Ericsson MDX LBI-39015 Maintenance Manual Download | Manualshive

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INTERCONNECTION DIAGRAM

MDX VHF Mobile Radio

(188D5198, Sh. 4, Rev. 0)

LBI-39015

LBI-39015

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Summary of Contents for MDX LBI-39015

Page 1: ...IO Printed in U S A TABLE OF CONTENTS RF BOARD LBI 39019 SYSTEM BOARD LBI 38842 AUDIO LOGIC BOARD LBI 39016 AUDIO AMPLIFIER BOARD LBI 38844 FRONT CAP ASSEMBLY LBI 38850 PA BOARD LBI 31921 SERVICE SECTION LBI 39020 Maintenance Manual LBI 39015 ...

Page 2: ...n Receiver 13 8 Vdc Off 0 01 Amperes Maximum Squelched 0 75 Amperes Maximum Unsquelched 3 5 Amperes Maximum at 10 Watts audio External Speaker Transmitter 13 8 Vdc 10 5 Amperes Maximum at 40 Watts RF Channel Spacing 25 30 kHz 6 25 or 5 kHz resolution Frequency Stability 2 5 PPM 0 00025 Temperature Range 30 C to 60 C 22 F to 140 F Dimensions H X W X D Less Accessories Height 5 3 cm 2 1 inches Width...

Page 3: ...10C Mil 810D Mil 810E High Temperature 501 1 Proc 2 501 2 Proc 2 501 3 Proc 2 Low Temperature 502 1 Proc 2 502 2 Proc 2 502 3 Proc 2 Low Pressure 500 1 Proc 1 500 2 Proc 1 500 3 Proc 1 2 Solar Radiation 505 1 Proc 1 505 2 Proc 1 505 3 Proc 1 Temperature Shock 503 1 Proc 2 503 2 Proc 1 503 3 Proc 1 Vibration 514 2 C8 P1 514 3 Proc 8 514 4 C8 P1 Continued Continued STANDARD METHODS PROCEDURES Mechan...

Page 4: ... Audio Logic Board provides all audio and digital proc essing of the receive and transmit audio for digital processing by the Logic Board This board also contains audio filtering conventional analog tone processing and the receiver squelch The Audio Logic Board controls the operation of the radio and digitally processes the receiver and transmit audio The board contains a microprocessor and associ...

Page 5: ...ular ra dio system Most features described in these operating instructions can be enabled or disabled through programming Both of these important factors must be considered when ad dressing the following instructions USER INTERFACE Operating controls are located on the radio front panel and microphone The Front panel Light Emitting Diode LED display pro vides radio status and communication control...

Page 6: ...om the scan list 5 Repeat preceding steps 2 through 4 for each chan nel to be removed from the scan list REVIEWING THE SCAN LIST 1 Confirm that the radio is turned on If not press the POWER switch 2 If the SCAN indicator is lit press and release the SCAN switch to disable the scan function 3 Select each channel one at a time using the CHANNEL UP or DOWN switch and confirm channels included on the ...

Page 7: ...hich would cause big gaps in the receive audio and allows time to respond to a received call The hang time also prevents the radio from immediately leaving the channel and resuming scan when the PTT is re leased to allow time for a return call The scan hang time is normally 2 seconds in length and PC pro grammable from 0 3 to 5 seconds on 0 1 seconds steps If no other channel activity occurs durin...

Page 8: ...econd otherwise If there is only a Priority 1 P1 channel then it is sampled every 2 5 seconds if it has Channel Guard and carrier is detected and every 500 millisec onds otherwise If there are P1 and P2 Priority channels the sample rate will vary In order to show the various scan conditions the following conditions are used CONDITION 1 P1 and P2 have Channel Guard Programmed a No carriers detected...

Page 9: ... 25 GAP 1 0 SEC 300 0 TONE B GROUP CALL FORMAT 1 0 SEC 20 TONE A 200 MS 25 GAP 1 0 SEC 300 0 TONE D SUPER GROUP CALL FORMAT 1 0 SEC 20 TONE C 200 MS 25 GAP 1 0 SEC 300 0 TONE D For example assume the paging number to be 123 The first digit of the paging number is a 1 Look in Table 3 and read down the column labeled 100 s Digits to a 1 Read horizontally across to the column labeled 10 s Digit The t...

Page 10: ...mat In Group Call application the Tone Group is determined by table 7 while the frequency is determined by Table 6 Refer to the following examples EXAMPLE 1 Group Call Code 07 also code 27 and 37 The digit 0 in Table 7 shows the Tone B is in Tone Group 2 TG2 along with 20 to 29 and 30 to 39 Tone number 7 in Tone Group 2 is 832 5 Hz See Table 6 EXAMPLE 2 Group Call Code 98 also code 48 and 88 The d...

Page 11: ...174 MHz RF Board 344A2456G1 Hardware Kit No 4 136 153 MHz PA Board 344A2456G2 Hardware Kit No 4 150 174 MHz PA Board CABLES 19A705301P6 Cable Antenna 19A704884P3 Cable J1 to J103 19B704884P4 Cable J2 to J102 19B801467P1 Cable J3 to J705 to J704 19A705235P3 Cable Ribbon J901 on Audio Amplifier to J902 on System Board 19B801454P38 Cable Antenna to J7 19B801454P37 Cable TX to J101 19B802397P1 Cable H...

Page 12: ...ASSEMBLY DIAGRAM MDX VHF Mobile Radio 19D904183 Sh 5 Rev 4 LBI 39015 LBI 39015 11 ...

Page 13: ...ASSEMBLY DIAGRAM MDX VHF Mobile Radio 19D904183 Sh 7 Rev 1 LBI 39015 LBI 39015 12 ...

Page 14: ...INTERCONNECTION DIAGRAM MDX VHF Mobile Radio 188D5198 Sh 1 Rev 0 LBI 39015 LBI 39015 13 ...

Page 15: ...INTERCONNECTION DIAGRAM MDX VHF Mobile Radio 188D5198 Sh 3 Rev 0 LBI 39015 LBI 39015 14 ...

Page 16: ...INTERCONNECTION DIAGRAM MDX VHF Mobile Radio 188D5198 Sh 4 Rev 0 LBI 39015 LBI 39015 15 ...

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