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Ericsson DUAL FORMAT MDX LBI-38848B, Maintenance Manual

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Ericsson DUAL FORMAT MDX LBI-38848B Maintenance Manual Download Page 10

INTERCONNECTION DIAGRAM

(19D904133, Sh. 1, Rev. 3)

LBI-38848

9

Summary of Contents for DUAL FORMAT MDX LBI-38848B

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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

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

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

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