Motorola GP328 Detailed Service Manual Download Page 34

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4-12

ZMY0130084-E

C408

100pF

C409

0.1uF

2.2uF

C403

C414
0.1uF

100pF

C427

0.1uF

C407

C410

30K

R425

0.1uF

R400

C411

0.1uF

47K

C421

CR440

10K

R448

0.1uF

C415

0.1uF

C430

100pF

C405

10K

R429

4.7uF

R475
0

C452

C422
0.1uF

C419

TP406

Q400

VDDA

VDDCP

VDDD

VDDDAC

VDDRC

VDDSYN

VOX

PLCAP2

SQDET

SQIN

SYN

TXRTN

TXSND

UIO

URXOUT

HSIO

LCAP

LSIO

MICEXT

MICINT

MOD

PLCAP

GCB3

GCB4

GCB5

GNDA

GNDD

GNDD0

GNDRC

GNDSYN

DACR

DACU

DATA

DISC

F1200

GCB0

GCB1

GCB2

AUDIO

AUXRX

AUXTX

CHACT

CLK

CLK168

CSX

DACG

VSS

09Z41

U404

AGCCAP

X25128-2.7

HOLD

SCK

VCC

U407

Q405

R453
NU

R407
68K

C428
0.1uF

C400

C401

.01uF

0.1uF

C479
0.1uF

R413
0

.01uF

C420

R447
100K

C451

.022uF

Q403

100K

R452

15K

R451

CR412

2.7K

R427

R455

R456

R454
NU

R405

R401
0

R402

0.1uF

C402

0.1uF

C406

C480
10uF

R416
10K

24K

R449

GND

INPUT

OUTPUT

SENSE

SHUTDOWN

VTAP

R445

U400
LP2951ACMM-3.3

ERROR

FEEDBACK

TP410

75K

330K

R476

R406

4V_3.3V

0.1uF

C416

OFF_BATT_DATA_OUT

Vdda

BATT_DATA_IN

BATT_CODE

Vddd

Vdda

SQ_DET

LSIO

HSIO

Vddd

INT_EXT_Vdd

Vddd

INT_MIC

UNSWB+

URX_SND

RX_AUD_RTN

CLK

CSX

CHACT

EXT_MIC

TX_AUD_RTN

TX_AUD_SND

FLAT_RX_SND

SWB+

DATA

MISO

16.8MHz

VS_AUDSEL

VS_GAINSEL

DACRx

DEMOD

FROM_RF

EXT_SPKR_SEL

FROM_RF

UDIO_PA_ENA

GREEN_LED

RED_LED

LEDBL

SYN

F1200

EE_CS

VOX

RESET

MODIN

Vdda

AUDIO

FLAT_TX_RTN

Used for Lowband Only

800MHz only

4K x 8 BIT

EEPROM

Controller ASFIC/ON_OFF Schematic Diagram

Summary of Contents for GP328

Page 1: ...GP328 GP338 Portable Radios Detailed Service Manual 6804110J64 F June 2002 ...

Page 2: ...e copyrighted computer program Accordingly any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola Furthermore the purchase of Motorola products shall not be deemed to grant either directly or by implica tion estoppel or otherwise any license under the cop...

Page 3: ... 1999 2000 2001 2002 by Motorola Inc Motorola Technology Sdn Bhd Co No 455657 H Bayan Lepas FIZ Phase III 11900 Penang Malaysia Printed in Malaysia June 2002 ...

Page 4: ......

Page 5: ...and guidelines United States Federal Communications Commission Code of Federal Regulations 47CFR part 2 sub part J American National Standards Institute ANSI Institute of Electrical and Electronic Engineers IEEE C95 1 1992 Institute of Electrical and Electronic Engineers IEEE C95 1 1999 Edition International Commission on Non Ionizing Radiation Protection ICNIRP 1998 Ministry of Health Canada Safe...

Page 6: ... a pacemaker These recommendations are consistent with those of the U S Food and Drug Administration Persons with pacemakers should ALWAYS keep the radio more than 6 inches 15 centimeters from their pacemaker when the radio is turned ON not carry the radio in the breast pocket use the ear opposite the pacemaker to minimize the potential for interference turn the radio OFF immediately if you have a...

Page 7: ... your radio when you are near electrical blasting caps in a blasting area or in areas posted Turn off two way radio Obey all signs and instructions OPERATIONAL CAUTIONS Antennas Do not use any portable radio that has a damaged antenna If a damaged antenna comes into contact with your skin a minor burn can result Batteries All batteries can cause property damage and or bodily injury such as burns i...

Page 8: ...iv ...

Page 9: ...plete Controller Schematic Diagram 4 5 Controller ASFIC ON_OFF Schematic Diagram 4 6 Controller Micro Processor Schematic Diagram 4 7 Controller Memory Schematic Diagram 4 8 Controller Audio Power Amplifier Schematic Diagram 4 9 Controller Interface Schematic Diagram 4 10 3 4 Controller Schematics 330 400MHz for 8485726Z04 403 470MHz for 8480450Z13 450 527MHz for 8485641Z06 4 11 Complete Controlle...

Page 10: ...chematic Diagram 4 32 Controller Interface and Memory Schematic Diagram 4 33 Controller Audio Power Amplifier Schematic Diagram 4 34 Section 5 Keypad Board Information 1 0 Theory of Operation 5 1 2 0 Troubleshooting Chart 5 2 3 0 Parts List Keypad Basic 5 3 4 0 Keypad Board And Schematic Diagram 5 5 Keypad Board Top and Bottom View PCB No 8480574Z05 5 5 Keypad Board Schematic Diagram 5 6 Section 6...

Page 11: ... 39 Troubleshooting Flow Chart for Controller 6A 39 Troubleshooting Flow Chart for Receiver Sheet 1 of 2 6A 40 Troubleshooting Flow Chart for Receiver Sheet 2 of 2 6A 41 Troubleshooting Flow Chart for Transmitter 6A 42 Troubleshooting Flow Chart for Synthesizer 6A 43 Troubleshooting Flow Chart for VCO 6A 44 Section 6B Model Chart and Test Specifications 136 174 Mhz 1 0 Model Chart 6B 1 2 0 Specifi...

Page 12: ...6B 42 Troubleshooting Flow Chart for Receiver Sheet 2 of 2 6B 43 Troubleshooting Flow Chart for Transmitter 6B 44 Troubleshooting Flow Chart for Synthesizer 6B 45 Troubleshooting Flow Chart for VCO 6B 46 Section 6C Model Chart and Test Specifications 450 527 Mhz 1 0 Model Chart 6C 1 2 0 Specifications 6C 2 3 0 Transmitter 6C 3 3 1 General 6C 3 4 0 Receiver 6C 5 4 1 Receiver Front End 6C 5 4 2 Rece...

Page 13: ...art for Transmitter 6C 40 Troubleshooting Flow Chart for Synthesizer 6C 41 Troubleshooting Flow Chart for VCO 6C 42 Section 6D Model Chart and Test Specifications 330 400 Mhz 1 0 Model Chart 6D 1 2 0 Specifications 6D 2 3 0 Transmitter 6D 3 3 1 General 6D 3 4 0 Receiver 6D 5 4 1 Receiver Front End 6D 5 4 2 Receiver Back End 6D 6 4 3 Automatic Gain Control Circuit 6D 7 5 0 Frequency Generation Circ...

Page 14: ...tions 29 42 35 50Mhz 1 0 Model Charts 6E 1 1 1 29 42MHz 6E 1 1 2 35 50MHz 6E 2 2 0 Specifications 6E 3 3 0 Transmitter 6E 4 3 1 General 6E 4 4 0 Receiver 6E 6 4 1 Receiver Front End 6E 6 4 2 Receiver Back End 6E 7 4 3 Automatic Gain Control Circuit 6E 7 5 0 Frequency Generation Circuitry 6E 8 5 1 Synthesizer 6E 9 5 2 VCO Voltage Controlled Oscillator 6E 10 6 0 Notes For All Schematics and Circuit ...

Page 15: ...er 6E 28 Troubleshooting Flow Chart for Synthesizer 6E 29 Troubleshooting Flow Chart for VCO 6E 30 Section 7 Flex Layout Schematic Diagrams and Parts Lists 1 0 Keypad Controller Interconnect Flex 7 1 2 0 Schematic for Keypad Controller Interconnect Flex 7 1 3 0 Parts List for Keypad Controller Interconnect Flex 7 2 4 0 Universal Connector Flex 7 2 5 0 Schematic for Universal Connector Flex 7 3 6 0...

Page 16: ...xii ...

Page 17: ...owing notes are for guidance purposes only 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 This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty Prior to shipping any radio back...

Page 18: ...our local AAD office Please refer to your latest price pages 2 4 Technical Support Technical support is available to assist the dealer distributor in resolving any malfunction which may be encountered Initial contact should be by telephone wherever possible When contacting Motorola Technical Support be prepared to provide the product model number and the unit s serial number Toll Free Non Toll Fre...

Page 19: ...l readout soldering station incl 1 64 micropoint tip Illuminated magnifying glass with lens attachment For 0180382A31 portable desoldering unit 0180386A82 6684253C72 6680384A98 1010041A86 1080370B43 Anti static grounding kit Straight prober Brush Solder RMA type 63 37 0 020 diameter 1 lb spool RMA liquid flux Used during all radio assembly and disassem bly procedures R 1070A or R 1319A Shields and...

Page 20: ...2 2 Recommended Test Tools ...

Page 21: ...m Error NOTE Radio without display emits only bonk 300 Hz tone if it fails the self test Error Code Explanation Corrective Action RAM TST ERROR RAM Test Failure Retest radio by turning it off and turning it on again If message reoccurs replace RAM U405 ROM CS ERROR ROM Checksum is wrong Reprogram FLASH Memory then retest If message reoccurs replace ROM U406 EEPRM HW ERROR Codeplug structure mismat...

Page 22: ...3 2 Error Codes ...

Page 23: ..._CMP to turn on GCB4 DAC GCB4 will take over the momentary on path within 12ms SWB will continue to support the whole board until the radio is turned off Radio will be turned off on two conditions 1 MECH_SWB turned off 2 Low battery Figure 4 1 DC Power Distribution Block Diagram Control On Off Switch SWB Fuse Low Battery Detect Ant SW PCIC ALC PA Driver LI Ion 3 5V Reg 7 5V Audio PA 4 0V 3 3V Vddd...

Page 24: ...consists of a special Motorola microcontroller HC11FL0 The audio power amplifier Audio PA and audio signalling filter companding IC ASFIC_CMP form the backbone of the audio signalling architecture Figure 4 2 Controller Block Diagram External Microphone Internal Microphone External Speaker Internal Speaker SCI to Side Connector Audio PA Audio Signalling Architecture To Synthesizer Mod Out 16 8 MHz ...

Page 25: ... Vstby pin and PI6 PI7 form the crystal oscillator circuit Clock frequency of 38 4kHz from a crystal oscillator provides the reference signal In the processor the frequency is divided down to 1Hz As the RTC module is powered separately from the processor Vdd the RTC is kept alive through the ModB Vstby pin when the radio is switched off A small button Lithium Ion battery continues to feed the RTC ...

Page 26: ...ition Circuit Operation Radio On Vdd supply voltage via CR411 Radio Off Vdd turned off Q416 gate is pulled low by R462 Q416 is switched on U410 supplies 3 2V to ModB Vstby Primary battery removed Vdd turned off Q416 gate is pulled low by R462 Q416 is switched on LiO battery provides 3 2V to ModB Vstby Flash Mode Boot_Ctrl line pull low ModA ModB goes low Processor in boot strap mode Flashing enabl...

Page 27: ...B DEMOD RSSI 16 8MHz RTA2 RTA3 MECH_SWB VOL PTT LVZIF_SEL SWB DACRx RED_LED GREEN_LED SB1 SB2 SB3 EMER RTA0 RTA1 IF_Vdda_CTRL IF_LVZIF_SEL_CTRL IF_16 8MHz_CTRL IF_EMER_CTRL IF_CSX_CTRL IF_LI_ION_CTRL IF_SB3_CTRL IF_RESET_CTRL IF_DATA_CTRL IF_5V_CTRL IF_BATT_CODE_CTRL IF_SWB _CTRL IF_GREEN_LED_CTRL IF_SB2_CTRL IF_VOL_CTRL IF_4V_3 3V_CTRL IF_CLK_CTRL IF_UNSWB _CTRL IF_LOCK_CTRL IF_PTT_CTRL IF_MECHSW...

Page 28: ...MEG MECH_SWB CR440 1 2 3 39K R416 1 3 2 Q403 Q405 2 4 1 3 C402 0 1uF C403 10uF 3 1 2 Q400 75K R406 UNSWB 2 7K R427 5 3 1 2 4 CR412 BATT_CODE Vddd 27 36 32 33 26 25 28 31 30 29 35 34 C416 0 1uF SYN F1200 TX_AUD_RTN 16 8MHz RED_LED C419 NU DATA CLK CSX CHACT SQ_DET LSIO HSIO EXT_SPKR_SEL AUDIO_PA_ENA GREEN_LED Vddd BATT_DATA_IN OFF_BATT_DATA_OUT R476 24K OUTPUT SENSE SHUTDOWN VTAP ERROR FEEDBACK GND...

Page 29: ...6 25 24 23 22 29 28 30 31 32 33 34 35 36 37 46 45 44 43 42 41 38 47 16 20 19 17 18 5 6 97 98 99 100 1 2 3 79 80 81 82 83 84 85 86 93 91 12 92 69 68 90 95 39 88 59 C431 100pF 100pF C449 C453 100pF C423 100pF R411 10K 100pF C456 KEY_INT RESET R_W RTA0 RTA2 RTA3 SB1 SB2 SB3 OFF_BATT_DATA_OUT RTA1 VS_RAC VOL RSSI VOX KEYPAD_COL KEYPAD_ROW EMER OPT_SEL1 OPT_ENA LOCK VS_INT PTT C436 22pF GND IN OUT 2 1 ...

Page 30: ...28 EN_CE EN_OE EN_WE VCC FLASH_EN U406 AT49BV020 8 30 32 7 0 R492 NU R408 XA18 C429 0 1uF 100K R410 FLASH_OE 2 2 R428 C424 10uF VSS 14 WE OE CS 27 22 20 D0 D1 D2 D3 D4 D5 D6 D7 D2 D3 D4 D5 D6 D7 D8 D1 RAM 12 13 15 16 17 18 19 11 A4 A5 A6 A7 A8 A9 A1 A10 A11 A12 A13 A14 A2 A3 A0 VDD 28 U405 SRM2B256 6 5 4 3 25 24 9 21 23 2 26 1 8 7 10 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 RAM_CS C425 0 ...

Page 31: ...492 100pF C491 5 6V VR433 C497 100pF 100pF C496 C495 100pF C494 100pF 5 6V VR432 FLAT_RX_SND SCI_RX SCI_TX RSSI BOOT_CTRL C441 100pF L400 390nH R421 2K INT_MIC 2K R435 C444 100pF R436 0 C440 4 7uF R477 1K 100pF C445 390nH L401 C443 0 1uF EXT_MIC C442 0 1uF 10 R473 10uF C475 UNSWB AUDIO 0 1uF C447 3 6K R472 0 1uF C448 36K R424 R431 470K VCC1 VCC2 OUT1NEG OUT1POS OUT2NEG OUT2POS SELECT SVR IN1NEG IN...

Page 32: ... J400 28 J400 21 J400 27 J400 37 J400 36 J400 30 J400 29 J400 22 J400 3 J400 19 J400 8 J400 12 J400 6 J400 24 J400 1 J400 38 J400 10 J400 16 J400 7 EXT_MIC VS_CS SW_B Vddd VS_AUDSEL Det_Aud_Snd Rx_Aud_Rtn Tx_Aud_Snd Tx_Aud_Rtn Flat_Tx_Rtn Opt_Bd_En Rdy Req Rx_Aud_Snd ON INT_EXT_Vdd Key_Row Key_Col PTT Key_Intrp VS_INT RST LED_EN OFF_BATT_DATA_OUT VS_GAINSEL SrD_Rtn SrD_Snd R W CS DB0 DB1 DB2 DB3 D...

Page 33: ...SH_OE RAM_CS FLASH_EN R_W XA18 A4 A5 A6 A7 A8 A9 A0 A1 A10 A11 A12 A13 A14 A15 A16 A17 A2 A3 RAM_CS R_W Vddd XA18 FLASH_EN FLASH_OE D0 D1 D2 D3 D4 D5 D6 D7 MEMORY MICRO_P AUDIO_PA ASFIC VS_INT KEY_INT LOCK PTT EMER KEY_INT PTT EMER VS_INT LOCK A14 A15 A16 A17 A2 A3 A4 A5 A6 A7 A8 A9 A0 A1 A10 A11 A12 A13 LVZIF_SEL VS_CS LCD_SEL VS_CS Vddd XA18 R_W LCD_SEL LVZIF_SEL RAM_CS D0 D1 D2 D3 D4 D5 D6 D7 F...

Page 34: ... VCC 8 2 4 1 3 U407 Q405 R453 NU R407 68K C428 0 1uF C400 C401 01uF 0 1uF C479 0 1uF R413 0 01uF C420 R447 100K C451 1 3 2 022uF Q403 100K R452 2 K3 1 15K R451 CR412 A1 4 A2 5 A3 6 K1 3 K2 2 7K 0 R427 R455 R456 R454 NU NU NU 0 R405 R401 0 R402 0 1uF C402 0 1uF C406 C480 10uF R416 10K 24K 24K R449 GND 4 INPUT 8 OUTPUT 1 SENSE 2 SHUTDOWN 3 VTAP 6 R445 1 U400 LP2951ACMM 3 3 ERROR 5 FEEDBACK 7 TP410 7...

Page 35: ...A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 U409 MC68HC11FLO Q416 1 2 3 P06 LVIN PD5_SS PD4_SCK PD3_MOSI PD2_MISO PD1_TXD PD0_RXD PA7_PA1_OC1 PA6_OC2_OC1 PA3_IC4_OC5_OC1 PA2_IC1 PA1_IC2 PA0_IC3 EXTAL XTAL PA5_OC3_OC1 PA4_OC4_OC1 VRL VRH VDDSYN XFC LVOUT VDD VDDR VDDL AVDD 3 2 1 100 99 98 97 86 85 84 83 82 81 80 90 91 68 69 92 93 79 95 12 88 39 59 ECLK IRQ XIRQ RESET PG7_R_W MODA_LIR PJ0_CSGP3 PJ1_CSGP4 ...

Page 36: ...A5 A6 RAM RAM_CS R_W XA18 C429 0 1uF R410 100K FLASH_OE R408 R492 0 FLASH_EN NU D2 D4 D5 D0 D1 D6 D7 D3 29 EN_CE 30 EN_OE 32 EN_WE 7 VCC 8 2 D0 21 D1 22 D2 23 D3 25 D4 26 D5 27 D6 28 D7 A2 18 A3 17 A4 16 A5 15 A6 14 A7 13 A8 3 A9 31 A11 1 AT49HLV010 U406 A0 20 A1 19 A10 FLASH ROM A17 A16 A15 A14 A13 A12 A11 A10 A1 A0 A9 A8 A7 A6 A5 A4 A3 A2 GND 24 A18 A12 12 A13 4 A14 5 A15 11 A16 10 A17 6 9 XA18 ...

Page 37: ...F 390nH L400 BOOT_CTRL FLAT_RX_SND SCI_RX SCI_TX RSSI VR432 5 6V OPT_SEL2 OPT_SEL1 SWB 68 R450 100pF C495 C496 100pF 10 0V VR450 100pF 100pF C497 C494 VR433 5 6V 100pF C490 C492 100pF C491 100pF C493 100pF M401 100pF C471 100pF C473 100pF C472 R477 1K 10 0V VR449 VR445 10 0V VR448 10 0V 10 0V VR447 VR446 10 0V J403 20 PIN CONNECTOR J403 1 J403 7 J403 6 J403 4 J403 9 J403 8 J403 5 J403 3 J403 2 J40...

Page 38: ...C525 100pF EXT_MIC VS_CS J400 40 PIND CONNECTOR J400 31 J400 30 J400 35 J400 36 J400 39 J400 40 J400 27 J400 38 J400 28 J400 37 J400 32 J400 29 J400 33 J400 34 J400 24 J400 15 J400 25 J400 16 J400 11 J400 12 J400 19 J400 18 J400 17 J400 21 J400 13 J400 20 J400 14 J400 22 J400 26 J400 23 J400 3 J400 4 J400 5 J400 7 J400 6 J400 8 J400 9 J400 10 J400 1 J400 2 OFF_BATT_DATA_OUT VS_GAINSEL SrD_Rtn SrD_...

Page 39: ... RTA2 RTA3 MECH_SWB VOL PTT LVZIF_SEL SWB DACRx RED_LED GREEN_LED SB1 SB2 SB3 EMER RTA0 RTA1 IF_Vdda_CTRL IF_LVZIF_SEL_CTRL IF_16 8MHz_CTRL IF_EMER_CTRL IF_CSX_CTRL IF_LI_ION_CTRL IF_SB3_CTRL IF_RESET_CTRL IF_DATA_CTRL IF_5V_CTRL IF_BATT_CODE_CTRL IF_SWB _CTRL IF_GREEN_LED_CTRL IF_SB2_CTRL IF_VOL_CTRL IF_4V_3 3V_CTRL IF_CLK_CTRL IF_UNSWB _CTRL IF_LOCK_CTRL IF_PTT_CTRL IF_MECHSWB _CTRL IF_RTA1_CTRL...

Page 40: ...5MEG MECH_SWB CR440 1 2 3 39K R416 1 3 2 Q403 Q405 2 4 1 3 C402 0 1uF C403 10uF 3 1 2 Q400 75K R406 UNSWB 2 7K R427 5 3 1 2 4 CR412 BATT_CODE Vddd 27 36 32 33 26 25 28 31 30 29 35 34 C416 0 1uF SYN F1200 TX_AUD_RTN 16 8MHz RED_LED C419 NU DATA CLK CSX CHACT SQ_DET LSIO HSIO EXT_SPKR_SEL AUDIO_PA_ENA GREEN_LED Vddd BATT_DATA_IN OFF_BATT_DATA_OUT R476 24K OUTPUT SENSE SHUTDOWN VTAP ERROR FEEDBACK GN...

Page 41: ...26 25 24 23 22 29 28 30 31 32 33 34 35 36 37 46 45 44 43 42 41 38 47 16 20 19 17 18 5 6 97 98 99 100 1 2 3 79 80 81 82 83 84 85 86 93 91 12 92 69 68 90 95 39 88 59 C431 100pF 100pF C449 C453 100pF C423 100pF R411 10K 100pF C456 KEY_INT RESET R_W RTA0 RTA2 RTA3 SB1 SB2 SB3 OFF_BATT_DATA_OUT RTA1 VS_RAC VOL RSSI VOX KEYPAD_COL KEYPAD_ROW EMER OPT_SEL1 OPT_ENA LOCK VS_INT PTT C436 22pF GND IN OUT 2 1...

Page 42: ... 28 EN_CE EN_OE EN_WE VCC FLASH_EN U406 AT49BV020 8 30 32 7 0 R492 NU R408 XA18 C429 0 1uF 100K R410 FLASH_OE 2 2 R428 C424 10uF VSS 14 WE OE CS 27 22 20 D0 D1 D2 D3 D4 D5 D6 D7 D2 D3 D4 D5 D6 D7 D8 D1 RAM 12 13 15 16 17 18 19 11 A4 A5 A6 A7 A8 A9 A1 A10 A11 A12 A13 A14 A2 A3 A0 VDD 28 U405 SRM2B256 6 5 4 3 25 24 9 21 23 2 26 1 8 7 10 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 RAM_CS C425 0...

Page 43: ...C492 100pF C491 5 6V VR433 C497 100pF 100pF C496 C495 100pF C494 100pF 5 6V VR432 FLAT_RX_SND SCI_RX SCI_TX RSSI BOOT_CTRL C441 100pF L400 390nH R421 2K INT_MIC 2K R435 C444 100pF R436 0 C440 4 7uF R477 1K 100pF C445 390nH L401 C443 0 1uF EXT_MIC C442 0 1uF 10 R473 10uF C475 UNSWB AUDIO 0 1uF C447 3 6K R472 0 1uF C448 36K R424 R431 470K VCC1 VCC2 OUT1NEG OUT1POS OUT2NEG OUT2POS SELECT SVR IN1NEG I...

Page 44: ... J400 28 J400 21 J400 27 J400 37 J400 36 J400 30 J400 29 J400 22 J400 3 J400 19 J400 8 J400 12 J400 6 J400 24 J400 1 J400 38 J400 10 J400 16 J400 7 EXT_MIC VS_CS SW_B Vddd VS_AUDSEL Det_Aud_Snd Rx_Aud_Rtn Tx_Aud_Snd Tx_Aud_Rtn Flat_Tx_Rtn Opt_Bd_En Rdy Req Rx_Aud_Snd ON INT_EXT_Vdd Key_Row Key_Col PTT Key_Intrp VS_INT RST LED_EN OFF_BATT_DATA_OUT VS_GAINSEL SrD_Rtn SrD_Snd R W CS DB0 DB1 DB2 DB3 D...

Page 45: ...INT_EXT_Vdd KEYPAD_COL ON A0 VS_RAC CLK INTERFACE MEMORY MICRO_P ASFIC AUDIO_PA SWB RESET UNSWB MISO DATA CSX CLK 4V_3 3V VS_AUDSEL VS_GAINSEL Vddd DEMOD DACRX VS_AUDSEL VS_GAINSEL Vddd 4V_3 3V DACRX DEMOD RESET SQ_DET SWB SYN UNSWB VOX F1200 HSIO LSIO MISO BATT_DATA_IN CHACT CLK CSX DATA EE_CS Vdda EXT_MIC EXT_SPKR_SEL FLAT_RX_SND INT_MIC 5V AUDIO AUDIO_PA_ENA RX_AUD_RTN TX_AUD_RTN TX_AUD_SND URX...

Page 46: ...D_RTN Vdda DEMOD FLAT_RX_SND VOX VS_AUDSEL VS_GAINSEL DACRx C430 0 1uF C415 0 1uF 022uF C451 0 1uF C414 C452 1uF DATA CLK CSX CHACT SQ_DET LSIO HSIO EXT_SPKR_SEL AUDIO_PA_ENA GREEN_LED 01uF C419 16 8MHz RED_LED TX_AUD_RTN 5V Vddd 0 1uF C428 C427 100pF R429 10K EE_CS 3 1 7 6 5 U407 X25128 2 7 WP CS HOLD SCK SI SO VCC VSS 4 2 8 MISO 4Kx8 BIT EEPROM 4V_3 3V R402 NU R405 0 SWB Vddd C401 0 1uF 68K R407...

Page 47: ...0 79 93 92 45 44 43 42 41 38 20 19 17 18 5 47 46 6 16 31 32 33 34 30 35 36 37 54 53 52 51 50 49 56 55 26 25 24 23 22 29 28 27 11 9 21 15 8 7 14 10 48 73 74 75 76 77 78 94 71 72 4 89 96 58 57 66 65 64 63 62 61 60 67 13 40 87 70 VST CSGP3 CSGP4 Vddd Vddd 100pF C453 100pF C449 100pF C431 C423 100pF 10K R411 C456 100pF 39 88 12 95 59 U409 MC68HC11FL0 PH1_PW2 PH2_PW3 PH3_PW4 PH4_CSIO PH5_CSGP1 PH6_CSGP...

Page 48: ...CS 14 VSS FLASH_OE R410 100K RAM_CS R_W RAM 10uF C424 2 2 R428 Vddd C429 0 1uF 10K R478 NU R408 NU 0 R492 FLASH_EN VCC 8 EN_WE EN_CE EN_OE 7 30 32 A4 16 A5 15 A6 14 A7 13 A8 3 2 A2 18 A3 17 A0 20 A1 19 A9 A13 4 A14 5 A15 11 A16 10 A17 6 A18 9 A10 31 A11 1 A12 12 A9 A10 A11 A12 A13 A14 A15 A16 A17 A7 A8 A0 A1 A2 A3 A4 A5 A6 AT49LV040 U406 D2 23 D3 25 D4 26 D5 27 D6 28 D7 29 D0 21 D1 22 D0 D1 D2 D3 ...

Page 49: ...330 R434 C443 0 1uF 2K R435 0 R436 2K R421 390nH L401 C445 470pF 390nH L400 C440 4 7uF C441 470pF 5 6V VR432 M401 C495 470pF 470pF C496 C494 100pF 470pF C497 VR433 5 6V 10 0V VR450 100pF C493 470pF C490 C492 470pF C491 470pF R477 1K 6 8V VR460 VR434 6 8V R450 68 C473 470pF C472 470pF C471 470pF C483 470pF 470pF C484 10 0V VR448 VR447 10 0V VR449 10 0V J403 20 PIN CONN J403 15 J403 19 J403 16 J403 ...

Page 50: ... J400 33 J400 14 J400 7 VS_GAINSEL SrD_Rtn SrD_Snd R W LCD_SEL DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 A0 SCK_Snd VS_RAC Gnd EXT_MIC VS_CS SW_B Vddd VS_AUDSEL Det_Aud_Snd Rx_Aud_Rtn Tx_Aud_Snd Tx_Aud_Rtn Flat_Tx_Rtn Opt Bd_En Rdy Rea Rx_Aud_Snd ON INT_EXT_Vdd Key_Row Key_Col PTT Key_Intrp VS_INT RST LED_EN OFF_BATT_DATA_OUT J400 40 PINS CONNECTOR KEYPAD_ROW KEYPAD_COL Vddd LCD_SEL LEDBL KEY_INT INT_EXT_Vd...

Page 51: ...da Vdda CONTROLLER 16 8MHz 4V_3 3V 5V BATT_CODE CLK CSX DACRx DATA DEMOD EMER GREEN_LED LI_ION LOCK LVZIF_SEL MECH_SWB SB3 SB1 RTA2 RTA0 RED_LED LI_ION EMER BATT_CODE RESET VOL 16 8MHz 4V_3 3V DATA DEMOD MODIN LVZIF_SEL DACRx CLK RSSI CSX LOCK GREEN_LED RTA1 RTA3 SB2 PTT 5V MECH_SWB UNSWB SWB Controller Hierarchical Diagram ...

Page 52: ...T GREEN_LED RED_LED RTA1 CSX MODIN IF_LI_ION_CTRL IF_SB3_CTRL BATT_CODE LI_ION 4V_3 3V RESET RX_AUD_RTN R_W SWB TX_AUD_RTN TX_AUD_SND URX_SND VS_AUDSEL VS_CS VS_GAINSEL VS_INT VS_RAC Vddd D6 D7 DATA EXT_MIC FLAT_RX_SND FLAT_TX_RTN INT_EXT_Vdd KEYPAD_COL KEYPAD_ROW KEY_INT LCD_SEL LEDBL MISO OFF_BATT_DATA_OUT OPT_ENA PTT RDY SB2 UNSWB A0 CLK D0 D1 D2 D3 D4 D5 IF_DATA_CTRL RSSI DEMOD IF_BATT_CODE_CT...

Page 53: ...ND 44 UIO 24 LSIO 18 MICEXT 48 MICINT 46 MOD 40 NC 26 PLCAP 8 PLCAP225 43 37 GCB5 38 GNDA 3 GNDD31 30 GNDDO GNDRC 47 GNDSYN 23 HSIO 19 LCAP 4 DATA 22 DISC 2 F120029 GCB0 15 GCB1 14 GCB2 13 GCB335 GCB4 41 42 AUXTN CHACT 16 CLK 21 CLK16834 CSX 20 DACG 6 DACR 5 DACU 63A53 U404 AUDIO C421 0 1uF C412 10uF C406 0 1uF 0 1uF C410 C480 2 2uF R446 200K R447 R416 39K 1 6MEG 0 1uF C411 0 5pF C419 0 1uF C402 0...

Page 54: ...MOSI 1 PD4_SCK 2 PD5_SS 7 PB7_ADDR15 14 PBO_ADDR8 30 PC0_DATA0 31 PC1_DATA1 32 PC2_DATA2 33 PC3_DATA3 34 PC4_DATA4 35 PC5_DATA5 PA6_OC2_OC1 85 86 PA7_PA1_OC1 10 PB1_ADDR9 11 PB2_ADDR10 PB3_ADDR11 9 21 PB4_ADDR12 15 PB5_ADDR13 8 PB6_ADDR14 MODA_LIR 58 57 MODB_VSTBY 79 PA0_IC3 80 PA1_IC2 81 PA2_IC1 82 PA3_IC4_OC5_OC1 83 PA4_OC4_OC1 84 PA5_OC3_OC1 U409 MC68HC11FL0 59 AVDD 70 AVSS 89 ECLK 90 EXTAL 96 ...

Page 55: ... A10 23 A11 2 A12 26 A13 1 A14 EN_WE 7 GND 24 NC 9 VCC 8 SRM2B256 U405 D2 23 D3 25 D4 26 D5 27 D6 28 D7 29 EN_CE 30 EN_OE 32 A4 16 A5 15 A6 14 A7 13 A8 3 A9 2 D0 21 D1 22 A12 12 A13 4 A14 5 A15 11 A16 10 A17 6 A2 18 A3 17 AT49BV020 U406 A0 20 A1 19 A10 31 A11 1 10K R478 R492 0 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 A14 XA18 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A17 A16 A15 A13 A12 R_W F...

Page 56: ...440 2 2uF C438 2 2uF 11 VCC2 VR446 10 0V NC5 19 18 OUT1NEG 3 OUT1POS 13 OUT2NEG 8 OUT2POS 6 SELECT 5 SVR 20 VCC1 16 IN1POS 14 IN2NEG 15 IN2POS 4 MODE NC1 2 NC2 7 NC3 9 NC4 12 TDA8547 U420 1 GND1 10 GND2 17 IN1NEG VR448 10 0V J403 15 3 NU 10K R499 Q411 2 6 4 1 M401 NU C495 100pF 100pF VR434 C494 390nH 6 8V J403 17 L401 J403 20 100pF C496 1K R477 J403 12 J403 19 L400 390nH 10 0V VR447 J403 9 C493 10...

Page 57: ... being pressed it will send a message to the microprocessor through the output KEY_INT telling it that a key has been pressed The microprocessor will then sample the Analog to Digital voltages at the keypad row and keypad column and map it with the table so that the key being pressed can be identified Once the key has been identified the message that corresponds to the key will show up at the disp...

Page 58: ...eshooting Chart 2 0 Troubleshooting Chart Figure 5 2 Keypad Board Troubleshooting Chart Display Keypad LED End Disconnect and reconnect 18 pin flex Disconnect and reconnect 40 pin flex ON OFF OFF ON IF STILL OFF ...

Page 59: ...7 2480640Z01 Ind Bead E638 2480640Z01 Ind Bead E639 2480640Z01 Ind Bead E640 2480640Z01 Ind Bead E641 2480640Z01 Ind Bead E642 2480640Z01 Ind Bead E643 2480640Z01 Ind Bead E644 2480640Z01 Ind Bead E645 2480640Z01 Ind Bead J601 0980521Z01 44 pin connector J602 0905505Y03 18 pin connector Q601 4805128M67 MMBT3906 tran sistor PNP Q602 4880214G02 MMBT3904 tran sistor NPN Q603 4880214G02 MMBT3904 tran ...

Page 60: ...5 4 Parts List Keypad Basic ...

Page 61: ...15 R616 R617 R620 C614 R602 R603 R607 R604 R608 R605 R609 R610 R626 J602 18 1 R601 R631 C621 R618 R649 C616 Q601 Q602 Q603 R619 R648 R647 C609 C622 R611 R612 R613 R625 R630 E639 E641 E643 E645 R628 E638 E640 E642 E644 E634 R627 R629 C611 C615 R622 R633 R646 U602 C610 C619 C620 E637 R623 R632 C617 C618 2 C612 C613 J601 40 39 R606 R621 ZMY0130490 O Keypad Board Top and Bottom View PCB No 8480574Z05 ...

Page 62: ... 17 J601 15 J601 16 J601 13 J601 19 J601 18 J601 39 CLK VS_RAC C647 51pF C646 100pF E634 A0 51K R601 13K R603 R602 51K KEYPAD_COL Vddd KEYPAD_ROW 43K R605 130K R606 130K R610 R604 R609 43K 22K R608 22K 13K R607 ROW2 COL2 COL3 ROW3 ROW4 COL5 ROW5 C609 R612 560K 1MEG R613 R611 51K 4 3 1 2 5 U602 LMC7211 Vddd KEY_INT Vddd NU KEYPAD_COL COL2 IN 4 OUT1 1 OUT2 2 M619 SWITCH GND 3 M616 GND 3 IN 4 OUT1 1 ...

Page 63: ...5_ GP328 Tanapa 403 470 MHz 4W 4CH X PMUE1448_ GP328 Tanapa 403 470 MHz 4W X PMUE1406_ GP338 Tanapa 403 470 MHz 4W X PMLE4171_ GP328 B C Kit 403 470 MHz 4W 4CH X PMLE4130_ GP328 B C Kit 403 470 MHz 4W X PMLE4109_ GP338 B C Kit 403 470 MHz 4W X PMLN4348_ GP328 Front Housing Kit 4CH X PMLN4216_ GP328 Front Housing Kit X PMLN4199_ GP338 Front Housing Kit X X X NAE6483_ UHF 16 cm Monopole Whip antenna...

Page 64: ...0 MHz 4W X PMUE1921_ GP338 Super Tanapa 403 470 MHz 4W X PMUE1924_ GP328 Tanapa 403 470 MHz 4W X PMUE1920_ GP328 Tanapa 403 470 MHz 4W X PMUE1928_ GP338 Tanapa 403 470 MHz 4W X PMUE1922_ GP338 Tanapa 403 470 MHz 4W X X PMLE4130_ GP328 B C Kit 403 470 MHz 4W X X PMLE4109_ GP338 B C Kit 403 470 MHz 4W X PMLN4539_ GP328 Front Housing Kit X PMLN4544_ GP328 Front Housing Kit X PMLN4538_ GP338 Front Hou...

Page 65: ...Passes rain testing per IP54 Shock Meets MIL STD 810 C D E and TIA EIA 603 Vibration Meets MIL STD 810 C D E and TIA EIA 603 Dust Meets MIL STD 810 C D E and IP54 Humidity Meets MIL STD 810 C D E and TIA EIA 603 FCC ID AZ489FT4826 UHF RF Output NiMH 7 5V Low 1W High 4W Frequency 403 470 MHz Channel Spacing 12 5 20 25 kHz Freq Stability 30 C to 60 C 0 00025 Spurs Harmonics 36 dBm 1 GHz 30 dBm 1 GHz...

Page 66: ...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 160mA while operating in the frequency range of 403 470MHz 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 1300mA while operating in the frequency ...

Page 67: ...rk which is made up of L116 is used to match the antenna s impedance to the harmonic filter This will optimize the performance of the transmitter and receiver into an antenna 3 1 5 Power Control Integrated Circuit PCIC The transmitter uses the Power Control IC PCIC U102 to regulate the power output of the radio The current to the final stage of the power module is supplied through R101 which provi...

Page 68: ...ssor Depending on the carrier frequency the DACRx will supply the tuned voltage to the varactor diodes in the filter Wideband operation of the filter is achieved by shifting the bandpass filter across the band The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307 After being amplified by the RF amplifier the RF signal is further filtered by a second varactor tun...

Page 69: ...iltering once externally provided by the conventional ceramic filters is replaced by internal filters in the IF module U301 The IF IC uses a type of direct conversion process whereby the externally generated second LO frequency is divided by two in U301 so that it is very close to the first IF frequency The IF IC U301 synthesizes the second LO and phase locks the VCO to track the first IF frequenc...

Page 70: ...5 is an NPN transistor used for switching here Maximum current flowing through the PIN is mainly limited by the resistor R319 Radio signal strength indicator RSSI a voltage signal is used to drive Q315 to saturation hence turning it on RSSI is produced by U301 and is proportional to the gain of the RF amplifier and the input RF signal power to the radio Resistor network at the input to the base of...

Page 71: ...ynthesizer must interface with the logic and ASFIC circuitry Programming for the synthesizer is accomplished through the data clock and chip select lines from the microprocessor A 3 3V dc signal from synthesizer lock detect line indicates to the microprocessor that the synthesizer is locked Transmit modulation from the ASFIC is supplied to pin10 of U201 Internally the audio is digitized by the Fra...

Page 72: ...uency is then locked by normal mode charge pump at pin 43 Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which is made up of C258 C259 C228 triple diode CR201 and level shifters U210 and U211 Two 3 3V square waves 180 deg out of phase are first shifted to 5V then along with regulated 5V put through arrays of diodes and capacitors to build up 13 3V at...

Page 73: ...ency comparison in the synthesizer a resultant CONTROL VOLTAGE is received at the VCO This voltage is a DC voltage between 3 5V and 9 5V when the PLL is locked on frequency Presc RX TX Matching Network Low Pass Filter Attenuator Pin8 Pin14 Pin10 Level Shifter Network 5V U201 Pin28 VCC Buffers TX RF Injection U201 Pin 32 AUX4 U201 Pin3 AUX3 U201 Pin2 Prescaler Out Pin 12 Pin 19 Pin 20 TX RX BS Swit...

Page 74: ...ic Diagram on page 6A 18 During the transmit condition when PTT is depressed five volts is applied to U241 pin 19 This activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U241 The RF signal at U241 pin 10 is injected into the input of the PA module U101 pin16 This RF signal is the TX RF INJECTION Also in transmit mode the audio signal to be frequency modulated...

Page 75: ...g 3 Reference Designators are assigned in the following manner 100 Series Transmitter 200 Series Frequency Generation 300 Series Receiver 400 500 Series Controller 600 Series Keypad Board 4 Interconnect Tie Point Legend UNSWB Unswitch Battery Voltage 7 5V SWB Switch Battery Voltage 7 5V R5 Receiver Five Volts CLK Clock Vdda Regulated 3 3 Volts for analog Vddd Regulated 3 3 Volts for digital CSX Ch...

Page 76: ...6A 14 Notes For All Schematics and Circuit Boards ...

Page 77: ...110 C114 C166 C111 C112 C113 C131 L106 L107 3 2 Q110 C119 C171 L108 R103 R104 R120 R171 R173 U101 8 1 C118 C121 C160 C115 C117 C116 C120 C127 L109 L160 R106 R107 R108 SH101 TP202 TP302 C375 C320 C319 L309 R348 T302 3 4 6 C381 C322 L310 R309 R308 R310 SH303 T301 3 4 6 C324 C323 L311 C325 FL301 R351 R352 SH323 B504 C397 PB504 R300 VR444 C328 C391 R326 R314 R316 R325 R334 R335 R338 RT301 VR300 Q315 Q...

Page 78: ...252 R254 U241 10 20 1 11 C241 C246 C242 C243 C250 C244 C245 CR242 CR243 L241 R242 R241 R244 SH242 C224 C231 C232 C234 R231 R232 R233 13 25 37 1 U201 C296 C258 C259 U210 3 4 U211 3 4 C201 C223 C219 C293 L261 R202 R201 SH202 C264 C218 C298 C202 C204 C206 C207 C208 C263 C265 CR203 R204 R281 C277 C279 C522 C278 L505 U248 VR441 VR506 C523 VR442 C436 C437 R420 R426 C431 C433 3 FL401 R463 R414 R415 C435 ...

Page 79: ...dda VOL MECH_SWB 100pF C503 VR506 6 8V 10V VR439 L505 390nH 24V 2 1 F501 2 CR501 1 BATT_CODE UNSWB BATT BATT RADIO_CODE BATTERY_CONTACT CONN_J B501 2 DATA 1 NEG 3 POS PB501 1 2 SWITCH 01uF C521 6 8V VR440 SB1 1 2 PB502 SWITCH C522 01uF VR441 6 8V PB503 SB2 C523 01uF 6 8V VR442 SWITCH PB504 1 2 1 2 SWITCH VR444 6 8V PTT SB3 6 8V VR443 1 2 SWITCH PB505 01uF C520 EMER 47K R506 Q505 R505 10K Vdda GREE...

Page 80: ...0K R307 R306 100K L306 13 9nH L307 13 9nH C316 3 9pF C313 10pF C311 27nH L305 6 8pF C312 C306 NU NU R303 1K C310 0 1uF Q301 1 3 2 R340 6 8K 2 7 R328 C314 0 1uF 510 12K R305 C309 100pF R304 180nH L304 100pF C321 100pF C315 R5 R342 100K C380 01uF DACRx 2 XFMR T301 4 6 3 1 18 R309 270 270 R310 R308 CR306 3 4 IF 2 1 82pF C322 L310 150nH R317 1K 2 3 CR308 HSMP3820 1 100pF C331 C395 100pF L340 390nH R34...

Page 81: ...GOLD_VCC AFC BASE U301 32D83 8 9 3 1 2 5 4 11 6 10 7 12 16 15 24 21 20 14 19 18 13 17 22 23 48 43 42 46 47 41 38 37 44 40 39 45 32 25 30 29 31 26 27 36 28 33 34 35 0 15uF 15pF C338 C361 01uF RSSI C328 0 1uF R314 3K R5 330 R313 C355 C337 100pF 022uF C356 C326 01uF L314 2 2uH C336 0 1uF Vdd_FILTERED C342 1uF C341 1uF C340 1uF 1uF C339 LVZIF BTM SHEILD CRYSTAL FILTER SHIELD LVZIF TOP SHEILD SH322 SHI...

Page 82: ...AL1 XTAL2 VMULT1 VMULT2 VMULT3 VMULT4 MODOUT FREFOUT AUX4 AUX1 AUX2 AUX3 23 24 15 14 12 11 19 41 48 1 2 3 TEST2 WARP SFOUT TEST1 IADAPT INDMULT IOUT LOCK ADAPTSW 25 28 37 38 45 16 43 4 46 VCP VRO PRE_VDD PD_VDD DVDD AVDD 47 13 5 34 36 20 VBPASS PVREF SFIN MODIN BIAS1 BIAS2 CEX CLK DATA 21 35 30 10 40 39 9 8 7 REFSEL SFBASE SFCAP NC1 NC2 NC3 PREIN CCOMP 18 27 26 17 29 31 32 42 PD_GND PRE_GND DGND A...

Page 83: ...6 14 18 1 SHIELD SH242 1 SH241 SHIELD VCO TOP SHIELD VCO BOTTOM SHIELD R260 1K C297 01uF 4 1 3 Q260 2 AUX3 5V AUX4 1 3 Q261 2 100pF C289 330 R252 R251 18 100pF C255 R254 7 5K 1 2 3 3 6pF L253 RESONATOR C254 P1 P2 P3 C253 1 5pF CR251 10pF C252 C247 100pF 30 R248 0 1uF C248 7 5K R253 Tx_sw 100pF C251 L251 33nH CR242 L241 CR243 390nH VCTRL 100pF C241 2 CR241 1 3 L282 390nH 1 3 2 Q241 BFQ67W VSF R244 ...

Page 84: ...10 15 16 11 6 7 2 3 C161 0 1uF 200 R161 C127 1000pF 022uF C128 390nH L112 100pF C130 UNSWB 100pF C160 10pF C120 C121 100pF 15 0nH L160 022uF C152 R108 NU R107 C151 100pF C150 022uF NU 300 R110 2K R104 R111 20 300 R112 C125 100pF C295 100pF TX_INJ 4 22nH L108 11 03nH L109 C118 100pF 30pF C117 10 R106 C116 33pF 15pF C115 2 Q110 R103 43 0 1uF C172 R172 200 Microstrip C113 L106 10pF 7 66nH 19 61nH L10...

Page 85: ...000pF C260 2113743N50 100pF C263 2113743N02 0 75pF C264 2113743N50 100pF Circuit Ref Motorola Part No Description C273 2113743M24 100000pF C276 2104993J02 2 2uF C277 2113743N50 100pF C278 2311049A57 10uF C279 2104993J02 2 2uF C281 2113743N50 100pF C285 2113743N50 100pF C286 2113743M24 100000pF C289 2113743N50 100pF C291 2311049A69 10uF C292 2113743M24 100000pF C293 2113743A27 0 47uF C294 2113743N5...

Page 86: ...Hz Xtal oscillator FL301 4802245J43 Xtal Filter 45 1MHz FL401 4870368G02 Real Time clock Osc Xtal not used in GP328 Circuit Ref Motorola Part No Description H101 2680499Z01 Heat spreader J101 0985613Z01 RF Jack J102 0280519Z02 Antenna nut J400 0905505Y04 40 pin connector J403 0905505Y02 20 pin connector L101 2479990B02 19 61nH L102 2479990B02 19 61nH L104 2479990B02 19 61nH L105 2462587N22 390nH L...

Page 87: ...471 0662057N06 20k R472 0662057N12 36k R473 0662057M26 10 R475 0662057M01 0 Circuit Ref Motorola Part No Description R476 0662057N35 330k R477 0662057M74 1000 R478 0662057M98 10k R481 0662057N08 24k R492 0662057M01 0 R501 0662057M70 680 R502 0662057M56 180 R505 0662057M98 10k R506 0662057N15 47k R507 0662057M01 0 RT300 0680590Z01 THERMISTOR_33K RT400 0680590Z01 THERMISTOR_33K S501 4080710Z01 Frequ...

Page 88: ...C331 CR308 R342 SH301 C304 C308 C302 C301 C303 C305 CR301 CR302 L301 L302 R301 R302 C505 C502 Q505 R506 R507 VR501 C511 C512 C513 C514 C520 CR503 2 3 4 Q502 R505 R502 R501 VR443 C441 C444 C471 C472 C473 C490 C491 C492 C493 C494 C495 C496 C497 21 1 J403 20 22 L401 Q417 3 4 R477 R450 RT400 TP410 VR447 VR449 CR413 L400 R421 TP405 TP406 TP415 VR434 VR450 C401 C402 C400 C406 C467 C482 C403 C480 CR412 C...

Page 89: ...H101 R133 R172 C105 C130 C138 C151 C170 C174 C126 C133 C128 C135 C150 C152 C134 L112 R109 R132 R136 25 9 17 U102 1 R102 C123 E101 R130 R131 VR439 CR306 R329 SH304 C503 CR501 F501 CR241 C241 C246 C281 C295 C372 C242 C243 C250 C244 C245 C371 C373 C378 CR242 CR243 R349 L241 L281 L242 Q310 R330 R332 R110 R112 R111 R242 R241 R244 R245 R331 SH242 U241 10 20 1 11 C255 C252 C254 CR251 L251 R251 R252 R254 ...

Page 90: ...8V VR443 Vdda 4 3 2 R506 47K 5 1 6 IMX1 Q505 10K R505 R502 180 680 R501 GREEN_LED SWB RED_LED Q502 3 1 2 4 CR503 CR501 1 2 10V VR439 100pF C503 24V F501 2 1 L505 390nH VR506 6 8V BATT_CODE RADIO_CODE UNSWB BATT BATT DATA 1 NEG 3 POS CONN_J B501 2 BATTERY_CONTACT TAB1 1 TAB2 2 TAB3 3 TAB4 4 TAB5 5 RF_JACK ANTENNA_NUT J102 C140 9 75nH L116 1 2 3 J101 RF_JACK 4 GND K2 K3 A1 A2 A3 K1 CR160 C141 NU NU ...

Page 91: ...390nH L340 HSMP3820 2 3 1 CR308 1K R347 100pF C331 18K R318 C333 R336 1 3 2 Q315 3 150 R319 91K R316 33K R327 C396 NU NU NU R5 RT300 33 0K 2 2K R300 C397 1uF RSSI RX_INJ VR300 2 Q316 1 2 R326 R334 NU NU NU NU 1 6 8K R325 0 1uF C391 R338 8 2K 2 1 R335 RT301 33 0K R5 NU R331 C371 C372 R330 NU NU NU NU R332 100pF C370 R5 NU 100pF C374 L321 0 R339 R333 if 0 R349 Q310 1 3 2 C378 100pF C386 C373 NU NU N...

Page 92: ...F Vdd_FILTERED 022uF C356 3K R314 R5 0 33uF C355 15pF C338 C328 0 1uF R313 330 C326 01uF C360 022uF DA RSSI XTAL FL301 680nH L330 30K R311 C325 01uF C330 10pF C327 100pF Q302 3 3K R352 R315 12K 2 4K R312 R351 0 C361 01uF L311 750nH C323 150pF 20pF C324 GND2 4 GND3 5 OUT 3 IN 6 GND 1 GND1 2 IF M301 022uF C334 0 1uF C359 CLK DATA LVZIF_SEL 16 8MHz 9 5 4 8 47 48 3 1 2 10 41 43 42 46 11 6 39 38 37 7 1...

Page 93: ...IOUT 43 LOCK 4 MODIN 10 MODOUT 41 AVDD 20 BIAS1 40 BIAS2 39 42 CCOMP CEX 9 CLK 8 DATA 7 DGND 6 ADAPTSW 46 AGND 22 AUX1 48 AUX2 1 AUX3 2 AUX4 3 LVFractN IC U201 82K R201 100pF C211 0 75pF C263 C264 100pF 100K R202 100pF C214 DATA AUX3 AUX4 39nH L261 TP201 1 100pF C212 C210 100pF CSX CLK MODIN PRESC VSF C201 100pF C203 4 7uF C202 1000pF SWB 100pF C294 C293 0 47uF L203 2 2uH Vdda 100pF C277 C278 10uF...

Page 94: ...RX_OUT RX_SWITCH U241 50U54 COLL_RFIN 4 FLIP_IN 20 GND_BUFFERS 11 R242 200 R243 10K 1 2 3 L243 RESONATOR R244 12K C244 2pF C245 2 4pF C285 100pF 100pF C246 R241 18 1 2 Q241 BFQ67W Rx_sw L282 390nH 3 VSF 30 R248 7 5pF C250 7 5pF C242 7 5pF C243 1 2 CR241 220nH L242 CR243 390nH L241 C241 100pF CR242 VCTRL A1 A2 C247 100pF C248 0 1uF 10pF C252 33nH L251 CR251 C253 1 5pF 100pF C251 7 5K R253 7 5K R254...

Page 95: ...100 HF SHIELD ANT_BIAS 100pF L105 C108 390nH TX_OUT CR101 19 61nH L104 C106 4 7pF C107 3 3pF 3 1 CR102 2 6 2pF C104 19 61nH L102 L101 19 61nH 10pF C103 6 2pF C102 100pF C101 RF_JACK RX_IN 240 R170 240 R101 20pF C175 ZMY0130486 A UHF Harmonic Filter Schematic Diagram ...

Page 96: ...FIN 6 RFOUT1 U101 C65 11 G2 4 GND1 5 GND2 C125 100pF 270K R132 022uF C131 390nH L114 C127 1000pF 5 6pF C169 100pF C165 5 6nH L113 C166 100pF 7 5pF C129 PA SHIELD POS 1 HEATSINK H101 1 SHIELD SH101 NU R174 R120 43K 100pF C119 300 R112 if 20 R111 R104 47K C295 100pF R110 300 43K R171 100pF C171 180K R173 1 CR103 2 3 2 6 4 1 3 Q111 10K 47K 4 7K 47K C132 100pF NU 100pF C174 C122 100pF C105 100pF R133 ...

Page 97: ...113740F09 1 8pF C254 2113743N15 3 6pF C255 2113743N50 100pF C257 2113743N50 100pF C258 2113743L41 10000pF Circuit Ref Motorola Part No Description C259 2113743L41 10000pF C260 2113743N50 100pF C263 2113743N02 0 75pF C264 2113743N50 100pF C265 NOT PLACED C271 NOT PLACED C272 NOT PLACED C273 2113743M24 100000pF C276 2104993J02 2 2uF C277 2113743N50 100pF C278 2311049A57 10uF C279 2104993J02 2 2uF C2...

Page 98: ...e diode CR304 4862824C08 Varactor CR305 4862824C08 Varactor CR306 4802245J42 Ring Quad diode SOT 143 CR308 4802245J41 Pin diode CR310 4862824C08 Varactor CR411 4802245J62 Diode Schottky CR412 4802245J62 Diode Schottky CR413 4802245J62 Diode Schottky CR440 4813833C02 Dual common cathode diode CR501 4880107R01 Rectifier CR503 4805729G49 LED Red Yellow E101 2484657R01 Ferrite bead E400 2480640Z01 Fer...

Page 99: ...62057M86 3300 R355 0662057M01 0 R400 0662057N15 47k R401 0662057M01 0 R402 NOT PLACED R403 NOT PLACED R405 0662057M01 0 R406 0662057N20 75k R407 0662057N19 68k R408 NOT PLACED R409 0662057M98 10k R410 0662057N23 100k R411 0662057M98 10k R413 0662057M01 0 R414 0662057V34 180k R415 0662057V26 91k R416 0662057M98 10k R418 0662057M01 0 R419 0662057M67 510 R420 0662057B46 10M not placed in GP328 R421 0...

Page 100: ...V Zener VR434 4802245J73 ZENER DIODE 6 8V VR439 4880140L17 Zener diode 12V VR440 4802245J73 ZENER DIODE 6 8V VR441 4802245J73 ZENER DIODE 6 8V VR442 4802245J73 ZENER DIODE 6 8V VR443 4802245J73 ZENER DIODE 6 8V VR444 4802245J73 ZENER DIODE 6 8V VR445 4802245J53 ZENER_DIODE 10V VR446 4802245J74 ZENER DIODE 10V VR447 4802245J74 ZENER DIODE 10V VR448 4802245J74 ZENER DIODE 10V VR449 4802245J74 ZENER ...

Page 101: ... low Press PTT Q502 2 High Check PB504 Check Q502 2 voltage LED Q502 R501 OK Replace Faulty Component Check Accessories J403 OPT_SEL_1 OPT_SEL_2 Pin 8 9 low Radio could not PTT externally U409 Pin 52 6 low See FGU Troubleshoot ing chart LED should light up Check MCU PTT NO YES YES No No NO YES YES NO YES YES NO NO YES YES NO NO YES NO YES NO YES YES NO NO YES EXT SPKR EXT PTT INT AUDIO J403 Pin 9 ...

Page 102: ...IF Freq 45 1MHz Audio heard B Yes No Check 2nd LO Control Voltage at C363 VCO locked B Yes 16 8 MHz check at pin 22 U301 Activity on U301 sel pin Check FGU No No A A Yes Check Q320 bias circuitry for faults Rotate Freq Knob Check controller Before replacing U301 check 2nd VCO Q320 Check VCO O P level C351 C352 Yes No Troubleshooting Flow Chart for Receiver Sheet 1 of 2 ...

Page 103: ...RF amp Q301 Stage Check filter between C310 T301 Yes Check T301 T302 CR306 R308 R309 R310 Yes 1st LO O P OK Locked Yes Check FGU Yes Trace IF signal from L311 to Q302 Check for bad XTAL filter No Yes Q302 collec tor OK IF signal present Beforereplacing U301 check U301 voltages trace IF signal path Yes Check for 2 6 VDC Is R5 present Check Q210 U201 pin 48 voltages and U247 No No No Check U404 volt...

Page 104: ...eck Pin Diodes 2 Check Harmonic Filter Inspect Repair Tx Output Network Is Power OK Done Check Drive to Module Is Drive OK Troubleshoot VCO Inspect PA Network Check Power Out of U101 at Cap C160 Is Power OK Replace U101 Is Power OK Replace Q101 Done Done No Yes Yes No No Yes Low High No Yes Yes No Yes No Troubleshooting Flow Chart for Transmitter ...

Page 105: ...n 47 and Pins 14 15 of U201 Replace or resolder necessary components Is RF level at U201 Pin 32 30 dBm Are R231 R232 R233 C231 C232 C233 OK Replace U201 If L261 C263 C264 are OK then see VCO troubleshooting chart Are 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 9 Replace U201 Check uP U409 Troubleshoo...

Page 106: ...ck U201 Pin 2 for 3 2V Pin 19 0V AUX 4 High Change Q261 V ctrl 0V or 13V L243 Open Circuit Change U241 Change L243 Change U201 Check for faulty parts or dry joints of L271 L273 C370 C386 R339 L320 A A No No Yes Yes Yes No No Yes Yes Yes No Yes No No Yes Yes No No Check R245 for dry joint or faulty No Troubleshooting Flow Chart for VCO ...

Page 107: ... X PMUD1496_ GP338 Tanapa 136 174 MHz 5W X PMLD4159_ GP328 B C Kit 136 174 MHz 5W 4CH X PMLD4109_ GP328 B C Kit 136 174 MHz 5W X PMLD4110_ GP338 B C Kit 136 174 MHz 5W X PMLN4348_ GP328 Front Housing Kit 4CH X PMLN4216_ GP328 Front Housing Kit X PMLN4199_ GP338 Front Housing Kit X X X PMAD4012_ Antenna 136 155 MHz Stubby X X X PMAD4013_ Antenna 155 174 MHz Stubby X X X PMAD4014_ Antenna 136 155 MH...

Page 108: ...a 136 174 MHz 5W X PMUD1801_ GP328 Tanapa 136 174 MHz 5W X PMUD1807_ GP338 Tanapa 136 174 MHz 5W X PMUD1803_ GP338 Tanapa 136 174 MHz 5W X X PMLD4109_ GP328 B C Kit 136 174 MHz 5W X X PMLD4110_ GP338 B C Kit 136 174 MHz 5W X PMLN4539_ GP328 Front Housing Kit X PMLN4544_ GP328 Front Housing Kit X PMLN4538_ GP338 Front Housing Kit X PMLN4545_ GP338 Front Housing Kit X X X X PMAD4012_ Antenna 136 155...

Page 109: ...Passes rain testing per IP54 Shock Meets MIL STD 810 C D E and TIA EIA 603 Vibration Meets MIL STD 810 C D E and TIA EIA 603 Dust Meets MIL STD 810 C D E and IP54 Humidity Meets MIL STD 810 C D E and TIA EIA 603 FCC ID AZ489FT3794 VHF RF Output NiMH 7 5V Low 1W High 5W Frequency 136 174 MHz Channel Spacing 12 5 20 25 kHz Freq Stability 30 C to 60 C 0 00025 Spurs Harmonics 36 dBm 1 GHz 30 dBm 1 GHz...

Page 110: ... 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...

Page 111: ...of L3538 and C3537 is used to match the antenna s impedance to the harmonic filter This will optimize the performance of the transmitter and receiver into an antenna 3 1 5 Power Control Integrated Circuit PCIC The transmitter uses the Power Control IC PCIC U3502 to control the power output of the radio by maintaining the radio current drain The current to the final stage of the power module is sup...

Page 112: ...d by the microprocessor Depending on the carrier frequency the DACRx will supply the tuned voltage to the varactor diodes in the filter Wideband operation of the filter is achieved by shifting the bandpass filter across the band The output of the bandpass filter is coupled to the RF amplifier transistor Q3302 via C3306 After being amplified by the RF amplifier the RF signal is further filtered by ...

Page 113: ...icroprocessor Additional filtering once externally provided by the conventional ceramic filters is replaced by internal filters in the IF module U3220 The IF IC uses a type of direct conversion process whereby the externally generated second LO frequency is divided by two in U3220 so that it is very close to the first IF frequency The IF IC U3220 synthesizes the second LO and phase locks the VCO t...

Page 114: ...1 at certain RSSI levels In order to turn on Q3301 the voltage across R3305 must be greater or equal to the voltage across R3324 plus the base emitter voltage Vbe present at Q3301 Capacitor C3209 is used to dampen any instability while the AGC is turning on The current flowing into the collector of Q3301 a high current gain NPN transistor will be drawn through the PIN diode to turn it on Maximum c...

Page 115: ...U3801 In addition to the VCO the synthesizer must interface with the logic and ASFIC circuitry Programming for the synthesizer is accomplished through the data clock and chip select lines from the microprocessor A 3 3V dc signal from synthesizer lock detect line indicates to the microprocessor that the synthesizer is locked Transmit modulation from the ASFIC is supplied to pin10 of U3701 Internall...

Page 116: ...ithin the lock range The required frequency is then locked by normal mode charge pump at pin 43 Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which is made up of C3701 to C3704 and triple diodes D3701 D3702 Two 3 3V square waves 180 deg out of phase are first multiplied by four and then shifted along with regulated 5V to build up 13 5V at pin 47 of ...

Page 117: ... in the synthesizer a resultant CONTROL VOLTAGE is received at the VCO This voltage is a DC voltage typically between 3 5V and 9 5V when the PLL is locked on frequency Figure 6 5 VCO Block Diagram Presc RX TX Matching Network Low Pass Filter Attenuator Pin8 Pin14 Pin10 3701 Pin28 VCC Buffers TX RF Injection U3701 Pin 32 AUX3 U3701 Pin2 Prescaler Out Pin 12 Pin 19 Pin 20 TX RX BS Switching Network ...

Page 118: ...on when PTT is depressed 3 2 volts is applied to U3801 pin 19 This activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U3801 The RF signal at U3801 pin 10 is injected into the input of the PA module U3501 pin16 This RF signal is the TX RF INJECTION Also in transmit mode the audio signal to be frequency modulated onto the carrier is received through U3701 pin 4...

Page 119: ...gnators are assigned in the following manner 400 500 Series Controller 600 Series Keypad Board 3200 Series IF Circuitry 3300 Series Receiver 3500 Series Transmitter 3700 and 3800 Series Frequency Generation 4 Interconnect Tie Point Legend UNSWB Unswitch Battery Voltage 7 5V SWB Switch Battery Voltage 7 5V R5 Receiver Five Volts CLK Clock Vdda Regulated 3 3 Volts for analog Vddd Regulated 3 3 Volts...

Page 120: ...6B 14 Notes For All Schematics and Circuit Boards ...

Page 121: ...2 C513 C514 C3202 C3203 C3206 C3207 C3208 R3218 Q3202 C3225 C3270 C3271 C3272 C3273 C3275 C3276 C3277 C 3278 C3279 C3280 C3503 C3512 C3513 C3514 C3517 C3519 C3521 C3523 C3524 C3525 C3527 C3528 C3531 C3532 C3534 C3535 C3536 C3537 C3539 C3541C3542 C3543 C3544 C3550 C3551 C3552 CR503 CR3303 D3270 D3521 D3551 L3201 L3202 L3270 L3271 L 3501 L3502 L3503 L3504 L3511 L3512 L3513 L3515 L3521 L3522 L3531 L3...

Page 122: ...63 C466 C475 C476 C479 C503 C3303 C3336 C3506 C3507 C3509 C3515 C3516 C3526 C3560 C3561 C3562 C3563 C3564 C3565 C3568 C3569 C3708 C3802 C3804 C3805 C3806 C3808 C3809 C3811 C3812 C3813 C3815 C3816 C3818 C3821 C3823 C3827 CR501 E400 E401 E402 E403 E404 E405 H3501 L410 L411 L3519 L3523 L3801 L3809 L3811 L3812 L3813 L3816 L3826 Q410 Q3801 R409 R411 R413 R423 R424 R425 R431 R445 R449 R457 R461 R472 R47...

Page 123: ... R3218 Q3202 C3225 C3270 C3271 C3272 C3273 C3275 C3276 C3277 C 3278 C3279 C3280 C3503 C3512 C3513 C3514 C3517 C3519 C3521 C3523 C3524 C3525 C3527 C3528 C3531 C3532 C3534 C3535 C3536 C3537 C3539 C3541C3542 C3543 C3544 C3550 C3551 C3552 CR503 CR3303 D3270 D3521 D3551 L3201 L3202 L3270 L3271 L 3501 L3502 L3503 L3504 L3511 L3512 L3513 L3515 L3521 L3522 L3531 L3532 L3538 L3551 L3552 PB505 Q502 Q505 Q32...

Page 124: ... C479 C503 C3303 C3336 C3506 C3507 C3509 C3515 C3516 C3526 C3560 C3561 C3562 C3563 C3564 R3565 C3568 C3569 C3708 C3802 C3804 C3805 C3806 C3808 C3809 C3811 C3812 C3813 C3815 C3816 C3818 C3821 C3823 C3827 CR501 E400 E401 E402 E403 E404 E405 H3501 L410 L411 L3519 L3523 L3801 L3809 L3811 L3812 L3813 L3816 L3826 Q410 Q3801 R409 R411 R413 R423 R424 R425 R431 R445 R449 R457 R461 C483 R472 R473 R3303 R330...

Page 125: ...VZIF_SEL CSX Vdda_2_SW LI_ION_1_SW RESET DACRx SWB _2_SW RTA2 BATT_CODE LVZIF_SEL_2_SW DACRX_2_SW RTA0 RTA1 RTA2 RTA3 SB1 SB2 SB3 SWB UNSWB VOL Vdda DATA_3_SW BATT_CODE EMER GREEN_LED LI_ION MECH_SWB PTT RED_LED CLK_2_SW CLK_3_SW LVZIF_SEL_1_SW PTT_1_SW 16_8MHz_2_SW CSX_1_SW DATA_2_SW SWB _3_SW CSX_2_SW 5V_1_SW GREEN_LED 5V Vdda_3_SW VOL_1_SW RESET_1_SW 5V_3_SW SQ_OUT_1_SW UNSW _1_SW CLK_1_SW DEMO...

Page 126: ... SHIELD SHIELD SH3301 SHIELD SHIELD 22 R3313 C3312 L3308 16pF C3315 10nH L3306 022uF 12nH 33nH L3312 022uF C3337 R3309 C3304 5 6K C3331 150pF C3330 100pF 100pF 0 1uF C3326 NU 1000pF C3325 330pF C3327 CR3301 2 3 4 1 C3319 NU 2 7pF 0 1uF C3306 330 R3315 C3334 L3305 20pF 12nH DACRx IF VHF_RX 0102726 C3322 100pF 33 R3312 R5_2_FE R5_3_FE R3305 R3322 47K R3323 220 18 C3316 RSSI_1_FE DACRx_1_FE NU 100pF ...

Page 127: ... 8MHz 1uF 100K R3206 01uF C3206 C3226 SH3203 SHIELD 0 1uF 5V SHIELD C3274 33pF C3237 100pF R3223 C3233 1K 1uF 4 7uF C3213 C3212 1uF R3215 100 Q3200 MMBR941 MMBR941 R3203 R3221 10K 100 022uF C3239 R3200 R5 150 47 SQ_OUT_1_ZIF SWB R3271 R3201 2 2K C3204 C3205 01uF 0 1uF DATA_3_ZIF CLK_3_ZIF 0 1uF C3225 C3208 0 1uF NU 100 R3208 10 R3224 0 22uF C3201 C3240 NU 1 5pF 2 2K 1uF R3213 C3209 C3221 01uF 0 1u...

Page 128: ...2 VSF SFCAP SFIN SFOUT TEST1 TEST2 VBPASS VCP VMULT1 PD_GND PD_VDD PREIN PRE_GND PRE_VDD PVREF REFSEL SFBASE INDMULT IOUT LOCK MODIN MODOUT NC1 NC2 NC3 CCOMP CEX CLK DATA DGND DVDD FREFOUT IADAPT AGND AUX1 AUX2 AUX3 AUX4 AVDD BIAS1 BIAS2 U3701 09Z88 09Z88 ADAPTSW SH3701 SHIELD T5 R5_1_FN SHIELD PRESC_1_FN SWB_PLUS_1_FN VCTRL_1_FN VSF_1_FN R5_2_FN T5_1_FN VCO_MOD_1_FN BIAS_ADJ_1_FN TRB_1_FN Vdda_1_...

Page 129: ... U3801 50U54 47 10K R3834 220 R3836 R3821 R3825 33 VCTRL_1_VCO L3826 1uH L3822 47nH 47 BIAS_ADJ R3822 C3825 15pF 27nH L3809 L3831 56nH 220 R3833 C3801 4 7pF C3808 15pF D3831 BIAS_ADJ_1_VCO T5_1_VCO R3806 22 D3832 R3801 220 100 R3802 R3803 220 C3802 22pF NU 0 1uF 56nH C3812 L3833 C3810 10pF NU L3816 100nH R3811 100 0 1uF C3827 C3823 01uF C3811 0 1uF 56pF VCTRL C3828 C3834 01uF 100 R3828 C3809 PRESC...

Page 130: ...68 09Z46 U3502 22 ANO BPOS 27 29 CEX BEAD L3519 BEAD CLK_2_PA CSX_2_PA CLK UNSWB UNSWB R3562 C3550 7 5pF 33K 100 11 03nH R3545 L3512 C3534 4 7pF C3533 7 5pF R3546 33K C3532 68pF 330pF R3512 C3518 120 022uF C3504 1uH L3523 C3526 C3525 022uF L3503 10pF 68nH 12K R3561 022uF C3565 3300pF 3300pF C3562 C3563 R3563 270K C3561 022uF C3527 1 5pF L3521 7 66nH C3514 470pF C3515 220pF 3300pF C3521 C3569 022uF...

Page 131: ...C3516 2311049A08 1uF C3517 2113740F51 100pF C3518 2113740F63 330pF Circuit Ref Motorola Part No Description C3519 2113740F35 22pF C3521 2111078B51 220pF C3523 2111078B44 120pF C3524 2113740F33 18pF C3525 2113740F27 10pF C3526 2113743M08 22000pF C3528 2113740F26 9 1pF C3531 2113740F34 20pF C3532 2113740F47 68pF C3533 2113740F24 7 5pF C3534 2113740F19 4 7pF C3535 2113740F37 27pF C3536 2113740F31 15p...

Page 132: ...escription D3831 4805649Q13 Varactor D3832 4862824C01 Varactor E400 2480640Z01 Ferrite bead E401 2480640Z01 Ferrite bead E402 2480640Z01 Ferrite bead E403 2480640Z01 Ferrite bead E404 2480640Z01 Ferrite bead E405 2480640Z01 Ferrite bead E406 2480640Z01 Ferrite bead E407 2480640Z01 Ferrite bead E408 2480640Z01 Ferrite bead E409 2480640Z01 Ferrite bead F501 6580542Z01 3A Fuse FL401 4870368G02 Real T...

Page 133: ...k R415 0662057V26 91k R416 0662057M90 4700 R418 0662057M01 0 R419 0662057M67 0 not used in GP328 R420 0662057B46 10M not used in GP328 R421 0662057M81 2000 R423 0662057N21 82k R424 0662057N12 36k R425 0662057N10 30k R426 0662057N35 330k not used in GP328 R427 0662057M84 2700 R428 0662057M10 2 2 R429 0662057M98 10k R431 0662057N39 470k R432 0662057N16 51k R434 0662057M62 330 R435 0662057M81 2000 R4...

Page 134: ...it Board Schematic Diagrams and Parts List Motorola Depot Servicing only Y3761 4802245J49 16 8MHz Xtal Oscillator 5480678Z01 PCB Barcode label 8486062B12 VHF Main PC Board Circuit Ref Motorola Part No Description ...

Page 135: ...01 C3202 R3211 C3203 L3201 R3203 Y3200 C3204 C3206 C3208 C3210 C3207 L3202 Q3201 Q3200 R3206 R3202 R3212 R3204 R3205 R3209 R3201 R3210 R3207 R3208 SH3203 C3205 R3200 C3335 C3320 C3334 L3309 L3312 R3318 SH3302 T3302 3 4 6 TP3301 C3318 C3329 C3319 R3317 R3321 R3322 R3323 T3301 3 4 6 C3330 C3331 C3332 D3302 C3312 C3311 C3313 C3314 L3305 L3306 C3306 C3309 C3307 C3338 C3308 C3327 C3310 CR3303 L3304 Q33...

Page 136: ...431 FL401 R414 R415 R463 C436 C437 R420 R426 3 SH402 51 1 U409 76 26 CR411 C434 C435 Q416 R462 R419 R460 R461 U410 C453 C456 L410 L411 R409 R411 R457 R432 C458 C459 C466 E400 E404 E406 C463 E401 E402 E403 C449 C4020 C4021 M400 E405 SH3702 13 25 1 U3701 37 C3701 C3703 D3701 C3702 R3703 R3704 C3705 R3702 C3708 C3725 R3726 D3702 C3731 C3732 C3761 C3762 L3701 R3762 C3727 C3755 C3726 R3727 C3734 C3733 ...

Page 137: ... 01uF C520 01uF C521 1 2 SWITCH PB505 VR440 NU 6 8V PB501 1 2 SWITCH PB504 1 2 SWITCH NU 6 8V VR444 PTT PB502 1 2 SWITCH VR441 NU 6 8V C522 01uF SB2 PB503 1 2 SWITCH NU 6 8V VR442 C523 01uF SB3 M100 M101 SWB Vdda 4 3 47K R506 R505 10K Q505 5 1 6 2 Q502 switch RED_LED R501 680 680 CR503 2 4 1 3 R502 180 180 RTA2 RTA0 RTA1 RTA3 S501 SWITCH GND1 PC0 PC1 PC2 PC3 C0 C1 GND 1 2 4 8 C0 C1 9 7 100pF C511 ...

Page 138: ...3306 C3312 16pF C3316 3 3pF Stripline C3319 2 7pF NU C3318 022uF C3339 10pF 10pF L3308 10nH 39pF C3317 4 6 3 1 2 T3301 82pF C3320 18 R3323 IF_1_FE 150nH 150 L3309 R3321 R3322 220 IF R3319 1K NU 1 CR3301 2 3 4 R3320 1K NU RF BALUN XFMR C3329 330pF C3331 100pF C3330 100pF C3332 39pF 100K R3317 DACRx_1_FE M301 M300 RX_INJ_1_FE DACRx RX_INJ C3321 330pF 100pF C3322 C3323 100pF 33pF C3324 R3303 100K Str...

Page 139: ...0 36 C4M C4P 28 33 C1M 34 C2M 35 C3M 7 AFC 12 16 15 24 21 20 14 19 18 13 17 22 23 C3240 0 22uF Vdd_FILTERED Vdd_FILTERED 0 1uF C3225 100pF C3229 C3220 10pF 4 7K R3220 L3221 1uH C3239 022uF C3228 01uF 0 1uF C3226 R3221 100 DEMOD SQ_OUT Vdd_FILTERED C3224 0 1uF 0 22uF C3235 C3237 1K 100pF NU R3223 R3224 10 C3236 01uF C3233 1uF C3232 1uF C3231 1uF DEMOD_1_ZIF 0 1uF C3223 C3242 0 1uF 1200pF C3241 C322...

Page 140: ...F NU C3735 100 R3763 NU R3762 NU 2 2K 56pF C3761 330pF C3762 100K R3727 C3726 8 2pF 100pF C3727 PRESC_1_FN 2 2uF C3755 MODIN_1_FN DATA_1_FN CSX_1_FN R3752 330K C3753 4 7uF 200K R3751 DATA MODIN C3752 1000pF CSX CLK_1_FN 220pF C3744 C3742 220pF C3745 220pF C3743 220pF CLK 5V 01uF C3732 01uF C3731 R3760 0 0 NU 1 6pF C3763 C3751 0 1uF NU 4 VCC 1 VCNTL 2 GND 3 OUT NU OSC_16 8MHZ 16 8MHz VSF VSF_1_FN P...

Page 141: ... 1000pF R3806 22 C3805 4 7pF 100pF C3806 27nH L3809 15pF C3808 27pF C3809 TX_INJ_1_VCO C3822 1000pF C3813 01uF 47 R3822 R3821 220 L3821 56nH C3824 56pF C3826 4 7pF C3825 15pF L3826 1uH R3825 33 R3831 10K 18 R3826 R3823 33K 01uF C3821 C3827 022uF 01uF C3823 R3824 22K PRESC_1_VCO 1K 100nH R3816 L3816 C3816 PRESC 6 8pF VSF TX_INJ T5 TRB C3832 1000pF R3833 220 1000pF C3815 R3830 T5_1_VCO 0 R3829 TRB_1...

Page 142: ...EATSINK H3501 C3527 1 5pF NU 120pF C3523 18pF C3524 L3521 7 66nH 220pF C3521 022uF C3528 9 1pF 23 75nH L3522 13 85nH L3515 C3525 10pF VR3501 10V C3526 Microstrio 100 R3545 7 5K R3548 100 R3544 BIAS_TUNING 330pF C3546 R3546 33K 12K R3547 022uF C3547 TP3502 1 3300pF C3568 0 R3566 R3519 0 1 BEAD L3519 C3570 470pF C3571 RESET RESET_1_PA 5V_2_PA 5V BIAS_TUNING 330pF UNSWB UNSWB 10K NU R3570 R3569 NU 5 ...

Page 143: ...16 2311049A08 1uF C3517 2113740F47 68pF C3521 2111078B51 220pF Circuit Ref Motorola Part No Description C3523 2111078B44 120pF C3524 2113740F33 18pF C3525 2113740F27 10pF C3526 2113743M08 22000pF 80 20 C3528 2113740F27 10pF C3531 2113740F34 20pF C3532 2113740F47 68pF C3533 2113740F24 7 5pF C3534 2113740F19 4 7pF C3535 2113740F37 27pF C3536 2113740F31 15pF C3537 2113740F33 18pF C3539 2113740F29 12p...

Page 144: ...Triple diode D3761 4862824C03 Varactor Circuit Ref Motorola Part No Description D3821 4805649Q13 Varactor D3831 4805649Q13 Varactor D3832 4862824C01 Varactor E400 2480640Z01 Ferrite bead E401 2480640Z01 Ferrite bead E402 2480640Z01 Ferrite bead E403 2480640Z01 Ferrite bead E404 2480640Z01 Ferrite bead E405 2480640Z01 Ferrite bead E406 2480640Z01 Ferrite bead E407 2480640Z01 Ferrite bead E408 24806...

Page 145: ...100K R411 0662057M98 10k R413 0662057M01 0 R414 0662057V34 180K R415 0662057V26 91K R416 0662057M98 10k R418 0662057M01 0 R419 0662057M67 510 not placed in GP328 R420 0662057B46 10M not placed in GP328 R421 0662057M81 2000 R423 0662057N21 82K R424 0662057N12 36K R425 0662057N10 30K R426 0662057N35 330K not placed in GP328 R427 0662057M84 2700 R428 0662057M10 2 2 R429 0662057M98 10k R431 0662057N39...

Page 146: ...J74 ZENER DIODE 10V VR449 4802245J74 ZENER DIODE 10V VR450 4802245J74 ZENER DIODE 10V VR460 4802245J73 ZENER DIODE 6 8V VR501 4802245J73 ZENER DIODE 6 8V VR506 4802245J73 ZENER DIODE 6 8V Y3200 9186153B01 Crystal Filter Y3761 4805875Z04 16 8MHz Xtal oscillator SMD 5480678Z01 PCB Bar Code Label 8486062B16 VHF main PC Board Circuit Ref Motorola Part No Description ...

Page 147: ...53 low Press PTT Q502 2 High Check PB504 Check Q502 2 voltage LED Q502 R501 OK Replace Faulty Component Check Accessories J403 OPT_SEL_1 OPT_SEL_2 Pin 8 9 low Radio could not PTT externally U409 Pin 52 6 low See FGU Troubleshoot ing chart LED should light up Check MCU PTT NO YES YES No No NO YES YES NO YES YES NO NO YES YES NO NO YES NO YES NO YES YES NO NO YES EXT SPKR EXT PTT INT AUDIO J403 Pin ...

Page 148: ...Freq 45 1MHz Audio heard B Yes No Check 2nd LO Control Voltage at C3279 VCO locked B Yes 16 8 MHz check at pin 21 U3220 Activity on U3220 sel pin Check FGU No No A A Yes Check Q3270 bias circuitry for faults Rotate Freq Knob Check controller Before replacing U3220 check 2nd VCO Q3270 Check VCO O P level C3272 C3273 Yes No Troubleshooting Flow Chart for Receiver Sheet 1 of 2 ...

Page 149: ...s Check RF amp Q3302 Stage Check filter between C3313 T3301 Yes Check T3301 T3302 CR3301 R3321 R3322 R3323 Yes 1st LO O P OK Locked Yes Check FGU Yes Trace IF signal from C3200 to Q3200 Check for bad XTAL filter No Yes Q3200 collec tor OK IF signal present Beforereplacing U3220 check U3220 volt ages trace IF signal path Yes Check for 2 9 VDC Is R5 present Check Q3721 U3701 pin 48 volt ages and U24...

Page 150: ...ck Pin Diodes 2 Check Harmonic Filter Inspect Repair Tx Output Network Is Power OK Done Check Drive to Module Is Drive OK Troubleshoot VCO Inspect PA Network Check Power Out of U3501 at Cap C3512 Is Power OK Replace U3501 Is Power OK Replace Q3501 Done Done No Yes Yes No No Yes Low High No Yes Yes No Yes No Troubleshooting Flow Chart for Transmitter ...

Page 151: ...ns 14 15 of U3701 Replace or resolder necessary components Is RF level at U3701 Pin 32 30 dBm Are C3721 C3722 C3723 R3721 R3722 R3723 OK Replace U3701 If R3727 C3726 C3727 are OK then see VCO troubleshooting chart Are Waveforms at Pins 14 15 triangular Do Pins 7 8 9 of U3701 toggle when channel is changed Check programming lines between U409 and U3701 Pins 7 8 9 Replace U3701 Check uP U409 Trouble...

Page 152: ...n 2 for 3 2V Pin 19 0V AUX 3 Low Change U3801 V ctrl 0V or 13V L3821 L3822 L3823 Open Circuit Change U3801 Change L3821 L3822 L3823 L243 Change U3701 Check for faulty parts or dry joints of L3812 C3806 R3806 R3802 L3801 A A No No Yes Yes Yes No No Yes Yes Yes No Yes No No Yes Yes No No Check R3811 L3811 for dry joint or faulty No Troubleshooting Flow Chart for VCO Yes ...

Page 153: ...4W 4CH X PMUE1489_ GP328 Tanapa 450 527 MHz 4W X PMUE1490_ GP338 Tanapa 450 527 MHz 4W X PMLE4172_ GP328 B C Kit 450 527 MHz 4W 4CH X PMLE4118_ GP328 B C Kit 450 527 MHz 4W X PMLE4119_ GP338 B C Kit 450 527 MHz 4W X PMLN4348_ GP328 Front Housing Kit 4CH X PMLN4216_ GP328 Front Housing Kit X PMLN4199_ GP338 Front Housing Kit X X X NAE6483_ UHF 16 cm Monopole Whip antenna 403 520 MHz X X X PMAE4008_...

Page 154: ...Passes rain testing per IP54 Shock Meets MIL STD 810 C D E and TIA EIA 603 Vibration Meets MIL STD 810 C D E and TIA EIA 603 Dust Meets MIL STD 810 C D E and IP54 Humidity Meets MIL STD 810 C D E and TIA EIA 603 FCC ID AZ489FT4834 UHF RF Output NiMH 7 5V Low 1W High 4W Frequency 450 527 MHz Channel Spacing 12 5 20 25 kHz Freq Stability 30 C to 60 C 0 00025 Spurs Harmonics 36 dBm 1 GHz 30 dBm 1 GHz...

Page 155: ...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 160mA while operating in the frequency range of 450 527MHz 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 1300mA while operating in the frequency ...

Page 156: ...rk which is made up of L116 is used to match the antenna s impedance to the harmonic filter This will optimize the performance of the transmitter and receiver into an antenna 3 1 5 Power Control Integrated Circuit PCIC The transmitter uses the Power Control IC PCIC U102 to regulate the power output of the radio The current to the final stage of the power module is supplied through R101 which provi...

Page 157: ...roprocessor Depending on the carrier frequency the DACRx will supply the tuned voltage to the varactor diodes in the filter Wideband operation of the filter is achieved by shifting the bandpass filter across the band The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307 After being amplified by the RF amplifier the RF signal is further filtered by a second varac...

Page 158: ...l filtering once externally provided by the conventional ceramic filters is replaced by internal filters in the IF module U301 The IF IC uses a type of direct conversion process whereby the externally generated second LO frequency is divided by two in U301 so that it is very close to the first IF frequency The IF IC U301 synthesizes the second LO and phase locks the VCO to track the first IF frequ...

Page 159: ...Q315 is an NPN transistor used for switching here Maximum current flowing through the PIN is mainly limited by the resistor R319 Radio signal strength indicator RSSI a voltage signal is used to drive Q315 to saturation hence turning it on RSSI is produced by U301 and is proportional to the gain of the RF amplifier and the input RF signal power to the radio Resistor network at the input to the base...

Page 160: ...ynthesizer must interface with the logic and ASFIC circuitry Programming for the synthesizer is accomplished through the data clock and chip select lines from the microprocessor A 3 3V dc signal from synthesizer lock detect line indicates to the microprocessor that the synthesizer is locked Transmit modulation from the ASFIC is supplied to pin10 of U201 Internally the audio is digitized by the Fra...

Page 161: ...requency is then locked by normal mode charge pump at pin 43 Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which is made up of C258 C259 C228 triple diode CR201 and level shifters U210 and U211 Two 3 3V square waves 180 deg out of phase are first shifted to 5V then along with regulated 5V put through arrays of diodes and capacitors to build up 13 3V...

Page 162: ...equency comparison in the synthesizer a resultant CONTROL VOLTAGE is received at the VCO This voltage is a DC voltage between 3 5V and 9 5V when the PLL is locked on frequency Presc RX TX Matching Network Low Pass Filter Attenuator Pin8 Pin14 Pin10 Level Shifter Network 5V U201 Pin28 VCC Buffers TX RF Injection U201 Pin 32 AUX4 U201 Pin3 AUX3 U201 Pin2 Prescaler Out Pin 12 Pin 19 Pin 20 TX RX BS S...

Page 163: ...matic Diagram on page 6C 16 During the transmit condition when PTT is depressed five volts is applied to U241 pin 19 This activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U241 The RF signal at U241 pin 10 is injected into the input of the PA module U101 pin16 This RF signal is the TX RF INJECTION Also in transmit mode the audio signal to be frequency modula...

Page 164: ...g 3 Reference Designators are assigned in the following manner 100 Series Transmitter 200 Series Frequency Generation 300 Series Receiver 400 500 Series Controller 600 Series Keypad Board 4 Interconnect Tie Point Legend UNSWB Unswitch Battery Voltage 7 5V SWB Switch Battery Voltage 7 5V R5 Receiver Five Volts CLK Clock Vdda Regulated 3 3 Volts for analog Vddd Regulated 3 3 Volts for digital CSX Ch...

Page 165: ...3 C276 C285 C286 C289 C370 C374 C386 3 L243 3 L253 L271 L273 L282 L321 Q241 4 3 Q261 R243 R248 R253 R260 R333 R339 SH241 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C121 C122 C125 C127 C129 C131 C160 C161 C165 C166 C169 C171 C180 C181 L106 L107 L108 L109 L113 L114 L115 L117 L160 1 2 3 Q110 R104 R106 R107 R108 R120 R161 R171 R173 R174 SH101 1 16 8 9 U101 C319 C320 C322 C375 C381 L30...

Page 166: ...506 CR501 C201 C202 C204 C206 C207 C208 C218 C219 C223 C224 C231 C232 C234 C258 C259 C263 C264 C265 C293 C296 C298 CR203 L261 R201 R202 R204 R231R232 R233 R281 SH202 1 37 25 13 U201 4 3 U210 4 3 U211 C241 C242 C243 C244 C245 C246 C250 C252 C254 C255 C281 C295 C371 C372 C373 C378 CR241 CR242 CR243 CR251 L 2 4 1 L242 L251 L281 Q310 R110 R111 R112 R241 R242 R244 R245 R251 R252 R254 R330 R331 R332 R34...

Page 167: ...VOL MECH_SWB 100pF C503 VR506 6 8V 10V VR439 L505 390nH 24V 2 1 F501 2 CR501 1 BATT_CODE UNSWB BATT BATT RADIO_CODE BATTERY_CONTACT CONN_J B501 2 DATA 1 NEG 3 POS PB501 1 2 SWITCH 01uF C521 6 8V VR440 SB1 1 2 PB502 SWITCH C522 01uF VR441 6 8V PB503 SB2 C523 01uF 6 8V VR442 SWITCH PB504 1 2 1 2 SWITCH VR444 6 8V PTT SB3 6 8V VR443 1 2 SWITCH PB505 01uF C520 EMER 47K R506 Q505 R505 10K Vdda GREEN_LE...

Page 168: ...pF C381 R329 0 C318 11pF C317 7 5pF T301 4 6 3 1 2 XFMR TP302 T302 XFMR 4 6 3 1 2 C320 C319 7 5pF 3 6pF 16 28nH L309 R348 3 6K R336 C333 R5 NU NU 33K R327 R316 91K Q315 1 3 2 18K R318 R319 150 C396 NU R300 2 2K 0 47pF C397 1 33 0K RT300 2 R334 Q316 1 3 2 VR300 R326 NU NU NU NU R325 6 8K R338 R335 RT301 2 1 C391 NU NU NU NU R5 C370 100pF R330 RSSI RX_INJ NU R331 C372 Q310 1 3 2 C371 100pF C386 NU N...

Page 169: ...13 30K R311 C326 01uF Q302 R351 0 3 3K R352 12K R315 680nH L330 01uF C325 C323 150pF 20pF C324 750nH L311 GND2 4 GND3 5 OUT 3 IN 6 TBD XTAL FL301 GND 1 GND1 2 IF 10uF C382 C348 0 1uF 0 1uF C329 2 20uH L331 R343 10 0 1uF C344 Vdd_FILTERED SOURCE C343 0 22uF 0 1uF C347 0 1uF C346 Vdda 022uF C334 DB 0 1uF C359 1200pF C358 R344 12K C383 100pF 0 22uF C357 16 8MHz Vdd_FILTERED CLK DATA LVZIF_SEL C350 33...

Page 170: ...OTTOM SHIELD SHIELD SH201 SHIELD SH202 L232 12uH 47K R204 CR203 C238 470pF 1 6pF C208 1 GND GND1 4 OUT 3 IN 6 FL201 75Z04 100pF C260 100pF C213 5V LOCK AUX4 AUX3 4 3K R255 30 R256 Q210 2 4 1 3 R5 16 8MHz 10K 47K 4 7K 47K 120 R232 620 R231 0 1uF C233 560 R233 C231 0 1uF C234 0 47uF C232 047uF TP202 1 MODOUT 100pF C277 2 2uF C278 4V_3 3V C279 2 2uF 100pF C220 GND 2 NC 4 3 ON_OFF VIN 1 VOUT 5 U248 LP...

Page 171: ...pF C285 R241 18 15K R244 L243 RESONATOR 1 2 3 4 3pF C250 4 3pF C242 4 3pF C243 1 2 CR243 A1 A2 CR241 C241 100pF 22nH L242 390nH L241 CR242 R243 10K C244 3 6pF Rx_sw 1 3 2 Q241 BFQ67W 30 R248 L282 390nH C247 0 1uF C248 100pF R253 7 5K Tx_sw C253 1 5pF 100pF C251 CR251 20pF C252 390nH L251 C254 3 3pF R251 33 L253 RESONATOR 1 2 3 100pF C289 100pF C255 R252 270 R254 8 2K 1K R260 4 1 3 Q261 2 10K 47K 4...

Page 172: ...pF C121 C150 022uF C151 100pF C161 0 1uF 200 R161 100pF C130 C128 022uF 390nH L112 R108 5 6K L160 15 0nH 56pF C160 022uF C152 UNSWB 11pF C116 C117 10pF 11 03nH L109 4 22nH L108 10 R106 100pF C115 C118 27pF C125 100pF 100pF C295 300 R112 R110 300 20 R111 R107 C180 TX_INJ_1 TX_INJ NU NU Microstrip Microstrip 1 2 3 C111 13 0pF C112 36pF L107 33 47nH 0 1 R102 L117 22 0nH C113 15pF BEAD E101 C114 100pF...

Page 173: ... 2113743L41 01uF 10 C259 2113743L41 01uF 10 C260 2113743N50 100pF C263 2113743N02 0 75pF 0 25 C264 2113743N50 100pF Circuit Ref Motorola Part No Description C265 Not Placed C271 2113743N03 1pF 0 25 C272 2113743N04 1 1pF 0 25 C273 2113743M24 0 1uF 80 20 C276 2104993J02 2 2uF C277 2113743N50 100pF C278 2311049A57 10uF 10 20V C279 2104993J02 2 2uF C281 2113743N50 100pF C285 2113743N50 100pF C286 2113...

Page 174: ...otorola Part No Description CR501 4880107R01 Rectifier CR503 4805729G49 LED Red Yel D401 4802245J62 Diode Schottky RB731U D402 4802245J62 Diode Schottky RB731U D403 4802245J62 Diode Schottky RB731U E101 2484657R01 Ferrite Bead E400 2480640Z01 Ferrite Bead E401 2480640Z01 Ferrite Bead E402 2480640Z01 Ferrite Bead E403 2480640Z01 Ferrite Bead E404 2480640Z01 Ferrite Bead E405 2480640Z01 Ferrite Bead...

Page 175: ...57M01 0 R419 0662057M67 510 not used in GP328 R420 0662057B46 10MEG not used in GP328 R421 0662057M81 2K R423 0662057N39 470K R424 0662057N12 36K R425 0662057N10 30K R426 0662057N35 330K not used in GP328 R427 0662057M84 2 7K R428 0662057M10 2 2 R429 0662057M98 10K R431 0662057N39 470K R432 0662057N16 51K R434 0662057M62 330K R435 0662057M81 2K R436 0662057M01 0 R437 Not Placed R445 0662057N08 24K...

Page 176: ...VR442 4802245J51 6 8V Zener VR443 4802245J51 6 8V Zener VR444 4802245J51 6 8V Zener VR445 4802245J53 10V Zener VR446 4802245J53 10V Zener VR447 4802245J53 10V Zener VR448 4802245J53 10V Zener VR449 4802245J53 10V Zener VR450 4802245J53 10V Zener VR501 4813830A18 6 8V Zener VR506 4802245J51 6 8V Zener Circuit Ref Motorola Part No Description ...

Page 177: ...374 C386 C248 C273 C286 C276 C253 C271 C272 L282 L243 3 L253 3 L271 L273 L321 Q261 3 4 Q241 R333 R339 R243 R248 R253 R260 SH241 C505 C502 C521 PB501 VR440 C511 C512 C513 C514 C520 CR503 2 3 4 Q505 Q502 R506 R507 R505 R502 R501 VR443 VR501 C140 C141 L116 C101 C102 C104 C103 C106 C107 C188 CR101 CR102 L101 L102 L104 L105 SH100 SH301 C308 C304 C301 C305 C302 C303 CR301 CR302 L301 L302 R301 R302 C331 ...

Page 178: ... 13 25 37 1 U201 U210 3 4 U211 3 4 C241 C246 C255 C281 C295 C372 C371 C373 C378 C242 C243 C250 C244 C245 C252 C254 CR241 CR242 CR243 CR251 L241 L251 L281 L242 M300 Q310 R330 R332 R110 R112 R111 R349 R242 R241 R244 R245 R251 R252 R254 R331 SH242 U241 10 20 1 11 B501 3 2 1 C503 CR501 F501 M101 C327 C330 C326 C338 L330 Q302 R315 R311 R312 R313 CR306 SH304 C123 E101 R329 VR439 C105 C130 C138 C151 C170...

Page 179: ...VOL MECH_SWB 100pF C503 VR506 6 8V 10V VR439 L505 390nH 24V 2 1 F501 2 CR501 1 BATT_CODE UNSWB BATT BATT RADIO_CODE BATTERY_CONTACT CONN_J B501 2 DATA 1 NEG 3 POS PB501 1 2 SWITCH 01uF C521 6 8V VR440 SB1 1 2 PB502 SWITCH C522 01uF VR441 6 8V PB503 SB2 C523 01uF 6 8V VR442 SWITCH PB504 1 2 1 2 SWITCH VR444 6 8V PTT SB3 6 8V VR443 1 2 SWITCH PB505 01uF C520 EMER 47K R506 Q505 R505 10K Vdda GREEN_LE...

Page 180: ...pF C381 R329 0 C318 11pF C317 7 5pF T301 4 6 3 1 2 XFMR TP302 T302 XFMR 4 6 3 1 2 C320 C319 7 5pF 3 6pF 16 28nH L309 R348 3 6K R336 C333 R5 NU NU 33K R327 R316 91K Q315 1 3 2 18K R318 R319 150 C396 NU R300 2 2K 0 47pF C397 1 33 0K RT300 2 R334 Q316 1 3 2 VR300 R326 NU NU NU NU R325 6 8K R338 R335 RT301 2 1 C391 NU NU NU NU R5 C370 100pF R330 RSSI RX_INJ NU R331 C372 Q310 1 3 2 C371 100pF C386 NU N...

Page 181: ...13 30K R311 C326 01uF Q302 R351 0 3 3K R352 12K R315 680nH L330 01uF C325 C323 150pF 20pF C324 750nH L311 GND2 4 GND3 5 OUT 3 IN 6 TBD XTAL FL301 GND 1 GND1 2 IF 10uF C382 C348 0 1uF 0 1uF C329 2 20uH L331 R343 10 0 1uF C344 Vdd_FILTERED SOURCE C343 0 22uF 0 1uF C347 0 1uF C346 Vdda 022uF C334 DB 0 1uF C359 1200pF C358 R344 12K C383 100pF 0 22uF C357 16 8MHz Vdd_FILTERED CLK DATA LVZIF_SEL C350 33...

Page 182: ...204 C213 100pF LOCK TP201 1 AUX4 AUX3 C206 330pF 39pF C207 R205 C215 NU 100 ohm NU 0 01uF FADJ 2 GND 4 OUT 3 VDD 1 FL201 75Z04 1 GND GND1 4 OUT 3 IN 6 if SHIELD SH202 1 C208 SHIELD SH201 1 CR203 R206 NU SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD C216 OSC_16 8MHZ Y201 NU 0 1uF NU NU 100pF 100pF C214 100pF C212 C210 MODIN CLK DATA CSX 100pF C211 R202 100K 82K R201 39nH L261 0 75pF C263 C264 10...

Page 183: ...pF C285 R241 18 15K R244 L243 RESONATOR 1 2 3 4 3pF C250 4 3pF C242 4 3pF C243 1 2 CR243 A1 A2 CR241 C241 100pF 22nH L242 390nH L241 CR242 R243 10K C244 3 6pF Rx_sw 1 3 2 Q241 BFQ67W 30 R248 L282 390nH C247 0 1uF C248 100pF R253 7 5K Tx_sw C253 1 5pF 100pF C251 CR251 20pF C252 390nH L251 C254 3 3pF R251 33 L253 RESONATOR 1 2 3 100pF C289 100pF C255 R252 270 R254 8 2K 1K R260 4 1 3 Q261 2 10K 47K 4...

Page 184: ... 1000pF 390nH L114 C166 100pF 022uF C131 R132 100K UNSWB 100pF C174 CSX NU C122 100pF R133 C105 100pF UNSWB DATA CLK UNSWB CR103 2 3 1 Q111 47K 47K 4 7K 10K 4 1 3 100pF C132 2 6 NU Use 82K with new PA PA SHIELD 43K R120 SHIELD SH101 1 R174 R173 R171 C119 100pF 100pF C171 180K 43K 1000pF C133 390nH L115 C134 3300pF 1MEG R136 C135 022uF 200K R109 TX_BIAS VG 15 VL 6 VLIM 19 T1 2 TEMP 30 V10 14 V45 16...

Page 185: ...33 20pF C253 2113740F07 1 5pF C254 2113743N14 3 3pF 0 25 Circuit Ref Motorola Part No Description C255 2113743N50 100pF C257 2113743N50 100pF C258 2113743L41 10000pF 10 C259 2113743L41 10000pF 10 C260 2113743N50 100pF C263 2113743N02 0 75pF 0 25 C264 2113743N50 100pF C265 NOT PLACED C271 2113743N03 1 0pF 0 25 C272 2113743N04 1 1pF 0 25 C273 2113743M24 100000pF 80 20 C276 2104993J02 2 2uF C277 2113...

Page 186: ...33J09 Triple diode SOT 25 CR203 4862824C03 Varactor CR241 4805649Q13 Varactor CR242 4862824C01 Varactor CR243 4862824C01 Varactor CR251 4862824C01 Varactor CR301 4862824C01 Varactor CR302 4862824C01 Varactor CR303 4880154K03 Dual common anode cathode diode CR304 4862824C01 Varactor CR305 4862824C01 Varactor CR306 4802245J42 Ring Quad diode SOT 143 CR308 4802245J41 Pin diode CR310 4862824C01 Varact...

Page 187: ...o Description R338 NOT PLACED R339 0662057M01 0 R340 0662057M96 8200 R342 0662057N23 100K R343 0662057M26 10 R344 0662057N01 12K R345 0662057M98 10K R346 0662057N17 56K R347 0662057M74 1000 R348 0662057M87 3600 R349 0662057C01 0 R350 0662057N23 100K R351 0662057C01 0 R352 0662057M86 3300 R355 0662057M01 0 R400 0662057N15 47K R401 0662057M01 0 R402 NOT PLACED R403 NOT PLACED R405 0662057M01 0 R406 ...

Page 188: ...63J64 16K x 8 EEPROM U409 5102226J56 Microprocessor U410 5102463J57 3 3V Regulator not used in GP328 U420 5102463J44 Audio PA VR300 NOT PLACED VR432 4805656W08 5 6V Zener VR433 4805656W08 5 6V Zener VR434 4802245J73 ZENER DIODE 6 8V VR439 4880140L17 Zener diode 12V VR440 4802245J73 ZENER DIODE 6 8V VR441 4802245J73 ZENER DIODE 6 8V VR442 4802245J73 ZENER DIODE 6 8V VR443 4802245J73 ZENER DIODE 6 8...

Page 189: ... low Press PTT Q502 2 High Check PB504 Check Q502 2 voltage LED Q502 R501 OK Replace Faulty Component Check Accessories J403 OPT_SEL_1 OPT_SEL_2 Pin 8 9 low Radio could not PTT externally U409 Pin 52 6 low See FGU Troubleshoot ing chart LED should light up Check MCU PTT NO YES YES No No NO YES YES NO YES YES NO NO YES YES NO NO YES NO YES NO YES YES NO NO YES EXT SPKR EXT PTT INT AUDIO J403 Pin 9 ...

Page 190: ...IF Freq 45 1MHz Audio heard B Yes No Check 2nd LO Control Voltage at C363 VCO locked B Yes 16 8 MHz check at pin 22 U301 Activity on U301 sel pin Check FGU No No A A Yes Check Q320 bias circuitry for faults Rotate Freq Knob Check controller Before replacing U301 check 2nd VCO Q320 Check VCO O P level C351 C352 Yes No Troubleshooting Flow Chart for Receiver Sheet 1 of 2 ...

Page 191: ...RF amp Q301 Stage Check filter between C310 T301 Yes Check T301 T302 CR306 R308 R309 R310 Yes 1st LO O P OK Locked Yes Check FGU Yes Trace IF signal from L311 to Q302 Check for bad XTAL filter No Yes Q302 collec tor OK IF signal present Beforereplacing U301 check U301 voltages trace IF signal path Yes Check for 2 6 VDC Is R5 present Check Q210 U201 pin 48 voltages and U247 No No No Check U404 volt...

Page 192: ...eck Pin Diodes 2 Check Harmonic Filter Inspect Repair Tx Output Network Is Power OK Done Check Drive to Module Is Drive OK Troubleshoot VCO Inspect PA Network Check Power Out of U101 at Cap C160 Is Power OK Replace U101 Is Power OK Replace Q101 Done Done No Yes Yes No No Yes Low High No Yes Yes No Yes No Troubleshooting Flow Chart for Transmitter ...

Page 193: ...n 47 and Pins 14 15 of U201 Replace or resolder necessary components Is RF level at U201 Pin 32 30 dBm Are R231 R232 R233 C231 C232 C233 OK Replace U201 If L261 C263 C264 are OK then see VCO troubleshooting chart Are 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 9 Replace U201 Check uP U409 Troubleshoo...

Page 194: ...ck U201 Pin 2 for 3 2V Pin 19 0V AUX 4 High Change Q261 V ctrl 0V or 13V L243 Open Circuit Change U241 Change L243 Change U201 Check for faulty parts or dry joints of L271 L273 C370 C386 R339 L320 A A No No Yes Yes Yes No No Yes Yes Yes No Yes No No Yes Yes No No Check R245 for dry joint or faulty No Troubleshooting Flow Chart for VCO ...

Page 195: ...Hz 4W X PMUD1537 GP338 Super Tanapa 330 400 MHz 4W X PMUD1541 GP328 Tanapa 330 400 MHz 4W X PMUD1542 GP338 Tanapa 330 400 MHz 4W X PMLD4136 GP328 B C Kit 330 400 MHz 4W X PMLD4137 GP338 B C Kit 330 400 MHz 4W X PMLN4216 GP328 Front Housing Kit X PMLN4199 GP338 Front Housing Kit X X PMAD4009 VHF 9 cm antenna 336 368 MHz X X PMAD4020 VHF 9 cm antenna 370 400 MHz X 6804110J54 GP328 User Guide X 68041...

Page 196: ...hrs Sealing Passes rain testing per IP54 Shock Meets MIL STD 810 C D E and TIA EIA 603 Vibration Meets MIL STD 810 C D E and TIA EIA 603 Dust Meets MIL STD 810 C D E and IP54 Humidity Meets MIL STD 810 C D E and TIA EIA 603 330 400MHz RF Output NiMH 7 5V Low 1W High 4W Frequency 330 400 MHz Channel Spacing 12 5 20 25 kHz Freq Stability 30 C to 60 C 0 00025 Spurs Harmonics 36 dBm 1 GHz 30 dBm 1 GHz...

Page 197: ...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 160mA while operating in the frequency range of 330 400MHz 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 1300mA while operating in the frequency ...

Page 198: ...rk which is made up of L116 is used to match the antenna s impedance to the harmonic filter This will optimize the performance of the transmitter and receiver into an antenna 3 1 5 Power Control Integrated Circuit PCIC The transmitter uses the Power Control IC PCIC U102 to regulate the power output of the radio The current to the final stage of the power module is supplied through R101 which provi...

Page 199: ...oprocessor Depending on the carrier frequency the DACRx will supply the tuned voltage to the varactor diodes in the filter Wideband operation of the filter is achieved by shifting the bandpass filter across the band The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307 After being amplified by the RF amplifier the RF signal is further filtered by a second varact...

Page 200: ...l filtering once externally provided by the conventional ceramic filters is replaced by internal filters in the IF module U301 The IF IC uses a type of direct conversion process whereby the externally generated second LO frequency is divided by two in U301 so that it is very close to the first IF frequency The IF IC U301 synthesizes the second LO and phase locks the VCO to track the first IF frequ...

Page 201: ...Q315 is an NPN transistor used for switching here Maximum current flowing through the PIN is mainly limited by the resistor R319 Radio signal strength indicator RSSI a voltage signal is used to drive Q315 to saturation hence turning it on RSSI is produced by U301 and is proportional to the gain of the RF amplifier and the input RF signal power to the radio Resistor network at the input to the base...

Page 202: ...ynthesizer must interface with the logic and ASFIC circuitry Programming for the synthesizer is accomplished through the data clock and chip select lines from the microprocessor A 3 3V dc signal from synthesizer lock detect line indicates to the microprocessor that the synthesizer is locked Transmit modulation from the ASFIC is supplied to pin10 of U201 Internally the audio is digitized by the Fra...

Page 203: ...requency is then locked by normal mode charge pump at pin 43 Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which is made up of C258 C259 C228 triple diode CR201 and level shifters U210 and U211 Two 3 3V square waves 180 deg out of phase are first shifted to 5V then along with regulated 5V put through arrays of diodes and capacitors to build up 13 3V...

Page 204: ...equency comparison in the synthesizer a resultant CONTROL VOLTAGE is received at the VCO This voltage is a DC voltage between 3 5V and 9 5V when the PLL is locked on frequency Presc RX TX Matching Network Low Pass Filter Attenuator Pin8 Pin14 Pin10 Level Shifter Network 5V U201 Pin28 VCC Buffers TX RF Injection U201 Pin 32 AUX4 U201 Pin3 AUX3 U201 Pin2 Prescaler Out Pin 12 Pin 19 Pin 20 TX RX BS S...

Page 205: ...matic Diagram on page 6D 16 During the transmit condition when PTT is depressed five volts is applied to U241 pin 19 This activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U241 The RF signal at U241 pin 10 is injected into the input of the PA module U101 pin16 This RF signal is the TX RF INJECTION Also in transmit mode the audio signal to be frequency modula...

Page 206: ...g 3 Reference Designators are assigned in the following manner 100 Series Transmitter 200 Series Frequency Generation 300 Series Receiver 400 500 Series Controller 600 Series Keypad Board 4 Interconnect Tie Point Legend UNSWB Unswitch Battery Voltage 7 5V SWB Switch Battery Voltage 7 5V R5 Receiver Five Volts CLK Clock Vdda Regulated 3 3 Volts for analog Vddd Regulated 3 3 Volts for digital CSX Ch...

Page 207: ...48 L282 C273 3 L243 1 R243 C286 R253 C285 C272 R339 C370 C386 R333 L271 L273 L321 C374 C276 C271 3 L253 1 Q241 PB504 R351 R352 FL301 SH323 L311 C325 C324 C323 R300 VR444 Q315 Q316 R316 R318 R325 RT300 RT301 R338 R327 R319 R326 R334 R335 R314 VR300 C328 C397 C391 CR308 T301 3 4 6 T302 3 4 6 R309 R308 R310 R348 SH303 L310 L309 C375 C320 C319 C322 C381 3 2 Q110 1 R107 R108 L160 C121 C160 C120 U101 9 ...

Page 208: ...10 R111 R241 R252 R251 R242 R245 R244 R349 R331 R330 R332 R110 R112 R254 M300 SH242 L241 L242 L281 L251 U241 10 20 1 11 CR242 CR243 CR241 CR251 CR252 C241 C246 C255 C281 C295 C372 C252 C256 C244 C243 C245 C254 C242 C250 C371 C373 C378 R204 R231 R232 R201 R233 R202 R281 SH202 L261 U210 3 4 U211 3 4 13 25 37 1 U201 CR203 C201 C264 C202 C218 C223 C224 C231 C296 C298 C234 C207 C206 C258 C259 C219 C204...

Page 209: ...VOL MECH_SWB 100pF C503 VR506 6 8V 10V VR439 L505 390nH 24V 2 1 F501 2 CR501 1 BATT_CODE UNSWB BATT BATT RADIO_CODE BATTERY_CONTACT CONN_J B501 2 DATA 1 NEG 3 POS PB501 1 2 SWITCH 01uF C521 6 8V VR440 SB1 1 2 PB502 SWITCH C522 01uF VR441 6 8V PB503 SB2 C523 01uF 6 8V VR442 SWITCH PB504 1 2 1 2 SWITCH VR444 6 8V PTT SB3 6 8V VR443 1 2 SWITCH PB505 01uF C520 EMER 47K R506 Q505 R505 10K Vdda GREEN_LE...

Page 210: ...318 12pF C317 8 2 pF T301 4 6 3 1 2 XFMR TP302 T302 XFMR 4 6 3 1 2 C320 C319 7 5pF 1 8pF 16 28nH L309 R348 3 6K R336 C333 R5 NU NU 33K R327 R316 91K Q315 1 3 2 18K R318 R319 150 C396 NU R300 2 2K 1uF C397 1 33 0K RT300 2 R334 Q316 1 3 2 VR300 R326 NU NU NU NU R325 6 8K R338 R335 RT301 2 1 C391 NU NU NU NU R5 C370 100pF R330 RSSI RX_INJ NU R331 C372 Q310 1 3 2 C371 100pF C386 NU NU NU NU 0 R349 100...

Page 211: ... R311 C326 01uF Q302 R351 0 3 3K R352 12K R315 680nH L330 01uF C325 C323 150pF 20pF C324 750nH L311 GND2 4 GND3 5 OUT 3 IN 6 TBD XTAL FL301 GND 1 GND1 2 IF 10uF C382 C348 0 1uF 0 1uF C329 2 20uH L331 R343 10 0 1uF C344 Vdd_FILTERED SOURCE C343 0 22uF 0 1uF C347 0 1uF C346 Vdda 022uF C334 DB 0 1uF C359 1200pF C358 R344 12K C383 100pF 0 22uF C357 16 8MHz Vdd_FILTERED CLK DATA LVZIF_SEL C350 330pF C3...

Page 212: ...SHIELD SHIELD SH201 SHIELD SH202 L232 12uH 47K R204 CR203 C238 470pF NU C208 1 GND GND1 4 OUT 3 IN 6 FL201 75Z04 100pF C260 100pF C213 5V LOCK AUX4 AUX3 4 3K R255 30 R256 Q210 2 4 1 3 R5 16 8MHz 10K 47K 4 7K 47K 120 R232 620 R231 0 1uF C233 560 R233 C231 0 1uF C234 0 47uF C232 047uF TP202 1 MODOUT 100pF C277 2 2uF C278 4V_3 3V C279 2 2uF 100pF C220 GND 2 NC 4 3 ON_OFF VIN 1 VOUT 5 U248 LP2980 C294...

Page 213: ...ESONATOR 1 2 3 7 5pF C250 7 5pF C242 6 8pF C243 1 2 CR243 A1 A2 CR241 C241 100pF 390nH L242 390nH L241 CR242 R243 10K C244 7pF Rx_sw 1 3 2 Q241 BFQ67W 6 8pF R248 L282 390nH C247 0 1uF C248 100pF R253 7 5K Tx_sw C253 NU 100pF C251 CR252 CR251 13pF C252 13pF C256 180nH L251 C254 2 7pF R251 22 L253 RESONATOR 1 2 3 100pF C289 100pF C255 R252 200 R254 5 6K 1K R260 4 1 3 Q261 2 10K 47K 47K 4 7K 2 4 1 3 ...

Page 214: ... C161 0 1uF 200 R161 330pF C130 C128 022uF 56nH L112 R108 5 6K L160 15 0nH 15pF C160 022uF C152 UNSWB NU C116 C117 9 1pF 11 03nH L109 NU L108 10 R106 100pF C115 C118 NU C125 100pF 100pF C295 300 R112 R110 300 20 R111 R107 C180 TX_INJ_1 TX_INJ NU NU Microstrip Microstrip 1 2 3 C111 22pF C112 56pF L107 33 47nH 0 075 R102 L117 22 0nH C113 10pF BEAD E101 C114 330pF C123 10uF 200 R172 0 1uF C172 C181 Q...

Page 215: ...2113743N50 100pF C264 2113743N50 100pF C271 2113743N03 1pF C272 2113743N03 1pF Circuit Ref Motorola Part No Description C273 2113743M24 100000pF C276 2104993J02 2 2uF C277 2113743N50 100pF C278 2311049A57 10uF C279 2104993J02 2 2uF C281 2113743N50 100pF C285 2113743N50 100pF C286 2113743M24 100000pF C289 2113743N50 100pF C291 2311049A69 10uF 6 3V C292 2113743M24 100000pF C293 2113743A27 0 47uF C29...

Page 216: ... Fuse FL201 4805875Z04 16 8MHz Reference Oscillator FL301 9186153B01 45 1MHz Crystal Filter Circuit Ref Motorola Part No Description FL401 4870368G02 Real Time Clock Crystal Oscil lator not used in GP328 H101 2680499Z01 Heat Spreader J101 0985613Z01 RF Jack J102 0280519Z02 Antenna Nut J400 0905505Y04 40 pin connector J403 0905505Y02 20 pin connector L101 2479990B02 19 61nH L102 2479990B02 19 61nH ...

Page 217: ...ed in GP328 R463 0662057M61 300 R471 0662057N06 20k R472 0662057N12 36k R473 0662057M26 10 Circuit Ref Motorola Part No Description R475 0662057M01 0 R476 0662057N35 330k R477 0662057M74 1000 R478 0662057M98 10k R481 0662057N08 24k R492 0662057M01 0 R501 0662057M70 680 R502 0662057M56 180 R505 0662057M98 10k R506 0662057N15 47k R507 0662057M01 0 RT300 0680590Z01 THERMISTOR_33K RT400 0680590Z01 THE...

Page 218: ...6 C248 C273 C286 C276 C253 C271 C272 L282 3 L243 1 3 L253 1 L271 L273 L321 Q261 3 4 Q241 R333 R339 R243 R248 R253 R260 SH241 C324 C325 C323 FL301 L311 R351 R352 SH323 PB504 C328 C391 C397 Q315 Q316 R326 R300 R314 R316 R318 R319 R325 R327 R334 R335 R338 RT300 RT301 VR300 VR444 C354 C362 C351 C364 C352 C349 C350 C353 C363 C384 C385 CR310 L325 L332 Q320 R355 R322 R345 R320 R321 R324 R346 SH321 C521 P...

Page 219: ...1 C264 C218 C223 C224 C231 C296 C298 C202 C265 C204 C206 C207 C208 C219 C232 C234 C258 C259 C263 C293 CR203 L261 R204 R281 R201 R202 R231 R232 R233 SH202 13 25 37 1 U201 U210 3 4 U211 3 4 1 J101 4 3 2 J102 C108 CR160 CR103 Q111 3 4 R101 R170 C132 C173 C172 CR105 M100 P100 R133 R172 H101 C105 C130 C138 C151 C170 C174 C123 C126 C133 C128 C135 C150 C152 C134 E101 L112 R102 R329 R109 R130 R131 R132 R1...

Page 220: ...00 0 M101 8 VR443 6 8V C0 C0 C1 C1 7 GND GND1 9 1 PC0 2 PC1 4 PC2 PC3 S501 SWITCH Q505 680 RF_JACK R501 C141 C140 4 3pF 1 2 1 2 PB504 SWITCH 9 75nH PB501 SWITCH L116 R506 47K CR501 1 2 6 6 8V VR441 IMX1 5 1 100pF C505 SWITCH PB502 1 2 3 RF_JACK J101 GND 4 1 2 6 8V VR506 if P100 R505 10K R502 180 PB505 SWITCH 1 2 C521 01uF 6 8V VR444 A2 A3 K1 K2 K3 2 4 3 CR160 A1 VR439 10V C503 100pF LI_ION BATT_CO...

Page 221: ... 6K R348 C371 VR300 1 3 2 Q310 L305 22nH 1 8pF L340 390nH 4 6 3 1 2 C319 C302 XFMR T302 SH301 SHIELD 1 12pF R338 1K R303 CR305 R300 2 2K 3 2 R326 3 1 2 Q316 T301 XFMR 4 6 C320 7 5pF 100pF C331 2 7 R328 0 1uF C307 C397 1uF 0 R329 1 R334 R336 SHIELD SH303 R335 11pF C304 100K R307 100pF 91K C375 R316 C318 8 2pF 2 1 150nH L310 RT301 C372 C374 100pF 2 33nH L303 Q315 1 3 Q301 1 3 2 R325 6 8K C381 TP302 ...

Page 222: ... R311 C326 01uF Q302 R351 0 3 3K R352 12K R315 680nH L330 01uF C325 C323 150pF 20pF C324 750nH L311 GND2 4 GND3 5 OUT 3 IN 6 TBD XTAL FL301 GND 1 GND1 2 IF 10uF C382 C348 0 1uF 0 1uF C329 2 20uH L331 R343 10 0 1uF C344 Vdd_FILTERED SOURCE C343 0 22uF 0 1uF C347 0 1uF C346 Vdda 022uF C334 DB 0 1uF C359 1200pF C358 R344 12K C383 100pF 0 22uF C357 16 8MHz Vdd_FILTERED CLK DATA LVZIF_SEL C350 330pF C3...

Page 223: ...8MHZ Y201 NU NU NU R206 SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD SHIELD SH201 SHIELD SH202 L232 12uH 47K R204 CR203 C238 470pF NU C208 1 GND GND1 4 OUT 3 IN 6 FL201 75Z04 100pF C260 100pF C213 5V LOCK AUX4 AUX3 4 3K R255 30 R256 Q210 2 4 1 3 R5 16 8MHz 10K 47K 4 7K 47K 120 R232 620 R231 0 1uF C233 560 R233 C231 0 1uF C234 0 47uF C232 047uF TP202 1 MODOUT 100pF C277 10uF C278 4V_3 3V C279 2...

Page 224: ...2 100pF C285 R241 20 12K R244 L243 RESONATOR 1 2 3 7 5pF C250 7 5pF C242 6 8pF C243 1 2 CR243 A1 A2 CR241 C241 100pF 390nH L242 390nH L241 CR242 R243 10K C244 7pF Rx_sw 1 3 2 Q241 BFQ67W 30 R248 L282 390nH C247 0 1uF C248 100pF R253 15K Tx_sw C253 NU 100pF C251 CR252 CR251 13pF C252 13pF C256 180nH L251 C254 2 7pF R251 22 L253 RESONATOR 1 2 3 100pF C289 100pF C255 R252 200 R254 5 6K 1K R260 4 1 3 ...

Page 225: ...I 5 CJ 7 CL 26 2 6 4 1 3 H99S 4 U102 Q111 C165 100pF C138 200 240pF 5 6K R108 R172 240pF 10pF C171 C113 C127 1000pF C170 240pF 56nH L112 VD1 14 VG1 2 VG2 3 C169 15pF NC1 8 NC2 9 NC3 NC4 RFIN 16 RFOUT1 6 RFOUT2 7 VCNTRL 1 17 EP G2 11 GND1 4 GND2 5 GND3 12 GND4 13 30C65 U101 C115 R171 43K C193 0 1uF R176 NU 11 03nH L109 E101 BEAD 100pF C118 C130 240pF ANT_BIAS R131 18K 100pF C295 C121 100pF C131 022...

Page 226: ... 2113743M24 100000pF C250 2113743N23 7 5pF C251 2113743N50 100pF C252 2113743N29 13pF C253 NOT PLACED Circuit Ref Motorola Part No Description C254 2113743N12 2 7pF C255 2113743N50 100pF C256 2113743N29 13pF C257 2113743N50 100pF C258 2113743L41 10000pF C259 2113743L41 10000pF C260 2113743N50 100pF C263 NOT PLACED C264 2113743N50 100pF C265 NOT PLACED C271 2113743N03 1pF C272 2113743N03 1pF C273 2...

Page 227: ...5649Q13 Varactor CR242 4802245J22 Varactor CR243 4802245J22 Varactor CR251 4862824C01 Varactor CR252 4862824C01 Varactor CR301 4862824C01 Varactor CR302 4862824C01 Varactor CR303 4880154K03 Dual Common Anode Cath ode Diode CR304 4862824C01 Varactor CR305 4862824C01 Varactor CR306 4802245J42 Ring Quad Diode SOT 143 CR308 4802245J41 Pin Diode CR310 4862824C01 Varactor CR411 4802245J62 Schottky Diode...

Page 228: ...escription R339 0662057M01 0 R340 0662057M96 8200 R342 0662057N23 100k R343 0662057M26 10 R344 0662057N01 12k R345 0662057M98 10k R346 0662057N17 56k R347 0662057M74 1000 R348 0662057M87 3600 R349 0662057C01 0 R350 0662057N23 100k R351 0662057C01 0 R352 0662057M86 3300 R355 0662057M01 0 R400 0662057N15 47k R401 0662057M01 0 R402 NOT PLACED R403 NOT PLACED R405 0662057M01 0 R406 0662057N20 75k R407...

Page 229: ...328 U420 5102463J44 Audio Amplifier VR300 NOT PLACED VR432 4805656W08 Quad Zener Diode VR433 4805656W08 Quad Zener Diode VR434 4802245J73 Zener Diode 6 8V VR439 4880140L17 Zener Diode 12V VR440 4802245J73 Zener Diode 6 8V VR441 4802245J73 Zener Diode 6 8V VR442 4802245J73 Zener Diode 6 8V VR443 4802245J73 Zener Diode 6 8V VR444 4802245J73 Zener Diode 6 8V VR445 4802245J74 Zener Diode 10V VR446 480...

Page 230: ...6D 36 Circuit Board Schematic Diagrams and Parts List ...

Page 231: ... low Press PTT Q502 2 High Check PB504 Check Q502 2 voltage LED Q502 R501 OK Replace Faulty Component Check Accessories J403 OPT_SEL_1 OPT_SEL_2 Pin 8 9 low Radio could not PTT externally U409 Pin 52 6 low See FGU Troubleshoot ing chart LED should light up Check MCU PTT NO YES YES No No NO YES YES NO YES YES NO NO YES YES NO NO YES NO YES NO YES YES NO NO YES EXT SPKR EXT PTT INT AUDIO J403 Pin 9 ...

Page 232: ...IF Freq 45 1MHz Audio heard B Yes No Check 2nd LO Control Voltage at C363 VCO locked B Yes 16 8 MHz check at pin 22 U301 Activity on U301 sel pin Check FGU No No A A Yes Check Q320 bias circuitry for faults Rotate Freq Knob Check controller Before replacing U301 check 2nd VCO Q320 Check VCO O P level C351 C352 Yes No Troubleshooting Flow Chart for Receiver Sheet 1 of 2 ...

Page 233: ...RF amp Q301 Stage Check filter between C310 T301 Yes Check T301 T302 CR306 R308 R309 R310 Yes 1st LO O P OK Locked Yes Check FGU Yes Trace IF signal from L311 to Q302 Check for bad XTAL filter No Yes Q302 collec tor OK IF signal present Beforereplacing U301 check U301 voltages trace IF signal path Yes Check for 2 6 VDC Is R5 present Check Q210 U201 pin 48 voltages and U247 No No No Check U404 volt...

Page 234: ...eck Pin Diodes 2 Check Harmonic Filter Inspect Repair Tx Output Network Is Power OK Done Check Drive to Module Is Drive OK Troubleshoot VCO Inspect PA Network Check Power Out of U101 at Cap C160 Is Power OK Replace U101 Is Power OK Replace Q101 Done Done No Yes Yes No No Yes Low High No Yes Yes No Yes No Troubleshooting Flow Chart for Transmitter ...

Page 235: ...n 47 and Pins 14 15 of U201 Replace or resolder necessary components Is RF level at U201 Pin 32 30 dBm Are R231 R232 R233 C231 C232 C233 OK Replace U201 If L261 C263 C264 are OK then see VCO troubleshooting chart Are 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 9 Replace U201 Check uP U409 Troubleshoo...

Page 236: ...ck U201 Pin 2 for 3 2V Pin 19 0V AUX 4 High Change Q261 V ctrl 0V or 13V L243 Open Circuit Change U241 Change L243 Change U201 Check for faulty parts or dry joints of L271 L273 C370 C386 R339 L320 A A No No Yes Yes Yes No No Yes Yes Yes No Yes No No Yes Yes No No Check R245 for dry joint or faulty No Troubleshooting Flow Chart for VCO ...

Page 237: ... GP328 Super Tanapa 29 42 MHz 6W X PMUB1013 GP338 Super Tanapa 29 42 MHz 6W X PMUB1018 GP328 Tanapa 29 42 MHz 6W X PMUB1020 GP338 Tanapa 29 42 MHz 6W X PMLB4002 GP328 B C Kit 29 42 MHz 6W X PMLB4004 GP338 B C Kit 29 42 MHz 6W X PMLN4216 GP328 Front Housing Kit X PMLN4199 GP338 Front Housing Kit X X NAB6064A Low Mid Band Heliflex Antenna Trimmable X 6804110J54 GP328 User Guide X 6804110J55 GP338 Us...

Page 238: ... User Guide X 6804110J55 GP338 User Guide x Indicates one of each is required GP Series LB2 35 50 MHz Model Description AZH25CEC9AA3 with option AZQ203AL GP328 35 50 MHz 6W w o keypad camouflage AZH25CEH9AA6 with option AZQ203AM GP338 35 50 MHz 6W keypad camouflage Item Description X PMUB1051_ GP328 Super Tanapa 35 50 MHz 6W X PMUB1049_ GP338 Super Tanapa 35 50 MHz 6W X PMUB1052_ GP328 Tanapa 35 5...

Page 239: ... testing per IP54 Shock Meets MIL STD 810 C D E and TIA EIA 603 Vibration Meets MIL STD 810 C D E and TIA EIA 603 Dust Meets MIL STD 810 C D E and IP54 Humidity Meets MIL STD 810 C D E and TIA EIA 603 FCC ID AZ489FT1625 Lowband RF Output NiMH 7 5V Low 1W High 6W Frequency 29 42 MHz 35 50 MHz Channel Spacing 12 5 20 25 kHz Freq Stability 30 C to 60 C 0 0010 Spurs Harmonics 36 dBm 1 GHz 30 dBm 1 GHz...

Page 240: ...in16 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...

Page 241: ... transmitter is the greatest and less attenuation high in frequency where there is less harmonic energy The harmonic filter insertion loss is typically less than 0 8 dB 3 1 4 Antenna Matching Network The antenna matching network T100 matches the antenna s impedance with the harmonic filter to optimize the performance of the transmitter and receiver 3 1 5 Power Control Integrated Circuit PCIC The t...

Page 242: ...ff harmonic components from the RF amp The 3 dB corner of this filter is at 56 MHz The output of the lowpass filter is connected to the passive double balanced mixer consisting of components T501 T502 and D501 After mixing with the first local oscillator up converted to a 109 65 MHz IF signal The IF signal coming out of the mixer is transferred to the crystal filter FL301 through a resistor pad R5...

Page 243: ...e IF IC In the absence of an IF signal the VCO searches for a frequency or its frequency will vary close to twice the IF frequency When an IF signal is received the VCO locks onto the IF signal The second LO VCO is a Colpitts oscillator built around transistor Q301 The VCO has a varactor diode CR301 to adjust the VCO frequency The control signal for the varactor is derived from a loop filter consi...

Page 244: ...ates a superfiltered 4 3V which powers the VCOs and buffers In addition to the VCO the synthesizer also interfaces with the logic and ASFIC circuitry Programming for the synthesizer is accomplished through the data clock and chip select lines pins 7 8 and 9 from the microprocessor U409 A 3 3V dc signal from pin 4 indicates to the microprocessor that the synthesizer is locked Transmit modulation fr...

Page 245: ... This circuit provides the necessary dc steering voltage for the VCO and determines the amount of noise and spur passing through To achieve fast locking for the synthesizer an internal adapt charge pump provides higher current at pin 45 of U205 to put the synthesizer within lock range The required frequency is then locked by normal mode charge pump at pin 43 Both the normal and adapt charge pumps ...

Page 246: ...o 4 dBm and provides reverse isolation to the oscillators The amplifier is powered off the 4 3 volt super filter supply and the feed network is combined with the transmit filter 5 2 4 Diplexer and Output Filters The output of the buffer drives a pair of parallel filters One filter is a lowpass filter in the TX pass that passes 29 7 50 MHz signals for the transmitter into the power amplifier while ...

Page 247: ...g 3 Reference Designators are assigned in the following manner 100 Series Transmitter 200 Series Frequency Generation 300 Series Receiver 400 500 Series Controller 600 Series Keypad Board 4 Interconnect Tie Point Legend UNSWB Unswitch Battery Voltage 7 5V SWB Switch Battery Voltage 7 5V R5 Receiver Five Volts CLK Clock Vdda Regulated 3 3 Volts for analog Vddd Regulated 3 3 Volts for digital CSX Ch...

Page 248: ...6E 12 Notes For All Schematics and Circuit Boards ...

Page 249: ...FL301 1 40 J400 22 20 1 21 J403 L100 L101 L102 L103 L104 L105 L106 L107 L110 L201 L202 L203 L210 L226 L301 L302 L303 L304 L306 L308 L400 L401 L503 L504 L507 L508 PB501 PB502 PB503 PB504 PB505 1 2 3 Q100 Q201 Q202 Q204 Q288 Q301 Q400 Q403 4 3 Q405 4 3 Q411 4 3 Q417 Q510 R104 R105 R106 R112 R203 R227 R229 R230 R233 R235 R237 R285 R286 R287 R288 R289 R301 R302 R303 R304 R305 R310 R312 R314 R315 R316 ...

Page 250: ... FL401 3 2 1 J1 1 2 3 4 J101 4 J102 L108 L109 L200 L204 L207 L208 L209 L211 L212 L215 L225 L305 L307 L410 L411 L501 L502 M100 M101 M202 M300 M301 M400 M401 Q203 4 3 Q410 Q416 Q509 R101 R102 R103 R107 R108 R109 R110 R111 R113 R114 R115 R116 R117 R118 R119 R204 R206 R219 R222 R223 R224 R225 R228 R231 R232 R234 R236 R238 R239 R306 R307 R308 R309 R318 R400 R409 R411 R413 R414 R415 R419 R420 R423 R424 ...

Page 251: ...502 SWITCH 1 2 IF224 IF276 IF226 IF267 IF221 IF211 B504 IF217 IF274 IF225 IF214 F1 2 1 IF260 3A 24V IF230 6 8V VR200 IF277 UNSWB _2 MECH_SW_B _2 LI_ION SB3 SB2 UNSWB _1 BATT_CODE_1 BATT_CODE_2 IF278 DEMOD_1 DEMOD_2 EMER_1 EMER_3 RSSI_1 RSSI_2 RESET_1 RESET_3 VOL_1 VOL_2 RED_LED_1 GREEN_LED_1 RED_LED_2 GREEN_LED_2 PTT_1 PTT_2 LVZIF_SEL_1 LVZIF_SEL_2 SB1_1 SB1_2 MECH_SW_B _1 RTA0_1 RTA1_1 RTA0_2 RTA...

Page 252: ...K R515 VR502 6 8V IF325 R5 RX_IN RX_INJ IF300 IF301 IF317 RX FRONT END IF IF307 IF302 1 3 0 47uF C502 CR503 2 4 IF319 Q510 IF318 C514 100pF C511 100pF IF316 IF311 IMX1 CR502 1 5 1 6 CE CLK DATA DEMOD IF R5 RSSI Vdd IF303 PB504 SWITCH 1 2 RX BACK END 16 8MHz 2 4 3 1 5 3 TAB1 6 TAB2 7 2 CR502 2 S502 4 LOW IF322 IF323 IF305 C505 100pF IF309 R501 680 IF310 DEMOD R5 UNSWB _2 GREEN_LED SWB RED_LED BATT_...

Page 253: ...82pF C538 R505 560 2pF C535 L504 560nH K 2 R504 12K D502 R503 1K C506 100pF L507 68nH L508 150nH R512 4 7K SHIELD SH500 SHIELD SH501 3 1 2 R507 270 T501 4 6 270nH L502 XFMR 01uF C522 SHIELD SH502 R509 270 1uH 3 9pF C537 L503 R508 18 C534 10 8 2pF 0 1uF R513 C507 RX_IN RX_INJ C504 51pF IF R5 RECEIVE 47dBm SIGNAL AT 35 04MHz WITH 1K TONE RF MEASUREMENTS MADE WITH BOONTON 92 MILLIVOLTMETER FL0830471O...

Page 254: ... L303 C331 022uF 15pF C316 390nH L305 2 NC 1 4 VCC 5 13pF C313 U302 TC7SU04F GND 3 4700pF C305 C306 8pF 0 1uF C310 1 5K 1uF C340 U301 R312 2 2uH C343 L308 0 22uF 0 1uF C307 5 6K R307 1 5K R301 1 3K R306 SH303 SHIELD SH300 SHIELD C312 C342 13pF 1uF C328 0 1uF C330 022uF VAG 32 VAG_REF 25 VPP 9 13pF C314 RED_VCC 1 RED_VSS 2 ROSE_VCC 30 ROSE_VSS 29 RSSI_FLT 5 RSSI_OUT 4 TESTA 16 TESTD 8 LIM 31 MIX_BY...

Page 255: ...4 11 13 VRO WARP 25 XTAL1 23 XTAL2 24 4 7uF 30 SFOUT 28 TEST1 37 TEST2 38 VBPASS 21 VCP 47 VMULT1 15 VMULT2 14 VMULT3 PD_VDD PREIN 32 PRE_GND 33 34 PRE_VDD PVREF 35 REFSEL 18 SFBASE 27 SFCAP 26 SFIN 43 4 LOCK MODIN 10 41 MODOUT NC1 17 NC2 29 NC3 31 PD_GND 44 5 9 CLK 8 DATA 7 6 DGND DVDD 36 FREFOUT 19 IADAPT 45 INDMULT 16 IOUT 48 AUX2 1 AUX3 2 AUX4 3 AVDD 20 BIAS1 40 BIAS2 39 CCOMP 42 CEX U205 LVFr...

Page 256: ...m TX Value Part Number Value R1 29 7 42 MHz R2 35 50 MHz L209 2462587T20 270 nH 2462587T20 270 nH C222 TX_VCO Designator 0 Vdc TX L207 01uF 620nH L204 4 8uH C202 56 R236 47pF C216 C221 30pF 82pF C229 01uF 1K R234 2 2K R233 C230 01uF C214 36pF L215 01uF C227 SHIELD SH203 5 45nH 1 35uH L203 C203 22pF 270nH L208 3 9 R237 120nH L212 CR202 16pF C226 R238 1K C215 82pF 1 35uH L201 CR203 C218 01uF R232 30...

Page 257: ...IM 200 R103 2 T1 30 TEMP V10 14 16 V45 17 V5EXT 20 VAR1 18 VAR2 24 VAR3 4 INT 22 NA 11 Q 10 QX 1 RFIN 21 RS 31 RSET 23 RX 7 CL 26 CLK 12 CQ 13 CQX 28 DATA F168 9 8 GND1 25 GND2 32 ANO 27 BPOS 29 CEX CI 3 5 CJ R112 100 H99S 4 U102 C115 IF107 IF105 20pF TP100 20pF C103 1000pF C129 C138 01uF 10 R104 R117 C122 1MEG 12K R111 510pF C106 62pF SH100 SHIELD 24K R110 1000pF C131 10 R115 D101 L102 110nH L101...

Page 258: ...1 0 01uF C286 2113743L41 0 01uF C287 2113743L41 0 01uF C297 2113741F49 0 1uF C298 2113743L41 0 01uF Circuit Ref Motorola Part No Description C299 2311049A56 4 7uF C301 2113743N30 15pF C302 Not Placed C303 2113743R33 4700pF C304 2113743R33 4700pF C305 2113743R33 4700pF C306 2113743N65 8pF C307 2113743E20 0 1uF C308 2180478Z20 1uF C309 2113741F49 0 1uF C310 2113743E20 0 1uF C311 2113743N29 13pF C312...

Page 259: ...52C63 1 35uH L203 2405452C63 1 35uH L204 2462587T25 620nH L207 2405452C27 4 7uH L207 2405452C63 1 35uH L208 2462587T20 270nH L208 2462587T19 220nH L209 2462587T20 270nH L209 2462587T19 220nH L210 2405452C63 1 35uH L211 2462587T21 330nH L212 2462587T16 5 45nH Circuit Ref Motorola Part No Description L215 2409348J04 13 85nH L225 2462587L50 100uH L226 2462587Q24 4 7uH L301 2462587V35 120nH L302 24625...

Page 260: ...tch SH100 2686076A01 Shield SH200 2685709B02 Shield SH201 2680511Z01 Shield SH202 2680511Z01 Shield SH203 2686079A01 Shield SH300 2680516Z01 Shield SH301 2680508Z01 Shield SH302 2680697Z01 Shield SH303 2680553Z01 Shield SH400 2680505Z01 Controller Memory Shield SH401 2680506Z01 Controller On Off Shield SH402 2680515Z01 Controller Microprocessor Shield SH403 2680516Z01 Controller ASFIC Cmp Audi PA ...

Page 261: ... Press PTT CR502 2 High Check PB504 Check CR502 2 voltage LED CR502 R501 OK Replace Faulty Component Check Accessories J403 OPT_SEL_1 OPT_SEL_2 Pin 8 9 low Radio could not PTT externally U409 Pin 52 6 low See FGU Troubleshoot ing chart LED should light up Check MCU PTT NO YES YES No No NO YES YES NO YES YES NO NO YES YES NO NO YES NO YES NO YES YES NO NO YES EXT SPKR EXT PTT INT AUDIO J403 Pin 9 l...

Page 262: ...F Freq 109 65 MHz Audio heard B Yes No Check 2nd LO Control Voltage at C308 VCO locked B Yes 17 0 MHz check at pin 22 U303 Activity on U303 sel pin Check FGU No No A A Yes Check Q301 bias circuitry for faults Rotate Freq Knob Check controller Before replacing U303 check 2nd VCO Q301 Check VCO O P level C315 C316 Yes No Troubleshooting Flow Chart for Receiver Sheet 1 of 2 ...

Page 263: ...es Check RF amp Q509 Stage Check filter between Q509 T301 Yes Check T501 T502 D501 R507 R508 R509 C516 L508 Yes 1st LO O P 310OK Locked Yes Check FGU Yes Trace IF signal from L301 to U301 Check for bad XTAL filter No Yes U301 drain OK IF signal present Beforereplacing U303 check U303 voltages trace IF signal path Yes Biaising on U301 OK Troubleshoot biasing AGC circuits and U301 No No Yes A B weak...

Page 264: ...ias Inspect Repair Tx Output Network Is Power OK Done Check input to U101 Pin 16 Is voltage 1 Vpp Troubleshoot VCO Check level U101 Pin 6 Is level 5 Vpp Is Power OK Replace Q101 Yes No No Yes No Yes No Yes Yes No Yes No Troubleshooting Flow Chart for Transmitter Check components around U101 Is Power OK Done Replace U101 No Check components around Q100 Yes Done ...

Page 265: ...onents Is RF level at U205 Pin 32 30 dBm Are loop filter parts R224 R225 R227 R 228 R229 C256 C2 57 C259 and C260 Replace U201 If R234 R238 C297 are OK then see VCO troubleshooting chart Do Pins 7 8 9 of U205 toggle when channel is changed Check programming lines between U409 and U205 Pins 7 8 9 Replace U205 Check uP U409 Troubleshooting Chart NO YES NO YES NO NO YES NO YES YES NO YES YES YES NO N...

Page 266: ...1 No RX LO or No signal at U205 Pin 32 in RX No TX LO or No signal at U205 Pin 32 in TX Level 10 dBm Check signal at drain of Q203 Level 3 dBm Check signal at drain of Q202 and Q204 Level 7 dBm No Yes Replace Q201 Yes Yes Done Check DC volt age across R203 Problem fixed Replace Q203 Check C215 C216 L207 L208 L209 U203 Level 500 mV Check C200 C202 C203 C222 C223 L201 L203 TR201 CR202 Replace Q202 a...

Page 267: ...VS_GAINSEL SrD_Rtn MISO SrD_Snd DATA R_W LCD_SEL DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 A0 SCK_Snd CLK VS_RAC Gnd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 CONTROLLER J200 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 EXT_MIC VS_CS SW_B Vddd VS_AUDSEL Det_Aud_Snd Rx_Aud_Rt...

Page 268: ...niversal Connector Flex Reference Symbol Motorola Part No Description J100 0980521Z01 Connector 40 pin J200 0905505Y04 Speaker 20 ohm Back Metal View From Top Side c 9 8 8 4 8 0 5 4 9 Z 0 3 r e v B C402 M400 20 J403 J404 J405 J406 J407 J408 J409 J410 J411 J412 J413 J414 J415 J416 M401 Front Metal View From Top Side ...

Page 269: ...3 PIN UNIVERSAL CONN EXT_SPKR EXT_SPK OPT_B EXT_MIC OPT_SEL_2 OPT_SEL_1 GND RX_DATA TX_DATA J404 J405 J406 J407 J408 J409 J410 J411 J412 SPKR_20 SPKR_20 OPT_B 30 RSSI RX_AUDIO TX_AUDIO BOOT_CTRL NC J413 J414 J415 J416 1 2 C402 100pF M401 GND INT_SPK INT_SPK EXT_SPKR EXT_SPK DPT_B EXT_MIC OPT_SEL_2 OPT_SEL_1 GND RX_DATA TX_DATA GND RSSI RX_AUDIO TX_AUDIO BOOT_CTRL NC MIC GND GND 1 2 3 4 5 6 7 8 9 1...

Page 270: ...7 4 Parts List for Universal Connector Flex ...

Page 271: ...anual No 6804110J64 Kindly complete the Service Manual Feedback Form on the next page to help us ensure that you receive the most accurate and complete information Fax to 6 04 6124944 The Technical Publications Coordinator Media and Communications R D Department Motorola Penang Your Details Name Contact Person Company Name Address Telephone No Fax No Email Address How would you like to receive the...

Page 272: ...ic equipment o very much so o generally yes o to some extent o no 4 We would appreciate any corrections or recommendations for improving this manual Please include the specific page number s of the diagram or procedure in question 5 General comments suggestions Manual No 6804110J64 Fax to 6 04 6124944 The Technical Publications Coordinator Media and Communications R D Department Motorola Penang Co...

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