C3715 10uF 470pF L3701 C3713 C3712 390nH 2.2uF 0.1uF 2 K2 C3701 A2 5 .01uF A1 6 R3701 C3702 D3701...

  • Page 167: Figure 4-68: Vhf Voltage Controlled Oscillator Schematic Diagram

    4-90 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) Vdda Vdda_3_VCO VSF_1_VCO R5_1_VCO L3813 R3817 R3811 R3802 C3822 C3813 D3821 1000pF C3810 L3811 C3812 R3818 .01uF L3812 C3811 C3830 VCTRL_1_VCO C3825 10pF C3804 100nH 100nH 0.1uF...

  • Page 168: Figure 4-69: Vhf Transmitter Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4-91 RESET UNSWB+ UNSWB+ DATA UNSWB+ UNSWB+ 5V_2_ P A RESET_1_ P A C3571 470pF BIAS_TUNING C3570 330pF CLK_2_ P A R3570 DATA_2_ P A Q3561 CSX_2_ P A UNSW_LP L US_3_ P A...
  • Page 169 4-92 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) VHF (136–174 MHz) Radio Parts List (PCB Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description 8415112H01) Part No. Part No. Part No. Circuit...
  • Page 170 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4-93 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C3504 2113945B04 CAP,FXD,0.022UF,+10%,- C3563...
  • Page 171 4-94 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. E406 2480640Z01 SURFACE MOUNT FERRITE...
  • Page 172 Schematic Diagrams, Overlays, and Parts Lists: VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8415112H01) 4-95 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R434 0613952Q61 CER CHIP RES 330 OHM 5%...
  • Page 173 CER CHIP RES 10K OHM 5% R3821 0613952Q57 CER CHIP RES 220 OHM 5% U400 5115012H01 IC,ADJ LOW DROPOUT,SM,POS 0402 0402 * Motorola Depot Servicing only R3571 0613952H51 CER CHIP RES 120 OHM 5% R3822 0613952Q41 CER CHIP RES 47.0 OHM 5% U404 5115062H01...

  • Page 174: Low Band Section

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-97 4.11 Low Band Section R410 E407 E409 R437 R305 C303 C309 FL301 C308 U301 L308 R310 R302 VR501 R303 C312 U405 TP201 R314 C310 R312 J400 L304 L306 L301 R230 C314 R317 C305...

  • Page 175: Figure 4-71: Low Band (29.7-42/35-50 Mhz) Main Board Bottom Side Pcb

    4-98 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section M300 M301 M400 C281 R318 C332 E405 C437 C331 C319 E404 U200 C333 E406 S502 L307 CR200 C307 C335 C337 C330 E402 VR203 E401 C328 FL401 R309 U303 R415 C336 C327 R308 C503...

  • Page 176: Figure 4-72: Low Band (30-50 Mhz) Controller Overall Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-99 Figure 4-72: Low Band (30–50 MHz) Controller Overall Schematic Diagram...

  • Page 177: Figure 4-73: Low Band (29.7-42/35-50 Mhz) Controller Microprocessor Schematic Diagram

    4-100 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section Vddd F1200 R457 R409 SCI_TX SCI_RX TP401 TP402 R418 1MEG Not placed Vddd Vddd Vddd UNSWB+ R437 C453 C423 C431 C449 100pF 100pF 100pF 100pF L411 390nH U410 3.3V ILC7062CM-33 L410 C456 R411...

  • Page 178: Figure 4-74: Low Band (29.7-42/35-50 Mhz) Controller Asfic Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-101 4V_3.3V R405 R402 SWB+ 1MEG 1MEG Not placed Not placed Q400 TP410 Vddd BATT_CODE TP406 UNSWB+ Vddd C400 C401 R401 .01uF C405 0.1uF R406 R427 2.7K 800 MHz only Vdda 100pF U400 LP2951ACMM-3.3...

  • Page 179: Figure 4-75: Low Band (29.7-42/35-50 Mhz) Controller Memory Schematic Diagram

    4-102 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section Figure 4-75: Low Band (29.7–42/35–50 MHz) Controller Memory Schematic Diagram...

  • Page 180: Figure 4-76: Low Band (29.7-42/35-50 Mhz) Controller Audio Pa Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-103 UNSWB+ OPT_SEL2 SWB+ C475 OPT_SEL1 10uF VR448 VR449 VR446 VR445 VR447 10.0V 10.0V 10.0V 10.0V 10.0V R473 R450 C471 C472 J403 100pF C442 C473 20 PIN CONN 100pF 0.1uF R423 100pF J403-1 C447...

  • Page 181: Figure 4-77: Low Band (29.7-42/35-50 Mhz) Interface Diagram

    4-104 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section C466 C404 100pF 100pF 800 MHz only C458 100pF R481 C459 100pF C526 C527 J400 .01uF .01uF 40-PINS CONNECTOR EXT_MIC J400-40 EXT_MIC VS_CS J400-39 VS_CS SWB+ J400-38 SW_B+ E400 Vddd J400-37 Vddd VS_AUDSEL...

  • Page 182: Figure 4-78: Low Band (29.7-42/35-50 Mhz) Controls And Switches Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-105 IF211 IF261 L200 BATT_CODE_1 BATT_CODE_2 390nH VR202 6.8V PB502 SWITCH IF280 IF228 IF278 SB1_1 SB1_2 IF227 IF277 C204 VR200 PTT_1 PTT_2 IF215 IF265 .01uF 6.8V RESET_1 RESET_3 IF210 IF260 EMER_1 EMER_3 PB503 SWITCH...

  • Page 183: Figure 4-79: Low Band (29.7-42/35-50 Mhz) Receiver Main Diagram

    4-106 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section S501 IF317 SWITCH RTA3 Software Package S501 - Freq. switch IF318 RTA0 Conventional/MDC 4080710Z01 - 16 position IF319 RTA1 IF320 5 Tone 4080710Z02 - continous RTA2 GND GND1 C511 C512 C513 C514 100pF...

  • Page 184: Figure 4-80: Low Band (29.7-42/35-50 Mhz) Receiver Front End Schematic Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-107 SH501 SH502 SHIELD SHIELD C516 C507 R505 0.1uF 30pF LP Filter Mixer L508 68nH R507 R509 SH500 R508 SHIELD -26.5 dBm T501 XFMR C535 C537 3.25 Vdc Preamp D501 3.9pF C522 L503 L504...

  • Page 185: Figure 4-81: Low Band (29.7-42/35-50 Mhz) Receiver Back End Schematic Diagram

    4-108 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section R318 L307 2.2uH 3 Vdc C319 10uF AGC PROCESSING C321 .022uF U302 TC7SU04F C320 0.22uF R306 R308 RSSI 1.3K L305 C323 390nH 1.5 Vdc R307 .022uF IF AMPLIFIER 5.6K R309 1.5 Vdc C307 0.1uF...

  • Page 186: Figure 4-82: Low Band (29.7-42/35-50 Mhz) Frequency Generation Unit Vco Diagram

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-109 0 Vdc TX CR204 U207 4.45 Vdc RX AUX3 R203 C218 0.15 Vdc RX .01uF 4.56 Vdc 3.25 Vdc TX 0 Vdc RX L202 C227 4.52 Vdc TX 1.35uH .01uF AUX2 C297 3.23 Vdc RX...

  • Page 187: Figure 4-83: Low Band (29.7-42/35-50 Mhz) Frequency Generation Unit Synthesizer Diagram

    4-110 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section C233 .01uF U204 ADP3300 5 IN SWB+ Y201 C232 75Z03 C234 0.47uF 0.47uF 17 MHz R219 2.7 V p-p 1.3 - 3.5 Vdc C236 C237 100pF CR211 2.7pF C286 C242 D210 47pF .01uF...

  • Page 188: Figure 4-84: Low Band (29.7-42/35-50 Mhz) Transmitter Diagram (Sheet 1 Of 2)

    Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-111 IF101 R102 BATT_B+_4 0.075 IF104 C127 C126 C129 10uF .01uF IF105 .01uF DATA IF106 R114 470K E100 BEAD VAR3 RFIN C137 IF107 1000pF RESET U102 VAR1 H99S-4 C124 .01uF VLIM C138 R129 R119...

  • Page 189: Figure 4-85: Low Band (29.7-42/35-50 Mhz) Transmitter Diagram (Sheet 2 Of 2)

    4-112 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section R101 C114 C110 C106 C144 .01uF 75pF 47pF 62pF L104 2.2uH J101 RF_JACK C145 D100 C146 L106 L107 L105 L102 L101 L100 90nH 137nH 110nH .01uF .01uF C118 GND 4 C123 C122 C121...
  • Page 190 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section 4-113 Low Band (29.7–42/35–50 MHz) Radio Parts Motorola Part Motorola Part Motorola Part Circuit Ref Description Circuit Ref Description Circuit Ref Description List C205 2113743L41 0.01uF C311 2113743N29 13pF C429 2113743M24 0.1uF...
  • Page 191 4-114 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section Motorola Part Motorola Part Motorola Part Motorola Part Circuit Ref Description Circuit Ref Description Circuit Ref Description Circuit Ref Description C514 2113743N50 100pF L100 2460591X13 120nH Q100 4813828A08 R236 0662057M44...
  • Page 192 6.8V Zener SH100 2686076A01 Shield Y201 4805875Z03 Crystal Oscillator SH200 2685709B02 Shield 8485658Z05 Low Band PCB SH201 2680511Z01 Shield ** Motorola depot servicing only SH202 2680511Z01 Shield * Range 2 only SH203 2686079A01 Shield SH300 2680516Z01 Shield SH301 2680508Z01 Shield SH302...
  • Page 193 4-116 Schematic Diagrams, Overlays, and Parts Lists: Low Band Section Notes...

  • Page 194: Appendix A Replacement Parts Ordering

    Chart in the front of this manual, read the Transceiver Board or VOCON Board note, and include the proper information with your order. Motorola Online Motorola Online users can access our online catalog at https://www.motorola.com/businessonline To register for online access, please call 1-800-814-0601.

  • Page 195: Telephone Orders

    Replacement Parts Ordering: Telephone Orders Telephone Orders Customer Care and Services Division* (United States and Canada) 7:00 AM to 7:00 PM (Central Standard Time) Monday through Friday (Chicago, U.S.A.) 1-800-422-4210 (International Orders) 1-847-538-8023 U.S. Federal Government Markets Division (USFGMD) 1-800-826-1913 Federal Government Parts - Credit Cards Only 8:30 AM to 5:00 PM (Eastern Standard Time) Fax Orders Customer Care and Services Division*...
  • Page 197 Motorola, Inc. 1301, E. Algonquin Rd. Schaumburg, IL 60196-1078, U.S.A. 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. 2008 All rights reserved.

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