Ericsson MPI-II LBI-38558B Maintenance Manual
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Ericsson MPI-II LBI-38558B Maintenance Manual

403-512 mhz synthesized personal radio combination
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LBI-38558B
Mobile Communications
MPI-II
403-512 MHz SYNTHESIZED
PERSONAL RADIO
COMBINATION
TABLE OF CONTENTS
TRANSMIT/RECEIVE ASSEMBLY . . . . . . . . . . . . LBI-38559
SYNTHESIZER BOARD . . . . . . . . . . . . . . . . . . LBI-38807
SERVICE SECTION . . . . . . . . . . . . . . . . . . . . LBI-38561
Printed in U.S.A.
Maintenance Manual

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Summary of Contents for Ericsson MPI-II LBI-38558B

  • Page 1 LBI-38558B Mobile Communications MPI-II 403-512 MHz SYNTHESIZED PERSONAL RADIO COMBINATION TABLE OF CONTENTS TRANSMIT/RECEIVE ASSEMBLY ... . LBI-38559 SYNTHESIZER BOARD ....LBI-38807 SERVICE SECTION .

  • Page 2: Table Of Contents

    10 MHz 1 dB degradation 15 MHz 3 dB degradation RF Power 2 Watts (with 7.5V battery) 4 Watts (with 10V battery) Power Output 10.0 V battery 4 Watts 7.5 V battery 2 Watts (Continued) Copyright© February 1991, Ericsson GE Mobile Communications Inc.

  • Page 3: Options And Accessories

    140 milliseconds (EIA) Receiver Recovery Time 110 milliseconds (EIA) SPEAKER MICROPHONE (Option MPAE1N) SWIVEL PLATE (Option MPHC1D) NOTE The software contained in this device is copyrighted by Ericsson/GE Company. Unpublished rights are reserved under the copyright laws of the United States.
  • Page 4 LBI-38558 OPTIONS AND ACCESSORIES OPTIONS AND ACCESSORIES 120V DESK CHARGER (Option MPPS3G) VEHICULAR CHARGER (Option MPPS3K) 120V C/3 DESK CHARGER (Option MPPS3H) 7.5V BATTERY (Option PA1M) 220V DESK CHARGER (Option MPPS3U) 10V BATTERY (Option PA1M) 220V C/3 DESK CHARGER (Option MPPS3V) MPI-II RADIO PACKAGE NUMBERS PACKAGE NUMBER DESCRIPTION...
  • Page 5 LBI-38558 Figure 1 - Synthesized MPI Radio Block Diagram (UHF)

  • Page 6: Description

    LBI-38558 will transmit and receive on the programmed frequencies. In the tone format, the first tone may be from tone group DESCRIPTION STANDARD FEATURES The Talk-Around feature is enabled by moving the toggle A (for Individual or Group calls) or from tone group C (for switch to the rear position.

  • Page 7: Motorola Format

    LBI-38558 TABLE 1-TONE GROUPS TABLE 2 - TONE GENERATOR FREQUENCIES Tone number 9 in Tone Group 4 is 524.6 Hz. Example 2 - Group Call 98 (also code 48 and 88): Tone number 8 in Tone Group 2 is 879.0 Hz. The digit "9"...

  • Page 8: Radio Programmer

    330,456,561 Any IBM compatible Personal Computer using MS DOS 116,737 517,741 515,663,743 and an Ericsson/GE Programmer Interface Box TQ-3310 plus the proper programming software are used to program the 322,503 321,673 MPI-II radio. The Programmer Interface Box connects be- 345,532...

  • Page 9: Operation

    LBI-38558 3. With the toggle switch toward the OPERATION rear of the radio, the radio will be in one of two states: The Synthesized MPI-II Personal Radio is designed to provide personal communications in a lightweight, handheld Talk-Around: The radio will now unit.

  • Page 10: To Send A Message

    LBI-38558 TO SEND A MESSAGE BATTERIES 1. Turn on and adjust the radio as directed in the "To Re- The MPI-II radio uses a rechargeable battery. A 7.5 Vdc ceive a Message" section. battery is shipped with 2 watt radios and a 10 Vdc battery is shipped with 4 watt radios.

  • Page 11: Interconnection Diagram

    LBI-38558 INTERCONNECTION DIAGRAM (19D902895, Sh. 1, Rev. 1)

  • Page 12: Mechanical Layout

    MECHANICAL LAYOUT LBI-38558 MPI-II HARDWARE KIT (UHF) 19A702379G6 (440-470 MHz & 470-512 MHz) 19A702379G7 (403-440 MHz) ISSUE 2 SYMBOL PART NO. DESCRIPTION 19A702362P208 Machine screw, TORX Drive: M2.5-.45 x 8. (Quantity 1). 19A703007P412 Machine screw, TORX Drive: M2.5-.45 x 12. (Quantity 2).

  • Page 13: Mechanical Parts Breakdown

    LBI-38558 MECHANICAL PARTS BREAKDOWN MICROPHONE BOARD FRONT COVER ASSEMBLY 19D900647G8 ISSUE 4 SYMBOL PART NO. DESCRIPTION MIKE COMPONENT BOARD 19C851948G3 - - - - - - - - - - - - - MODULE- - - - - - - - - - - - - 19A134461P3 Microphone cartridge: 200-850 ohms impedance at 1 kHz, 1.5-10 VDC;...
  • Page 14 MECHANICAL PARTS BREAKDOWN LBI-38558 REAR COVER ASSEMBLY 19D901087G5 2 WATT 19D901087G6 4 WATT ISSUE 2 SYMBOL PART NO. DESCRIPTION - - - - - - - - - - - - - - PLUGS - - - - - - - - - - - - Part of mechanical assembly.

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