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E.F. Johnson Company 7780 Series Preliminary Service Manual

Smartnet/smartzone/conventional 7.5 vdc, 1 and 3 watts 806-824 mhz transmit 851-870 mhz receive
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7780
778x (800 MHz)
SMARTNET™/SmartZone®/Conventional
7.5 VDC, 1 and 3 Watts
806-824 MHz Transmit
851-870 MHz Receive
Part No. 242-778x-50x
Series
SMARTNET™/SMARTZONE® PORTABLE
PRELIMINARY SERVICE
Full Keypad (15-Key) Model
MANUAL
Limited Keypad (3-Key) Model
First Printing
November 1999

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  • Page 1 PRELIMINARY SERVICE Series 7780 MANUAL SMARTNET™/SMARTZONE® PORTABLE 778x (800 MHz) SMARTNET™/SmartZone®/Conventional 7.5 VDC, 1 and 3 Watts 806-824 MHz Transmit 851-870 MHz Receive Part No. 242-778x-50x Full Keypad (15-Key) Model Limited Keypad (3-Key) Model First Printing November 1999...
  • Page 3 Viking Head/EFJohnson logo, Call Guard®, PCTrunk™, and PCTune™ are trademarks of the E.F. Johnson Company. SMARTNET™, SmartZone®, Call Alert™, Enhanced Private Conversation™, and Private Conversation II™ are trademarks of Motorola, Inc. All other company and/or product names used in this manual are trademarks and/or registered trade- marks of their respective manufacturer.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS GENERAL INFORMATION Keypad Lock ......2-4 Low Battery Indication ....2-5 Channel and Zone Selection .
  • Page 5 TABLE OF CONTENTS TABLE OF CONTENTS (CONT’D) SYNTHESIZER DESCRIPTION... 4-1 PCTrunk Software Installation ....3-1 Connecting RPI To Computer and Transceiver . 3-2 Introduction .
  • Page 6 TABLE OF CONTENTS TABLE OF CONTENTS (CONT’D) MODULATION BALANCE....6-4 LIST OF TABLES AUDIO DEVIATION..... .6-5 DATA DEVIATION.

  • Page 7: General Information

    GENERAL INFORMATION SECTION 1 GENERAL INFORMATION 1.1 SCOPE OF MANUAL models is also used to service these models. Refer to Section 1.10 for more information on the intrinsically This service manual contains operating, program- safe rating and additional requirements for servicing intrinsically safe models.

  • Page 8: Npspac Models

    GENERAL INFORMATION 1.3 PART NUMBER BREAKDOWN        [  Ã 1.2.5 NPSPAC MODELS 1.4 TRANSCEIVER IDENTIFICATION 1.2.6 PROGRAMMING 1.5 ACCESSORIES 1.2.7 TRANSCEIVER ALIGNMENT 1.6 FACTORY CUSTOMER SERVICE November 1999 Part No. 001-7780-500...

  • Page 9: Factory Returns

    Repair service is normally available through local #271 for each unit to be repaired, whether it is in or authorized EFJohnson Land Mobile Radio Service out of warranty. These forms are available free of Centers. If local service is not available, the equipment charge by calling Customer Service (see Section 1.6)

  • Page 10: Replacement Parts

    1.9 INTERNET HOME PAGE models. 1.10.2 DEFINITIONS EFJohnson has a site on the World Wide Web that can be accessed for information on the company and such things as products, systems, and regulations. The Intrinsically Safe - This is a fire rating given to these address is http://www.efjohnson.com.

  • Page 11: Possible Ignition Sources

    GENERAL INFORMATION tion. When electrical equipment is given this rating, the ignition of a particular atmosphere if two of the faults equipment is considered incapable of releasing suffi- specified in the testing procedure occur. In other cient electrical and thermal energy under normal oper- words, it must be able to withstand two simultaneous ation or specified fault conditions per the testing unrelated breakdowns without causing ignition.

  • Page 12: Accessing Pc Boards

    GENERAL INFORMATION Table 1-2 Material Classification 1. If you have not already done so, remove the battery by pressing the release button upward and then Typical Hazard Group Class sliding it off the transceiver. If the belt clip is Acetylene mounted on the back, it must also be removed.

  • Page 13: Removing Rf Unit

    GENERAL INFORMATION 4. Remove the PC board by lifting it upward. The RF- LOCK to-logic board connector under the IF board must unplug, so some resistance may be encountered. Do not pull on the IF or PLL board assemblies because they can be easily damaged.

  • Page 14: 7780 Specifications

    GENERAL INFORMATION 7780 SPECIFICATIONS The following are general specifications intended for use in testing and servicing the transceiver. For current advertised specifications, refer to the 7780 product information sheet available from your E.F. Johnson sales representative. Specifica- tions are subject to change without notice. GENERAL Operating Mode SMARTNET/SmartZone (trunked) and conventional (non-trunked)

  • Page 15: Transceiver Operation

    TRANSCEIVER OPERATION SECTION 2 TRANSCEIVER OPERATION 2.1 FEATURES able with the enhanced keypad model are also avail- able with the limited keypad model. The features not 2.1.1 GENERAL FEATURES available with the limited (3-key) model are as follows: • 16 zones with home zone select •...

  • Page 16: Top Panel Indicators

    TRANSCEIVER OPERATION Figure 2-1 Limited Keypad Model Figure 2-2 Full Keypad Model 2.2.2 TOP PANEL INDICATORS TX Indicator (Red) - Indicates when the transmitter FCN (Function) - This is a dealer programmable is keyed. switch that can control various functions (see Section 2.3.4).

  • Page 17: Front Panel Keys (Full Keypad Model)

    TRANSCEIVER OPERATION Telephone Radio- Talk-Around Monitor Priority Scan Keypad Prog. Wide Mode Channel Enabled Call Mode Mode Scan In Scan Private List Call Alphanumeric Display Low Battery Low Tx Busy Keypad Power Channel Locked Figure 2-3 Display 2.2.5 FRONT PANEL KEYS (FULL KEYPAD Alphanumeric Display - This eight-character area of MODEL) the display indicates alphanumeric messages and...

  • Page 18: General Operation

    TRANSCEIVER OPERATION • BUSY - A busy system or transmit channel is being If a conventional channel is selected and the detected by the Busy Channel Lockout feature (see Monitor option switch is programmed (see Section Section 2.4.5). 2.4.4), pressing that switch unsquelches/squelches the receiver and either voice or background noise is - The battery needs recharging (see Section heard.

  • Page 19: Low Battery Indication

    TRANSCEIVER OPERATION Table 2-1 Option Switch Functions 2.3.6 LOW BATTERY INDICATION Smart- Smart- Conv. When the battery voltage falls below a preset Function Zone Mode Section level, the icon appears in the display. This Mode Mode icon stays on until power is turned off. In addition, the Backlight 2.3.3 following low battery indications may be programmed...

  • Page 20: Tone Enable/Disable

    TRANSCEIVER OPERATION channel it can be programmed for times from 15 disabled and vice versa. More information on these seconds up to 3 minutes, 45 seconds or disabled (not modes follows. used). If the transmitter is keyed continuously for longer than the programmed time, the transmitter is Standard Scanning disabled and an invalid condition tone sounds.

  • Page 21: Conventional And Smartnet/Smartzone

    TRANSCEIVER OPERATION • To turn radio wide scanning off, press the Radio Determining Which Channels are in Scan List Wide Scan option switch again. The icon is then no longer indicated and “RWS OFF” is Channels in the radio wide and standard displayed briefly.

  • Page 22: Conventional Features

    TRANSCEIVER OPERATION 2.4.2 DISPLAY MODE SELECTION ation). Monitoring before transmitting may not occur automatically in this mode, so the channel may have to be manually monitored before transmitting (see If the Displayed Information option switch is Section 2.4.3). Selecting a conventional channel programmed, the display mode used to indicate selects a transmit and receive frequency and other conventional channels can be user selected.

  • Page 23: Monitor Mode

    TRANSCEIVER OPERATION 2.4.4 MONITOR MODE 2.4.6 CALL GUARD SQUELCH The monitor mode temporarily disables squelch General control features (such as Call Guard squelch) so that all messages are heard on the selected channel. It also Call Guard® squelch (also called CTCSS/DCS overrides the Busy Channel Lockout feature (see next signaling) can be programmed on conventional section) and temporarily halts scanning.

  • Page 24: Penalty Timer

    TRANSCEIVER OPERATION to that channel are then reassigned to all the other switch again, that icon is no longer displayed and channels in the current zone. The reassignments “RTA OFF” is flashed. Changing channels or turning remain in effect even after power is cycled. power off does not change the selected talk-around mode.

  • Page 25: Priority Channel Sampling

    TRANSCEIVER OPERATION 1. Press the Scan option switch to enable scanning. Transmitting in Scan Mode The currently selected scan list is momentarily indicated as “Scan x”, where “x” is the list number Each conventional scan list can be programmed (1-3). for one of the following modes.

  • Page 26: Standard Conventional Calls

    TRANSCEIVER OPERATION channel is sampled while listening to a message on Placing a Standard Conventional Call some other channel. 1. Turn power on and set the volume as described in The priority sampling times are programmed by Section 2.3.2. Select the channel programmed for the following parameters: the mobile you want to call (see Section 2.3.7).

  • Page 27: Smartnet/Smartzone Features

    TRANSCEIVER OPERATION • Post-TX ANI - A preprogrammed ANI sequence is If the radio system cannot be accessed within 500 automatically sent each time you release the PTT ms of pressing the PTT switch, a continuous tone switch. sounds until the system is accessed or the PTT switch is released.
  • Page 28 TRANSCEIVER OPERATION • 2. Enter the index of the desired ID if you know it or If neither your radio nor the radio being called is scroll through the list using the keys authorized to make unit-to-unit calls, “REJECT” until you find the desired ID. Press the CLR key to is displayed and a continuous tone sounds.

  • Page 29: Private Conversation Ii Calls

    TRANSCEIVER OPERATION displayed. When the system is no longer busy, the 3. Press the PTT switch to initiate the call. The display call back tone (four beeps) is heard and your radio then indicates the alias of the destination radio. Wait automatically starts transmitting.

  • Page 30: Telephone Calls

    TRANSCEIVER OPERATION 3. Press the PTT switch or the ENT key to initiate the 2. To answer the call, press the Private Call option switch and then the PTT switch and begin talking. call. The display indicates “WAIT” while the The private call mode is indicated by “C”...

  • Page 31: Call Alert

    TRANSCEIVER OPERATION • If an out-of-range condition exists or the radio List Entry Method (All Models) system is not in service, “LOST CALL” is displayed and a continuous tone sounds. End the 1. With a SMARTNET/SmartZone channel selected, call by pressing the CLR key. momentarily press the Call Alert option switch.

  • Page 32: Messaging

    TRANSCEIVER OPERATION Answering a Page 2. To change the displayed status, enter the index of the desired status if you know it or scroll through the list 1. When a page is received, the display alternately using the keys until you find the desired status.

  • Page 33: Failsoft Operation

    TRANSCEIVER OPERATION Emergency Calls ning disabled. Then when a channel is selected again that permits scanning, it is automatically re-enabled. An emergency call urgently requests access to a voice channel. To place this call, proceed as follows: In addition to calls on channels in the scan list, pages, private calls, and telephone calls are received 1.

  • Page 34: Supervisory Tones

    TRANSCEIVER OPERATION • currently registered on a site, “SITE x” is displayed, The time-out timer is about to expire or the penalty where “x” is the site number. If the site is locked (see timer has expired (Sections 2.3.9 and 2.4.7). •...

  • Page 35: Keypad Programming

    TRANSCEIVER OPERATION 2.7.2 MENU DESCRIPTION Six Beeps • The paged radio received the page and acknowl- A menu is used to select parameters to be edged it (Section 2.5.7). changed in the keypad programming mode. When the • The message that was sent has been received and Keypad Programming mode is selected by pressing the acknowledged (Section 2.5.8).

  • Page 36: Channel Change Parameter

    TRANSCEIVER OPERATION 2.7.4 CHANNEL CHANGE PARAMETER 2.7.6 CHANNEL PARAMETERS The “CHAN CHG” menu parameter selects the The “CHAN PRM” menu parameter selects the conventional channel to be reprogrammed. Disabled or conventional channel parameter to be reprogrammed SMARTNET/SmartZone channels cannot be selected. (see following).

  • Page 37: Transceiver Programming

    The PCTrunk software is supplied on two 3-1/2” transceiver diskettes. Install this software as follows: • EFJohnson PCTrunk programming software. 1. Make sure that there are no other Windows applica- 3.1.2 COMPUTER DESCRIPTION tions open during this installation procedure. Also,...

  • Page 38: Connecting Rpi To Computer And Transceiver

    TRANSCEIVER PROGRAMMING Windows 95/98 - Select Start > Settings > Control Modular PROGRAMMING CABLE Part No. 597-2002-122/-123 Connector Panel and double click “Add/Remove Programs”. Orange To Radio Then click Install and Next. When SETUP.EXE is Black Accessory Connector Mic Audio automatically located on the floppy drive, click Reset [1] Green...

  • Page 39: File Size Indication

    TRANSCEIVER PROGRAMMING System - These screens program the parameters that one conventional system can be set up, and it is auto- are unique to the displayed Conventional, matically created when a programming file is opened SMARTNET, or SmartZone system. The system to be as described in Section 3.1.6.

  • Page 40: Programming Radio Wide Parameters

    TRANSCEIVER PROGRAMMING 3.2.2 PROGRAMMING RADIO WIDE 3.2.5 PROGRAMMING RADIO PARAMETERS (DOWNLOADING FILE) 1. To display the Radio Wide screens, click the Radio When all the required programming information Wide button or select Window > Radio Wide has been entered in the various programming screens, Parameters in the menu bar (see Section 3.1.8).

  • Page 41: Radio Type Menu

    TRANSCEIVER PROGRAMMING 3.3.4 UPLOAD MENU Open - Opens a programming file that was previously saved to disk. If a modified file is currently open, you are asked if that file should be saved before the new file is opened. Close - Closes the current file. If the file has been modified and the changes have not been saved, you are asked if the changes should be saved before closing.

  • Page 42: Help Menu

    TRANSCEIVER PROGRAMMING 3.3.7 HELP MENU programmed. Currently, only 800 MHz 77xx models are available. Zones Total Zones - The total number of zones currently set up. The maximum number allowed is 16. Zones are Contents - Displays the help system table of contents. added by clicking the Add button (see following).
  • Page 43 TRANSCEIVER PROGRAMMING Radio Wide Scan List NOTE: The radio-wide scan list cannot be pro- grammed until all channels to be included have been set up as described in the Conventional and SMART- NET/SmartZone sections (3.5 and 3.6, respectively). Clicking the Radio Wide Scan List button in the General screen displays the following screen which programs the radio-wide scan list described in Section 2.3.11.

  • Page 44: Radio-Wide Conventional Screen

    TRANSCEIVER PROGRAMMING 2. To program a switch, click the arrow to display the Full Spectrum CC Scan pull-down menu and then select the desired function from that menu. NOTE: Side Button 1 is the top In a SmartZone system, if all potential control (AUX) button and Side Button 2 is the bottom (FCN) channel frequencies have been searched, the radio button.

  • Page 45: Radio-Wide Portable Options Screen

    TRANSCEIVER PROGRAMMING after the control channel returns from the Voice On LED Indicator - Selects if the top panel BAT LED Control mode. indicates a low battery condition. 3.5 PROGRAMMING CONVENTIONAL Adjustable Parameters SYSTEMS AND CHANNELS Busy Override Delay - With SmartZone operation, 3.5.1 INTRODUCTION this is the amount of time a user must press the PTT switch to override a SmartZone busy that occurs...
  • Page 46 TRANSCEIVER PROGRAMMING Timers NOTE: The conventional scan lists cannot be programmed until all the conventional channels are Tx Time-Out Timer - This timer limits the length of programmed. Therefore, first program the channels as transmissions (Section 2.3.9). Times up to 3 minutes, described in Sections 3.5.3 and 3.5.4.

  • Page 47: Setting Up Conventional Channels

    TRANSCEIVER PROGRAMMING also the type of priority channel (see the “Priority Priority Channel Selection Channel” description which follows). The following modes are available: The Scan Mode parameter in the preceding Conventional System Scan List screen selects if No Priority - Priority sampling does not occur (all priority channel sampling is enabled on the selected channels are scanned in sequence).

  • Page 48: Conventional Channel Screen Parameters

    TRANSCEIVER PROGRAMMING Figure 3-3 Conventional Channel Screen 3.5.4 CONVENTIONAL CHANNEL SCREEN PARAMETERS The following parameters are programmed in the conventional channel screen shown in Figure 3-3. Selected Channel The parameters in this screen are as follows: Zone Box - Clicking the arrow to the right of this box Channel - Selects the channel to be edited.

  • Page 49: Programming Smartnet/Smartzone Systems And Channels

    TRANSCEIVER PROGRAMMING NOTE: Channel numbers not assigned must be Signaling programmed for conventional operation and then not enabled in the above screen because SMARTNET/ Off - No ANI signaling is used. SmartZone channels cannot be disabled. Leading ANI - A DTMF-coded ID is sent at the Channel Type beginning of each transmission.

  • Page 50: Smartnet/Smartzone System Screens

    TRANSCEIVER PROGRAMMING 3.6.2 SMARTNET/SMARTZONE SYSTEM all other frequencies. When it is disabled, deviation is GENERAL SCREEN 5 kHz with all frequencies. PTT ID Enables or disables the PTT ID. System Lists Button This button displays the screens used to program the various lists that are unique for each SMARTNET/ SmartZone system.

  • Page 51: Other Id's Screen

    TRANSCEIVER PROGRAMMING 3.6.3 SMARTNET/SMARTZONE SYSTEM Disabled - Telephone calls cannot be placed or OTHER ID’S SCREEN received. Answer Only - Telephone calls can be received but not placed. List Only - Telephone calls can be placed and received, and numbers can be recalled from memory only.

  • Page 52: Talk Groups Screen

    TRANSCEIVER PROGRAMMING 3.6.5 SMARTNET/SMARTZONE SYSTEM Tx/Rx Frequency - Programs the failsoft channel TALK GROUPS SCREEN frequency if “Enabled” is checked. 3.6.6 SMARTNET/SMARTZONE SYSTEM EMERGENCY SETTINGS SCREEN The SMARTNET/SmartZone Emergency Settings screen and the parameters it programs are as follows: The SMARTNET/SmartZone Talk Groups screen is used to set up SMARTNET/SmartZone talk groups and program unique talk group information.

  • Page 53: Lists Screens

    TRANSCEIVER PROGRAMMING 3.6.7 SMARTNET/SMARTZONE SYSTEM include 0-9, #, (,), and P (a “P” programs a pause). LISTS SCREENS The maximum number of digits excluding (,) and spaces is 16, and the maximum including (,) and Clicking the button in the General spaces is 24.
  • Page 54 TRANSCEIVER PROGRAMMING Announcement Groups Screen screen is displayed. Select the announcement group to be edited from a pull-down menu selecting by clicking the “AG” arrow. Then click the talk groups to select/ de-select them and then click the “Update List” button to make the changes.
  • Page 55 TRANSCEIVER PROGRAMMING Trunking Call List Screen Priority Monitor Scan Screen This screen is shown above, and it allows the list of IDs used for private calls to be programmed. A maximum of 16 IDs can be programmed (see Sections 2.5.4 and 2.5.5). To edit this list, click the Trunking Call List tab and then the “Modify List”...

  • Page 56: Setting Up Smartnet/Smartzone Channels

    TRANSCEIVER PROGRAMMING 4. Repeat the preceding steps for the other scan lists if 1. Make sure that the desired zone is selected in the applicable. Zone box. Status Aliasing Screen 2. Select the channel number in the Channels Index box which is to be programmed with the channel. 3.

  • Page 57: Smartnet/Smartzone Channel Screen

    TRANSCEIVER PROGRAMMING Figure 3-4 SMARTNET/SmartZone Channel Screen Enable This Channel - Not used because SMART- Other Screen Parameters NET/SmartZone channels are always enabled if set up. To disable a channel so System Specific Information - With SMARTNET/ that it is not selectable, choose the conven- SmartZone systems, indicates the system ID tional type and do not check this box.

  • Page 58: Call Guard (Ctcss/Dcs) Codes And Tones

    TRANSCEIVER PROGRAMMING Talk Permit Tone - When enabled, a short tone List” is programmed, scanning is not selectable on sounds after a request for a group call has been that channel. approved by the main controller. This indicates that speaking can begin. When disabled, no audio feed- Auto Scan - When enabled and a channel is selected, back is used to indicate when speaking can begin.
  • Page 59 TRANSCEIVER PROGRAMMING 800 MHz Channels FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx Freq. Freq Freq. Freq Freq Freq 851.6125 806.6125 852.8625 807.8625 854.1125 809.1125 851.6375 806.6375 852.8875 807.8875 854.1375 809.1375 852.9125 807.9125...
  • Page 60 TRANSCEIVER PROGRAMMING 800 MHz Channels FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx Freq. Freq Freq. Freq Freq Freq 855.3625 810.3625 856.6125 811.6125 857.8625 812.8625 855.3875 810.3875 856.6375 811.6375 857.8875 812.8875 856.6625 811.6625...
  • Page 61 TRANSCEIVER PROGRAMMING 800 MHz Channels FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx Freq. Freq Freq. Freq Freq Freq 859.1125 814.1125 860.3625 815.3625 861.6125 816.6125 859.1375 814.1375 860.3875 815.3875 861.6375 816.6375 860.4125 815.4125...
  • Page 62 TRANSCEIVER PROGRAMMING 800 MHz Channels FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx Freq. Freq Freq. Freq Freq Freq 862.8625 817.8625 864.1125 819.1125 865.3625 820.3625 862.8875 817.8875 864.1375 819.1375 865.3875 820.3875 864.1625 819.1625...
  • Page 63 TRANSCEIVER PROGRAMMING 800 MHz Channels FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx Freq. Freq Freq. Freq Freq Freq 866.3000 821.3000 866.9250 821.9250 867.5500 822.5500 866.3125 821.3125 866.9375 821.9375 867.5625 822.5625 867.5750 822.5750...
  • Page 64 TRANSCEIVER PROGRAMMING 800 MHz Channels FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx FCC Chan. Mobile Rx Mobile Tx Freq. Freq Freq. Freq Freq Freq 868.1750 823.1750 868.8000 823.8000 869.4250 824.4250 868.1875 823.1875 868.8125 823.8125 869.4375 824.4375 868.8250 823.8250...

  • Page 65: Circuit Description

    CIRCUIT DESCRIPTION SECTION 4 CIRCUIT DESCRIPTION 4.2 SYNTHESIZER DESCRIPTION 4.2.1 INTRODUCTION 4.1 POWER SWITCHING AND REGULATION 4.1.1 POWER SWITCHING 4.2.2 VCO (IC3), BUFFERS (Q10-Q12) 4.1.2 5-VOLT REGULATORS (IC401, IC402) November 1999 Part No. 001-7780-500...

  • Page 66: Vco And Tcxo Modulation

    CIRCUIT DESCRIPTION the VCO from the receiver and transmitter and the The divide numbers are chosen so that when the counters in synthesizer IC1. VCO is operating at the correct frequency, the VCO- derived input to the phase detector is the same A switching circuit on the output of Q10 routes frequency as the TCXO-derived input.

  • Page 67: Receiver Circuit Description

    CIRCUIT DESCRIPTION frequency is low, the VCO-derived input to the phase ance matching on the output is provided by C15, L9, detector is lower than the TCXO-derived input (or the L10, C18, C19, and R99. The first IF signal is then fed phase lags the TCXO-derived input).

  • Page 68: Squelch Circuit (Ic4A/B, Ic5A)

    CIRCUIT DESCRIPTION input signal to these transistors is high for narrow by the switching circuit consisting of D7 and other band channels. Therefore, with narrow band chan- components (see Section 4.2.2) and applied to ampli- nels, D14/D16 are forward biased and D13/D15 fier Q9.

  • Page 69: Power Control (Ic2A/B)

    CIRCUIT DESCRIPTION 4.4.3 POWER CONTROL (IC2A/B) from two external devices. They are 16K x 8 EEPROM IC304 and DTMF encoder IC303. Another The power output circuit maintains a steady serial port formed by XTXD and XRXD is used to power output level by controlling the supply voltage to transfer programming data to and from an external the first stage in power module IC1 (VCC1).

  • Page 70: Microprocessor Ic306 Pin Descriptions

    CIRCUIT DESCRIPTION Table 4-1 Microprocessor IC306 Pin Descriptions Input or Active High Port Name Description Name Output or Low Input Reset pulse input XTAL Input System clock connection terminal EXTAL Input System clock connection terminal Input Not used Input Flash ROM data import control (L=load) Not used Not used (external pull-up) STBY...
  • Page 71 CIRCUIT DESCRIPTION Table 4-1 Microprocessor IC306 Pin Descriptions (Continued) November 1999 Part No. 001-7780-500...

  • Page 72: Expander (Ic208)

    CIRCUIT DESCRIPTION Table 4-1 Microprocessor IC306 Pin Descriptions (Continued) Input or Active High Port Name Description Name Output or Low Output RF 5C supply control signal High SN_TR Output SMARTNET circuit control signal (H=SMARTNET Tx Data) High EEPCS Output EEPROM chip select signal XTXD Output Programming data out...

  • Page 73: Transmit Data Filter (Ic206B/Ic206A)

    CIRCUIT DESCRIPTION cut-off frequency is approximately 190 Hz. Q103 from IC113B. The data output signal on IC210, pin 1 lowers the cut-off frequency of the filter by switching is then applied to pin 24 of IC209 which is the input to additional capacitance into the filter.

  • Page 74: Low-Pass Filter (Ic205A/B)

    CIRCUIT DESCRIPTION caused by high input levels from the internal or is provided by gate IC110 which is controlled by the external microphone. The bias voltage to this stage SN_TR signal from pin 95 of the microprocessor. and also to IC201A is produced by voltage divider When this signal is high, the transmit data signal on R208/R207.

  • Page 75: Battery Pack And Charger Information

    BATTERY PACK AND CHARGER INFORMATION SECTION 5 BATTERY PACK AND CHARGER INFORMATION • 5.1 BATTERY PACK Repeated deep discharge. Recharging should take place soon after the low battery indication appears. CAUTION This indication appears when the battery pack voltage drops to 6.3 volts which is approximately Dispose of these batteries in accordance with local reg- 1 volt per cell.
  • Page 76 BATTERY PACK AND CHARGER INFORMATION change in voltage) sensing to determine when the The primary method used by these chargers to battery is nearly fully charged. This type of sensing detect a fully charged battery is to sense the point at prolongs battery pack life because overcharging is which the battery temperature begins increasing at a minimized.

  • Page 77: Alignment Procedure And Performance Tests

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS SECTION 6 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS RPI-Transceiver Cable Remote Programming Interface (RPI) Part No. 023-9800-000 Part No. 597-2002-123 Audio Generator 680-Ohm Speaker Load PC-Compatible Computer 50-ohm Load Signal Generator/ Wattmeter Comm. Monitor Figure 6-1 Alignment Setup Diagram 6.1 GENERAL Only two adjustments are made manually and the others are made digitally using the PCTune software.

  • Page 78: Tune Software

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 6.1.3 TUNE SOFTWARE • • • • • Speaker Audio Mic Audio In Jack Out Jack 2.6 mm/3/32” 3.6 mm/1/8” Phone Jack Phone Jack November 1999 Part No. 001-7780-500...

  • Page 79: Preliminary Setup

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS Figure 6-2 PCTune Main Screen 6.1.4 PRELIMINARY SETUP the top. The functions of the various buttons in this screen are as follows: 1. With transceiver power turned off, connect the RPI to an unused serial port of the computer. Then Read Tune Settings Button - Reads and displays the connect the RPI to the accessory jack of the trans- various tune settings currently stored in the radio.

  • Page 80: Removing Transceiver Cover

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 2. Click the “Complete Tune” button to automatically 7.5 VDC go from one adjustment to the next or click the Power Supply “Tune” button in the “Tx Power” box to perform (Freq Adj) only this adjustment. 3.

  • Page 81: Audio Deviation

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 3. Follow the instructions on the screen and adjust for which follows can normally be skipped. Proceed as the best demodulated square wave with minimum follows to set the squelch: tilt and overshoot. 1. If manually selecting each test, click the “Tune” 6.4 AUDIO DEVIATION button in the “Squelch”...

  • Page 82: Receiver Performance Tests

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS PERFORMANCE TESTS 6.8 RECEIVER PERFORMANCE TESTS 6.8.3 SQUELCH SENSITIVITY 6.8.1 PRELIMINARY SETUP With the test setup used for the preceding test, slowly increase the signal generator output until the This transceiver does not have a special test mode squelch just opens (audio is enabled).

  • Page 83: Transmitter Performance Tests

    ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 6.9 TRANSMITTER PERFORMANCE TESTS 6.9.3 TRANSMIT MODULATION 6.9.1 POWER OUTPUT 1. Select a channel not programmed for Call Guard (CTCSS/DCS) squelch and monitor the transmit Refer to Section 6.8.1 for information on test signal with a communication monitor. Speak into channels.
  • Page 84 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS This page intentionally left blank. November 1999 Part No. 001-7780-500...

  • Page 85: Parts List

    PARTS LIST SECTION 7 PARTS LIST Ref No. Description Part No. Ref No. Description Part No. MP 50 Himerio-sheet (X) 022-3906-268 CHASSIS PARTS MP 52 FCC serial No. sticker (AZ)-1 022-3907-061 MP 59 Insulation plate (BI) 022-3907-071 EP 01 B-3826B #1125-3A (chassis flex) 022-3906-001 MP 60 2176 earth plate 022-3907-076 EP 02...

  • Page 86: 3-Key Assembly

    PARTS LIST DISPLAY ASSEMBLY Ref No. Description Part No. Ref No. Description Part No. 3-KEY ASSEMBLY IC 1 LC75834W 022-3907-015 52204-2990 022-3906-128 EP 1 B-5188B #2176-3D (3-key PC bd) 022-3907-091 AXN820735 022-3906-132 C1608 CH 1H 330J-T-A 022-3906-070 MP 01 10-key front panel (plastic) 022-3907-058 C1608 CH 1H 330J-T-A 022-3906-070...

  • Page 87: If Assembly

    PARTS LIST 10-KEY ASSEMBLY IF ASSEMBLY Ref No. Description Part No. Ref No. Description Part No. C1608 CH 1H 330J-T-A 022-3906-070 C 17 C1608 CH 1H 680J-T-A diode 022-3906-798 C 18 C1608 JB 1C 104KT-N 022-3906-614 DS 1 LN1371G-(TR) display/LED 022-3906-098 C 19 C1068 JB 1H 102K-T-A...

  • Page 88: Pll Assembly

    PARTS LIST IF ASSEMBLY Ref No. Description Part No. Ref No. Description Part No. R 21 ERJ3GEYJ 104 V resistor 022-3906-175 R 03 ERJ3GEYJ 101 V resistor 022-3906-143 R 22 ERJ3GEYJ 331 V resistor 022-3906-389 R 04 ERJ3GEYJ 332 V resistor 022-3906-159 R 23 ERJ3GEYJ 152 V resistor...
  • Page 89 PARTS LIST RF UNIT Ref No. Description Part No. Ref No. Description Part No. C 035 C1608 CH 1H 040B-T-A 022-3906-609 C 084 C1608 CH 1H 330J-T-A 022-3906-070 C 036 C1608 CH 1H 150J-T-A 022-3906-067 C 085 C1608 CH 1H 330J-T-A 022-3906-070 C 037 C1608 CH 1H 330J-T-A...
  • Page 90 PARTS LIST RF UNIT Ref No. Description Part No. Ref No. Description Part No. C 139 C1608 JB 1C 104KT-N 022-3906-614 L 11 ELJRE 33NJ 33N coil 022-3907-043 C 140 0.5P C1608 CH 0.1P 022-3906-084 L 12 ELJRE 10NJ 10N coil 022-3906-493 L 13 DCS3220-09 coil...
  • Page 91 PARTS LIST RF UNIT Ref No. Description Part No. Ref No. Description Part No. Q 18 2SC4215-Y transistor 022-3906-320 R 051 ERJ3GEYJ 472 V resistor 022-3906-160 Q 19 DTA144EE transistor 022-3907-024 R 052 ERJ3GEUJ 560V resistor 022-3906-142 Q 20 DTA144EE transistor 022-3907-024 R 053 39K ERJ3GE resistor...

  • Page 92: Logic Unit

    PARTS LIST RF UNIT LOGIC UNIT Ref No. Description Part No. Ref No. Description Part No. R 104 DRJ3GEYJ 561 V resistor 022-3906-151 C 030 C1608 JB 1C 104KT-N 022-3906-614 C 031 C1608 JB 1C 104KT-N 022-3906-614 IPS-1041-2 022-3906-133 C 032 C1608 CH 1H 330J-T-A 022-3906-070 ERJ3GE-JPW V resistor...
  • Page 93 PARTS LIST LOGIC UNIT Ref No. Description Part No. Ref No. Description Part No. C 139 1 C2012 10V B 022-3907-034 C 303 C1608 CH 1H 150J-T-A 022-3906-067 C 140 4.7 10V MSVA 022-3906-361 C 304 C1608 CH 1H 180J-T-A 022-3906-068 C 141 1 C2012 10V B...
  • Page 94 PARTS LIST LOGIC UNIT Ref No. Description Part No. Ref No. Description Part No. C 449 C1608 CH 1H 330J-T-A 022-3906-070 IC 202 NJM2904V-TE1 IC 022-3906-016 C 450 C1608 CH 1H 330J-T-A 022-3906-070 IC 203 TC4W53FU (TE12L) IC 022-3907-010 C 451 C1608 CH 1H 330J-T-A 022-3906-070 IC 204 TC4W66FU(TE12L) IC...
  • Page 95 PARTS LIST LOGIC UNIT Ref No. Description Part No. Ref No. Description Part No. Q 406 UMD6 TL diode 022-3907-023 R 155 ERJ3GEYJ 203V resistor 022-3906-528 R 156 ERJ3GEYJ 223V resistor 022-3906-167 R 101 ERJ3GEYJ 154V resistor 022-3906-392 R 157 ERJ3GEYJ 202V resistor 569-0155-202 R 102...
  • Page 96 PARTS LIST LOGIC UNIT Ref No. Description Part No. Ref No. Description Part No. R 239 330K ERJ3GE resistor 022-3906-180 R 324 ERJ3GEYJ 104 V resistor 022-3906-175 R 240 ERJ3GEYJ 103V resistor 022-3906-163 R 325 ERJ3GEYJ 104 V resistor 022-3906-175 R 241 ERJ3GEYJ 683V resistor 022-3906-173...
  • Page 97 PARTS LIST MP35 MP18 MP35 MP25 November 1999 7-13 Part No. 001-7780-500...

  • Page 98: 10-Key Board

    PARTS LIST Display Board (Display) MP9 (4) (Display) (Display) (Display) MP15 (Display) (Display) MP12 (4) Display) Display Board (Display) MP16 (Display) MP10 (4) (Display) 10-Key Board (Display) (10-Key) (Display) (10-Key) MP15 (Display) 3-Key Board (Display) MP11 (Display) (Display) 10-KEY FRONT PANEL MP10 (2) (Display) (3-Key Bd)

  • Page 99: Logic Board

    PARTS LIST MP37 (2) (RF Board) MP4 (2) (Chassis) MP49 (RF Unit) (Chassis) MP47 (4) (Chassis) MP39 (4) MP12 MP10 MP13 MP17 (Chassis) (Chassis) MP4 (2) (Jack Assy) MP45 (Jack Assy) MP36 (4) J1/MP5 (Jack Assy) MP50 MP16 (2) (Pad) (Chassis) (Jack Assy) (Jack Assy)
  • Page 100 PARTS LIST MP32 MP33 MP27 MP27 MP28 MP34 MP29 MP34 MP32 MP22 MP23 MP30 MP24 MP26 MP18 MP52 (Sticker) November 1999 Part No. 001-7780-500 7-16...

  • Page 101: Schematic Diagrams And Component Layouts

    SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS SECTION 8 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS PLL BOARD TOP VIEW PLL BOARD BOTTOM VIEW November 1999 Part No. 001-7780-500...
  • Page 102 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS IF BOARD TOP VIEW IF BOARD BOTTOM VIEW November 1999 Part No. 001-7780-500...

  • Page 103: Transceiver Block Diagram

    Ceramic Wide/Narrow Ceramic Ceramic Wide/Narrow Bandpass Band Bandpass Bandpass Band Filter Switch Filter Filter Switch LOGIC UNIT D15/ D13/ RF UNIT Wide/Narrow Band Select 450 kHz Second IF 44.775 MHz Second Injection RSSI Audio Amp EXT Terminal IC104 IF BOARD RECEIVER (Accessory Connector) First...
  • Page 104 JACK C140 C111 C138 R104 FIOUT HC20 IF5V FIIN R103 C135 IFIN C117 INFIN C125 XTAL RSSI HC12 C133 C134 C124 NOISE C132 C139 C128 HC18 HC16 C131 C127 C130 C109 C120 C114 C108 C129 RF5V C121 RF5C TMUT NOISE RSSI PLLST PLLSO...

  • Page 105: Rf Board

    RF5V REGULATOR 100K LIMITER/SECOND MIXER/DETECTOR IF AMP CONT 1.5K TA31136FN 2SK882 GR N.BYPASS VOUT 0.56U 0.01 OSCIN MIXIN 330K TK11350BM OSCOUT 0.01 820P SQUELCH MIXOUT N-REC N-DET 100K 220P IFIN RSSI MA2S728 IFOUT 0.047 CPV REGULATOR 470K FILOUT QUAD 100K FILIN AFOUT 0.001...
  • Page 106 On-Off Volume Control Channel Switch C141 C405 Q401 IC106 C122 R131 C406 Q403 C404 C121 R132 Q102 Q105 Q109 R117 C140 C123 D313 IC105 C402 IC401 C142 R337 C139 Q106 Q402 C420 C408 C113 C403 R145 C136 D310 C407 R326 C138 IC104 D312...
  • Page 107 RECEIVE AUDIO PROCESSING BANDPASS FILTER (300-3000 Hz) BATT BATT LVCC LVCC C402 BATTERY CHASSIS R167 C103 5.6K Q111 AUDIO AMP NPSPAC R109 100K 2SA1576 UNIT 0.039 0.047 0.01 C111 IC104 R146 Q102 6.8K 6.8K DTC144EE C104 R164 0.001 On-Off/ C105 100K R118 R119...
  • Page 108 Tx LED Busy LED Batt LED DISPLAY BOARD BOTTOM VIEW DISPLAY BOARD TOP VIEW November 1999 Part No. 001-7780-500...

  • Page 109: Display Board

    SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS TX LED BUSY LED BATTERY 2SA1576 2SA1576 2SA1576 LD-BU10394J SEC1601C SEC1401C SEC1801C LNJ310M6URA LNJ310M6URA LNJ310M6URA LNJ310M6URA 3.3K 2SA1576 S 0.047 COM3 COM4 VLCD VLCD1 VLCD2 100K 680P LC75834W KEYS0 KEYS1 KEYS2 KEYS3 KEYR0 BKLED KEYR1 KEYR2 KEYR3 MICE...

  • Page 110: 10-Key Board

    SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS (PHON) (STR) (HOME) (RCL) (CLR) (S.A/D) SCAN (SND) 10-KEY BOARD FRONT VIEW HC11 HC12 HC10 SPEAKER MICROPHONE 10-KEY BOARD BACK VIEW November 1999 Part No. 001-7780-500 8-10...
  • Page 111 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS Microphone Speaker 100K 100K 100K 100K 2SA1576 AXN720535 HC11 LN1371G-(TR) LN1371G-(TR) HC10 HC12 LN1371G-(TR) LN1371G-(TR) 10-KEY BOARD SCHEMATIC November 1999 8-11 Part No. 001-7780-500...

  • Page 112: 3-Key Board

    SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS SCAN MENU 3-KEY BOARD FRONT VIEW SPEAKER MICROPHONE 3-KEY BOARD BACK VIEW November 1999 Part No. 001-7780-500 8-12...
  • Page 113 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS Microphone Speaker 100K 100K 100K 2SA1576 AXN720535 LN1371G-(TR) LN1371G-(TR) 3-KEY BOARD SCHEMATIC November 1999 8-13 Part No. 001-7780-500...
  • Page 114 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS NOTES November 1999 Part No. 001-7780-500 8-14...
  • Page 116 Part No. 001-7780-500 11-99hph Printed in U.S.A.

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