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MDX LBI-33055 Maintenance Manual

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Maintenance Manual
MDX™
UHF MOBILE RADIO
TABLE OF CONTENTS
RF BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-39017
SYSTEM BOARD . . . . . . . . . . . . . . . . . . . . . . . . LBI-38842
AUDIO/LOGIC BOARD . . . . . . . . . . . . . . . . . . . . . LBI-39016
AUDIO AMPLIFIER BOARD . . . . . . . . . . . . . . . . . . LBI-38844
FRONT CAP ASSEMBLY . . . . . . . . . . . . . . . . . . . . LBI-38850
PA BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-39051
SERVICE SECTION . . . . . . . . . . . . . . . . . . . . . . . LBI-39018
LBI-33055
LBI-38974
Ericsson Inc.
Private Radio Systems
Mountain View Road
Lynchburg, Virginia
1-800-528-7711 (Outside USA, 804-528-7711)
Printed in U.S.A.

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Summary of Contents for MDX LBI-33055

  • Page 1 LBI-33055 Maintenance Manual MDX™ UHF MOBILE RADIO TABLE OF CONTENTS RF BOARD ......LBI-39017 SYSTEM BOARD .
  • Page 2 LBI-33055 SPECIFICATIONS* TABLE OF CONTENTS GENERAL Page 13.8 Volts ±15% Operating Voltage SPECIFICATIONS* ...........

  • Page 3: Specifications

    LBI-33055 Continued Continued SPECIFICATIONS* ENVIRONMENTAL RECEIVER STANDARD METHODS PROCEDURES Frequency Range High Split Radio 485 - 490 MHz Mechanical Shock 516.2/Proc 1 516.3/Proc 1-6 516.4/Proc 1-6 Humidity 507.1 507.2 507.3 Sensitivity (12 dB SINAD) -116 dBm (maximum) Salt Fog 509.1/Proc 1 509.2/Proc 1...

  • Page 4: Accessories And Options

    OPTIONS VCO output drives both the transmitter exciter and the receiver on the board to drive a 4-ohm internal/external speaker. The UHF MDX™ Mobile Radio is a synthesized, wide mixer. band radio that uses integrated circuits and microcomputer The Front Cap Assembly also contains the display board...

  • Page 5: Radio Operation

    PC programmed to either revert to the SE- Scan Transmit Group: A complete set of operating instructions for the MDX If the SCAN indicator is lit, press and release the LECTED group or remain on the received group.

  • Page 6: Parts List

    PARTS LIST ASSEMBLY DIAGRAM LBI-33055 MDX™ ™ UHF MOBILE RADIO ASSEMBLY 19D904183P5 Issue 1 SYMBOL PART NO. DESCRIPTION ---------------------ASSEMBLIES-------------------- 188D5062G4 RF Board (470 - 512 MHz) 19D901891G3 System Board 19D904025G2 Audio Amplifier Board 19D903963G2 Audio/Logic Board 19D904792G3 Power Amplifier Board (470 - 512 MHz)
  • Page 7 LBI-33055 ASSEMBLY DIAGRAM MDX UHF Mobile Radio (19D904183, Sh. 5, Rev. 0)
  • Page 8 ASSEMBLY DIAGRAM LBI-33055 MDX UHF Mobile Radio (Made From 19D904183, Sh. 7, Rev. 12)

  • Page 9: Interconnection Diagram

    INTERCONNECTION DIAGRAM LBI-33055 MDX UHF Mobile Radio (188D5198, Sh. 1, Rev. 0)
  • Page 10 INTERCONNECTION DIAGRAM LBI-33055 MDX UHF Mobile Radio (188D5198, Sh. 3, Rev. 0)
  • Page 11 INTERCONNECTION DIAGRAM LBI-33055 MDX UHF Mobile Radio (188D5198, Sh. 4, Rev. 0)
  • Page 12 LBI-33055 This page intentionally left blank...

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