Ericsson MASTR II Maintenance Manual
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Ericsson MASTR II Maintenance Manual

Ericsson MASTR II Maintenance Manual

Auxiliary receiver with antenna matching units
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LBI-30766L
Mobile Communications
MASTR
®
II
AUXILIARY RECEIVER
19D417546G7 & G8
& ANTENNA MATCHING
UNITS
19C321150G1-G2
Printed in U.S.A
Maintenance Manual

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Summary of Contents for Ericsson MASTR II

  • Page 1 LBI-30766L Mobile Communications MASTR ® AUXILIARY RECEIVER 19D417546G7 & G8 & ANTENNA MATCHING UNITS 19C321150G1-G2 Printed in U.S.A Maintenance Manual...

  • Page 2: Table Of Contents

    LBI-30766 TABLE OF CONTENTS Page SPECIFICATIONS ........... . . 1 NOMENCLATURE CHART .

  • Page 3: Nomenclature Chart

    The MASTR® II Station Auxiliary Receivers are available OFF switch is provided on the regulator board. Another LED for mounting in MASTR II Base Stations or in MASTR II on the front panel indicates carrier activity. The receiver chas- Multiple Receiver Stations. The Auxiliary Receiver consists of sis swings out for servicing.

  • Page 4: Circuit Analysis

    Antenna Jack J2402. the oscillator frequency to 1000 Hz, and adjust the level In MASTR II remote applications, the VOL/SQ HI is applied to the base of Q801, causing Q801 to conduct. The to produce the same level recorded at the voting selec- coupled through the LINE DRIVER circuits to the remote voltage at pin 3 of U801 is the regulated 10-volts output.

  • Page 5: Channel Guard Filter 19C320627G1

    MASTR II Base Station Auxiliary Receiver applications. 3000 Hz, 3000 Hz referenced to the 1000 Hz level. Gain Options 9703 and 9704 are used with MASTR II Multiple Re- The Channel Guard filter attenuates frequencies below The Voting Tone Board is used to provide tone signaling control R12 is adjusted at the factory and should require no ceiver Stations.

  • Page 6: Auxiliary Receiver Chassis 19D417546G7

    LBI-30766 OUTLINE DIAGRAM AUXILIARY RECEIVER CHASSIS LO-BAND, HI-BAND & UHF 19D417546G7...

  • Page 7: Auxiliary Receiver Chassis 19D417546G8

    LBI-30766 OUTLINE DIAGRAM 800 MHz AUXILIARY RECEIVER CHASSIS 19D417546G8...

  • Page 8: Tone Notch Filter/Line Response Compensator 19C328328G1

    LBI-30766 OUTLINE DIAGRAM TONE NOTCH FILTER/LINE RESPONSE CHANNEL GUARD FILTER 19C320627G1 COMPENSATOR 19C328328G1-G3 (19C328331, Rev. 0) (19B232614, Sh. 1, Rev. 0) (19C321338, Rev. 1) (19C320625, Sh. 2 , Rev. 1) CHANNEL GUARD & TONE NOTCH FILTERS 19C320627G1 19C328328G1-G3...

  • Page 9: System Board 19D429764G1

    LBI-30766 OUTLINE DIAGRAM AUXILIARY RECEIVER SYSTEM BOARD 19D429764G1 (19D429765, Rev. 2) (19B232874, Sh. 1, Rev. 2) AUXILIARY RECEIVER SYSTEM BOARD 19D429764G1...

  • Page 10: Squelch Operated Relay 19C320913G1

    OUTLINE DIAGRAM LBI-30766 AUXILIARY RECEIVER SOR BOARD 19C320913G1 10-VOLT REGULATOR 19C320918G1 (19C321792, Rev. 4) (19B226221, Sh. 1 & 2, Rev. 1) (19C321796, Rev. 1) (19A130059, Sh. 1 & 2, Rev. 0) AUXILIARY RECEIVER & 10-VOLT REGULATOR BOARDS 19C320913G1 19C320918G1...

  • Page 11: Antenna Matching Unit 19C321150G1

    LBI-30766 OUTLINE DIAGRAM ANTENNA MATCHING UNITS 19C321150G1 & G2 POWER SUPPLY 19C311855G1 ANTENNA MATCHING UNITS AND POWER SUPPLY 19C321150G1 & G2 19C311855G1 (19C321706, Rev. 0) (19C311855, Rev. 5)

  • Page 12: Channel Guard Filter 19C320627G1

    LBI-30766 SCHEMATIC DIAGRAM CHANNEL GUARD FILTER AND POWER SUPPLY TONE NOTCH FILTER 19C320627G1 19C311855G1 19C328328G3 (19C320628, Rev. 0) (19B216280, Rev. 5) (19C328343, Rev. 1)

  • Page 13: Tone Notch Filter/Line Response Compensator 19C328328G1

    LBI-30766 SCHEMATIC DIAGRAM LINE RESPONSE COMPENSATOR 19C328328G1 (19D429483, Rev. 1)

  • Page 14: Line Response Compensator 19C328328G2

    LBI-30766 SCHEMATIC DIAGRAM LINE RESPONSE COMPENSATOR 19C328328G2 (19D429481, Rev. 2)

  • Page 15: Squelch Operated Relay 19C320913G1

    LBI-30766 SCHEMATIC DIAGRAM SQUELCH OPERATED RELAY ANTENNA MATCHING UNITS 19C321150G1 & G2 19C320913G1 (19C320915, Rev. 3) (19B226529, Rev. 1)

  • Page 16: Parts Lists & Production Changes

    LBI-30766 PARTS LIST...
  • Page 17 PARTS LIST LBI-30766...
  • Page 18 LBI-30766 PARTS LIST...
  • Page 19 PARTS LIST LBI-30766...
  • Page 20 LBI-30766 PARTS LIST...
  • Page 21 PARTS LIST LBI-30766...

  • Page 22: Auxiliary Receiver 19D417546G7 & G8

    SCHEMATIC DIAGRAM LBI-30766 NOTES: 1. JUMPER FROM H1 TO TO H2 NOT PRESENT WHEN THERE IS NO LOAD, OR SPEAKER CONNECTED TO THE SPEAKER OUTPUT LEADS. (J2401-9,10). 2. WHEN TONE FILTER PL19C328328G1,3 IS PRE- SENT (IN TONE CONTROL SYSTEMS) R937 IS RE- MOVED.

  • Page 23: Tone Notch Filter/Line Response Compensator

    LBI-30766 INSTALLATION INSTRUCTIONS TONE NOTCH FILTER/LINE RESPONSE COMPENSATOR 19C328328G1-G3 (19D417634, Sh. 3, Rev. 0)

  • Page 24: Auxiliary Receiver And Antenna Matching Unit

    INSTALLATION INSTRUCTIONS LBI-30766 AUXILIARY RECEIVER & ANTENNA MATCHING UNIT (19D417615, Sh. 1, Rev. 5)
  • Page 25 LBI-30766 INSTALLATION INSTRUCTIONS AUXILIARY RECEIVER & ANTENNA MATCHING UNIT (19D417615, Sh. 2, Rev. 8)

  • Page 26: Auxiliary Receiver Overlay Harness

    INTERCONNECTION DIAGRAM LBI-30766 AUXILIARY RECEIVER OVERLAY HARNESS 19B226307G1 (19D417611, Sh. 1, Rev. 12)

  • Page 27: Auxiliary Receiver Overlay Harness (Eacom)

    LBI-30766 INTERCONNECTION DIAGRAM AUXILIARY RECEIVER OVERLAY HARNESS (EACOM) 19B226307G2 (19D424989, Rev. 3)

  • Page 28: Auxiliary Receiver Overlay Harness With Cg Monitor

    INTERCONNECTION DIAGRAM LBI-30766 AUXILIARY RECEIVER OVERLAY HARNESS WITH CHANNEL GUARD MONITOR...

This manual is also suitable for:

19d417546g719d417546g819c321150g119c321150g2

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