SmarTrunk Systems SC-1000C Service Manual Download Page 6 | Manualshive

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SmarTrunk Systems SC-1000C Service Manual Download Page 6

3.

ST-1000 SIMPLIFIED DIAGRAM

LPF

Ant Sw

D1/D4

Final
AMP

Q2

Power

Detection

D2

Driver

Q3

Buffer

AMP

Q1

TX CTRL

[U3]

CLOCK

[Y2]

POWER

CTRL

[U3]

FLASH

MEMORY

[U4]

RAM

MEMORY

[U7]

PWM

SIDE

KEYS

SERIAL

PORT

Main Processor

[U8]

Radio

U1

MIC

AMP

[U11]

AUDIO

PA

[U9]

All manuals and user guides at all-guides.com

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Summary of Contents for SC-1000C

Page 1: ...ST 1000C 400Mhz 470Mhz UHF FM COMPACT DIGITAL TRANSCEIVER SERVICE MANUAL SmarTrunk Systems INC ST 1000C SM R1 1a All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ... 9 4 2 5 Sub audio signaling 9 4 2 6 ANALOG AUDIBLE SIGNALING 9 4 2 7 DIGITAL AUDIO PROCESSING 9 4 3 Transmitter System 10 4 3 1 ANALOG TX SIGNAL 10 4 3 2 DIGITAL TX AUDIO 10 4 3 3 Driver and Final Amplifier Stages 10 4 3 4 Automatic Transmit Power Control 11 5 RC 1000 ALIGNMENT 12 5 1 Introduction 12 6 COMPLIMENTARY USER ALIGNMENT 13 6 1 OPTION ALIGNMENT 13 6 1 1 SQUELCH LEVEL 13 6 1 2 ANNUNCIATI...

Page 3: ... ST 1000 TOP LAYER COMPONENTS LOCATION 18 11 2 ST 1000 BOTTOM LAYER COMPONENTS LOCATION 19 12 ST 1000 PCB LAYOUT 20 12 1 ST 1000 TOP LAYER PCB LAYOUT 20 12 2 ST 1000 BOTTOM LAYER PCB LAYOUT 21 12 3 ST 1000 PCB GROUND LAYER 22 12 4 ST 1000 PCB POWER LAYER 23 13 ST 1000 BOM 24 14 ST 1000C MECHANICAL BOM 30 15 ACCESSORY PORT 32 16 ST 1000 SERVICE MANUAL REVISIONS 34 All manuals and user guides at all...

Page 4: ...TRANSMIT MAX RF power 2 W Frequency Stability 1PPM Bandwidth Khz 12 5 25 Adjacent Channel Power 65dBC typ SNR 45dB typ Analog harmonic distortion 5 typ AF 1Khz 60 deviation Data transmit rate 2400 4800bps Max frequency deviation 2 5Khz 12 5Khz BW 5Khz 25Khz BW Analog Modulation type 11K0F3E 25K0F3E FDMA Digital emissions 8K30F1E 8K30F1D 8K30F1W Ext Mic Impedance 600 Ohms RECEIVER Analog Sensitivit...

Page 5: ...2 ST 1000 EXPLODED VIEW All manuals and user guides at all guides com ...

Page 6: ... Q2 Power Detection D2 Driver Q3 Buffer AMP Q1 TX CTRL U3 CLOCK Y2 POWER CTRL U3 FLASH MEMORY U4 RAM MEMORY U7 PWM SIDE KEYS SERIAL PORT Main Processor U8 Radio U1 MIC AMP U11 AUDIO PA U9 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 7: ...Notes All manuals and user guides at all guides com ...

Page 8: ...filtered by a low pass filter to be applied to the antenna 4 2 Receiver System 4 2 1 Front end RF Receiver Incoming RF signals from the antenna are delivered to the Receiver Unit and pass through a Low pass filter antenna switching diode and then fed to the receiver U1 passing through a limiter BPF 4 2 2 ANALOG Audio Processing The RF signal is tuned by U1 which includes a base band DSP audio proc...

Page 9: ... to the processor where the firmware compares it with the value programmed into the current channel programming If the received signaling matches the channel programming then the main processor U8 opens the audio patch 4 2 6 ANALOG AUDIBLE SIGNALING DTMF signals MDC1200 and tone signals are processed and decoded by the main processor U8 Decoded information or received tone is analyzed by firmware ...

Page 10: ...rnal microphone J4 are fed directly to the main processor U8 which perform the signal filtering the data codification into especial firmware block The result of the digitized information is processed by a FEC Frame Error Correction module adding spare bits to ensure high robustness to the data then it is encrypted and the user related information as user ID is added The final data frame is fed to ...

Page 11: ...essor U8 The special firmware module compares the transmitted power against the referred level stored on current channel memory adjusting the power control level generated as reference by one DAC output on the same processor U8 then amplified by U3 MCP6241U controlling the gate current on Q1 and Q17 Notes All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 12: ... is carefully aligned in factory for the specified performance across the frequency range depending for each version As the core of the radio is firmware only all processes are the result of the internal feed back where alignment by user is not required All manuals and user guides at all guides com ...

Page 13: ... soon as you click on Options the Options screen is popped up From this screen the user can adjust some parameters as 6 1 1 SQUELCH LEVEL ST 1000 supports a dBm scaled squelch adjustment To set a desired squelch reference please select you desired squelch level form the list Press OK to store it in the file The value will be updated after the file is transferred to the radio 6 1 2 ANNUNCIATION You...

Page 14: ...d 6 1 4 1 VOX sensitivity level To adjust the VOX sensitivity level please press on the down arrow of the scroll down box on the right side of the Level label and then select the desired value Low values means less sensitivity noisy environments 6 1 4 2 VOX inhibit on receive In case you do not use headphones the audio received on the speaker can be captured by the microphone setting the radio on ...

Page 15: ...is already getting the incoming voice On this way no word is missed on the air To activate this feature please check the Vox Delay box 6 1 5 Battery save If the radio is not active on any conversation it is not necessary that all radios internal functionalities remain active To save battery by disabling some radio functionalities temporary when the radio is not involved on any conversation please ...

Page 16: ... SMARTRUNK SYSTEMS INC 16 Press OK to store your changes into the radio file The information will be updated to the radio once you transfer the file All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 17: ...1 VDDCORE 12 AD2 13 AD9 14 PA23 15 AD3 16 GND2 17 VDDIO1 18 PA16 19 PA15 20 SCK 21 MOSI 22 PA24 23 VDDCORE1 24 PA25 25 PA26 26 MISO 27 CS0 28 UTXD 29 URXD 30 PA8 31 PA9 32 PB4 33 TXD0 34 RXD0 35 PA4 36 PA27 37 PA28 38 NRST 39 TST 40 PA29 41 CS2 42 CS3 43 PA2 44 VDDIO2 45 GND3 46 PWM1 47 PWM0 48 PB5 49 JTAGSEL 50 PB6 51 CS1 52 PB7 53 PB12 55 VDDCORE2 54 USBM 56 USBP 57 VDDIO3 58 DAC0 59 GND4 60 XOU...

Page 18: ...11 ST 1000C COMPONENT LOCATOR 11 1 ST 1000C TOP LAYER COMPONENTS LOCATION All manuals and user guides at all guides com ...

Page 19: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 19 11 2 ST 1000C BOTTOM LAYER COMPONENTS LOCATION All manuals and user guides at all guides com ...

Page 20: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 20 12 ST 1000C PCB LAYOUT 12 1 ST 1000C TOP LAYER PCB LAYOUT All manuals and user guides at all guides com ...

Page 21: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 21 12 2 ST 1000 BOTTOM LAYER PCB LAYOUT All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 22: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 22 12 3 ST 1000C PCB GROUND LAYER All manuals and user guides at all guides com ...

Page 23: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 23 12 4 ST 1000C PCB POWER LAYER All manuals and user guides at all guides com ...

Page 24: ...2 1nF CK1102AK5X C78 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C80 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C81 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C82 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C83 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C84 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C85 CAP 1000PF 50V CERAMIC X7R 0402 1nF CK1102AK5X C86 CAP 1000PF 50V CERAMIC...

Page 25: ...F CK1151AK5A C14 CAP CER 150PF 50V C0G 0402 150pF CK1151AK5A C16 CAP CER 150PF 50V C0G 0402 150pF CK1151AK5A C18 CAP CER 150PF 50V C0G 0402 150pF CK1151AK5A C54 CAP CER 150PF 50V C0G 0402 150pF CK1151AK5A C66 CAP CER 150PF 50V C0G 0402 150pF CK1151AK5A C57 CAP CER 47PF 50V 5 NP0 0603 47pF CK1470AD4AR C35 CAP CERAMIC 56PF 100V 10 NPO 0603 56pF CK1560AD4A C27 CAP CERAMIC 2PF 100V NPO 0603 2pF CK4020...

Page 26: ...V Y5V 0805 10uF CK0106AB7R C200 CAP CER 10UF 10V Y5V 0805 10uF CK0106AB7R C206 CAP CER 10UF 10V Y5V 0805 10uF CK0106AB7R C11 CAP 10UF 16V CERAMIC Y5V 0402 100nF CK5104AK5X C15 CAP 10UF 16V CERAMIC Y5V 0402 100nF CK5104AK5X C49 CAP 10UF 16V CERAMIC Y5V 0402 100nF CK5104AK5X C61 CAP 10UF 16V CERAMIC Y5V 0402 100nF CK5104AK5X C63 CAP 10UF 16V CERAMIC Y5V 0402 100nF CK5104AK5X C69 CAP 10UF 16V CERAMIC...

Page 27: ...02 470pF CK1471AK4A C44 CAP CERAMIC 6 8PF 250V COG SMD 6 8pF CK9689AD4A D1 DIODE RF PIN 80V 100MA SC79 BAR88 EDBAR0886Y D4 DIODE RF SGL 50V 100MA SOD 323 BAR63 EDBAR0063Y D3 SILICON SCHOTTKY BARRIER DIODE HSM88AS EDHSM0088A Y2 12 8MHZ OSCILLATOR VC TXCO VC TXCO EFO128000Y D5 LED GREEN RED BICOLOR 0606 SMD LTST C195KGJRKT EX01Y40203 F1 FUSE 3A 32V 0603 FAST C2Q C2Q 3 EX02Y40258 R30 RES 10 OHM 1 16W...

Page 28: ... RES 1 0K OHM 1 16W 5 0402 SMD 1K RCY041024Z R103 RES 1 0K OHM 1 16W 5 0402 SMD 1K RCY041024Z R106 RES 1 0K OHM 1 16W 5 0402 SMD 1K RCY041024Z C174 RES 1 0K OHM 1 16W 5 0402 SMD 1K RCY041024Z R5 RES 10K OHM 1 16W 5 0402 SMD 10K RCY041034Z R8 RES 10K OHM 1 16W 5 0402 SMD 10K RCY041034Z R22 RES 10K OHM 1 16W 5 0402 SMD 10K RCY041034Z R52 RES 10K OHM 1 16W 5 0402 SMD 10K RCY041034Z R67 RES 10K OHM 1 ...

Page 29: ...OHM 1 16W 5 0402 SMD 47K RCY044734Z R31 RES 470K OHM 1 16W 5 0402 SMD 470K RCY044744Z R17 RES 560 OHM 1 16W 5 0402 SMD 560 RCY045614Z R32 RES 56K OHM 1 16W 5 0402 SMD 56K RCY045634Z R36 RES 82K OHM 1 16W 5 0402 SMD 82K RCY048234Z L14 RES 0 0 OHM 1 16W 0603SMD 0 RCY060004ZR C55 RES 0 0 OHM 1 16W 0603SMD 0 RCY060004ZR C56 RES 0 0 OHM 1 16W 0603SMD 0 RCY060004ZR L7 RES 0 0 OHM 1 16W 0603SMD 0 RCY0600...

Page 30: ...4704Z R99 RES 47 OHM 1 16W 5 0402 SMD 47 RCY044704Z R100 RES 47 OHM 1 16W 5 0402 SMD 47 RCY044704Z U8 IC MCU 32BIT 512KB FLASH 64LQFP ATSAM4S8BA YNATSAM04S 14 ST 1000C MECHANICAL BOM ST 1000C BOM MECHANICAL LOCATION DESCRIPTION VALUE SMARTRUNK PN J2 ROTARY SELECTOR ROTARY EWRT32010S RV1 LINEAR POTENTIOMETER WITH SWITCH 10K EWSP30000S J4 3 5MM JACK 3 CONTACTS SINGLE SWITCH 3 5MM EX06B40000 J5 2 5MM...

Page 31: ...0206005Z FRONT HOUSING PL1000011A LED BAR PL1000100A MIC RUBBER QL1000270A PTT RUBBER PL1000060A REAR COVER PL1000050A REAR COVER SET SCREW M3X0 5PX6 BLACK JS052206MB MAIN CHASSIS SET SCREW M3X0 5PX8 JS052308MN MAIN PCB SET SCREW M2X0 5PX4 JS052103MN AC ADAPTOR ETSGS2U009 ANTENNA EX10N41858 MIC RUBBER CAP QL1000071A MAIN CHASSIS INSULATING PLATE BLACK XZZZZ1000C HEAT CONDUCTOR 8mmX5mmX2 5tmm QL100...

Page 32: ... Speaker Microphone Pin Out 3 5mm Plug Sleeve Mic PTT Rx Data to the radio Ring Mic Tip V from the radio 2 5mm Plug Sleeve Speaker PTT Data GND Ring TX Data from the radio Tip Speaker Connect Sleeve to Sleeve for PTT All manuals and user guides at all guides com ...

Page 33: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 33 All manuals and user guides at all guides com ...

Page 34: ...T 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 34 16 ST 1000C SERVICE MANUAL REVISIONS AUTHOR RELEASE DATE REMARKS DANIEL MARTIN 1 0 AUG 2014 INITIAL RELEASE VERSION All manuals and user guides at all guides com ...

Page 35: ...ST 1000C SM R 1 0 SMARTRUNK SYSTEMS INC 35 Copyright 2014 Printed in Malaysia www smartrunk com ST 1000C SM R1 0 All manuals and user guides at all guides com ...

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