Ericsson MDR GE-MARC Maintenance Manual
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Ericsson MDR GE-MARC Maintenance Manual

Ericsson MDR GE-MARC Maintenance Manual

Mobile radio
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LBI-38952A
Mobile Communications
MDR™ GE-MARC
MOBILE RADIO
TABLE OF CONTENTS
DUPLEXER INTERFACE BOARD . . . . . . . . . . . . . . . . . . LBI-38700
RF BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-38841
SYSTEM BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-38842
LOGIC BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-38392
AUDIO BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-38391
AUDIO AMPLIFIER BOARD . . . . . . . . . . . . . . . . . . . . . LBI-38844
HANDSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-38698
SERVICE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-38953
Printed in U.S.A
Maintenance Manual

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Summary of Contents for Ericsson MDR GE-MARC

  • Page 1 LBI-38952A Mobile Communications MDR™ GE-MARC MOBILE RADIO TABLE OF CONTENTS DUPLEXER INTERFACE BOARD ....LBI-38700 RF BOARD ....... LBI-38841 SYSTEM BOARD .

  • Page 2: Table Of Contents

    Function (FCN) ............................. NUMERIC KEYPAD ........................... GLOSSARY OF SYSTEM TERMS .......................... 0-9 ................................. RADIO OPERATION ..............................Asterisk( ) ............................VISUAL INDICATORS ............................Pound (#)..............................ALPHANUMERIC STATUS INDICATORS..................... TELEPHONE EXTENDED FEATURES......................Busy................................Retrying................................. Wait................................Continued Copyright© June 1993, Ericsson GE Mobile Communications Inc.

  • Page 3: Specifications

    LBI-38952 LBI-38952 TABLE OF CONTENTS SPECIFICATIONS* (Continued) GENERAL Page 13.8 Volts ±20% Operating Voltage BASIC OPERATION ............................Battery Drain VOLUME ADJUSTMENT........................Receiver (13.8 Vdc) AREA SELECTION..........................0.01 Amperes (maximum) GROUP SELECTION ..........................Squelched 0.8 Amperes (maximum) CHANNEL ACTIVITY ..........................Unsquelched 3.5 Amperes (maximum at 10 Watts audio) PLACING A DISPATCH CALL.......................

  • Page 4: General Description

    GENERAL DESCRIPTION receiver squelch. 3.5 inch and 5.25 inch diskettes. The RF board includes the programmable frequency synthe- The Ericsson GE-MARC V•E MDR Mobile Radio is a LOGIC BOARD PC PROGRAMMED OPTIONS sizer, transmitter exciter, receiver front end and IF circuitry.

  • Page 5: Hook Switch Programming Option

    LBI-38952 LBI-38952 standard 3’ handset cable, Option PMCD1M (19B802397P1). Hook Switch Programming Option OPERATIONAL MODES SYSTEM DESCRIPTION In-line connector, Option PMCN1A (19A705839P1), must be used to mate the cables. It is recommended that Handset "Off Hook Call" originate and "On Hook Call" termi- The radio will always be in one of three operational modes: Extension Cable Kit, Option PMZM5V, be used in remote The GE-MARC V•E trunked mobile radio system permits...

  • Page 6: Idle Mode

    LBI-38952 LBI-38952 IDLE MODE WAIT MODE When the radio is in the Idle Mode, the audio is muted and When the user enters the Wait Mode, the display group is all channels programmed for call decode are sequentially checked to make sure it is a valid call-originate group. If it is not scanned for an incoming call.
  • Page 7 LBI-38952 LBI-38952 Figure 5 - Wait Mode Figure 6 - Ready Mode...

  • Page 8: Glossary Of System Terms

    LBI-38952 LBI-38952 Group/Individual Tones STATUS INDICATORS GLOSSARY OF SYSTEM TERMS AUDIBLE INDICATORS Group/Individual tones chosen from the 34 standard fre- quencies, follow the collect tone. In a two-tone call, the second Idle Mode No Service SELF CHECK TEST ALERT tone is sent for 450 milliseconds. In a four-tone call, the second, third, and fourth tones are sent for 90 milliseconds from the In the "standby"...

  • Page 9: Function (Fcn)

    LBI-38952 LBI-38952 5 (JKL) SIMPLEX Disables duplex, allows simplex I NVALID CAL L ORIG INATE ALERT Volume Up (VOLUP) Alphabet Keys ( A, B, C) operation. (Trunked mode only) The VOLUP key is located on the left side of the handset. The A, B, C keys are "Hotkeys"...

  • Page 10: Basic Operation

    LBI-38952 LBI-38952 be entered directly by entering the desired group number and If the call retry option was enabled during PC program- and the AREA and INDIVIDUAL decode when an INDIVID- BASIC OPERATION then pressing the (#) key. ming, [RETRYING] will appear in the display instead UAL call is received.

  • Page 11: Call Timer

    LBI-38952 LBI-38952 Call Timer Recalling Numbers Locking The MDR Mobile Radio DTMF Digit Length The user can recall numbers previously stored by follow- The call timer displays the length of the time the conver- The user may choose to lock the radio by pressing the FCN The user can change the duration of the DTMF tones by ing these steps: sation in progress, or most recent call, has taken.

  • Page 12: Digital Channel Guard Tones

    PARTS LIST LBI-38952 LBI-38952 TABLE 2 - DIGITAL CHANNEL GUARD CODES MDR MOBILE RADIO ASSEMBLY PRIM. EQUIV. PRIM. EQUIV. PRIM. EQUIV. SYMBOL PART NUMBER DESCRIPTION CODE CODE CODE CODE CODE CODE — — — — ASSEMBLIES — — — 340,766 174,270 427,510,762 19D902172G2...

  • Page 13: Assembly Diagram

    ASSEMBLY DIAGRAM LBI-38952 LBI-38952 MDR GE-MARC MOBILE RADIO SHEET 1 (Made from 19D904183, Sh. 4, Rev. 0)
  • Page 14 LBI-38952 ASSEMBLY DIAGRAM LBI-38952 MDR GE-MARC MOBILE RADIO SHEET 2 (Made from 19D904183, Sh. 3, Rev. 1)
  • Page 15 LBI-38952 ASSEMBLY DIAGRAM LBI-38952 MDR GE-MARC MOBILE RADIO SHEET 3 (Made from 19D904183, Sh. 6, Rev. 4)

  • Page 16: 800 Mhz Duplex Mobiles (System)

    INTERCONNECTION DIAGRAM LBI-38952 LBI-38952 800 MHz DUPLEX MOBILE (SYSTEM) (19D904786, Sh. 1, Rev. 1))

  • Page 17: Standard 800 Mhz Duplex Mobile

    INTERCONNECTION DIAGRAM LBI-38952 LBI-38952 STANDARD 800 MHz DUPLEX MOBILE (19D904786, Sh. 2, Rev. 0...

  • Page 18: 800 Mhz Duplex With Talk-Around

    INTERCONNECTION DIAGRAM LBI-38952 LBI-38952 800 MHz DUPLEX WITH TALK-AROUND (19D904786, Sh. 3, Rev. 0...

  • Page 19: 800 Mhz Duplex Mobile (Options)

    INTERCONNECTION DIAGRAM LBI-38952 LBI-38952 800 MHz DUPLEX MOBILE (OPTIONS) (19D904786, Sh. 4, Rev. 0)
  • Page 20 LBI-38952 LBI-38952 This page intentionally left blank...

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