E.F. Johnson Company 751 series User Manual Download

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TABLE OF CONTENTS (CONT’D)

Revised July 1999
Part No. 001-7500-002

LIST OF FIGURES

1-1

Option Unit Installation . . . . . . . . . . . . . . . . . . . 1-3

1-2

Two-Tone Decoder Adjustment Points . . . . . . . 1-4

1-3

Chassis Removal . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

1-4

Main Unit Removal From Chassis . . . . . . . . . . . 1-6

3-1

Programming Setup . . . . . . . . . . . . . . . . . . . . . . 3-1

3-2

Memory Channel Screen (PMR Models) . . . . . 3-15

4-1

Second IF and Demodulator Circuits . . . . . . . . . 4-2

4-2

APC Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4-3

PLL Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

5-1

Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-2

Screen Display Example . . . . . . . . . . . . . . . . . . . 5-2

5-3

VHF Adjustment Points . . . . . . . . . . . . . . . . . . . 5-4

5-4

UHF PLL Adjustment Points . . . . . . . . . . . . . . . 5-7

5-5

UHF Adjustment Points . . . . . . . . . . . . . . . . . . . 5-9

7-1

7510 (VHF) Block Diagram . . . . . . . . . . . . . . . . 7-2

7-2

7540 (UHF) Block Diagram . . . . . . . . . . . . . . . . 7-3

LIST OF TABLES

1-1

75xx Accessories. . . . . . . . . . . . . . . . . . . . . . . . . 1-2

3-1

Memory Channel Screen Description

(LMR Models) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3-2

Key and Display Assign Screen Description . . . 3-6

3-3

DTMF Autodial Screen Description . . . . . . . . . . 3-9

3-4

Continuous Tone Screen Description . . . . . . . . . 3-9

3-5

Scan Function Screen Description . . . . . . . . . . 3-10

3-6

2-Tone Code Channel Screen Description . . . . 3-11

3-7

Common Screen Description . . . . . . . . . . . . . . 3-12

3-8

Expert Screen Description. . . . . . . . . . . . . . . . . 3-13

5-1

Test Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

6-1

Transistor Information. . . . . . . . . . . . . . . . . . . . . 7-1

6-2

Diode Information . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Summary of Contents for 751 series

Page 1: ...oducts systems and services worldwide E F Johnson produces equipment for land mobile radio and mobiletelephone services which include business industrial government public safety and personal users Viking Head EFJohnson logo and Call Guard are registered trademarks of the E F Johnson Company Smartrunk II is a trademark of Smartrunk Systems Inc All other company and or product names used in this ma...

Page 2: ...sting Volume 2 3 2 4 BASIC OPERATION 2 3 Receiving a Call 2 3 Transmitting a Call 2 3 Low Battery Indication 2 3 Time Out Timer 2 3 Selective Calling 2 3 2 5 PROGRAMMABLE FUNCTIONS 2 4 General 2 4 Keypad Lock 2 4 Priority Channel 2 4 Scan 2 4 Key Beep 2 4 Monitor 2 4 Talk Around 2 5 DTMF Transmission 2 5 DTMF Redial 2 5 High Low Power Output 2 5 Emergency Operation 2 5 Display Lighting 2 5 2 6 BAT...

Page 3: ...TS VHF MODELS 5 4 Reference Frequency 5 4 Output Power Adjust 5 5 FM Deviation Adjust 5 5 DTCS Waveform Adjust 5 5 5 5 RECEIVER ADJUSTMENTS VHF MODELS 5 5 Bandpass Filter Adjust 5 5 Squelch Adjust 5 6 UHF MODELS 5 6 PLL ADJUSTMENT UHF MODELS 5 7 5 7 TRANSMITTER ADJUSTMENTS UHF MODELS 5 7 Reference Frequency 5 7 Output Power Adjust 5 8 FM Deviation Adjust 5 8 DTCS Waveform Adjust 5 8 5 8 RECEIVER A...

Page 4: ...5 3 VHF Adjustment Points 5 4 5 4 UHF PLL Adjustment Points 5 7 5 5 UHF Adjustment Points 5 9 7 1 7510 VHF Block Diagram 7 2 7 2 7540 UHF Block Diagram 7 3 LIST OF TABLES 1 1 75xx Accessories 1 2 3 1 Memory Channel Screen Description LMR Models 3 4 3 2 Key and Display Assign Screen Description 3 6 3 3 DTMF Autodial Screen Description 3 9 3 4 Continuous Tone Screen Description 3 9 3 5 Scan Function...

Page 5: ...program ming software see Table 1 1 Part of the alignment procedure is also performed using this same hardware setup and special Adjust software included with the programming software see Section 5 1 3 PART NUMBER BREAKDOWN The following is a breakdown of the part number used to identify this transceiver 1 4 TRANSCEIVER IDENTIFICATION The transceiver identification number is printed on a label tha...

Page 6: ...nclude all information that may be helpful in solving your problem The mailing address is as follows E F Johnson Company Customer Service Department 299 Johnson Avenue P O Box 1249 Waseca MN 56093 0514 Table 1 1 75xx Accessories Accessory Part No Battery pack 1050 mAH 9 6V 587 7500 105 Battery case for alkaline batteries 587 7500 120 Leather case w D swivel for std model 585 7500 124 Leather case ...

Page 7: ... Return Authorization RA numbers are not necessary unless you have been given one by the Field Service Department RA numbers are required for exchange units or if the Field Service Department wants to be aware of a specific problem If you have been given an RA number reference this number on the Factory Repair Request Form sent with the unit The repair lab will then contact the Field Service Depar...

Page 8: ... decoder will be used see Table 3 1 Screen Menu Select Key Display Assign and program a Monitor switch so that the decoder can be re activated when the call is complete see Table 3 2 1 12 2 SETTING TONE FREQUENCIES 1 Connect an RF signal generator to the antenna jack Set it to the frequency of a channel programmed for a two tone decoder Set the generator output level for 1000 µV 2 Set an audio gen...

Page 9: ... the channel see Figure 3 2 NOTE If performing the deviation adjustment in the next section the long tone must be turned on in RPT STN ID on the Memory Channel screen Key Display Assign and program Tx Code and Call switches for use in transmitting 5 tone codes 1 13 2 SETTING 5 TONE DEVIATION The only adjustment on the 5 tone module is a potentiometer for setting the transmit tone deviation This co...

Page 10: ...pound carefully apply moderate heat to the nut using a soldering iron or similar heat source 2 Pull the chassis out in direction of arrow 3 Unplug J6 to separate the chassis from the front panel 1 14 2 REMOVING MAIN UNIT FROM CHASSIS Refer to Figure 1 4 and proceed as follows 1 Remove the sealing rubber around the main unit 2 Unsolder tabs located at D Figure 1 3 Chassis Removal 3 Unscrew nut E tw...

Page 11: ...ich means it can also be used to program earlier A and B model transceivers New Features Additional banks can now be programmed In addi tion to 2 banks x 16 channels 4 banks x 8 channels or 2 banks of 20 channels 12 channels can be programmed The operation of several features has been changed to improve performance Support has been added for an optional scrambler and output port However those part...

Page 12: ...at save mode 225 mA maximum receive 500 mW audio output 1 0 A maximum transmit low power 2 0 A maximum transmit high power Battery Life 1050 mAH battery Low power w o battery saver 9 3 hours TIA 5 5 90 High power w battery saver 9 6 hours High power w o battery saver 7 3 hours FCC Compliance Parts 15 and 90 RECEIVER Sensitivity 12 dB SINAD 0 25 µV Selectivity 70 dB at 25 kHz 60 dB at 12 5 kHz Spur...

Page 13: ...bility optional l VHF and UHF models available l Up to 5 watts VHF or 4 watts UHF for greater operating range l Up to 9 6 hours of battery life with standard 1050 mAH battery pack l Priority and normal scan to ensure important calls are not missed 2 2 CONTROLS AND DISPLAY On Off Volume Control Turns power on and off and sets the volume level To adjust the volume for a com fortable listening level ...

Page 14: ...6 2 3 2 ANTENNA The included antenna is screwed into the trans ceiver antenna jack as shown below 2 3 3 BELT CLIP The belt clip is attached as shown below The belt clip is removed as shown below 2 3 4 TURNING POWER ON To turn power on rotate the top panel on off volume control clockwise To turn it off rotate it counterclockwise to the detent When power is turned on a power up alert tone may sound ...

Page 15: ...itch as soon as your message is complete so that a response can be received 2 4 3 LOW BATTERY INDICATION When a low battery condition is detected is displayed continuously The battery will require recharging soon When battery capacity is nearing the minimum level needed to operate the transceiver begins flashing 2 4 4 TIME OUT TIMER This function disables the transmitter if it is keyed continuousl...

Page 16: ...e Keypad Lock function The keypad is locked when the key icon is displayed 2 5 3 PRIORITY CHANNEL This function is used to quickly select a prepro grammed priority channel When the switch pro grammed for this function is pressed PRIO is briefly displayed and the priority channel is automati cally selected 2 5 4 SCAN The scan feature monitors a preprogrammed group of channels When a signal is detec...

Page 17: ...L This function allows the last used DTMF code to be retransmitted by simply pressing a key To activate this feature press the switch programmed for the DTMF Redial function If no code has been transmit ted since power was turned on this feature is not available 2 5 10 HIGH LOW POWER OUTPUT This function selects high or low power output on the current channel To toggle between high and low power p...

Page 18: ...stall eight AA size alkaline or nickel cad mium batteries as shown in the following illustration BATTERY CASE CAUTIONS l If using nickel cadmium batteries make sure all cells are the same brand type and capacity Never mix old and new cells Failure to observe these pre cautions may cause a fire hazard or transceiver damage l If using alkaline or other dry cell batteries NEVER connect DC power to th...

Page 19: ...persists the charger may be defective 2 6 6 USING MULTI UNIT CHARGER The multi unit charger is shown in the following illustration Each charger slot functions like the desk top charger described in the preceding section There fore the Caution charge time and indicator opera tion in that section also apply when this charger is used As indicated in Table 1 1 the power supply is not included with the...

Page 20: ...e used only for charging purposes Do not attempt to operate the transceiver with a charger connected to this jack if a battery is not attached l Charging continues even after the battery is fully charged Therefore do not charge a battery for extended periods because overcharging will result 2 6 9 REPLACEMENT BATTERY PACK Replacement Battery Pack Part No 587 7500 105 is the same pack that was inclu...

Page 21: ...ed to connect the computer to the transceiver This cable has a female DB9 connector which plugs into the serial port of the computer In this connector is a level converter circuit which converts the RS 232 levels of the computer to the logic levels required by the transceiver The other end of the cable plugs into the external speaker jack of the transceiver which also serves as the programming jac...

Page 22: ...ogram is not installed on a hard drive insert the program ming disk in drive A 2 Make the directory of the program the current direc tory Then start the program by typing RP7500 Enter 3 The Memory Channel screen described in Section 3 4 3 is then displayed Set or modify the data as desired Make sure to scroll right using the key so the right most screen parameters can be programmed 3 3 SPECIAL KEY...

Page 23: ... location Continuous Tone Displays the screen shown in Table 3 4 which programs nine user selectable Call Guard CTCSS tones Scan Function Displays the screen shown in Table 3 5 which programs various scan parameters 2 Tone Code Channel Displays the screen shown in Table 3 6 which programs transceiver operation with a 2 tone option The optional 2 Tone Decoder Kit Part No 585 7500 025 is required to...

Page 24: ...emory Channel and DTMF Autodial screens Refer to Section 3 5 for more information on PMR models 3 4 7 SETUP MENU Display Type Select the color or monochrome 1 or 2 display modes RS 232C Selects the computer serial port being used to connect the computer to the transceiver Table 3 1 Memory Channel Screen Description LMR Models Bank Select Up to 32 channels can be programmed arranged as 1 2 or 4 ban...

Page 25: ...e burst can be set by the CTCSS Reverse Burst parameter on the Common 1 Screen see Table 3 7 Digital codes must always be entered directly there is no table and tone frequencies can be entered directly Be sure to enter the tone decimal point or the number is interpreted as a digital code The N or I after a digital code indicates Normal or Inverted polarity To toggle the polarity press the spacebar...

Page 26: ...one Code Ch screen see Table 3 6 This requires the 2 tone option kit Log On Off Specifies how the DTMF ID code is transmitted when the PTT switch is pressed and released The DTMF code is specified on the Log ID line of the DTMF Autodial screen Table 3 3 The following conditions can be pro grammed OFF blank No ID code is transmitted Log In The ID code is transmitted when the PTT switch is pressed L...

Page 27: ...ogrammed from the keypad as follows User programming cannot be disabled DTMF Keypad Models 1 Press the DTMF key and then select the desired location d1 d5 by pressing the channel up down keys 2 Press and hold the DTMF key until the display indicates underscore characters _ _ _ 3 Enter the desired character using the 0 9 A D and keys Press the DTMF key again to accept the number Standard 7 key Mode...

Page 28: ...is changed or trans ceiver power is cycled Override The power output selected by the H L power switch overrides the channel programming The selected level is permanent changing the channel or cycling power does not affect the power output level Backlight Programs backlight control as follows OFF The backlight is totally disabled AUTO The backlight turns on for 5 seconds when any key except PTT is ...

Page 29: ...e 3 7 With PMR models 4 and 5 are displayed in place of Emergency and Log ID DTMF Timer Sets the time interval in seconds for each code emission and interval 1st Timer Sets the tone period in seconds for the first DTMF code corresponding to scanning or power saver function transceivers Timer Sets the tone period in seconds for the character same as E and same as F These codes can be used for contr...

Page 30: ...or each channel is displayed as it is scanned Allowable characters are the same as for Text shown in Table 3 1 PWR Save Enables or disables the power save mode while in scan If it is enabled scanning speed is reduced Stop Timer When Mode 2 or 3 above is programmed priority scanning this sets how often in seconds the priority channel is checked while receiving a message on some other channel Resume...

Page 31: ...gh beep repeated at selected intervals PiPi Repeat Two high beeps repeated at selected intervals Stun When a matched 2 tone is received the transceiver is set to the following condition that is programmed Off The transceiver can be used continuously Kill The transceiver cannot be used Reprogramming is required to re activate the transceiver Stun SORRY is displayed and the transceiver cannot be use...

Page 32: ...these timers to OFF input 0 Inactive Timer This feature is available with PMR European models only It sets the time in seconds to return to the Inaudible mode after the Audible mode is selected To turn off the inactive timer function do not assign Inactive in the channel screen TOT Timer Programs the time out timer time in seconds If the transmitter is keyed continuously for longer than this time ...

Page 33: ...s enabled Scrambler Type This function can be left in the default condition because the particular scrambler it controls is not available with this transceiver Scrambler Group Code This function can be left in the default condition because the particular scrambler it controls is not available with this transceiver Synch Capture The Synchronous Capture Mode is useful when communicating through a re...

Page 34: ...gnal must be received before the power saver function activates Two timers are set the 1st Timer sets the time that no signal must be received to enable the power saver and the 2nd Timer sets the time at which the long power saver function is enabled The 1st Timer must be programmed for a shorter time than the 2nd Timer for the power saver to function Allowable times are as follows 1st Timer 0 25 ...

Page 35: ...PROGRAMMING 3 15 Revised July 1999 Part No 001 7500 002 Figure 3 2 Memory Channel Screen PMR Models ...

Page 36: ...t go into the clone mode The programming of this parameter does not affect the ability to receive data Therefore it can be in either mode in the slave target transceiver Proceed as follows to program one transceiver with another 1 Turn on the master transceiver while holding down theUp Arrow and F4keys The displayshould then indicate CLonE and be ready to program another transceiver 2 Connect the ...

Page 37: ...receiving and good image rejection 4 1 3 FIRST MIXER AND FIRST IF CIRCUIT The first mixer converts the received signal to a fixed frequency that is the first IF signal A PLL out put frequency is used to perform this function By changing the PLL frequency only the desired fre quency will be passed through a crystal filter at the next stage of the first mixer The signals from the RF circuit are mixe...

Page 38: ...nt potentiometer R92 is connected in parallel to the active filter pin 8 to control the input noise level The active filter section amplifies noise compo nents The filtered signals are rectified by the noise detector section and converted to pulse type signals NOIS by the noise comparator section The NOIS signal is applied to CPU IC8 on pin 19 The CPU detects the receive signal strength from the n...

Page 39: ...r and power amplifier stages using current sensor R161 Differen tial amplifier Q9 detects the voltage difference of the current sensor input and output voltages then outputs control voltage to the APC circuit VHF only and the CPU IC8 pin 97 4 2 5 POWER DETECTOR UHF ONLY Power detector D2 detects the transmit power output level and converts it to a DC voltage The detected signal is applied to the A...

Page 40: ...eference frequency by the phase detector If the VCO frequency begins drifting the phase changes from that of the reference frequency The control voltage then changes to compensate for this frequency drift Part of the VCO signal is amplified by buffer amplifier Q4 and applied to the receive first mixer or transmit buffer amplifier circuit via T R switching diodes D3 and D4 4 4 POWER SUPPLY CIRCUITS...

Page 41: ...nput ports from key matrix 48 R5C Outputs R5 regulator control signal Low receive mode 49 S5C Outputs S5 regulator control signal Low Power is on 50 TXC Outputs T5 regulator control signal Low transmit mode 51 T5C Outputs T5 regulator control signal Low transmit mode 52 LIGHT Outputs LCD backlight control signal High Light on 53 AFON Outputs the control signal for the AF amplifier control circuit ...

Page 42: ...CIRCUIT DESCRIPTION 4 6 December 1997 Part No 001 7500 001 This page intentionally left blank ...

Page 43: ...er meter Measuring range 1 10 W Freq range 120 500 MHz Impedance 50 ohms SWR Less than 1 2 1 Frequency counter Freq range 0 1 500 MHz Freq accuracy 1 ppm or better Sensitivity 100 mV or better FM deviation meter Freq range DC 500 MHz Measuring range 0 to 5 kHz Digital multimeter Input impedance 10M V DC or better Audio generator Freq range 300 3000 Hz Output level 1 500 mV Attenuator Power atten 4...

Page 44: ...Hz Low 400 000 low power 400 000 high power 440 000 low power 440 000 high power Mid 415 000 low power 415 000 high power 455 000 low power 455 000 high power High 430 000 low power 470 000 low power These channels must also be programmed with a digital Call Guard DTCS code of 007N Table 5 1 and they must be programmed as regular channels using the programming software described in Section 3 There...

Page 45: ...lows A CD ADJ Enter A ADJ EEPROM filename ICF 1 Enter NOTE If using serial port 2 type 2 instead of 1 after ICF 5 When programming is successful the transceiver displays CL GOOD 5 2 PRELIMINARY SETUP To access the adjustment points in the procedure which follows remove either the large label covering the back of the chassis or the main unit PC board from the chassis Proceed as follows NOTE The onl...

Page 46: ...y the transmitter and adjust L11 see Figure 5 3 for a meter reading of 3 0 volt LB or 4 3 V HB NOTE LB refers to Low Band 136 150 MHz models and HB refers to High Band 146 174 MHz models 3 Unkey the transmitter and the meter reading in the receive mode should be 2 2 3 2 volts LB or 3 1 4 1 volts HB 5 4 TRANSMITTER ADJUSTMENTS VHF MODELS 5 4 1 REFERENCE FREQUENCY 1 Select the channel on the low end...

Page 47: ...for 1 kHz at a level of 150 mV 3 Monitor the transmit deviation with a communica tions monitor Set it as follows HPF Off LPF 20 kHz De Emphasis Off Detector P P 2 4 Key the transmitter and press the adjust keys PgUp PgDn or spacebar backspace to set the fol lowing maximum deviation Wideband 25 kHz Models 4 2 kHz Narrowband 12 5 kHz Models 2 1 kHz 5 4 4 DTCS WAVEFORM ADJUST NOTE If the reference fr...

Page 48: ...ssembled by removing the small adhesive backed label covering the access hole in the chassis Simply insert a sharp tool under the label and carefully peel it off A spare label is included with each transceiver Adjustment Procedure 1 Select the 143 000 MHz channel with LB models and the 150 000 MHz channel with HB models 2 Connect a SINAD meter with an 8 ohm load to the speaker SP jack 3 Connect an...

Page 49: ...igure 5 4 for a meter reading of 1 3 volt 3 Key the transmitter and adjust L405 for a meter reading of 1 3 volt 4 Select the channel on the high end of the band 430 000 or 470 000 MHz 5 Verify that the voltage at CP1 is 3 0 4 5 volts in both the receive and transmit modes 5 7 TRANSMITTER ADJUSTMENTS UHF MODELS 5 7 1 REFERENCE FREQUENCY 1 Select the channel on the low end of the band 400 000 or 440...

Page 50: ...een and select high power by pressing the front panel High Low power switch or selecting the high power channel LOW should not be displayed 9 Key the transmitter and use the adjust keys to set the power output for 4 0 watts Release the PTT switch 5 7 3 FM DEVIATION ADJUST 1 Select the channel on the low end of the band 400 000 or 440 000 MHz The MOD parameter on the screen must be 80 for this adju...

Page 51: ...7 dBm modulated with 1 kHz at the fol lowing deviation Wideband 25 kHz Models 3 5 kHz Narrowband 12 5 kHz Models 1 75 kHz 3 Adjust the filters automatically or manually as follows Automatic Adjustment Method 1 Adjusts all filters a Select BPF T1 on the screen and adjust for 0 Repeat for T2 T4 Reselect BPF T1 b Press the F9 key and all filters are automatically adjusted for peak levels Automatic Ad...

Page 52: ...l under the label and carefully peel it off A spare label is included with each transceiver Adjustment Procedure 1 Select the channel in the middle of the band 415 000 or 455 000 MHz 2 Connect a SINAD meter with an 8 ohm load to the speaker SP jack 3 Connect an RF signal generator to the antenna jack Set it to the channel frequency with an output mod ulated with 1 kHz at the following deviation Wi...

Page 53: ...22 3906 065 C 31 Ceramic C1608 CH 1H 050B T A 022 3906 610 C 32 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 33 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 34 Ceramic C1608 CH 1H 0R5B T A 022 3906 084 C 35 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 36 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 37 Ceramic C1608 CH 1H 020B T A 022 3906 086 136 150 MHz Ceramic C1608 CH 1H 010B T A 022 3906 085 146 1...

Page 54: ...7 C 104 Ceramic C1608 JB 1H 102K T A 022 3906 060 Ref No Description Part No C 105 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 106 Ceramic C1608 CH 1H 560J T A 022 3906 601 C 107 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 108 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 109 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 110 Ceramic C1608 CH 1H 090D T A Wideband models 022 3906 348 Ceramic C1608 CH 1H...

Page 55: ...906 060 C 187 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 189 Ceramic C1608 JB 1H 102K T A 022 3906 060 Ref No Description Part No C 190 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 193 Ceramic C1608 CH 1H 080D T A 022 3906 597 C 194 Ceramic C1608 CH 1H 120J T A 022 3906 066 C 195 Ceramic C1608 CH 1H 390J T A 022 3906 599 C 196 Ceramic C1608 JB 1H 471K T A 022 3906 059 C 197 Ceramic C1608 JB 1H 471...

Page 56: ...A 022 3906 598 146 174 MHz C 280 Ceramic C1608 CH 1H 240J T A 022 3901 411 C 281 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 282 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 283 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 284 Ceramic C1608 JB 1H 332K T A 022 3906 077 C 286 Ceramic C1608 JB 1H 222K T A 022 3906 061 C 287 Ceramic C1608 CH 1H 150J T A 022 3906 067 136 150 MHz Ref No Description Part N...

Page 57: ...n Part No COIL ELJRE 82NG F 022 3906 675 146 174 MHz L 15 COIL LQN 1A 47NJ04 022 3906 650 L 16 COIL LQN1H 54NK04 022 3906 676 L 17 COIL LQN1H 54NK04 022 3906 676 L 18 COIL LQN 1A 33NJ04 022 3906 647 L 19 COIL LQN 1A 33NJ04 022 3906 647 L 20 COIL MLF1608D R47K T 022 3906 662 L 21 COIL ELJRE 47NG F 022 3906 494 L 22 COIL LQN 1A 47NJ04 022 3906 650 L 23 COIL LQN 1A 39NJ04 022 3906 648 136 150 MHz COI...

Page 58: ...tor 472 V 4 7kohm 022 3906 160 R 18 Resistor 393 V 39kohm 022 3906 170 Ref No Description Part No R 19 Resistor 391 V 390ohm 022 3906 149 R 20 Resistor 683 V 68kohm 022 3906 173 R 21 Resistor 471 V 470ohm 022 3906 150 R 22 Resistor 683 V 68kohm 022 3906 173 R 23 Resistor 681 V 680ohm 022 3906 152 R 24 Resistor 221 V 220ohm 022 3906 288 R 25 Resistor 822 V 8 2kohm 022 3906 256 R 26 Resistor 822 V 8...

Page 59: ...on Part No R 117 Resistor 152 V 1 5kohm 022 3906 155 R 120 Resistor 683 V 68kohm 022 3906 173 R 121 Resistor 102 V 1kohm 022 3906 154 R 122 Resistor 272 V 2 7kohm 022 3906 158 R 123 Resistor 332 V 3 3kohm 022 3906 159 R 125 Resistor 273 V 27kohm 022 3906 168 R 126 Resistor 103 V 10kohm 022 3906 163 R 127 Resistor 330 V 33ohm 022 3906 387 R 128 Resistor 100 V 10ohm 022 3906 138 R 130 Resistor 104 V...

Page 60: ...R 222 Resistor 103 V 10kohm 022 3906 163 R 224 Resistor 333 V 33kohm 022 3906 169 R 224 Resistor 393 V 39kohm 022 3906 170 R 225 Resistor 104 V 100kohm 022 3906 175 R 226 Array Exb v8v 102jv 022 3906 700 R 227 Resistor 102 V 1kohm 022 3906 154 Ref No Description Part No R 228 Resistor 104 V 100kohm 022 3906 175 R 229 Resistor 683 V 68kohm 022 3906 173 R 230 Resistor 273 V 27kohm 022 3906 168 R 231...

Page 61: ...EY105R 022 3906 632 C 51 Ceramic C1608 CH 1H 100D T A 022 3906 598 C 52 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 53 Ceramic C1608 CH 1H 050B T A 022 3906 610 C 54 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 55 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 56 Ceramic C1608 JB 1C 104KT N 022 3906 614 C 57 Ceramic C1608 CH 1H 220J T A 022 3906 065 C 58 Ceramic C1608 CH 1H 101J T A 022 3906 072 C 59 ...

Page 62: ...2 3906 078 C 129 Tantalum ECST0JY156R 022 3906 635 C 131 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 132 Ceramic C1608 JB 1H 472K T A 022 3906 062 C 133 Ceramic C1608 JB 1C 104KT N 022 3906 614 C 134 Ceramic C1608 CH 1H 151J T A 022 3906 073 Wideband models Ceramic C1608 CH 1H 221J T A 022 3906 603 Narrrowband models C 135 Ceramic C1608 CH 1H 101J T A 022 3906 072 Wideband models Ceramic C1608 CH ...

Page 63: ...22 3906 614 C 218 Ceramic C1608 JB 1H 102K T A 022 3906 060 C 221 Ceramic C1608 JB 1C 104KT N 022 3906 614 C 222 Ceramic C1608 JB 1H 562K T A 022 3906 607 Ref No Description Part No C 223 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 224 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 225 Ceramic C1608 JB 1E 103K T A 022 3906 063 C 226 Ceramic C1608 JB 1H 822K T A 022 3901 410 C 227 Ceramic C1608 JB 1C ...

Page 64: ...B 1C 473K T A 022 3906 080 C 444 Ceramic C1608 JB 1H 102K T A 022 3906 060 Ref No Description Part No C 446 Ceramic C1608 CH 1H 470J T A 022 3906 600 C 447 Electrolytic ECEV0JV330SR 022 3906 616 C 448 Ceramic C1608 CH 1H 150J T A 022 3906 067 C 449 Ceramic C1608 CH 1H 470J T A 022 3906 600 C 450 Ceramic C1608 CH 1H 010B T A 022 3906 085 Wideband models Ceramic C1608 CH 1H 020B T A 022 3906 086 Nar...

Page 65: ...DS2 LED LNJ310M6URA 022 3906 637 DS3 LED LNJ310M6URA 022 3906 637 DS4 LED LNJ808R8ERA 022 3906 639 EP1 PCB B 4923G 2P 1923 1F N A EP2 LCD Contact SRCN 1922 sp n w 022 3906 735 Ref No Description Part No FI1 Xtal UM 5 46 35MHz FL 267 022 3906 587 Narrowband models Xtal UM 5 46 35MHz FL 271 022 3906 589 Wideband models FI2 Ceramic CFWM450E 022 3906 590 Wideband models Ceramic CFWM450G 022 3906 591 N...

Page 66: ... Q 6 Transistor 2SC5107 O TE85R 022 3906 566 Q 7 Transistor 2SC4226 T2 R25 022 3906 499 Q 8 Transistor 2SC4226 T2 R25 022 3906 499 Q 9 Transistor XP6401 TX 022 3906 575 Q 11 Transistor 2SC4081 T107 R 022 3901 343 Q 12 FET 3SK239XR TL 022 3906 325 Q 13 FET 3SK241 R TX 022 3906 571 Q 15 Transistor 2SB1132 T100 R 022 3906 318 Q 16 Transistor XP6501 TX AB 022 3906 573 Q 17 Transistor UN911H TX 022 390...

Page 67: ...hm 022 3906 143 R 82 Resistor 122 V 1 2Kohm 022 3906 390 Wideband models Resistor 222 V 2 2Kohm 022 3906 157 Narrowband models R 83 Resistor 331 V 330ohm 022 3906 389 R 84 Resistor 470 V 47ohm 022 3906 141 Ref No Description Part No R 85 Resistor 152 V 1 5Kohm 022 3906 155 R 86 Resistor 104 V 100Kohm 022 3906 175 Narrowband models Resistor 124 V 120Kohm 022 3906 176 Wideband models R 87 Resistor 1...

Page 68: ... 169 Resistor 103 V 10Kohm 022 3906 163 R 170 Resistor 103 V 10Kohm 022 3906 163 R 171 Resistor 473 V 47Kohm 022 3906 171 Ref No Description Part No R 172 Resistor 105 V 1Mohm 022 3906 184 R 174 Resistor 153 V 15Kohm 022 3906 165 R 176 Resistor 392 V 3 9Kohm 022 3906 391 R 178 Resistor 392 V 3 9Kohm 022 3906 391 R 181 Resistor 104 V 100Kohm 022 3906 175 R 182 Therm NTCCF2012 4AH 473KC T 022 3906 4...

Page 69: ... 163 R 436 Resistor 182 V 1 8Kohm 022 3906 156 R 437 Resistor 473 V 47Kohm 022 3906 171 R 438 Resistor 334 V 330Kohm 022 3906 180 R 439 Resistor 563 V 56Kohm 022 3906 172 R 440 Resistor 124 V 120Kohm 022 3906 176 R 441 Therm NTCCF2012 3NH 103KC T 022 3906 701 Ref No Description Part No R 442 Resistor 103 V 10Kohm 022 3906 163 R 443 Resistor 103 V 10Kohm 022 3906 163 R 444 Resistor 103 V 10Kohm 022...

Page 70: ...06 726 MP39 Sheet 2079 window sheet 022 3906 743 MP40 Sheet insulator board Ez 022 3906 738 7540 UHF CHASSIS PARTS MP1 Chassis 1922 Chassis 1 022 3906 703 MP2 Panel 2079 S Front Panel A Assy 022 3906 709 Panel 2079 T Front Panel A Assy 022 3906 710 MP4 Panel 1922 Contact Base 022 3906 705 MP5 Knob N261 022 3906 720 MP6 Key 2079 10 Key 022 3906 741 Key 2079 7 Key 022 3906 742 MP7 Cap 1922 mic cap 0...

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E.F. Johnson Company 751 series, User Manual

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