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Maintenance Manual

 LBI-38848B

DUAL FORMAT MDX

806 - 870 MHz MOBILE

TABLE OF CONTENTS

RF BOARD  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . LBI-38849
SYSTEM BOARD  .  .  .  .  .  .  .  .  .  .  .  .  . LBI-38842
AUDIO/LOGIC BOARD  .  .  .  .  .  .  .  .  .  . LBI-38843
AUDIO AMPLIFIER BOARD  .  .  .  .  .  .  . LBI-38844
FRONT CAP ASSEMBLY  .  .  .  .  .  .  .  .  . LBI-38850
PA BOARD  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . LBI-38302
SERVICE SECTION  .  .  .  .  .  .  .  .  .  .  .  . LBI-38851

DUAL FORMAT MDX

 RADIO ASSEMBLY

ISSUE 1

PARTS LIST

ericssonz

Ericsson Inc.
Private Radio Systems
Mountain View Road
Lynchburg, Virginia 24502
1-800-528-7711 (Outside USA, 804-528-7711)

Printed in U.S.A.

SYMBOL

 PART NUMBER   

 DESCRIPTION

         

APPLICATION ASSEMBLY

         

19D904183

  

— — — —  ASSEMBLIES  — — — 

A1 

19D902123G22  

RF BOARD

A3 

19D901891G2   

SYSTEM BOARD

A4 

19D904025G2    

AUDIO AMPLIFIER BOARD

A5 

19D903963G1    

AUDIO/LOGIC BOARD

   

19C851822G1   

PA BOARD

          

— — — — — 

KITS  — — — — — 

   

344A4253G1     

Hardware Kit (No. 1)

   

344A4255G7     

Hardware Kit (No. 2)

          

— — — — —  CABLES  — — — — 

   

19A705301P6    

Cable, Antenna

   

19B801467P1    

Cable, J705 to J151

   

19B801467P2    

Cable, J5 to J105

   

19B801454P36   

Cable, RX to J104

   

19A705235P3    

Cable, Ribbon, J901 on Audio Amplifier

         

to J902 on System Board

   

19B801454P38   

Cable, Antenna to J7

   

19B801454P37   

Cable, TX to J101

   

19B802397P1   

Cable, Handset

         

— — —  MISCELLANEOUS 

— — 

   

19D904027P1    

Casting

   

19C337683G2   

Bracket

   

19D904185G1    

Cover, Bottom

   

19D904186G1    

Cover, Top

   

19D904187G1    

Panel, Front

   

19B801358P18   

Cable, 9 Foot, Power

   

19B235310P10   

Nameplate, Combination

*

COMPONENTS, ADDED, DELETED OR CHANGED BY PRODUCTION CHANGES

Содержание DUAL FORMAT MDX LBI-38848B

Страница 1: ...02123G22 RF BOARD A3 19D901891G2 SYSTEM BOARD A4 19D904025G2 AUDIO AMPLIFIER BOARD A5 19D903963G1 AUDIO LOGIC BOARD 19C851822G1 PA BOARD KITS 344A4253G1 Hardware Kit No 1 344A4255G7 Hardware Kit No 2...

Страница 2: ...ducts manufactured and sold by Ericsson Inc NOTICE Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier Any repairs alterations or s...

Страница 3: ...elch functions are ac complished on the Audio Board POWER AMPLIFIER BOARD The PA board 19C851822G1 amplifies the RF board output then connects it back to the RF board where it is coupled through a PIN...

Страница 4: ...ovides a means of restricting calls to specific radios through the use of a Continuous Tone Coded Squelch System CTCSS or a Continuous Digital Coded Squelch System CDCSS Tone frequencies range from 67...

Страница 5: ...on the transmitting mobile sends a high speed data burst to indicate that the user has unkeyed causing all listening mobiles to switch back to the control channel CONVENTIONAL MODE In conventional mod...

Страница 6: ...dio reverts to Idle when the user disconnects or with the loss of received Busy Tone from the repeater This normally occurs when the repeater shuts down after communication is completed Busy Tone A Vo...

Страница 7: ...ll is being directed to them If the PTT is unkeyed while in the queue the radio autokeys automat ically keys Push To Talk when a chan nel becomes available see AUTOKEY AUTOKEY When the PTT is keyed to...

Страница 8: ...ASSEMBLY DIAGRAM 19D904183 Sh 1 Rev 6 LBI 38848 7...

Страница 9: ...ASSEMBLY DIAGRAM 19D904183 Sh 2 Rev 6 LBI 38848 8...

Страница 10: ...INTERCONNECTION DIAGRAM 19D904133 Sh 1 Rev 3 LBI 38848 9...

Страница 11: ...INTERCONNECTION DIAGRAM 19D904133 Sh 2 Rev 2 LBI 38848 10...

Страница 12: ...INTERCONNECTION DIAGRAM 19D904133 Sh 3 Rev 2 LBI 38848 11...

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