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Motorola Gp328 Gp338 Detailed 6804110j64 F Manual

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    							Troubleshooting charts6D-379.0 Troubleshooting chartsMCU CheckPower Up
    Alert Tone
    OK?
    Speaker
    OK?
    U409 EXTAL=
    7.3728 MHz?
    U201 Pin 19
    16.8 MHz
    5V at U247?
    3.3V at U248?
    U409 Reset Pin
    94 High?MCU is OKNot able to pro-
    gram RF Board
    ICsBefore replacing
    MCU, check SPI
    clock, SPI data,
    and RF IC selectReplace
    Speaker
    Read Radio
    OK?Check
    SetupReprogram the
    correct data.See FGU
    Troubleshooting7.5V at
    Pin 3/5 U247?
    4/3.3V at Pin 1
    U248Check
    Q400Replace
    U247/U248Check any short
    to SWB+,
    Vdda or VdddPress PTT. Red
    LED does not
    light upPTT U409
    Pin 53
    low?Press PTT
    Q502-2
    High?Check
    PB504Check
    Q502-2
    voltage
    LED
    Q502,R501
    OK?Replace
    Faulty
    ComponentCheck
    Accessories J403
    OPT_SEL_1 &
    OPT_SEL_2
    Pin 8 & 9
    low?Radio could
    not PTT
    externallyU409
    Pin 52, 6
    low?See FGU
    Troubleshoot-
    ing chartLED should
    light upCheck
    MCUPTT
    NO
    YES
    YES
    No
    No
    NO
    YESYES
    NOYESYES
    NO
    NO
    YES
    YES
    NO
    NO
    YES
    NO
    YES
    NO
    YESYESNO NO
    YES
    EXT
    SPKR EXT
    PTT INT
    AUDIO
    J403Pin9low?
    Pin8high?ASFIC U404
    Pin14&15
    high?Check
    AccessoriesCheck
    U404Check
    U420 Audio PANO
    NO YES
    YES J403 Audio
    at Pin 2 &
    Pin 3Check Spk.
    Flex Connec-Audio at
    AudioPA
    (U420)
    inputAudio from Pin 41
    ASFIC, U404?Check
    ASFIC U404Check
    Audio PA
    (U420)Check
    U301
    LV Z I FAudio at
    Pin 2
    U404?NO
    NO
    NO YESYES
    NO
    YESTroubleshooting Flow Chart for Controller                                                                                              
    						
    							6D-38Troubleshooting chartsBad SINAD
    Bad 20dB Quieting
    No Recovered AudioSTARTAudio at pin
    27 of U301?Check ControllerYe sNoSpray of inject 1st IF into
    XTAL Filter
    IF Freq: 45.1MHzAudio heard?BYe sNo
    Check 2nd LO Control
    Voltage at C363VCO locked?BYe s16.8 MHz
    check at pin
    22 U301?Activity on
    U301 sel pin?Check FGUNo
    NoAA
    Ye sCheck Q320 bias
    circuitry for faults.Rotate Freq. KnobCheck controller.Before replacing U301, check 2nd
    VCO Q320. Check VCO O/P level,
    C351, C352.Ye sNoTroubleshooting Flow Chart for Receiver (Sheet 1 of 2)                                                                                              
    						
    							Troubleshooting charts6D-39IF Signal at
    L311?No
    RF Signal at
    T301?RF Signal at
    C310?NoRF Signal at
    C307?NoRF Signal at
    C301?No orCheck harmonic filters L101 & L102 and
    ant. switches CR101, CR102, L104Check filter between
    C301 & C307; program
    filter to schematic test
    freq and check varactor
    voltages.Inject RF into J101Are varactor
    voltages OK?NoYe sCheck RF amp (Q301)
    Stage.Check filter between
    C310 & T301.Ye sCheck T301, T302,
    CR306, R308, R309,
    R310Ye s1st LO O/P
    OK?
    Locked?Ye sCheck FGUYe sTrace IF signal
    from L311 to
    Q302. Check for
    badXTALfilter.NoYe sQ302 collec-
    tor OK?
    IF signal
    present?Before replacing
    U301, check
    U301 voltages;
    trace IF signal
    path.Ye sCheck for 2.6
    VDCIs R5
    present?Check Q210, U201
    (pin 48) voltages and
    U247No
    No
    NoCheck U404 voltage.
    U404 can be selected by
    MCU before replacing
    U404.Check varactor filter.NoYe sYe sYe sAABweak RFTroubleshooting Flow Chart for Receiver (Sheet 2 of 2)                                                                                              
    						
    							6D-40Troubleshooting chartsSTARTNo PowerIs There B+
    Bias for Ant
    switchC h e c k Q 111Is Current
    OK?Is Control Volt-
    age High or LowCheck PCIC1. Check Pin Diodes
    2. Check Harmonic FilterInspect/Repair Tx.
    Output NetworkIs Power
    OK?DoneCheck Drive to
    ModuleIs Drive
    OK?Troubleshoot
    VCOInspect PA Network/
    Check Power Out of
    U101 at Cap C160Is Power
    OK?Replace U101Is Power
    OK?Replace Q101DoneDoneNo
    Ye s
    Ye sNo
    No
    Ye sLow
    High
    No
    Ye s
    Ye s
    No
    Ye s
    NoTroubleshooting Flow Chart for Transmitter                                                                                              
    						
    							Troubleshooting charts6D-415V
    at pin 6 of
    CR201Is information
    frommP U409
    correct?Is U201 Pin 18
    AT 4.54 VDC?Is U201 Pin 47
    AT = 13 VDCIs U241 Pin 19
    4.3 VDC in TX?StartVi s u a l
    check of the
    Board OK?Correct
    ProblemCheck 5V
    Regulator+5V at U201
    Pin’s
    13 & 30?Is 16.8MHz
    Signal at
    U201 Pin 19?Check FL201, C206,
    C207, C208, CR203 &
    R204Are signals
    at Pin’s 14 &
    15 of U201?Check
    L202Check Q260,
    Q261 & R260U201 pin 2 at
    >3VinTxand
    -30 dBm?Are R231,R232,
    R233,C231,C232,
    & C233 OK?Replace U201If L261, C263 & C264
    are OK, then see VCO
    troubleshooting chartAre Waveforms
    at Pins 14 & 15
    triangular?Do Pins 7,8 & 9
    of U201 toggle
    when channel is
    changed?Check programming
    lines between U409
    and U201 Pins 7,8 & 9Replace U201Check uP U409
    Troubleshooting
    ChartNO
    YES
    NO
    YES
    NO
    YES
    NO
    YESNO
    NO
    NO
    YES
    YESNOYES YESNO
    YES YES YES
    NONO
    NO
    NO
    YES
    NO
    YES YESCheck CR201, U210,
    U211, C258, C259 &
    C2283.3V at U201
    pins 5, 20, 34 &
    36Check U248,
    L201 & L202Is
    16.8MHz
    signal at
    U201 pin
    23?Replace
    U201YES
    NO NO
    YES
    NO YESTroubleshooting Flow Chart for Synthesizer                                                                                              
    						
    							6D-42Troubleshooting chartsSTARTNo LO?Tx Carrier?VCO OKCheck
    R260TRB = 5V?Pin 10
    >1V?L253 O/C?Change
    L253Change
    U241AUX 3
    High?Check U201
    Pin 2 for 3.2VPin 19
    =0VAUX 4
    High?Change
    Q261Vctrl0V
    or 13V?L243 Open
    Circuit?Change
    U241Change
    L243Change
    U201Check for faulty parts or dry
    joints of L271, L273, C370,
    C386, R339 & L320A
    ANo
    No Ye s
    Ye s Ye s
    No
    NoYe sYe s
    Ye s
    No
    Ye sNoNoYe sYe sNo
    NoCheck R245 for dry
    joint or faultyNoTroubleshooting Flow Chart for VCO                                                                                              
    						
    							6E-1Section 6E
    MODEL CHARTS AND TEST SPECIFICATIONS (29-42/35-
    50MHZ)1.0 Model Charts1.1 29-42MHzGP Series, LB1, 29-42 MHzModel DescriptionAZH25BEC9AA3GP328 29-42 MHz 6W 16CHAZH25BEH9AA6 GP338 29-42 MHz 6W 128CHItem DescriptionXPMUB1011GP328 Super Tanapa 29-42 MHz 6W
    X PMUB1013 GP338 Super Tanapa 29-42 MHz 6WXPMUB1018GP328 Tanapa 29-42 MHz 6W
    X PMUB1020 GP338 Tanapa 29-42 MHz 6WXPMLB4002GP328 B/C Kit 29-42 MHz 6W
    X PMLB4004 GP338 B/C Kit 29-42 MHz 6WXPMLN4216GP328 Front Housing Kit
    X PMLN4199 GP338 Front Housing KitXXNAB6064ALow/Mid Band Heliflex Antenna Trimmable
    X 6804110J54 GP328 User GuideX6804110J55GP338 User Guide
    x = Indicates one of each is required.                                                                                              
    						
    							6E-2Model Charts1.2 35-50MHzGP Series, LB2, 35-50 MHzModel DescriptionAZH25CEC9AA3GP328 35-50 MHz 6W 16CHAZH25CEH9AA6 GP338 35-50 MHz 6W 128CHItem DescriptionXPMUB1026GP328 Super Tanapa 35-50 MHz 6W
    X PMUB1023 GP338 Super Tanapa 35-50 MHz 6WXPMUB1033GP328 Tanapa 35-50 MHz 6W
    X PMUB1030 GP338 Tanapa 35-50 MHz 6WXPMLB4010GP328 B/C Kit 35-50 MHz 6W
    X PMLB4007 GP338 B/C Kit 35-50 MHz 6WXPMLN4216GP328 Front Housing Kit
    X PMLN4199 GP338 Front Housing KitXXNAB6064ALow/Mid Band Heliflex Antenna Trimmable
    X 6804110J54 GP328 User GuideX6804110J55GP338 User Guide
    x = Indicates one of each is required.GP Series, LB2, 35-50 MHzModel DescriptionAZH25CEC9AA3 with
    option AZQ203ALGP328 35-50 MHz 6W (w/o keypad camouflage)AZH25CEH9AA6 with
    option AZQ203AMGP338 35-50 MHz 6W (keypad, camouflage)Item DescriptionXPMUB1051_GP328 Super Tanapa 35-50 MHz 6W
    X PMUB1049_ GP338 Super Tanapa 35-50 MHz 6WXPMUB1052_GP328 Tanapa 35-50 MHz 6W
    X PMUB1050 GP338 Tanapa 35-50 MHz 6WXPMLB4010_GP328 B/C Kit 35-50 MHz 6W
    X PMLB4007_ GP338 B/C Kit 35-50 MHz 6WXPMLN4539_GP328 Front Housing Kit
    X PMLN4538_ GP338 Front Housing KitXXNAB6064_Low/Mid Band Heliflex Antenna Trimmable
    X 6804110J54 GP328 User GuideX6804110J55GP338 User Guide
    x = Indicates one of each is required.                                                                                              
    						
    							Specifications6E-32.0 SpecificationsGeneralTransmitter
    ReceiverAll specifications are subject to change without notice.LowbandFrequency:29-42 MHz
    35-50 MHz
    Channel Capacity: GP328 : 16 Channels
    GP338 : 128 ChannelsPower Supply:7.5 Volts±20%
    Dimensions
    with Standard
    High Capacity
    NiMH Battery:
    with Ultra High
    Capacity NiMH Bat-
    tery:137mm x 57.5mm x
    37.5mm
    137mm x 57.5mm x
    40mmWeight:
    with Standard
    High Capacity
    NiMH Battery:
    with Ultra High
    Capacity NiMH Bat-
    tery:420 g
    500 g
    Average Battery
    Life @ (5-5-90 Duty
    Cycle)
    Standard High
    Capacity NiMH Bat-
    tery:
    Ultra High Capac-
    ity NiMH Battery:Low Pow-
    er
    >11 hrs
    >14 hrsHigh Pow-
    er
    >8 hrs
    >11 hrsSealing:Passes rain testing per
    IP54
    Shock: Meets MIL-STD-810-
    C,D & E and TIA/EIA 603Vibration:Meets MIL-STD-810-
    C,D & E and TIA/EIA 603
    Dust: Meets MIL-STD-810-
    C,D & E and IP54Humidity:Meets MIL-STD-810-
    C,D & E and TIA/EIA 603
    FCC ID AZ489FT1625LowbandRF Output
    NiMH @ 7.5V:Low
    1WHigh
    6W
    Frequency 29-42 MHz
    35-50 MHzChannel Spacing12.5/20/25 kHz
    Freq. Stability
    (-30°Cto+60°C)0.0010%Spurs/Harmonics:-36 dBm < 1 GHz
    -30 dBm > 1 GHz
    Audio Response:
    (from 6 dB/oct. Pre-
    Emphasis, 300 to
    3000Hz)+1, -3 dBAudio Distortion:
    @ 1000 Hz, 60%
    Rated Max. Dev.
    						
    							6E-4Transmitter3.0 Transmitter3.1 General(Refer to Figure 6-1)
    The Lowband transmitter consists of the following basic circuits:
    1.power amplifier (PA)
    2.antenna switch
    3.harmonic filter
    4.antenna matching network
    5.power control integrated circuit (PCIC).3.1.1 Power AmplifierThe power amplifier consists of two LDMOS devices:
    1.PA driver, U101 and
    2.PA final stage, Q100.
    The LDMOS driver (U101) provides 2-stage amplification using a supply voltage of 7.3V. The
    amplifier is capable of supplying an output power of 0.3W (pins 6 and 7) with an input signal of 2mW
    at (pin16). The current drain is typically 120mA while operating in the frequency range of 29.7 - 50
    MHz. The power output of this stage is varied by the power control loop which controls the voltage on
    pin 1.
    The LDMOS PA is capable of supplying an output power of 8W with an input signal of 0.3W. The
    current drain is typically 2000 mA while operating in the frequency range of 29.7 - 50 MHz. The final
    stage gate is bias by a voltage from PCIC pin 24. This voltage is the output of a programmable DAC
    inside the PCIC and the output is adjustable with the radio tuner.Figure 6-1: Lowband Transmitter Block DiagramPCIC
    PA
    PA F i n a l Antenna Switch/
    Driver
    Sta ge
    Harmonic FilterVcontrolGate biasFromAntenna
    Matching
    NetworkPower Amplifier (PA)
    VCOAntenna switch bias
    SPI bus                                                                                              
    						
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