Motorola GM1200E Service Manual
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Motorola GM1200E Service Manual

Motorola GM1200E Service Manual

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See also: User Manual
GM1200E
Mobile Radio
Detailed Service Manual
68P64115B15
European Publications Department (RPG) Fleet, Hampshire, England
Issue: July 1998

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Summary of Contents for Motorola GM1200E

  • Page 1 GM1200E Mobile Radio Detailed Service Manual 68P64115B15 European Publications Department (RPG) Fleet, Hampshire, England Issue: July 1998...
  • Page 3 Cautions and Warnings CAUTION ELECTROSTATIC SENSITIVE DEVICES PRECAUTIONS SHOULD BE TAKEN TO MINIMIZE THE RISK OF DAMAGE BY ELECTROSTATIC DISCHARGE TO ELECTROSTATIC SENSITIVE DEVICES (ESDs). ANY DEVICES EMPLOYING METAL OXIDE SILICON (MOS) TECHNOLOGY ARE PARTICULARLY SUSCEPTIBLE. CIRCUIT DIAGRAMS MARKED WITH THE ABOVE SYMBOL INDICATE ELECTRONIC CIRCUITS (PECs) FOR WHICH ESD HANDLING PRECAUTIONS ARE NECESSARY.
  • Page 4 Cautions and Warnings...
  • Page 5 Cautions and Warnings WARNING SAFETY WARNINGS THE ELECTRICAL POWER USED IN THIS EQUIPMENT IS AT A VOLTAGE HIGH ENOUGH TO ENDANGER LIFE. BEFORE CARRYING OUT MAINTENANCE OR REPAIR, PERSONS CONCERNED MUST ENSURE THAT THIS EQUIPMENT IS ISOLATED FROM THE ELECTRICAL SUPPLY AND TESTS ARE MADE TO ENSURE THAT ISOLATION IS COMPLETE.
  • Page 6 Cautions and Warnings...
  • Page 7 Contents Detailed Service Manual Contents Chapter Introduction Gives a brief introduction into the manual and the service policy. Control Head - Level 3 Information Provides level 3 service information on the Display/Keypad Control Head (K6) detailed in the following chapters: Introduction/Theory of Operation PCB/Schematic Diagrams and Parts Lists UHF/VHF Radio - Level 3 Information...
  • Page 8 Contents viii Detailed Service Manual...

  • Page 9: Paragraph Page

    Table of Contents Chapter 1 Introduction Table of Contents Paragraph Page Introduction ....................1 Scope of Manual ..................1 How to Use This Manual ................1 Warranty and Service Support ..............1 Warranty Period................... 1 After Warranty Period .................. 2 Piece Parts ....................
  • Page 10 Table of Contents 1-ii Introduction...

  • Page 11: Scope Of Manual

    In instances where the product is covered under a "return for replacement" or "return for repair" warranty, a check of the product should be performed prior to shipping the unit back to Motorola. To ensure the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty.
  • Page 12 Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, it is available from Motorola Radio Parts and Service Group (RPSG). If a generic part is listed or only a part description is listed, the part is not normally available from Motorola.
  • Page 13 Table of Contents Chapter 2 Control Head - Level 3 Information Table of Contents Chapter Introduction/Theory of Operation PCB/Schematic Diagram and Parts List Control Head - Level 3 Information...
  • Page 14 Table of Contents 2-ii Control Head - Level 3 Information...

  • Page 15: Table Of Contents

    Table of Contents Chapter 2.1 Introduction/Theory of Operation Table of Contents Paragraph Page Overview ..................... 1 Exploded View Diagram ................2 Theory of Operation .................. 2 General ......................2 Power Supplies.................... 3 Voltage Regulator Circuit................3 Power On / Off ..................... 3 Microprocessor Circuit .................
  • Page 16 Table of Contents 2.1-ii Introduction/Theory of Operation...

  • Page 17: Introduction

    Overview Overview 128 Channel, Keypad/Display Radio Control Head (Model K6) MENU The features of the radio control head are as follows: On/Off Button Rocker type Volume Up/Down Control Volume Level Indicators (RSSI) Backlit Liquid Crystal Display (LCD) with display icons to show call progress and status Up/Down scrolling keys for the display Left/Right scrolling keys for the display 3 x 4 CCITT Keypad...

  • Page 18: Introduction/Theory Of Operation

    - numerical information e.g. channel number, select code, call address name. To control the LEDs and the LCD, and to communicate with the host radio, the control head uses the Motorola 68HC11E9 or 68HC11E20 (dependent on the used character set) microprocessor.

  • Page 19: Introduction/Theory Of Operation

    Theory of Operation Power Supplies The power supply to the control head is taken from the host radio FLT A+ voltage via connector J0901 pin 2. The voltage FLT A+ is at battery level and is used for the LEDs, the back light, to power up the radio via On / Off button and to supply the voltage regulator circuit.

  • Page 20: Microprocessor Circuit

    Theory of Operation Microprocessor Circuit The control head uses the Motorola 68HC11E9 or 68HC11E20 (dependent on the used character set) microprocessor ( µ P) (U0901) to control the LEDs, the LCD and to communicate with the host radio. RAM and ROM are contained within the microprocessor itself.

  • Page 21: Keypad Keys

    Theory of Operation When the host radio needs to communicate to the control head µ P it brings the control head select line (CNTL HD CE) to a logic ‘0’ and then sends the proper data and clock signals. After the data has been sent the control head select line is returned to a logic ‘1’.

  • Page 22: Microphone Connector

    Theory of Operation The display driver is fixed on the flex which connects the display to the PC board. The driver contains a data interface to the µ P, an LCD segment driver, an LCD power circuit, an oscillator, data RAM and control logic.

  • Page 23: Pcb/Schematic Diagrams And Parts Lists

    Table of Contents Chapter 2.2 PCB/Schematic Diagram and Parts List Table of Contents Description Page Display/Keypad Radio Control Head (K6) - Diagrams and Parts Lists PCB Layout Top Side ........... . 1 PCB Layout Bottom Side .
  • Page 24 Table of Contents 2.2-ii PCB/Schematic Diagram and Parts List...

  • Page 25: Uhf/Vhf Radio - Level 3 Information

    Table of Contents Chapter 3 UHF/VHF Radio - Level 3 Information Table of Contents Chapter Introduction/Theory of Operation PCB/Schematic Diagrams and Parts Lists UHF/VHF Radio - Level 3 Information...
  • Page 26 Table of Contents 3-ii UHF/VHF Radio - Level 3 Information...
  • Page 27 Table of Contents Chapter 3.1 Introduction/Theory of Operation Table of Contents Paragraph Page Introduction ....................1 Open Controller ..................1 General ......................1 Voltage Regulators ..................1 Electronic On/Off ..................2 Emergency....................2 Mechanical On/Off ..................3 Ignition ......................3 Hook RSS ....................

  • Page 28: Paragraph Page

    Table of Contents Paragraph Page Transmit Signalling Circuits ..............12 Sub-audible Data (PL/DPL) ............... 12 High Speed Data ..................13 Dual Tone Multiple Frequency (DTMF) Data..........13 Receive Audio Circuits ................14 Squelch Detect ..................14 Audio Processing and Digital Volume Control ........... 15 Audio Amplification Speaker (+) Speaker (-) ..........
  • Page 29 Table of Contents Paragraph Page VHF (136-174MHz) SPECIFIC CIRCUIT DESCRIPTION 11.0 Receiver Front-End ................. 25 11.1 Front-End Band-Pass Filter and Pre-Amplifier.......... 25 11.2 Mixer and Intermediate Frequency (IF) Section........26 11.3 IF IC (U5201) .................... 26 12.0 Transmitter Power Amplifier (PA) 5-25W ..........26 12.1 Power Controlled Stage ................
  • Page 30 Table of Contents 3.1-iv Introduction/Theory of Operation...

  • Page 31: Introduction

    It consists of a microprocessor, support memory, support logic, signal MUX ICs, the On/Off circuit, and general purpose Input/Output circuitry. The controller uses the Motorola 68HC11K1 microprocessor (U0101). In addition to the microprocessor, the controller has 3 external memory devices. The 3 memory devices consist of a 32kbyte SRAM (U0103), a 512kbyte FLASH EEPROM (U0102), and a 16kbyte EEPROM (U0104).

  • Page 32: Electronic On/Off

    Open Controller Regulator U0601 is used to generate the 9.3 volts required by some audio circuits, the RF circuitry and power control circuitry. Input and output capacitors (C0601-C0603 and C0604/C0605) are used to reduce high frequency noise. R0602/R0603 set the output voltage of the regulator. If the voltage at pin 1 is greater than 1.3 volts the regulator output decreases and if the voltage is less than 1.3 volts the regulator output increases.

  • Page 33: Mechanical On/Off

    Open Controller While EMERGENCY CONTROL is low, SW B+ is on, the microprocessor starts execution, reads that the emergency input is active through the voltage level of EMER IGN SENSE, and sets the B+ CONTROL output of the ASFIC pin B4 to a logic high. This high will keep Q0611 switched on. This operation allows a momentary press of the emergency switch to power up the radio.

  • Page 34: Microprocessor Clock Synthesizer

    Open Controller Microprocessor Clock Synthesizer The clock source for the microprocessor system is generated by the ASFIC (U0201). Upon power- up the synthesizer U5701 (UHF) / U3701 (VHF) / U2701 (MB) generates a 2.1 MHz waveform that is routed from the RF section (via C0202) to the ASFIC (on U0201-E1) For the main board controller the ASFIC uses 2.1MHz as a reference input clock signal for its internal synthesizer.

  • Page 35: Speb Serial Interface

    Open Controller When the control head with graphical display wants to communicate to the µ P it brings request line ANALOG 2 (J0101-11) to a logic “0“. The µ P reads this line via one of the analogue to digital converters (U0101-48) and then starts communication by activating the control head select line (LED CHT CE) via U0105-9 and J0101-12, sending the clock signal via U0106-3 and J0101-5 and sending data via U0106-2 and J0101-6 or receiving data via J0101-10 and gate U0171.

  • Page 36: General Purpose Input/Output

    Open Controller 2.11 General Purpose Input/Output The Controller provides one general purpose line (GP I/O) available on the accessory connector J0400-12 to interface to external options. The software and the hardware configuration of the radio model defines the function of the port. The port uses an output transistor (Q0432) controlled by µ P via ASFIC port GCB3 (pin B3).
  • Page 37 Open Controller Specifically, the logic high levels should be between 4.8 and 5.0 V, and the logic low levels should be between 0 and 0.2 V. No other intermediate levels should be observed, and the rise and fall times should be <30 ns. The low-order address lines (A0-A7) and the data lines (D0-D7) should be toggling at a high rate, i.e., you should set your oscilloscope sweep to 1 us/div.

  • Page 38: Flash Electronically Erasable Programmable Memory (Flash Eeprom)

    Open Controller 2.13 FLASH Electronically Erasable Programmable Memory (FLASH EEPROM) The 512 KByte FLASH EEPROM (U0102) contains the radio operating software. This software is common to all open architecture radios within a given model type. This is, as opposed to the codeplug information stored in EEPROM (U0104) which could be different from one user to another in the same company.

  • Page 39: Static Random Access Memory (Sram)

    General 2.15 Static Random Access Memory (SRAM) The SRAM (U0103) contains temporary radio calculations or parameters that can change very frequently, and which are generated and stored by the software during its normal operation. The information is lost when the radio is turned off. The device allows an unlimited number of write cycles.

  • Page 40: Transmit Audio Circuits

    Transmit Audio Circuits Transmit Audio Circuits Refer to Figure 3-1 for reference for the following sections. Mic Input Path The radio supports two distinct microphone paths known as internal (from Control Head) and external mic (from accessory connector J0400-2) and an auxiliary path (FLAT TX AUDIO). The microphones used for the radio require a DC biasing voltage provided by a resistive network.

  • Page 41: External Mic Path

    Transmit Audio Circuits External Mic Path The external microphone signal enters the radio on accessory connector J0400 pin 2 and connects to the standard microphone input through R0413. Components R0414 - R0416, C0413, C0414, C0417 are not used. PTT Sensing and TX Audio Processing Mic PTT coming from the Control Head via connector J101-4 is sensed by the µP U0101 pin 22.

  • Page 42: Transmit Signalling Circuits

    Transmit Signalling Circuits Transmit Signalling Circuits Refer to Figure 3-2 for reference for the following sections. From a hardware point of view, there are three types of signalling: Sub-audible data (PL/DPL/Connect Tone) that gets summed with transmit voice or signalling, DTMF data for telephone communication in trunked and conventional systems, and Audible signalling including Select 5, MPT-1327, MDC, High speed Trunking.

  • Page 43: High Speed Data

    Transmit Signalling Circuits High Speed Data High speed data refers to the 3600 baud data waveforms, known as Inbound Signalling Words (ISWs) used in a trunking system for high speed communication between the central controller and the radio. To generate an ISW, the µP first programs the ASFIC (U0201) to the proper filter and gain settings.

  • Page 44: Receive Audio Circuits

    Receive Audio Circuits Receive Audio Circuits Refer to Figure 3-3 for reference for the following sections. ACCESSORY CONNECTOR FLT RX AUDIO J0400 AUDIO SPKR + EXTERNAL SPKR - U0401 SPEAKER SPKR+ SPKR- CONTROL HEAD CONNECTOR ATTEN. INTERNAL SPEAKER J0101 HANDSET AUDIO UNIV IO RX AUD OUT...

  • Page 45: Audio Processing And Digital Volume Control

    Receive Audio Circuits CH ACT is routed to the µP pin 40 while SQ DET adds up with LOCK DET, weighted by resistors R0113, R0114, and is routed to one of the µP´s ADC inputs U0101-43. From the voltage weighted by the resistors the µP determines whether SQ DET, LOCK DET or both are active.

  • Page 46: Handset Audio

    Receive Audio Circuits The audio PA is enabled via AUDIO PA ENABLE signal from the ASFIC (U0201-B5). When the base of Q0401 is low, the transistor is off and U0401-8 is high, using pull up resistor R0406, and the Audio PA is ON.

  • Page 47: Receive Signalling Circuits

    Receive Signalling Circuits Receive Signalling Circuits Refer to Figure 3-4 for reference for the following sections. LOW SPEED HIGH SPEED CLOCK CLOCK DATA FILTER LIMITER AND DEEMPHASIS MICRO CONTROLLER ASFIC DET AUDIO U0201 U0101 DISCRIMINATOR AUDIO FROM RF SECTION (IF IC) FILTER LIMITER LOW SPEED...

  • Page 48: Uhf (403-470Mhz) Specific Circuit Description

    Receiver Front-End The allowable internal alert tones are 304, 608, 911, and 1823Hz. In this case a code contained within the SPI BUS load to the ASFIC sets up the path and determines the tone frequency, and at what volume level to generate the tone. (It does not have to be related to the voice volume setting). For external alert tones, the µP can generate any tone within the 100-3000Hz audio band.

  • Page 49: Mixer And Intermediate Frequency (If) Section

    Transmitter Power Amplifier (PA) 5-25W Mixer and Intermediate Frequency (IF) Section The signal coming from the front-end is converted to the first IF (45.1 MHz) using a double balanced schottky diode mixer (D5401). Its ports are matched for incoming RF signal conversion to the 45.1MHz IF using low side injection.

  • Page 50: Pa Stages

    Transmitter Power Amplifier (PA) 5-25W The collector current of Q5510 causes a voltage drop across the resistors R5623 and R5624. Transistor Q5612 adjusts the voltage drop across R5621 controlled through the PA control line (PWR CNTL). The current source Q5621 adjusts the collector current of Q5510 by modifying its base voltage via (R5502, L5501) until the voltage drop across R5623 and R5624 plus V (0.6V) equals the voltage drop across R5621 plus V...

  • Page 51: Antenna Switch

    Transmitter Power Amplifier (PA) 5-25W Antenna Switch The antenna switch is switched synchronously with the K9V1 voltage and feeds either the antenna signal coming through the harmonic filter to the receiver or the transmitter signal coming from the PA to the antenna via the harmonic filter. In transmit mode, this K9V1 voltage is high and biases Q5520 and along with the RF signal from Q5510 allows a collector current to be drawn.
  • Page 52 Transmitter Power Amplifier (PA) 5-25W The ALC loop regulates power by adjusting the PA control line PWR CNTL to keep the forward power voltage PWR DETECT at a constant level. Opamp U0701-2 and resistors R0701 to R0703 and R0731 subtract the negative PWR DETECT voltage from the PA PWR SET D/A output U0731 pin 2.

  • Page 53: Frequency Synthesis

    Frequency Synthesis 10.0 Frequency Synthesis The complete synthesizer subsystem consists of the Reference Oscillator (Y5701 or U5702), the Fractional-N synthesizer (U5701), the Voltage Controlled Oscillator (Q5741), the RX and TX buffer stages (Q5751, Q5771, Q5781) and the feedback amplifier (Q5791). 10.1 Reference Oscillator The Reference Oscillator (Y5702) contains a temperature compensated crystal oscillator with a...

  • Page 54: Voltage Controlled Oscillator (Vco)

    Frequency Synthesis 10.3 Voltage Controlled Oscillator (VCO) The Voltage Controlled Oscillator (VCO) is formed by the colpitts oscillator FET Q5741. Q5741 draws a drain current of 12 mA from the FRAC-N IC super filter output. The oscillator frequency is half of the desired frequency and mainly determined by L5743, C5742, C5743, C5745 - C5748 and varactor diodes D5741 / D5742.
  • Page 55 Receiver Front-End To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer the magnitude of the loop current is increased by enabling the IADAPT line (U5701-31) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transient of the FRACN CE line.
  • Page 56 Transmitter Power Amplifier (PA) 5-25W A second two pole varactor tuned bandpass filter provides additional filtering to the amplified signal. The dual varactor diode D3304 is controlled by the same signal which controls the pre-selector filter. If the radio is configured for a base station application, R3318 is not placed and TP3301 and TP3302 are shorted.
  • Page 57 Transmitter Power Amplifier (PA) 5-25W 12.1 Power Controlled Stage The first stage (Q3511) amplifies the RF signal from the VCO (line EXCITER PA) and controls the output power of the PA. The output power of the transistor Q3511 is proportional to its collector current which is adjusted by a voltage controlled current source consisting of Q3641, (Q3643-T3 only) and Q3642.
  • Page 58 Transmitter Power Amplifier (PA) 5-25W 12.4 Antenna Switch The antenna switch is switched synchronously with the K9V1 voltage along with the voltage PWR CNTL signal and feeds either the antenna signal coming through the harmonic filter to the receiver or the transmitter signal coming from the PA to the antenna via the harmonic filter. In transmit mode, this PWR CNTL is above 1 V and biases Q3511 through Q3641 and Q3642 to allow a collector current to be drawn.
  • Page 59 Transmitter Power Amplifier (PA) 5-25W The ALC loop regulates power by adjusting the PA control line PWR CNTL to keep the forward power voltage PWR DETECT at a constant level. Opamp U0701-2 and resistors R0701 to R0703 and R0731 subtract the negative PWR DETECT voltage from the PA PWR SET D/A output U0731 pin 2.
  • Page 60 Frequency Synthesis 13.0 Frequency Synthesis The complete synthesizer subsystem consists of the Reference Oscillator (Y3701 or Y3702), the Fractional-N synthesizer (U3701), the Voltage Controlled Oscillator (Q3741, Q3751), the RX and TX buffer stages (Q3760, Q3770, Q3780) and the feedback amplifier (Q3790). 13.1 Reference Oscillator The Reference Oscillator (Y3702) contains a temperature compensated crystal oscillator with a...
  • Page 61 Frequency Synthesis In TX mode AUX3 is about 5V DC and Q3742 is switched off. Q3752 is switched on and enables a current flow from the source of FET Q3741 while Q3751 is switched off. When switched on the FETs draw a drain current of 8 mA from the FRAC-N IC super filter output.
  • Page 62 Frequency Synthesis LOCK DET adds up with signal SQ DET, weighted by resistors R0113, R0114, and is routed to one of the µP´s ADCs input U0101-43. From the voltage weighted by the resistors the µP determines whether SQ DET, LOCK DET or both are active. In order to modulate the PLL the two spot modulation method is utilized.
  • Page 63 Table of Contents Chapter 3.2 PCB/Schematic Diagrams and Parts Lists Table of Contents Description Page PCB Overlays UHF (403-430MHz)PCB 8486072B01_T1 Layout Top Side ............1 Layout Bottom Side .
  • Page 64 Table of Contents Description Page RX-FE Schematic Diagram ..........21 Parts List.
  • Page 65 R0853 R0944 C0895 VR0902 R0941 R0855 TP0951 R0942 C0928 R0891 R0927 C0955 MOTOROLA 1998 8486015B05-T3 VR0904 VR0903 VR0906 Q0891 D0891 Bottom Side S ld 8486015B05 T3 GEPD5549 3 Display/Keypad Radio Control Head (K6) PCB No. 8486015B05_T3 PCB/Schematic Diagram and Parts List...
  • Page 66 Q0932 C0947 R0959 .1uF 390K TP0954 PB0931 C0936 470pF ON/OFF C0944 R0944 .1uF R0937 4.7K C0948 FLT_A+ .1uF MOTOROLA D0931 TP0937 R0945 C0945 ON_OFF_CONTROL .1uF Graphic Display 0102726B24 C0949 C0937 R0938 .1uF 470pF 4.7K Controlhead T sheet 1 GEPD5585-1 Display/Keypad Radio Control Head Schematic Diagram 1 of 2 2.2-2...
  • Page 67 Display/Keypad Radio Control Head Schematic Diagram Q0831 FLT_A+ D0801 D0805 D0809 D0813 D0817 D0821 D0825 D0829 R0831 R0801 R0802 R0803 R0804 R0805 R0806 R0807 200K 200K 200K 200K 200K 200K 200K 200K 200K 200K 200K 200K 3.3K 3.3K D0802 D0806 D0810 D0814 D0818...
  • Page 68 Display/Keypad Radio Control Head Schematic Diagram Display/Keypad Radio Control Head Circuit Motorola Circuit Motorola Circuit Motorola Parts List Description Description Description Part No. Part No. Part No. D0851- 4805729G75 LED GREEN HP R0851 0662057A73 10k 1/16W 5% R0924 0662057A89 47k 1/16W 5%...
  • Page 69 UHF (403-470MHz) Main Board Top Side PCB No. 8486072B01_T1 R0241 R0240 Associated Schematics J0101 C5229 C5230 Q0141 Q0123 Q0121 C5238 R5703 R5223 C5726 R5724 R0142 R0126 R0130 C5801 C0121 R5222 UHF PCB : 8486072B01_T1 Page VR0102 Q0124 R5726 U0105 R5723 C5707 R0128 Y5702...
  • Page 70 UHF (403-470MHz) Main Board Bottom Side PCB No. 8486072B01_T1 C0141 R0220 R5225 VR5701 C5718 E5701 R0161 E5703 C5231 R5216 C5729 TP5703 C0242 C0204 C5233 C5237 J0103 C5700 D0200 VR0161 U5701 C5224 C0200 C5720 R0200 U5201 TP5702 C5239 C5216 Y5701 C0136 TP0133 C5236 C0224...
  • Page 71 UHF (403-470MHz) Main Board Bottom Side PCB No. 8486072B01_T1 R0241 R0240 Associated Schematics C5229 Q0141 Q0123 Q0121 J0101 C5238 E3701 C3726 R3724 R3703 R0126 R0130 C3801 R0142 C0121 R5222 VHF PCB : 8486069B01_T1 Page VR0102 Q0124 C3707 R3723 R0128 C3727 C5226 C0232 C0157...
  • Page 72 UHF (403-470MHz) Main Board Bottom Side PCB No. 8486072B01_T1 C0141 R5225 R0220 C3718 VR3701 E3702 R0161 R5216 E3703 TP3703 C0242 C0204 C5237 C5233 C5231 J0103 D0200 VR0161 C5227 C5224 U3701 C3720 C0200 R0200 C5239 C5216 Y3701 C0210 TP0133 C5236 C0224 U5201 C0228 C0211...
  • Page 73 BUS+ C0112 R0118 .01uF C0172 C0151 U0172-2 U0106-5 C0121 C0150 .1uF .1uF PWR_GND PWR_GND 0102726B20 GM1200E .01uF 470pF CONTROLLER SHEET 1 BUS+ GEPD5580 SCI_TX REAR_PTT R0121 USW_+5V_CL from/to sheet 2 4.7K Controller Schematic Diagram 1 of 3 PCB/Schematic Diagrams and Parts Lists...

  • Page 74: Controller Parts List

    Controller Schematic Diagram Controller Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. C0158 2113741F17 CAP CHIP 470pF 50V C0234 2113743E20 CAP CHIP 100nF 16V D0101 4813833C02 DUAL SOT MMBD6100 Circuit Motorola Description Part No.
  • Page 75 R0205 Q0200 10uF .01uF R0223 L0200 C0200 33000nH 47.5K .1uF C0227 R0206 47uF C0211 .100uF 0102726B20 GM1200E C0210 .022uF C0254 U0251-3 U0202-5 C0251 .1uF CONTROLLER SHEET2 PWR_GND .1uF PWR_GND EXT_MIC GEPD5581 Controller_Audio Schematic Diagram 2 of 3 PCB/Schematic Diagrams and Parts Lists...
  • Page 76 Controller_Audio Schematic Diagram Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. Q0411 4880052M01 TSTR NPN DRLNGTN R0126 0662057A73 10k 1/16W 5% R0223 0662057R92 47.5k .1W 1% R0441 0662057A65...
  • Page 77 5.6V C0403 .01uF C0425 R0425 .1uF 470pF C0418 INT_SPKR- FLAT_TX_AUDIO R0426 INT_SPKR+ .47uF VR0426 C0426 R0413 R0417 0102726B20_IO 470pF 100K GM1200E C0415 C0413 VR0415 R0414 R0415 R0416 470pF C0419 EXT_MIC 47uF R0418 .1uF FLT_RX_AUDIO C0414 C0417 .0022uF 10uF C0427 VR0427...
  • Page 78 Controller_IO Schematic Diagram Circuit Motorola Description Part No. VR0426 4813830A27 14V 5% 225MW VR0427 4813830A27 14V 5% 225MW VR0431 4813830A27 14V 5% 225MW VR0441 4813830A40 SOC23 AUTO SDN VR0451 4813830A15 5.6V 5% 225mW 3.2-10 PCB/Schematic Diagrams and Parts Lists...
  • Page 79 Supply Voltage Schematic Diagram USW_+5V D0621 FLT_A+_8 R0621 USW_+5V_CL FLT_A+ 2.2K VR0621 C0621 C0622 5.1V 470pF 470pF 47uF 47uF U0601 LM2941T R0606 9V3_8 9V3_1_8 VOUT R0601 R0631 D0631 U0631 ON_OFF* LP2951CM LP2951CM C0604 C0605 R0602 7.5K 7.5K 33uF .1uF INPUT OUTPUT C0601 C0602...

  • Page 80: Supply Voltage Parts List

    Supply Voltage Schematic Diagram Supply Voltage Circuit Motorola Description Parts List Part No. R0642 0662057A73 10k 1/16W 5% Circuit Motorola Description Part No. U0601 5105625U25 IC 9.3V REG 2941 U0631 5105469E65 IC VLTG REGLTR LP2951C C0601 2113741F17 470pF 50V VR0621 4813830A14 5.1V 5% 225mW...
  • Page 81 UHF (403-470MHz) Power Control Schematic Diagram VAG_7 (CNTL) C0705 C0711 R0705 R0712 .0047uF R0702 39000pF PWR_DETECT_7 R0701 (PA) PWR_DETECT R0704 U0701-2 PWR_CNTL_7 U0701-4 R0711 PWR_CNTL (PA) MC3403 C0702 C0701 MC3403 100pF C0713 100pF 100pF C0712 R0716 R0717 R0703 43pF 560K R0714 U0701-3 C0716...

  • Page 82: Power Control Parts List

    UHF (403-470MHz) Power Control Schematic Diagram Power Control Circuit Motorola Description Parts List Part No. R0715 0662057A81 22k 1/16W 5% Circuit Motorola Description Part No. R0716 0662057B16 560k 1/16W 5% R0717 0662057A85 33k 1/16W 5% C0701 2113740F51 100pF 5% 50V...
  • Page 83 UHF (403-470MHz) Power Amplifier 5-25W Schematic Diagram L5600 FLT_A+_1 FLT_A+ J5601 L5601 D5601 C5600 C5601 C5604 C5602 C5603 330pF 10uF 10uF 100pF .001uF C5531 C5548 .01uF .01uF BIAS_VLTG_1 R5541 BIAS_VLTG L5532 L5542 TP5201 C5530 C5532 C5622 C5547 K9V1_1 R5623 R5624 K9V1 100pF .01uF...
  • Page 84 UHF (403-470MHz) Power Amplifier 5-25W Schematic Diagram Power Amplifier 5-25W Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. C5602 2113740F51 100pF 5% 50V L5600 2484657R01 Ferrite Bead R5617 0680194M01 10 1W 5%...
  • Page 85 UHF (403-470MHz) Synthesizer Schematic Diagram Not Used UHF (403-470MHz) Synthesizer Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-17...

  • Page 86: Synthesizer Parts List

    UHF (403-470MHz) Synthesizer Schematic Diagram Synthesizer Circuit Motorola Description Parts List Part No. R5705 0662057A89 47k 1/16W 5% Circuit Motorola Description Part No. R5708 0662057A01 10 1/16W 5% C5700 2113743K15 100nF 16V R5711 0662057A15 39 1/16W 5% C5701 2113740F51 100pF 5% 50V...
  • Page 87 UHF (403-470MHz) Voltage Controlled Oscillator Schematic Diagram UHF (403-470MHz) Voltage Controlled Oscillator Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-19...
  • Page 88 UHF (403-470MHz) Voltage Controlled Oscillator Schematic Diagram Voltage Controlled Oscillator Circuit Motorola Circuit Motorola Parts List Description Description Part No. Part No. C5785 2113741F49 10nF 50V R5742 0662057A97 100k 1/16W Circuit Motorola Description Part No. C5786 2113740F18 4.3pF 5% R5743...
  • Page 89 UHF (403-470MHz) RX-FE Schematic Diagram 9V3_2 R5302 RX_IF_2 L5401 TP5301 RX_IF C5331 C5310 C5311 470nH 330pF C5307 330pF .0033uF TP5302 9V3_2_3 .0033uF R5311 R5401 4.7K R5317 Q5302 L5302 L5402 C5404 470nH 150nH 82pF R5318 R5312 C5302 C5303 C5313 C5314 R5308 L5406 L5408 L5407...
  • Page 90 UHF (403-470MHz) RX-FE Schematic Diagram RX-FE Circuit Motorola Description Parts List Part No. C5402 2113740F32 16pF 5% 50V Circuit Motorola Description Part No. C5403 2113740F32 16pF 5% 50V C5300 2113740F42 43pF 5% 50V C5404 2113740F49 82pF 5% 50V C5301 2113740F11 2.2pF 5% 50V...
  • Page 91 UHF (403-470MHz) RX-IF Schematic Diagram UHF (403-470MHz) RX-IF Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-23...
  • Page 92 UHF (403-470MHz) RX-IF Schematic Diagram RX-IF Circuit Motorola Circuit Motorola Description Description Parts List Part No. Part No. C5239 2113740F44 51pF 5% 50V Y5202 9102651Y02 XTAL FLTR 45.1MHz Circuit Motorola Description 12.5KHz 60dB Part No. D5201 4880154K03 DUAL SCHOTTKY SOT23 9102652Y02 XTAL FLTR 45.1MHz...
  • Page 93 VHF (136-174MHz) Power Control Schematic Diagram VAG_7 (CNTL) C0705 C0711 R0705 R0712 .0047uF R0702 39000pF 100K PWR_DETECT_7 R0701 (PA) PWR_DETECT R0704 U0701-2 PWR_CNTL_7 100K U0701-4 R0711 PWR_CNTL (PA) MC3403 C0702 C0701 MC3403 100pF 100pF C0713 100pF C0712 R0716 R0717 43pF 560K R0703 3,3K...
  • Page 94 VHF (136-174MHz) Power Control Schematic Diagram Power Control Circuit Motorola Description Parts List Part No. R0713 0662057A61 3k3 1/16W 5% Circuit Motorola Description Part No. R0714 0662057A81 22k 1/16W 5% C0701 2113740F51 100pF 5% 50V R0715 0662057A81 22k 1/16W 5%...
  • Page 95 VHF (136-174MHz) Power Amplifier 5-25W Schematic Diagram VHF (136-174MHz) Power Amplifier 5-25W Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-27...
  • Page 96 VHF (136-174MHz) Power Amplifier 5-25W Schematic Diagram Power Amplifier 5-25W Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. C3632 2111078B59 470pF 5% 100V L3631 2484657R01 INDUCTOR BEADCHIP R3649 0662057A49 1000 OHMS 5%...
  • Page 97 VHF (136-174MHz) Synthesizer Schematic Diagram VHF (136-174MHz) Synthesizer Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-29...
  • Page 98 VHF (136-174MHz) Synthesizer Schematic Diagram Synthesizer Circuit Motorola Description Parts List Part No. R3711 0662057A25 100 1/16W 5% Circuit Motorola Description Part No. R3712 0662057A59 2k7 1/16W 5% C3701 2113740F51 100pF 5% 50V R3713 0662057A47 820 1/16W 5% C3702 2113741F13...
  • Page 99 VHF (136-174MHz) Voltage Controlled Oscillator Schematic Diagram L3742 9V3_1_4 9V3_4 C3733 C3734 R3731 R3740 8.2pF 1.5pF L3731 C3731 .001uF C3743 R3742 C3744 68nH K9V1_4 0.1uF .001uF K9V1 5V_STAB D3731 C3736 C3780 33pF .001uF C3771 R3763 R3781 C3737 C3738 U3741 0.1uF D3732 C3781 33pF...
  • Page 100 VHF (136-174MHz) Voltage Controlled Oscillator Schematic Diagram Voltage Controlled Oscillator Circuit Motorola Circuit Motorola Circuit Motorola Parts List Description Description Description Part No. Part No. Part No. C3777 2113741F17 470pF 50V L3781 2462587T38 COIL CHIP 22nH R3777 0662057A29 150 1/16W 5%...
  • Page 101 VHF (136-174MHz) RX-FE Schematic Diagram VHF (136-174MHz) RX-FE Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-33...
  • Page 102 VHF (136-174MHz) RX-FE Schematic Diagram RX-FE Circuit Motorola Description Parts List Part No. L3302 2462587T23 COIL CHIP 470nH Circuit Motorola Description Part No. L3331 2462587T23 COIL CHIP 470nH C3300 2113741F37 3.3nF 50V L3332 2462587T17 COIL CHIP 150nH C3301 2113740F19 4.7pF 5% 50V...
  • Page 103 VHF (136-174MHz) RX-IF Schematic Diagram VHF (136-174MHz) RX-IF Schematic Diagram PCB/Schematic Diagrams and Parts Lists 3.2-35...
  • Page 104 VHF (136-174MHz) RX-IF Schematic Diagram RX-IF Circuit Motorola Circuit Motorola Description Description Parts List Part No. Part No. C5239 2113740F44 51pF 5% 50V Y5202 9102651Y02 XTAL FLTR 45.1MHz Circuit Motorola Description 12.5KHz 60dB Part No. D5201 4880154K03 DUAL SCHOTTKY SOT23 9102652Y02 XTAL FLTR 45.1MHz...

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