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SmartTrunk Systems ST-1000C Service Manual

Uhf fm compact digital transceiver
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ST-1000C
(400Mhz ~ 470Mhz)
UHF FM COMPACT DIGITAL TRANSCEIVER
SERVICE MANUAL
SmarTrunk Systems, INC.
ST-1000C SM R1.1a

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Summary of Contents for SmartTrunk Systems ST-1000C

  • Page 1 ST-1000C (400Mhz ~ 470Mhz) UHF FM COMPACT DIGITAL TRANSCEIVER SERVICE MANUAL SmarTrunk Systems, INC. ST-1000C SM R1.1a...

  • Page 2: Table Of Contents

    COMPLIMENTARY USER ALIGNMENT..................13 6.1. OPTION ALIGNMENT: ......................13 6.1.1. SQUELCH LEVEL: ........................ 13 6.1.2. ANNUNCIATION ........................ 13 6.1.3. Tones ..........................14 6.1.4. Voice activated transmission ..................... 14 6.1.4.1. VOX sensitivity level ...................... 14 ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 3 ST-1000 BOTTOM LAYER PCB LAYOUT ..................21 12.3 ST-1000 PCB GROUND LAYER ....................22 12.4 ST-1000 PCB POWER LAYER ...................... 23 ST-1000 BOM ..........................24 ST-1000C MECHANICAL BOM......................30 ACCESSORY PORT: ......................... 32 ST-1000 SERVICE MANUAL REVISIONS ..................34 ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 4: Specifications

    0.3uV (5% BER) Image rejection 60dB typ Adjacent Channel selectivity 60dB typ @25KHz BW HUM and NOISE ratio 40dB Speaker Audio Power External audio power Specifications subject to change without notice or obligation ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 5: St-1000 Exploded View

    ST-1000 EXPLODED VIEW...

  • Page 6: St-1000 Simplified Diagram

    ST-1000 SIMPLIFIED DIAGRAM TX CTRL [U3] Power Final Buffer Ant Sw Driver Detection D1/D4 Radio CLOCK POWER [Y2] CTRL [U3] AUDIO [U9] Main Processor [U8] [U11] FLASH MEMORY [U4] MEMORY [U7] SIDE SERIAL KEYS PORT...
  • Page 7 Notes:...

  • Page 8: St-1000 Rf Description

    (U1) as the result of the analysis of the signal and the noise of the carrier. The output is sent to 4.2.1. Front-end RF Receiver the main processor as a digital frame, which is analyzed by radio ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 9: Virtual Volume Control

    If the received signaling matches then applies filter it, adjust the the channel programming, then volume and fed it to the audio the main processor (U8) opens the power amplifier (U10) through one audio patch. ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 10: Transmitter System

    The transmit signal then passes clock generator and U1 with a through the antenna switch D1 corresponding balance controlled (BAR88) and is low-pass filtered to by software. suppress harmonic spurious radiation before delivery to the antenna. ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 11: Automatic Transmit Power Control

    DAC output on the same processor (U8) then amplified by U3 (MCP6241U) controlling the gate current on Q1 and Q17. Notes: ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 12: Rc-1000 Alignment

    As the core of the radio is firmware only, all processes are the result of internal feed-back where alignment by user is not required. ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 13: Complimentary User Alignment

    Options screen is popped up: 6.1.2. ANNUNCIATION You can enable or disable voice annunciation. To enable it, please check the Voice into Options alignment screen: From this screen the user can adjust some parameters as: ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 14: Tones

    To activate this feature, please VOX feature when the radio is check the VOX-Enabled Box. receiving voice. To enable this feature, check the Vox Inhibit On Receive box: ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 15: Vox Delay

    To activate this feature, please check the Vox Delay box: Please use the drop down list on the right side of Mic Sensibility label select desired microphone sensitivity gain. ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 16 Press OK to store your changes into the radio file. The information will be updated to the radio once you transfer the file. ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 17: St-1000 Schematic

    PTUN LCB1608-600 TX5V References: 7. ST-1000C SCHEMATIC TX5V Pink components not loaded on ST-1000 PCTRL IRQR BEAD 150pF BEAD 10nF 10nF .82uH 100nF 150pF 27nH AVDD1 RSCK 150pF 150pF 10nF AVDD6 RDIO 10nF 27nH MOSI PABIAS 27nH 150pF AVDD2 AVDD5...

  • Page 18: St-1000 Component Locator

    11 ST-1000C COMPONENT LOCATOR 11.1 ST-1000C TOP LAYER COMPONENTS LOCATION...

  • Page 19: St-1000 Bottom Layer Components Location

    11.2 ST-1000C BOTTOM LAYER COMPONENTS LOCATION ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 20: St-1000 Pcb Layout

    12 ST-1000C PCB LAYOUT 12.1 ST-1000C TOP LAYER PCB LAYOUT ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 21: St-1000 Bottom Layer Pcb Layout

    12.2 ST-1000 BOTTOM LAYER PCB LAYOUT ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 22: St-1000 Pcb Ground Layer

    12.3 ST-1000C PCB GROUND LAYER ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 23: St-1000 Pcb Power Layer

    12.4 ST-1000C PCB POWER LAYER ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 24: St-1000 Bom

    13 ST-1000C BOM ST-1000C BOM VERSION 1.0 SMARTRUNK NAME DESCRIPTION VALUE MAIN P.C.B. EPT100010A CAP CERAMIC 0.5PF 50V C0G 0402 .5pF CK1059AK1A CAP CERAMIC 0.5PF 50V C0G 0402 .5pF CK1059AK1A C150 CAP CERAMIC 100PF 50V NP0 0402 100pF CK1101AK5A CAP CER 1000PF 50V 0603 LOW DIST...
  • Page 25 CK4330AD4A CAP CERAMIC .01UF 50V X7R 0402 10nF CK5103AK5X CAP CERAMIC .01UF 50V X7R 0402 10nF CK5103AK5X CAP CERAMIC .01UF 50V X7R 0402 10nF CK5103AK5X CAP CERAMIC .01UF 50V X7R 0402 10nF CK5103AK5X ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 26 CAP CER 1.0UF 6.3V X5R 20% 0402 CK6105AK6T C154 CAP CER 1.0UF 6.3V X5R 20% 0402 CK6105AK6T C156 CAP CER 1.0UF 6.3V X5R 20% 0402 CK6105AK6T C153 CAP CER 1.0UF 6.3V X5R 20% 0402 CK6105AK6T ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 27 RES 1.0K OHM 1/16W 5% 0402 SMD RCY041024Z RES 1.0K OHM 1/16W 5% 0402 SMD RCY041024Z RES 1.0K OHM 1/16W 5% 0402 SMD RCY041024Z RES 1.0K OHM 1/16W 5% 0402 SMD RCY041024Z RES 1.0K OHM 1/16W 5% 0402 SMD ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 28 RES 56K OHM 1/16W 5% 0402 SMD RES 22 OHM 1/16W 5% 0402 SMD RCY042204Z RES 22 OHM 1/16W 5% 0402 SMD RCY042204Z RCY042224Z RES 2.2K OHM 1/16W 5% 0402 SMD RCY042224Z RES 2.2K OHM 1/16W 5% 0402 SMD ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 29 TRANSISTOR 2SK3476 YCBAD18592 BEAD COIL BEAD YCBAD18592 BEAD COIL BEAD YCBAD18592 BEAD COIL BLM18K121 15nH YCMCI1533D INDUCTOR YCMCI1533D INDUCTOR 15nH YCMCI2733D INDUCTOR 27nH YCMCI2733D INDUCTOR 27nH YCMCI8243D INDUCTOR .82uH YCSPG18424 SPRING COIL 27nH ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 30: St-1000C Mechanical Bom

    RES 47 OHM 1/16W 5% 0402 SMD RCY044704Z RES 47 OHM 1/16W 5% 0402 SMD R100 RCY044704Z IC MCU 32BIT 512KB FLASH 64LQFP ATSAM4S8BA YNATSAM04S 14 ST-1000C MECHANICAL BOM ST-1000C BOM (MECHANICAL) LOCATION DESCRIPTION VALUE SMARTRUNK PN ROTARY SELECTOR ROTARY...
  • Page 31 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 QL1000A10A ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 32: Accessory Port

    Rx Data (to the radio) Ring Mic + (from the radio) 2.5mm Plug Speaker – PTT Sleeve Data GND Ring TX Data (from the radio) Speaker + Connect Sleeve to Sleeve for PTT ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 33 ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

  • Page 34: St-1000 Service Manual Revisions

    16 ST-1000C SERVICE MANUAL REVISIONS AUTHOR RELEASE DATE REMARKS DANIEL MARTIN AUG-2014 INITIAL RELEASE VERSION ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.
  • Page 35 Copyright 2014 Printed in Malaysia www.smartrunk.com ST-1000C SM R1.0 ST-1000C SM R 1.0 SMARTRUNK SYSTEMS, INC.

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