Motorola Gp328 Gp338 Detailed 6804110j64 F Manual
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Troubleshooting charts6A-399.0 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
6A-40Troubleshooting 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 charts6A-41IF 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 bad XTAL filter.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)
6A-42Troubleshooting 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 charts6A-435V 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
6A-44Troubleshooting 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
6B-1Section 6B MODEL CHART AND TEST SPECIFICATIONS (136-174 MHZ)1.0 Model ChartGP Series, VHF, 136-174 MHzModel DescriptionAZH25KDC9AA2GP328 136-174 MHz 5W 4CHAZH25KDC9AA3 GP328 136-174 MHz 5WAZH25KDH9AA6GP338 136-174 MHz 5WItem DescriptionX PMUD1573_ GP328 Super Tanapa 136-174 MHz 5W 4CHXPMUD1480_GP328 Super Tanapa 136-174 MHz 5W X PMUD1481_ GP338 Super Tanapa 136-174 MHz 5WXPMUD1574_GP328 Tanapa 136-174 MHz 5W 4CH X PMUD1495_ GP328 Tanapa 136-174 MHz 5WXPMUD1496_GP338 Tanapa 136-174 MHz 5W X PMLD4159_ GP328 B/C Kit 136-174 MHz 5W 4CHXPMLD4109_GP328 B/C Kit 136-174 MHz 5W X PMLD4110_ GP338 B/C Kit 136-174 MHz 5WXPMLN4348_GP328 Front Housing Kit 4CH X PMLN4216_ GP328 Front Housing KitXPMLN4199_GP338 Front Housing Kit XXXPMAD4012_ Antenna,136-155MHzStubbyXXXPMAD4013_Antenna, 155-174 MHz Stubby XXXPMAD4014_ Antenna,136-155MHz14cmXXXPMAD4015_Antenna, 155-174 MHz 14 cm XXXPMAD4023_ Antenna,150-164MHz14cmXXXPMAD4025_Antenna, 150-161 MHz Stubby XXXNAD6579_ Antenna,148-161MHz19cmXX6804110J54GP328 User Guide X 6804110J55 GP338 User Guide x = Indicates one of each is required.
6B-2Model ChartGP Series, VHF, 136-174 MHzModel DescriptionAZH25KDC9AA3 with option AZQ203ADGP328 136-174 MHz 5W (w/o keypad, camouflage)AZH25KDC9AA3 with option AZH64AGGP328 136-174 MHz 5W (w/o keypad, yellow)AZH25KDH9AA6 with option AZQ203AFGP338 136-174 MHz 5W (keypad, camouflage)AZH25KDH9AA6 with option AZH64AIGP338 136-174 MHz 5W (keypad, yellow)Item DescriptionXPMUD1804_GP328 Super Tanapa 136-174 MHz 5W X PMUD1800_ GP328 Super Tanapa 136-174 MHz 5WXPMUD1806_GP338 Super Tanapa 136-174 MHz 5W X PMUD1802_ GP338 Super Tanapa 136-174 MHz 5WXPMUD1805_GP328 Tanapa 136-174 MHz 5W X PMUD1801_ GP328 Tanapa 136-174 MHz 5WXPMUD1807_GP338 Tanapa 136-174 MHz 5W X PMUD1803_ GP338 Tanapa 136-174 MHz 5WXXPMLD4109_GP328 B/C Kit 136-174 MHz 5W X X PMLD4110_ GP338 B/C Kit 136-174 MHz 5WXPMLN4539_GP328 Front Housing Kit X PMLN4544_ GP328 Front Housing KitXPMLN4538_GP338 Front Housing Kit X PMLN4545_ GP338 Front Housing KitXXXXPMAD4012_Antenna, 136-155 MHz Stubby XXXXPMAD4013_ Antenna,155-174MHzStubbyXXXXPMAD4014_Antenna, 136-155 MHz 14 cm XXXXPMAD4015_ Antenna,155-174MHz14cmXXXXPMAD4023_Antenna, 150-164 MHz 14 cm XXXXPMAD4025_ Antenna,150-161MHzStubbyXXXXNAD6579_Antenna, 148-161 MHz 19 cm X X 6804110J54 GP328 User GuideXX6804110J55GP338 User Guide x = Indicates one of each is required.
Specifications6B-32.0 SpecificationsGeneralTransmitter ReceiverAll specifications are subject to change without notice.VHFFrequency:136-174 MHz Channel Capacity: GP328 : 4/16 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 AZ489FT3794VHFRF Output NiMH @ 7.5V:Low 1WHigh 5W Frequency 136-174 MHzChannel Spacing12.5/20/25 kHz Freq. Stability (-30°Cto+60°C)0.00025%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.
6B-4Transmitter3.0 Transmitter3.1 General(Refer to Figure 6-1) The VHF transmitter contains five basic circuits: 1.power amplifier 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 devices: 1.9Z67 LDMOS driver IC (U3501) and 2.PRF1507 LDMOS PA (Q3501). 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). The current drain would typically be 130mA while operating in the frequency range of 136-174MHz. The PRF1507 LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.3W. The current drain would typically be 1800mA while operating in the frequency range of 136-174MHz. The power output can be varied by changing the biasing voltage.Figure 6-1: Transmitter Block DiagramPCIC Antenna PA DriverVcontrolVcontrolFrom VCOJackPA - F i n a l StageAntenna Switch/ Harmonic Filter/ Matching Network