Motorola PM400 Service Manual

vSAFETY INFORMATIONProduct Safety and RF Exposure ComplianceATTENTION!This radio is restricted to occupational use only to satisfy FCC RF energy expos

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-7MOD_OUT16.8MHzSPI_CLKSPI_MOSIMIC_AUDIO_CHHANDSET_RX_AUDIO_CHVS_AUDIO_SELRESETuP_CLKF1200HSI

4-8 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics120.p100n120.pDNPDNPPLACED NEAR R122PLACED NEAR CHIP’s PINDNPTO SHEET 1FILT_SW_B+FLT_9V9VTX

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-9LM2904U102L1171019447Antenna Connector390.n7.5width 2.032CouplerPA’s Temp. SensorDNPDNPTO S

4-10 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsU200FRACN_63A27XTAL224XTAL123WARP2513VROVMULT411VMULT31234VMULT214VMULT115VCP47VBPASS21TES

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-11VCO ShieldVCOBIC ShieldDNPDNPDNPDNPDNP73D02968C74-OTO SHEET 2SHEE 5 OF 8IF20010.KV_SFTX_IN

4-12 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsMIXER SHIELDDNPDNPDNPDNPDNPTO SHEET 1FRONT-END SHIELD51.p3V5V9VRX_ENLOC_DIST470.0nIF3001TP

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-1373D02968C74-OSHEET 6 OF 8Check if it is 3v or another valueNUNUNUDNPDNP DNPTO SHEE

4-14 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics9VCOMP_B+B+BATT_SENSEDNPVAG=4.5v3.3V to IFIC, ASFIC3.3V RF REGULATOR3.3v digitalDNPDNPDNPT

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-15C5023100nSPKR-SPKR+100nC5034R50161.M12.K24.K100n120.pC5080R50880.200K36K1K120PTO SHEET 2DN

4-16 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsDNPTO SHEET 1SPI_CLKSPI_MOSISPI_MISOPLACE NEAR U402DNPDNPPROVIDE WIRED OR OPERATION ON CSP

viNotes

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-17D3_3VDNPDNPSHEET 8 OF 873D02968C74-ODNPR4583.3KVR400VSTBYC417120.pVR4023.30R4020.Q401DNPDN

4-18 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsLM2904U10065IF7011784SHEET 3 OF 873D02968C74-OIF700139.pC108239.pC1075U100LM290423184C1071

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-192.1 UHF2 PCB 8488978U01 (rev. P9) Parts List 1-25 WCircuit Ref.Motorola Part No.Descriptio

4-20 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsC1098 2113740F53 CAP CHIP REEL CL1 +/-30 120C1099 2113740F53 CAP CHIP REEL CL1 +/-30 120C1

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-21C2043 2113740L14 CAP CER CHIP 6.8PF +-0.1PFC2044 NOT PLACED GCAM DUMMY PART NUMBERC2045 21

4-22 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsC345 2113740L08 CAP CER CHIP 3.9 PF+/-0.1PFC346 2113740L09 CAP CER CHIP 4.3 PF +-0.1PFC347

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-23C5046 2113743E20 CAP CHIP. 10 UF 10%C5047 2113743E20 CAP CHIP. 10 UF 10%C5048 2113743E20 C

4-24 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsC611 2113740F41 CAP CHIP REEL CL1 +/-30 39C612 2113740F41 CAP CHIP REEL CL1 +/-30 39C613 2

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-25L209 2413926N24 IND CER CHIP 100.0 NH 5%L210 2413926N18 IND CER CHIP 33.0 NH 5%L211 241392

4-26 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsR127 0662057C03 CHIP RES 1.0 OHMS 5%R128 0662057C03 CHIP RES 1.0 OHMS 5%R130 0662057B47 CH

Chapter 1INTRODUCTION1.0 Scope of ManualThis manual is intended for use by service technicians familiar with similar types of equipment. It contains s

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-27R320 0662057A73 CHIP RES 10K OHMS 5%R321 0662057A71 CHIP RES 8200 OHMS 5%R322 0662057A65 C

4-28 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsR5023 0662057A97 CHIP RES 100K OHMS 5%R5024 0662057A97 CHIP RES 100K OHMS 5%(Not used in G

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-29U102 5113818A01 IC LOW COST SING SPLY LM2904DRU103 5113819A04 IC QD OP AMP GEN PURP MC3303

4-30 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics3.0 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics9VCOMP_B+DET_VFWDFILT_SW_B+INTEGR

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-31C1006C1007C1010C1011C1016C1020C1021C1023C1026C1108D103D104J11L108L111L113L114L126R150M101M1

4-32 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsVR692R402R403R404R600VR503VR694VR698VR699C5037C5055C5063C5119Q502Q505Q506R405R5020R5023R502

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-33Accessory ConnectorControl Head ConnectorNCPlace capacitors near J2 Place capacitors near J

4-34 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsMOD_OUT16.8MHzSPI_CLKSPI_MOSIMIC_AUDIO_CHHANDSET_RX_AUDIO_CHVS_AUDIO_SELRESETuP_CLKF1200HSI

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-35PA_FILT_B+(SOURCE)1019447L100C1107120.p39.pC1106C111139.pR1865.1C1089120.pC1000120.pC111239

4-36 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsL11518.nC1002100.pL1171019447S2S3S4Q100DGGND1GND2S17.5width 2.032DNPDNPC100427.pC1007C10091

1-2 INTRODUCTION3.0 Replacement Parts Ordering3.1 Basic Ordering InformationWhen ordering replacement parts or equipment information, the complete ide

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-37SPI_MOSISPI_CLKMOD_IN5V3VSYNTH_CS5V2.2uFC2000 390nHL2173V390nHL200C2034120.pC20150.1uFC2005

4-38 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsVCO ShieldVCOBIC ShieldDNPDNPDNP73D02968C74-OTO SHEET 2SHEE 5 OF 8IF20010.KV_SFTX_INJRX_INJ

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-39DNPDNP51.pIF3001DNPC112124.pC370C32847.p3.9pC3417.5pC368L31018.08nL30918.08nL30018.08nC3538

4-40 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsCheck if it is 3v or another value3VU301GND4VCC8PWR_GNDU30135TC7W04F5VTO SHEET 218.pC362C33

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-419VCOMP_B+B+BATT_SENSEDNPVAG=4.5v3.3V to IFIC, ASFIC3.3V RF REGULATOR3.3v digitalDNPDNPDNPTO

4-42 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsC5023100nSPKR-SPKR+100nC5034R50161.M12.K24.K100n120.pC5080R50880.200K36K1K120PTO SHEET 2DNP

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-43DNPTO SHEET 1SPI_CLKSPI_MOSISPI_MISOPLACE NEAR U402DNPDNPPROVIDE WIRED OR OPERATION ON CSPR

4-44 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsD3_3VDNPDNPSHEET 8 OF 873D02968C74-ODNPR4583.3KVR400VSTBYC417120.pVR4023.30R4020.Q401DNPDNP

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-45LM2904U10065IF7011784SHEET 3 OF 873D02968C74-OIF700139.pC108239.pC1075U100LM290423184C10711

4-46 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics3.1 UHF2 PCB 8486684Z02 (Rev. A) Parts List 1-25 WCircuit Ref.Motorola Part No.DescriptionC

Radio Model Information 1-33.6 Parts IdentificationRadio Products and Solutions Organization*(United States and Canada)1-800-422-4210* The Radio Produ

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-47C1099 2113740F53 CAP CHIP REEL CL1 +/-30 120C1100 2113740F53 CAP CHIP REEL CL1 +/-30 120C11

4-48 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsC2041 2113740F53 CAP CHIP REEL CL1 +/-30 120C2042 2113740F53 CAP CHIP REEL CL1 +/-30 120C20

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-49C347 2113740L07 CAP CER CHIP 3.6PF +-0.1PFC348 2113740L06 CAP CER CHIP 3.3 PF+/-0.1PFC349 2

4-50 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsC5049 2113743E20 CAP CHIP. 10 UF 10%C5050 2113743E20 CAP CHIP. 10 UF 10%C5051 2113743E20 CA

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-51C613 2113740F41 CAP CHIP REEL CL1 +/-30 39C614 2113740F41 CAP CHIP REEL CL1 +/-30 39C615 21

4-52 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsL211 2413926N24 IND CER CHIP 100.0 NH 5%L212 2413926N18 IND CER CHIP 33.0 NH 5%L213 2413926

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-53R130 0662057B47 CHIP RES 0 OHMS +-.050 OHMSR131 0662057A97 CHIP RES 100K OHMS 5%R134 066205

4-54 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsR321 0662057A71 CHIP RES 8200 OHMS 5%R322 0662057A65 CHIP RES 4700 OHMS 5%R323 0662057A65 C

UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / Schematics 4-55R5021 0662057A97 CHIP RES 100K OHMS 5%R5022 0662057A97 CHIP RES 100K OHMS 5%R5023 0662057A9

4-56 UHF 1-25 W Band 2 PCB 8486684Z02 (Rev. A) / SchematicsR5087 0662057A97 CHIP RES 100K OHMS 5%R5088 0662057B47 CHIP RES 0 OHMS +-.050 OHMSR5089 NOT

1-4 INTRODUCTIONNotes

CM200/CM300/PM400RadiosUHF2 (438-470 MHz) 25-40 WService InformationIssue: November, 2007M

iiComputer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

iiiTable of ContentsChapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS1.0 CM200/CM300/PM400 Model Chart...

iv9.0 Receive Audio Circuits...2-199.1 Squelch Detect ...

v3.0 UHF 25-40 W Band 4 PCB 8486577Z03 / Schematics ...4-31UHF2 Interconnection between Main Board and Power Amplif

viNotes

Chapter 1MODEL CHART AND TECHNICAL SPECIFICATIONS1.0 CM200/CM300/PM400 Model ChartUHF2, 25-40 W, 438-470 MHzModel DescriptionAAM50RPC9AA1A CM200 438-4

1-2 MODEL CHART AND TECHNICAL SPECIFICATIONS2.0 Technical SpecificationsData is specified for +25°C unless otherwise stated.GeneralSpecification UHF2F

Technical Specifications 1-3TransmitterSpecification UHF2Power Output 25-40WConducted/Radiated Emissions:-26 dBmAudio Response: (from 6 dB/oct. Pre-Em

1-4 MODEL CHART AND TECHNICAL SPECIFICATIONSNotes

Chapter 2MAINTENANCE1.0 IntroductionThis chapter of the manual describes:• preventive maintenance• safe handling of CMOS devices• repair procedures an

Chapter 2THEORY OF OPERATION1.0 IntroductionThis Chapter provides a detailed theory of operation for the UHF circuits in the radio. Details of the the

2-2 THEORY OF OPERATION2.2 Receiver Back EndThe IF signal from the crystal filter enters the IF amplifier which provides 20 dB of gain and feeds the I

UHF Transmitter Power Amplifier (438-470 MHz) 2-3power of the PA.Op-amp U103-3 monitors the drain current of U101 via resistor R122 and adjusts the bi

2-4 THEORY OF OPERATION3.6 Harmonic FilterInductors L111, L113 and L128 along with capacitors C1011, C1023, C1020, C1016, C1025 and C1026 form a low-p

UHF (438-470 MHz) Frequency Synthesizer 2-5parameters (four characterize the inverse Bechmann voltage curve and one for frequency accuracy of the refe

2-6 THEORY OF OPERATION4.3 Voltage Controlled Oscillator (VCO)The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U201), th

UHF (438-470 MHz) Frequency Synthesizer 2-74.4 Synthesizer OperationThe synthesizer consists of a low voltage FRAC-N IC (LVFRAC-N), reference oscillat

2-8 THEORY OF OPERATION5.0 Controller Theory of OperationThis section provides a detailed theory of operation for the radio and its components. The ma

Controller Theory of Operation 2-9The DC voltage applied to connector P2 supplies power directly to the following circuitry:• Electronic on/off contro

2-10 THEORY OF OPERATIONVoltage regulator U503 provides 5 V for the RF circuits. Input and output capacitors are used to reduce the high frequency noi

2-2 MAINTENANCE3.0 Safe Handling of CMOS and LDMOSComplementary metal-oxide semiconductor (CMOS) devices are used in this family of radios. CMOS chara

Controller Theory of Operation 2-11While the radio is switched on, the µP monitors the voltage at the emergency input on the accessory connector via U

2-12 THEORY OF OPERATION5.5 Serial Peripheral Interface (SPI)The µP communicates to many of the IC’s through its SPI port. This port consists of SPI T

Controller Theory of Operation 2-135.8 Normal Microprocessor OperationFor this radio, the µP is configured to operate in one of two modes, expanded an

2-14 THEORY OF OPERATION5.9 Static Random Access Memory (SRAM)The SRAM (U402) contains temporary radio calculations or parameters that can change very

Transmit Audio Circuits 2-157.0 Transmit Audio CircuitsFigure 2-7 Transmit Audio Paths7.1 Microphone Input PathThe radio supports 2 distinct microphon

2-16 THEORY OF OPERATION7.1.2 Standard MicrophoneHook Pin is shorted to the hook mic inside the standard Mic, If the mic is out off hook, 3.3 V is rou

Transmit Signalling Circuits 2-178.0 Transmit Signalling CircuitsFigure 2-8 Transmit Signalling PathFrom a hardware point of view, there are 3 types o

2-18 THEORY OF OPERATION8.2 High Speed DataHigh speed data refers to the 3600 baud data waveforms, known as Inbound Signaling Words (ISWs) used in a t

Receive Audio Circuits 2-199.0 Receive Audio CircuitsFigure 2-9 Receive Audio Paths9.1 Squelch DetectThe radio’s RF circuits are constantly producing

2-20 THEORY OF OPERATION9.2 Audio Processing and Digital Volume ControlThe receiver audio signal (DISC AUDIO) enters the controller section from the I

General Repair Procedures and Techniques 2-3Chip ComponentsUse either the RLN4062 Hot-Air Repair Station or the Motorola 0180381B45 Repair Station for

Receive Signalling Circuits 2-219.4 Handset AudioCertain handheld accessories have a speaker within them which require a different voltage level than

2-22 THEORY OF OPERATIONThe low speed limited data output (PL, DPL, and trunking LS) appears at U504-pin18, where it connects to the µP U403-pin 80.Th

Chapter 3TROUBLESHOOTING CHARTSThis section contains detailed troubleshooting flowcharts. These charts should be used as a guide in determining the pr

3-2 TROUBLESHOOTING CHARTS1.0 Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2)Problem in 12 KHz and 25 KHz channel spacing9V onR310 (LNA)OK?C

Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2) 3-31.1 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)3V(IFIC -Vcc)OK ?InstallationOK

3-4 TROUBLESHOOTING CHARTS2.0 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 1 of 3)STARTYesNoCheck components between Q100 and RF output, Ant

Troubleshooting Flow Chart for 40 W Transmitter (Sheet 1 of 3) 3-52.1 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 2 of 3)NoYesYesNoCheck bi

3-6 TROUBLESHOOTING CHARTS2.2 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 3 of 3)NoYesYesNoCheck Final PA StagePA_Bias Voltage at R134RF Vo

Troubleshooting Flow Chart for Synthesizer 3-73.0 Troubleshooting Flow Chart for Synthesizer5V at pin 6 of D200Isinformationfrom uP U403correct?IsU200

3-8 TROUBLESHOOTING CHARTS4.0 Troubleshooting Flow Chart for VCOAre Q200Base at 2.9V Collector at 6.6V Emitter at 2.2VAre U201 Pins15 at 1.0V10 at 3.9

2-4 MAINTENANCEShieldsRemoving and replacing shields will be done with the R1070 station with the temperature control set to approximately 215°C (415°

Troubleshooting Flow Chart for DC Supply (1 of 2) 3-95.0 Troubleshooting Flow Chart for DC Supply (1 of 2)Since the failure of a critical voltage supp

3-10 TROUBLESHOOTING CHARTS5.1 Troubleshooting Flow Chart for DC Supply (2 of 2)Check VDC onC5007V=3.3V?Check Voltage on C5041NoGo to Digital SectionY

Chapter 4UHF2 PCB/ SCHEMATICS/ PARTS LISTS1.0 Allocation of Schematics and Circuit Boards1.1 UHF2 and Controller CircuitsThe UHF circuits are containe

4-2 UHF2 PCB/ SCHEMATICS/ PARTS LISTSNotes

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-32.0 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsTX_INJVREV_BUFFER_IN9VCOMP_B+DET_VFWDFILT_SW_B+INT

4-4 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsC1016C1020C1025C1026J11L111L113L128L130M4C1007C1008C1009C1013C1017C1021C1276C1277C1278C1279C1280L126

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-52M1012M102R150C1002C1089C1106C1112C1273L115L124L125C1000L117C1027C1065C1103C1104C1107C12822Q107R106R

4-6 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsFILT_SW_B+ D3_3VD3_3VFILT_SW_B+TX_ENSPI_CLK SPI_MOSISPI_MISOSYNTH_CSSYNTH_LOCKVS_AUDIO_SELVS_CSVS_GA

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-7SPI_CLKSPI_MOSISQ_DETVS_AUDIO_SELuP_CLKF1200HSIOLSIORESETASFIC_CSCH_ACT3VD3_3V5V3V5VD3_3VSPKR+SPKR-V

4-8 UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics0.0662057B47R130U1039108411MC3303120.pC10722113740F53180.p2113740F57C1053R13739.KFILT_SW_B+_PAV_CTRL

MCM200/CM300/PM400RadiosDetailed Service Manual6881098C00-A

Notes For All Schematics and Circuit Boards 2-55.0 Notes For All Schematics and Circuit Boards* Component is frequency sensitive. Refer to the Electri

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-939pFC1095FINAL_CURRENT_SENSEPA_CURRENT120.pC10735113818A0165784U102LM2904R1120662057B05200KR177100FI

4-10 UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics5VC20150.1uFC20002.2uFL217390nH 5V120.pC20343VC20052.2uF10nC2023L200390nH3VC2035120.p0.1uFC20162.2u

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-11100.nC2076150.nL2043900pFC20123900pFC2030DNPDNPL203150.nD203C20691.2p6.2pFC2064100.0nL211L20612.5n2

4-12 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsSH301SHIELD19V3V5V3V5V9VRX_ENIF3001C11213.3pFSH300SHIELD14.7pC34118.08n18.08nL309L300C33420.p3.9pC3

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-13TC7W04FU30162C312100nBW_SEL3VU301TC7W04F35U301PWR_GND4GND8VCCR3243.3KD3022.4KR327TC7W04FU30117100nC

4-14 UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics57R01L120120.pC111339.pC109739.pC108811IF502IF503C111439.pC1098120.pCOMP_B+FILT_B+1019447L50010.uC5

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-15POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BRDDETECTOR_AUDIO_SEND_OPT_BRDUNMUTED_RX_AUDIO_SEND_OPT_BRDFL

4-16 UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics69VRH68VRL13VSS40VSSL87VSSRXFC9348XIRQ91XTAL76PJ577PJ678PJ794RESET12VDD39VDDL88VDDR92VDDSYN51PI550P

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-171TP408TEST_POINTD3_3V10.KR445Q414R45947.K1.uC49010.KR431VR4006.80D3_3V10.KR444Q415TEST_POINTTP4051B

4-18 UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics22.KR1410662057A81C108239pFIF7011INTEGRATOR5180932W01LM2904U10023184120.pC10712113740F5318KR1400662

2-6 MAINTENANCEMIC_PTT_CH Microphone PTT InputMOD_IN Modulation Signal from ASFICMOD_OUT Modulation Signal to the SynthesizerONOFF_SENSE On off sense

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-192.1 UHF2 PCB 8486577Z01 Parts List25-40 WCircuit Ref.Motorola Part No.DescriptionC1000 2113740F53 C

4-20 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsC1088 2113740F41 CAP CHIP REEL CL1 +/-30 39C1089 2113740F53 CAP CHIP REEL CL1 +/-30 120C1090 NOT PL

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-21C2000 2113743F18 CAP CHIP 2.2 UF 16V +80-20%C2001 2311049J11 CAPACITOR TANT 10% 4.7UFC2002 2311049A

4-22 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsC304 2113743E20 CAP CHIP. 10 UF 10%C305 2113743E20 CAP CHIP. 10 UF 10%C306 2113743E20 CAP CHIP. 10

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-23C5002 2311049A99 CAP TANT CHIP 47 UF 10V 20%C5003 2311049A99 CAP TANT CHIP 47 UF 10V 20%C5004 NOT P

4-24 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsC5092 2113740F59 CAP CHIP REEL CL1 +/-30 220C5094 2113740F59 CAP CHIP REEL CL1 +/-30 220C5095 21137

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-25D500 4813833C02 DIODE DUAL 70V ‘5B’ COMM CATHD501 NOT PLACED GCAM DUMMY PART NUM-BERD502 4813825A23

4-26 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsQ301 4813824A17 XSTR PNP40V .2A GENPB=100-300Q302 4813824A10 TSTR NPN 40V .2A GEN PURPQ303 4802245J

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-27R188 NOT PLACED GCAM DUMMY PART NUM-BERR189 0662057A97 CHIP RES 100K OHMS 5%R190 0662057C35 CHIP RE

4-28 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsR432 0662057A85 CHIP RES 33K OHM 5%R433 0662057A85 CHIP RES 33K OHM 5%R434 0662057A85 CHIP RES 33K

Notes For All Schematics and Circuit Boards 2-7VS AUDIO_SEL Switch signal to Enable option board audio output signalVS GAIN_SEL Voice Storage Gain Sel

UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-29R5082 0662057A90 CHIP RES 51K OHMS 5%R5083 0662057B08 CHIP RES 270K OHMS 5%R5084 0662057B47 CHIP RE

4-30 UHF 25-40 W Band 2 PCB 8486577Z01 / SchematicsNotes

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-313.0 UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics9VCOMP_B+DET_VFWDFILT_SW_B+INTEGRATORPA_BIASPA_CU

4-32 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsC1016C1020C1025C1026J11L111L113L128L130C1006C1010C1011C1023C1108D103D104L114M105M108M109U51623FL301

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-33C417C5099D402R402R403R404R407R600R615VR503VR692VR694VR697VR698VR699C5037C5055C5063C5094C5119D501D51

4-34 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsFILT_SW_B+ D3_3VD3_3VFILT_SW_B+TX_ENSPI_CLK SPI_MOSISPI_MISOSYNTH_CSSYNTH_LOCKVS_AUDIO_SELVS_CSVS_G

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-35SPI_CLKSPI_MOSISQ_DETVS_AUDIO_SELuP_CLKF1200HSIOLSIORESETASFIC_CSCH_ACT3VD3_3V5V3V5VD3_3VSPKR+SPKR-

4-36 UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics0.0662057B47R130U1039108411MC3303120.pC10722113740F53180.p2113740F57C1053R13739.KFILT_SW_B+_PAV_CTR

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-3739pFC1095FINAL_CURRENT_SENSEPA_CURRENT120.pC10735113818A0165784U102LM2904R1120662057B05200KR177100F

4-38 UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics5VC20150.1uFC20002.2uFL217390nH 5V120.pC20343VC20052.2uF10nC2023L200390nH3VC2035120.p0.1uFC20162.2u

2-8 MAINTENANCENotes

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-39100.nC2076150.nL2043900pFC20123900pFC2030DNPDNPL203150.nD203C20691.2p6.2pFC2064100.0nL211L20612.5n2

4-40 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsSH301SHIELD19V3V5V3V5V9VRX_ENIF3001C11213.3pFSH300SHIELD14.7pC34118.08n18.08nL309L300C33420.p3.9pC3

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-41TC7W04FU30162C312100nBW_SEL3VU301TC7W04F35U301PWR_GND4GND8VCCR3243.3KD3022.4KR327100nC3132FLTRGND3I

4-42 UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics57R01L120120.pC111339.pC109739.pC108811IF502IF503C111439.pC1098120.pCOMP_B+FILT_B+1019447L50010.uC5

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-43POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BRDDETECTOR_AUDIO_SEND_OPT_BRDUNMUTED_RX_AUDIO_SEND_OPT_BRDFL

4-44 UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics69VRH68VRL13VSS40VSSL87VSSRXFC9348XIRQ91XTAL76PJ577PJ678PJ794RESET12VDD39VDDL88VDDR92VDDSYN51PI550P

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-451TP408TEST_POINTD3_3V10.KR445Q414R45947.K1.uC49010.KR431VR4006.80D3_3V10.KR444Q415TEST_POINTTP4051B

4-46 UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics22.KR1410662057A81C108239pFIF7011INTEGRATOR5180932W01LM2904U10023184120.pC10712113740F5318KR1400662

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-473.1 UHF2 PCB 8486577Z03 Parts List 25-40 WCircuit Ref.Motorola Part No.DescriptionC1000 2113740F53

4-48 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsC1087 2113740F41 CAP CHIP REEL CL1 +/-30 39C1088 2113740F41 CAP CHIP REEL CL1 +/-30 39C1089 2113740

Chapter 3SERVICE AIDS1.0 Recommended Test ToolsTable 3-1 lists the service aids recommended for working on the radio. While all of these items are ava

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-49C2000 2113743F18 CAP CHIP 2.2 UF 16V +80-20%C2001 2311049J11 CAPACITOR TANT 10% 4.7UFC2002 2311049A

4-50 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsC304 2113743E20 CAP CHIP. 10 UF 10%C305 2113743E20 CAP CHIP. 10 UF 10%C306 2113743E20 CAP CHIP. 10

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-51C5004 NOT PLACED GCAM DUMMY PART NUM-BERC5005 2360567A03 CAP TANTALUMC5006 2311049A57 CAP TANT CHIP

4-52 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsC5095 2113740F59 CAP CHIP REEL CL1 +/-30 220C5096 2113740F59 CAP CHIP REEL CL1 +/-30 220C5097 21137

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-53D502 4813825A23 DIODE, DISCRETE SPE-CIALS VAR&PD511 4813833C02 DIODE DUAL 70V ‘5B’ COMM CATHD51

4-54 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsQ302 4813824A10 TSTR NPN 40V .2A GEN PURPQ303 4802245J95 BJT, NPN TRANSISTORQ304 4809939C04 TSTR DU

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-55R189 0662057A97 CHIP RES 100K OHMS 5%R190 0662057C35 CHIP RES 22 OHMS 5%R191 0662057C35 CHIP RES 22

4-56 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsR435 0662057A85 CHIP RES 33K OHM 5%R436 0662057A85 CHIP RES 33K OHM 5%R438 0662057A73 CHIP RES 10K

UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics 4-57R5085 NOT PLACED GCAM DUMMY PART NUM-BERR5086 0662057A43 CHIP RES 560 OHMS 5%R5087 0662057A97 CHIP

4-58 UHF 25-40 W Band 2 PCB 8486577Z03 / SchematicsNotes

3-2 SERVICE AIDS2.0 Test EquipmentTable 3-2 lists test equipment required to service the radio and other two-way radios.Table 3-2 Recommended Test E

CM200/CM300/PM400RadiosUHF3 (465-495 MHz) 25-40 WService InformationIssue: November, 2007M

iiComputer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

iiiTable of ContentsChapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS1.0 PM400 Model Chart...

iv9.0 Receive Audio Circuits...2-199.1 Squelch Detect ...

v3.0 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics ...4-31UHF3 Interconnection between Main Board and Power Amplif

viNotes

Chapter 1MODEL CHART AND TECHNICAL SPECIFICATIONS1.0 PM400 Model ChartUHF3, 25-40 W, 465-495 MHzModel DescriptionAAM50SPF9AA3AN PM400 465-495 MHz, 25-

1-2 MODEL CHART AND TECHNICAL SPECIFICATIONS2.0 Technical SpecificationsData is specified for +25°C unless otherwise stated.GeneralSpecification UHF3F

Technical Specifications 1-3TransmitterSpecification UHF2Power Output 25-40WConducted/Radiated Emissions:-26 dBmAudio Response: (from 6 dB/oct. Pre-Em

1-4 MODEL CHART AND TECHNICAL SPECIFICATIONSNotes

CM200/CM300/PM400RadiosControl HeadService InformationIssue: November, 2007M

Chapter 2THEORY OF OPERATION1.0 IntroductionThis Chapter provides a detailed theory of operation for the UHF circuits in the radio. Details of the the

2-2 THEORY OF OPERATION2.2 Receiver Back EndThe IF signal from the crystal filter enters the IF amplifier which provides 20 dB of gain and feeds the I

UHF Transmitter Power Amplifier (465-495 MHz) 2-3power of the PA.Op-amp U103-3 monitors the drain current of U101 via resistor R122 and adjusts the bi

2-4 THEORY OF OPERATION3.6 Harmonic FilterInductors L111, L113 and L128 along with capacitors C1011, C1023, C1020, C1016, C1025 and C1026 form a low-p

UHF (465-495 MHz) Frequency Synthesizer 2-5parameters (four characterize the inverse Bechmann voltage curve and one for frequency accuracy of the refe

2-6 THEORY OF OPERATION4.3 Voltage Controlled Oscillator (VCO)The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U201), th

UHF (465-495 MHz) Frequency Synthesizer 2-74.4 Synthesizer OperationThe synthesizer consists of a low voltage FRAC-N IC (LVFRAC-N), reference oscillat

2-8 THEORY OF OPERATION5.0 Controller Theory of OperationThis section provides a detailed theory of operation for the radio and its components. The ma

Controller Theory of Operation 2-9The DC voltage applied to connector P2 supplies power directly to the following circuitry:• Electronic on/off contro

2-10 THEORY OF OPERATIONVoltage regulator U503 provides 5 V for the RF circuits. Input and output capacitors are used to reduce the high frequency noi

iiComputer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

Controller Theory of Operation 2-11While the radio is switched on, the µP monitors the voltage at the emergency input on the accessory connector via U

2-12 THEORY OF OPERATION5.5 Serial Peripheral Interface (SPI)The µP communicates to many of the IC’s through its SPI port. This port consists of SPI T

Controller Theory of Operation 2-135.8 Normal Microprocessor OperationFor this radio, the µP is configured to operate in one of two modes, expanded an

2-14 THEORY OF OPERATION5.9 Static Random Access Memory (SRAM)The SRAM (U402) contains temporary radio calculations or parameters that can change very

Transmit Audio Circuits 2-157.0 Transmit Audio CircuitsFigure 2-7 Transmit Audio Paths7.1 Microphone Input PathThe radio supports 2 distinct microphon

2-16 THEORY OF OPERATION7.1.2 Standard MicrophoneHook Pin is shorted to the hook mic inside the standard Mic, If the mic is out off hook, 3.3 V is rou

Transmit Signalling Circuits 2-178.0 Transmit Signalling CircuitsFigure 2-8 Transmit Signalling PathFrom a hardware point of view, there are 3 types o

2-18 THEORY OF OPERATION8.2 High Speed DataHigh speed data refers to the 3600 baud data waveforms, known as Inbound Signaling Words (ISWs) used in a t

Receive Audio Circuits 2-199.0 Receive Audio CircuitsFigure 2-9 Receive Audio Paths9.1 Squelch DetectThe radio’s RF circuits are constantly producing

2-20 THEORY OF OPERATION9.2 Audio Processing and Digital Volume ControlThe receiver audio signal (DISC AUDIO) enters the controller section from the I

iiiTable of ContentsChapter 1 OVERVIEW1.0 CM200 Model...

Receive Signalling Circuits 2-219.4 Handset AudioCertain handheld accessories have a speaker within them which require a different voltage level than

2-22 THEORY OF OPERATIONThe low speed limited data output (PL, DPL, and trunking LS) appears at U504-pin18, where it connects to the µP U403-pin 80.Th

Chapter 3TROUBLESHOOTING CHARTSThis section contains detailed troubleshooting flowcharts. These charts should be used as a guide in determining the pr

3-2 TROUBLESHOOTING CHARTS1.0 Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2)Problem in 12 KHz and 25 KHz channel spacing9V onR310 (LNA)OK?C

Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2) 3-31.1 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)3V(IFIC -Vcc)OK ?InstallationOK

3-4 TROUBLESHOOTING CHARTS2.0 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 1 of 3)STARTYesNoCheck components between Q100 and RF output, Ant

Troubleshooting Flow Chart for 40 W Transmitter (Sheet 1 of 3) 3-52.1 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 2 of 3)NoYesYesNoCheck bi

3-6 TROUBLESHOOTING CHARTS2.2 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 3 of 3)NoYesYesNoCheck Final PA StagePA_Bias Voltage at R134RF Vo

Troubleshooting Flow Chart for Synthesizer 3-73.0 Troubleshooting Flow Chart for Synthesizer5V at pin 6 of D200Isinformationfrom uP U403correct?IsU200

3-8 TROUBLESHOOTING CHARTS4.0 Troubleshooting Flow Chart for VCOAre Q200Base at 2.9V Collector at 6.6V Emitter at 2.2VAre U201 Pins15 at 1.0V10 at 3.9

iv2.1 Control Head PCB 8488998U01 Parts List ...4-53.0 Control Head CM300/PM400 - PCB 8489714U01 / Sc

Troubleshooting Flow Chart for DC Supply (1 of 2) 3-95.0 Troubleshooting Flow Chart for DC Supply (1 of 2)Since the failure of a critical voltage supp

3-10 TROUBLESHOOTING CHARTS5.1 Troubleshooting Flow Chart for DC Supply (2 of 2)Check VDC onC5007V=3.3V?Check Voltage on C5041NoGo to Digital SectionY

Chapter 4UHF3 PCB/ SCHEMATICS/ PARTS LISTS1.0 Allocation of Schematics and Circuit Boards1.1 UHF3 and Controller CircuitsThe UHF circuits are containe

4-2 UHF3 PCB/ SCHEMATICS/ PARTS LISTSNotes

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-32.0 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics9VCOMP_B+DET_VFWDFILT_SW_B+INTEGRATORPA_BIASPA_CUR

4-4 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsC1016C1020C1025C1026J11L111L113L128L130M4C1007C1008C1009C1013C1017C1021C1276C1277C1278C1279C1280L126

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-52M1012M102R150C1002C1089C1106C1112C1273L115L124L125C1000L117C1027C1065C1103C1104C1107C12822Q107R106R

4-6 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsFILT_SW_B+ D3_3VD3_3VFILT_SW_B+TX_ENSPI_CLK SPI_MOSISPI_MISOSYNTH_CSSYNTH_LOCKVS_AUDIO_SELVS_CSVS_GA

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-7SPI_CLKSPI_MOSISQ_DETVS_AUDIO_SELuP_CLKF1200HSIOLSIORESETASFIC_CSCH_ACT3VD3_3V5V3V5VD3_3VSPKR+SPKR-V

4-8 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics0.0662057B47R130U1039108411MC3303120.pC10722113740F53180.p2113740F57C1053R13739.KFILT_SW_B+_PAV_CTRL

iiForewordThis manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required fo

Chapter 1OVERVIEW1.0 CM200 ModelThe control head contains the internal speaker, the on/off/volume knob, the microphone connector, several buttons to o

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-939pFC1095FINAL_CURRENT_SENSEPA_CURRENT120.pC10735113818A0165784U102LM2904R1120662057B05200KR177100FI

4-10 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics5VC20150.1uFC20002.2uFL217390nH 5V120.pC20343VC20052.2uF10nC2023L200390nH3VC2035120.p0.1uFC20162.2u

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-11100.nC2076150.nL2043900pFC20123900pFC2030DNPDNPL203150.nD203C20691.2p6.2pFC2064100.0nL211L20612.5n2

4-12 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsSH301SHIELD19V3V5V3V5V9VRX_ENIF3001C11213.3pFSH300SHIELD14.7pC34118.08n18.08nL309L300C33420.p3.9pC3

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-13TC7W04FU30162C312100nBW_SEL3VU301TC7W04F35U301PWR_GND4GND8VCCR3243.3KD3022.4KR327100nC3132FLTRGND3I

4-14 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics57R01L120120.pC111339.pC109739.pC108811IF502IF503C111439.pC1098120.pCOMP_B+FILT_B+1019447L50010.uC5

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-15POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BRDDETECTOR_AUDIO_SEND_OPT_BRDUNMUTED_RX_AUDIO_SEND_OPT_BRDFL

4-16 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics69VRH68VRL13VSS40VSSL87VSSRXFC9348XIRQ91XTAL76PJ577PJ678PJ794RESET12VDD39VDDL88VDDR92VDDSYN51PI550P

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-171TP408TEST_POINTD3_3V10.KR445Q414R45947.K1.uC49010.KR431VR4006.80D3_3V10.KR444Q415TEST_POINTTP4051B

4-18 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics22.KR1410662057A81C108239pFIF7011INTEGRATOR5180932W01LM2904U10023184120.pC10712113740F5318KR1400662

1-2 OVERVIEWNotes

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-192.1 UHF3 PCB 8486577Z01 Parts List 25-40 WCircuit Ref.Motorola Part No.DescriptionC1000 2113740F53

4-20 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsC1089 2113740F53 CAP CHIP REEL CL1 +/-30 120C1090 NOT PLACED GCAM DUMMY PART NUM-BERC1091 NOT PLACE

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-21C2002 2311049A72 CAP TANT CHIP 10.0UF 10% 10VC2003 2113743K15 CHIP CAP, CER 0.1UFC2004 2113743F18 C

4-22 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsC307 2113743E20 CAP CHIP. 10 UF 10%C308 2113743E20 CAP CHIP. 10 UF 10%C309 2113743E20 CAP CHIP. 10

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-23C5003 2311049A99 CAP TANT CHIP 47 UF 10V 20%C5004 NOT PLACED GCAM DUMMY PART NUM-BERC5005 2360567A0

4-24 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsC5094 2113740F59 CAP CHIP REEL CL1 +/-30 220C5095 2113740F59 CAP CHIP REEL CL1 +/-30 220C5096 21137

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-25D501 NOT PLACED GCAM DUMMY PART NUM-BERD502 4813825A23 DIODE, DISCRETE SPE-CIALS VAR&PD511 4813

4-26 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsQ301 4813824A17 XSTR PNP40V .2A GENPB=100-300Q302 4813824A10 TSTR NPN 40V .2A GEN PURPQ303 4802245J

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-27R189 0662057A97 CHIP RES 100K OHMS 5%R190 0662057C35 CHIP RES 22 OHMS 5%R191 0662057C35 CHIP RES 22

4-28 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsR434 0662057A85 CHIP RES 33K OHM 5%R435 0662057A85 CHIP RES 33K OHM 5%R436 0662057A85 CHIP RES 33K

Chapter 2THEORY OF OPERATION1.0 IntroductionThis Chapter provides a detailed theory of operation for the Control head circuits. For details of the tro

UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics 4-29R5083 0662057B08 CHIP RES 270K OHMS 5%R5084 0662057B47 CHIP RES 0 OHMS +-.050 OHMS (not used in GM3

4-30 UHF 25-40 W Band 3 PCB 8486577Z01 / SchematicsNotes

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-313.0 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics9VCOMP_B+DET_VFWDFILT_SW_B+INTEGRATORPA_BIASPA_CU

4-32 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsC1016C1020C1025C1026J11L111L113L128L130C1006C1010C1011C1023C1108D103D104L114M105M108M109U51623FL301

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-33C417C5099D402R402R403R404R407R600R615VR503VR692VR694VR697VR698VR699C5037C5055C5063C5094C5119D501D51

4-34 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsDIGITALOption BoardKeypad/DisplayAccessory ConnectorEXT_ALARM_OUTEXT_MIC_PTTPROG_INPROG_I/OPROG_I/O

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-35DC & AUDIO(SOURCE)(SOURCE)(SOURCE)(SOURCE)(SOURCE)POWER CONTROLBOA

4-36 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics(SOURCE)DNPPLACED NEAR R122MRF1513’s Thermal padDNPDNPDNPDNPDNPDNPV_CNTRLDNPDNPDNPDNPDNPDNPMRF 1518

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-37DNPDNPDNPDNPDNPDNPDNPDNPDNPDNPDNPDNPDNPCouplerAntenna ConnectorPA’s

4-38 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsLVFRACN ShieldDNPDNPDNPDNPDNPDNPDNPSPI_MOSISPI_CLKMOD_INSYNTH_CSC2048120

2-2 THEORY OF OPERATIONWhen the host radio needs to send date to the shift register, the radio asserts the shift register chip select and the data is

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-39DNPDNPDNPVCOBIC ShieldDNPDNPVCO Shield1SH202SHIELD120.pC203282.R2273.3pC20444.7KR2136.8

4-40 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsFRONT-END SHIELD5V3V3V5V9V9V1SHIELDSH301RX_ENIF3001RXSHIELDSH3001C33818pF3.

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-4117U301TC7W04F100nC31320.KR30662U301TC7W04F100nC3122.4KR327R3243.3KD3020.1uFC316R30520.K3GND1IN2OUTF

4-42 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsSOURCEOn/Off for ATE10K47KSpacer for 10 2201%9.3VDNPDNPDNPDNPDNPDNPDNP

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-43DNPDNPDNPDNPDNPDNPDNPDNPDNPDNPDNPVAG = 4.5VDNPDNPDNPUSE NLAS4599DNPDNP IN

4-44 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics10K10K47K47KSPI_MISOSPI_MOSISPI_CLKASFIC_CSEE_CSSYNTH_CSDISPLAY_CS_CHSHIFT_R_CSDNPDNPDNPDNPDNPDNPDN

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-45DNPDNPDNPDNPDNP10K47K10K47KDNPEXT_ALARM_OUTEXT_MIC_PTTPROG_INPROG_I/0PROG_I/0PROG_I/010K47K47K47K47

4-46 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics2113740F41C108239pFDNPIF7011INTEGRATOR22.KR1410662057A81120.pC10712113740F535180932W01LM2904U100231

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-473.1 UHF3 PCB 8486577Z03 Parts List 25-40 WCircuit Ref.Motorola Part No.DescriptionC1000 2113740F53

4-48 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsC1087 2113740F41 CAP CHIP REEL CL1 +/-30 39C1088 2113740F41 CAP CHIP REEL CL1 +/-30 39C1089 2113740

Control Head Model for CM200 2-3If the BOOT_RES (J802-7) line is connected to >5V (e.g. 9.3V) at turn-on, the uP will start in boot mode instead of

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-49C2000 2113743F18 CAP CHIP 2.2 UF 16V +80-20%C2001 2311049J11 CAPACITOR TANT 10% 4.7UFC2002 2311049A

4-50 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsC304 2113743E20 CAP CHIP. 10 UF 10%C305 2113743E20 CAP CHIP. 10 UF 10%C306 2113743E20 CAP CHIP. 10

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-51C5004 NOT PLACED GCAM DUMMY PART NUM-BERC5005 2360567A03 CAP TANTALUMC5006 2311049A57 CAP TANT CHIP

4-52 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsC5095 2113740F59 CAP CHIP REEL CL1 +/-30 220C5096 2113740F59 CAP CHIP REEL CL1 +/-30 220C5097 21137

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-53D502 4813825A23 DIODE, DISCRETE SPE-CIALS VAR&PD511 4813833C02 DIODE DUAL 70V ‘5B’ COMM CATHD51

4-54 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsQ302 4813824A10 TSTR NPN 40V .2A GEN PURPQ303 4802245J95 BJT, NPN TRANSISTORQ304 4809939C04 TSTR DU

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-55R189 0662057A97 CHIP RES 100K OHMS 5%R190 0662057C35 CHIP RES 22 OHMS 5%R191 0662057C35 CHIP RES 22

4-56 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsR435 0662057A85 CHIP RES 33K OHM 5%R436 0662057A85 CHIP RES 33K OHM 5%R438 0662057A73 CHIP RES 10K

UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics 4-57R5085 NOT PLACED GCAM DUMMY PART NUM-BERR5086 0662057A43 CHIP RES 560 OHMS 5%R5087 0662057A97 CHIP

4-58 UHF 25-40 W Band 3 PCB 8486577Z03 / SchematicsNotes

2-4 THEORY OF OPERATION3.0 Control Head Model for CM300/PM400The control head contains the internal speaker, the on/off/volume knob, the microphone co

Control Head Model for CM300/PM400 2-53.3 Keypad KeysThe control head keypad is a four-key design. All keys are configured as two analog lines read by

2-6 THEORY OF OPERATIONThe HOOK line (J102-6) is used to inform the uP which type of microphone or SCI lead is connected to the microphone socket. The

Chapter 3TROUBLESHOOTING CHARTS1.0 Control Head CM200 Troubleshooting Chart1.1 Control Head FailureBack lightOK ?Check 9.3V on R808, R809NoControl Hea

3-2 TROUBLESHOOTING CHARTS1.2 Button/Tones Select Error (Page 1 of 2)NoCheck Voltage Levels onTP401 (Keypad Col)and TP402 (Keypad Row)(see table on ne

CM200/CM300/PM400RadiosDetailed Service Manual6881098C00-AContentsSection 1 Service MaintainabilitySection 2 Control Head Service InformationSection 3

Control Head CM200 Troubleshooting Chart 3-31.3 Button/Tones Select Error (Page 2 of 2)Key_ColVoltage (TP401)Key_Column Voltage TP4010.008 V 0.675 V 1

3-4 TROUBLESHOOTING CHARTS2.0 Control Head CM300/PM400 Troubleshooting Chart2.1 Control Head FailureBack lightOK ?Check 9.3V on Q12, U1 and associated

Control Head CM300/PM400 Troubleshooting Chart 3-52.2 Button/Tones Select Error (Page 1 of 2)NoCheck Voltage Levels onTP401 (Keypad Col)and TP402 (Key

3-6 TROUBLESHOOTING CHARTS2.3 Button/Tones Select Error (Page 2 of 2)Key_ColVoltage (TP401)Key_Column Voltage TP4010.008 V 0.675 V 1.346 V 1.997 V 2.6

Chapter 4CONTROLHEAD PCB / SCHEMATICS / PARTS LISTS1.0 Allocation of Schematics and Circuit BoardsTable 4-1 Control Head Diagrams and Parts ListsPCB

4-2 CONTROLHEAD PCB / SCHEMATICS / PARTS LISTSNotes

Control Head CM200 - PCB 8488998U01 / Schematics 4-32.0 Control Head CM200 - PCB 8488998U01 / SchematicsSHOWN FROM SIDE 1D801S801D805J802D804SH1DS801S

4-4 Control Head CM200 - PCB 8488998U01 / SchematicsDNPChange to 1%Change to 1%COLROWCOLDNPDNPDNPDNPDNPUPDOWNDNPDNPDNPROWChange to 1%Change to 1%Chang

Control Head CM200 - PCB 8488998U01 / Schematics 4-52.1 Control Head PCB 8488998U01 Parts ListCircuitRefMotorolaPart NoDescriptionC802 2113740F59 CAP

4-6 Control Head CM300/PM400 - PCB 8489714U01 / Schematics3.0 Control Head CM300/PM400 - PCB 8489714U01 / SchematicsC404321Q12R19R26R27R20R241458U1C11

THIS PAGE INTENTIONALLY LEFT BLANKNotes

Control Head CM300/PM400 - PCB 8489714U01 / Schematics 4-710K47K10K47K10K47K10K47K10K47K10K47K9.3 VF1+F2MIC. AUDIOMIC. PTTKEY_ROWKEY_COLSPI_CLK-SPEAKE

4-8 Control Head CM300/PM400 - PCB 8489714U01 / Schematics3.1 Control Head PCB 8489714U01 Parts ListCircuit RefMotorolaPart NoDescriptionC1 NOTPLACED

CM200/CM300/PM400RadiosUHF2 (438-470 MHz) 1-25 WService InformationIssue: November, 2007M

iiComputer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

iiiTable of ContentsChapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS1.0 CM200/CM300/PM400 Model Chart...

iv8.3 Dual Tone Multiple Frequency (DTMF) Data...2-189.0 Receive Audio Circuits...

vUHF2 (438-470 MHz) 1-25 W Power Control Circuit ...4-182.1 UHF2 PCB 8488978U01 (rev. P9) Parts List 1-25 W ...

viNotes

Chapter 1MODEL CHART AND TECHNICAL SPECIFICATIONS1.0 CM200/CM300/PM400 Model ChartUHF2, 1-25 W, 438-470 MHzModel DescriptionAAM50RNC9AA1A CM200 438-47

1-2 MODEL CHART AND TECHNICAL SPECIFICATIONS2.0 Technical SpecificationsData is specified for +25°C unless otherwise stated.GeneralSpecification UHF2F

CM200/CM300/PM400RadiosService MaintainabilityIssue: November, 2007M

Technical Specifications 1-3*Availability subject to the laws and regulations of individual countries.TransmitterSpecification UHF2Power Output 1-25WC

1-4 MODEL CHART AND TECHNICAL SPECIFICATIONSNotes

Chapter 2THEORY OF OPERATION1.0 IntroductionThis Chapter provides a detailed theory of operation for the UHF circuits in the radio. Details of the the

2-2 THEORY OF OPERATION2.2 Receiver Back EndThe IF signal from the crystal filter enters the IF amplifier which provides 20 dB of gain and feeds the I

UHF Transmitter Power Amplifier (438-470 MHz) 2-3power of the PA.Op-amp U103-3 monitors the drain current of U101 via resistor R122 and adjusts the bi

2-4 THEORY OF OPERATION3.6 Harmonic FilterInductors L111 and L113 along with capacitors C1011, C1023, C1020 and C1016 form a low-pass filter to attenu

UHF (438-470 MHz) Frequency Synthesis 2-5This oscillator is temperature compensated to an accuracy of +/-2.5 PPM from -30 to 60 degrees C. The tempera

2-6 THEORY OF OPERATION4.3 Voltage Controlled Oscillator (VCO)The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U201), th

UHF (438-470 MHz) Frequency Synthesis 2-74.4 Synthesizer OperationThe synthesizer consists of a low voltage FRAC-N IC (LVFRAC-N), reference oscillator

2-8 THEORY OF OPERATION5.0 Controller Theory of OperationThis section provides a detailed theory of operation for the radio and its components. The ma

iiComputer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

Controller Theory of Operation 2-9The DC voltage applied to connector P2 supplies power directly to the following circuitry:• Electronic on/off contro

2-10 THEORY OF OPERATIONVoltage regulator U503 provides 5 V for the RF circuits. Input and output capacitors are used to reduce the high frequency noi

Controller Theory of Operation 2-11While the radio is switched on, the µP monitors the voltage at the emergency input on the accessory connector via U

2-12 THEORY OF OPERATION5.5 Serial Peripheral Interface (SPI)The µP communicates to many of the IC’s through its SPI port. This port consists of SPI T

Controller Theory of Operation 2-135.8 Normal Microprocessor OperationFor this radio, the µP is configured to operate in one of two modes, expanded an

2-14 THEORY OF OPERATION5.9 Static Random Access Memory (SRAM)The SRAM (U402) contains temporary radio calculations or parameters that can change very

Transmit Audio Circuits 2-157.0 Transmit Audio CircuitsFigure 2-7 Transmit Audio Paths7.1 Microphone Input PathThe radio supports 2 distinct microphon

2-16 THEORY OF OPERATION7.1.2 Standard MicrophoneHook Pin is shorted to the hook mic inside the standard Mic, If the mic is out off hook, 3.3 V is rou

Transmit Signalling Circuits 2-178.0 Transmit Signalling CircuitsFigure 2-8 Transmit Signalling PathFrom a hardware point of view, there are 3 types o

2-18 THEORY OF OPERATION8.2 High Speed DataHigh speed data refers to the 3600 baud data waveforms, known as Inbound Signaling Words (ISWs) used in a t

iiiTable of ContentsSAFETY INFORMATION ... vChapter 1 INTRODUCT

Receive Audio Circuits 2-199.0 Receive Audio CircuitsFigure 2-9 Receive Audio Paths9.1 Squelch DetectThe radio’s RF circuits are constantly producing

2-20 THEORY OF OPERATION9.2 Audio Processing and Digital Volume ControlThe receiver audio signal (DISC AUDIO) enters the controller section from the I

Receive Signalling Circuits 2-219.4 Handset AudioCertain handheld accessories have a speaker within them which require a different voltage level than

2-22 THEORY OF OPERATIONThe low speed limited data output (PL, DPL, and trunking LS) appears at U504-pin18, where it connects to the µP U403-pin 80.Th

Chapter 3TROUBLESHOOTING CHARTSThis section contains detailed troubleshooting flowcharts. These charts should be used as a guide in determining the pr

3-2 TROUBLESHOOTING CHARTS1.0 Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2)Problem in 12 KHz and 25 KHz channel spacing9V onR310 (LNA)OK?C

Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2) 3-31.1 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)3V(IFIC -Vcc)OK ?InstallationOK

3-4 TROUBLESHOOTING CHARTS2.0 Troubleshooting Flow TX RF (No Output Power)STARTKey the radio usingRadster (type k)NoYesYesNoTune thePA_BIASPress F6 an

Troubleshooting Flow TX RF (No Output Power) 3-52.1 Troubleshooting Flow TX RF (No Output Power/No Current)STARTKey the radio usingRadster (type k)NoY

3-6 TROUBLESHOOTING CHARTS2.2 Troubleshooting Flow TX RF (Not Txing at Nominal power)Press F6 and read the ASFIC byteIs byte#04=0?NoTune the PA_BIASYe

ivNotes

Troubleshooting Flow Chart for Synthesizer 3-73.0 Troubleshooting Flow Chart for Synthesizer5V at pin 6 of D200Isinformationfrom mP U403correct?IsU200

3-8 TROUBLESHOOTING CHARTS4.0 Troubleshooting Flow Chart for VCOAre Q200Base at 2.4V Collector at 4.5V Emitter at 1.7VAre U201 Pins13 at 4.4V15 at 1.1

Troubleshooting Flow Chart for DC Supply (1 of 2) 3-95.0 Troubleshooting Flow Chart for DC Supply (1 of 2)Since the failure of a critical voltage supp

3-10 TROUBLESHOOTING CHARTS5.1 Troubleshooting Flow Chart for DC Supply (2 of 2)Check VDC onC5007V=3.3V?Check Voltage on C5041NoGo to Digital SectionY

Chapter 4UHF2 PCB/ SCHEMATICS/ PARTS LISTS1.0 Allocation of Schematics and Circuit Boards1.1 UHF2 and Controller CircuitsThe UHF circuits are containe

4-2 UHF2 PCB/ SCHEMATICS/ PARTS LISTSNotes

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-32.0 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics9VCOMP_B+DET_VFWDFILT_SW_B+INTEG

4-4 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsSHOWN FROM SIDE 18488978U01_P9C301C302C303C304C305C306C307C308C309C310C311C312C313C314C315C

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics 4-5C300C321C323C324C325C326C327C328C329C330C331C332C333C334C335C338C339C340C341C342C343C344C34

4-6 UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / SchematicsAccessory ConnectorControl Head ConnectorNCPlace capacitors near J2 Place capacitors near J