Summary of Contents for E.F. Johnson Viking VX Series
- Page 1 IKING 800 MHz U NIVERSAL TATION Part No. 242-2008-332 First Printing September 1994 Part No. 001-2008-300 9-94mwp Printed in U.S.A.
- Page 3 LAND MOBILE PRODUCT WARRANTY The manufacturer's warranty statement for this product is available from your product supplier or from the E.F. Johnson, 299 Johnson Avenue, Box 1249, Waseca, MN 56093-0514. Phone (507) 835-6222. WARNING DO NOT allow the antenna to touch or come in very close proximity with the eyes, face, or any exposed body parts while the radio is transmitting.
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Page 5: Table Of Contents
TABLE OF CONTENTS INTRODUCTION AND OPERATION SCOPE OF MANUAL ............... 1-1 DESCRIPTION . - Page 6 TABLE OF CONTENTS (CONT’D) EDIT..................4-2 SETUP PARAMETERS.
- Page 7 TABLE OF CONTENTS (CONT’D) POWER AMPLIFIER ............... 6-8 AMPLIFIER/PRE-DRIVER (U501) .
- Page 8 TABLE OF CONTENTS (CONT’D) J7/P7 J8/P8 IRDB ................6-32 J105/P105 RX MUTE GATE .
- Page 9 TABLE OF CONTENTS (CONT’D) SYNTHESIZER SERVICING ..............8-1 INTRODUCTION .
- Page 10 10-9 RF INTERFACE BOARD COMPONENT LAYOUT ..........10-6 10-10 RF INTERFACE BOARD SCHEMATIC .
- Page 11 TABLE OF CONTENTS (CONT’D) ALARM CROSS REFERENCE..............4-4 4-10 DELETE REPEATER .
- Page 12 TABLE OF CONTENTS (CONT’D) LIST OF TABLES ACCESSORIES ................1-2 ACTIVE ALARMS .
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Page 13: Introduction And Operation
SECTION 1 INTRODUCTION AND OPERATION 1.1 SCOPE OF MANUAL 1.5 ACCESSORIES This service manual provides installation, opera- The accessories available for the VIKING VX- tion, programming, service, and alignment informa- SU82 are listed in Table 1-1. A brief description of tion for the VIKING VX-SU82, PN 242-2008-332. -
Page 14: Factory Customer Service
***Included in kit 023-2000-128 1-800-328-3911 2000 Series Service Kit - This kit contains an alarm When your call is answered at the E.F. Johnson wire harness, extender power cable, programming kit, Company, you will hear a brief message informing extender card, extender harness, and a TIC bias cable. -
Page 15: Product Warranty
"1" as described in Section 1.6. When ordering, 1.8 FACTORY RETURNS please supply the part number and quantity of each part ordered. E.F. Johnson dealers also need to give Repair service is normally available through local their account number. -
Page 16: Software Updates/Revisions
Section 1.6. appear in the Test mode screens to alert the user that there is an alarm and action should be taken. Refer to E.F. Johnson Company Figure 1-1 for an example of this type of alarm. Service Parts Department 299 Johnson Avenue P.O. -
Page 17: Power Supply
INTRODUCTION AND OPERATION Ground Xmit Indicator J501 is connected to ground for test equipment Indicates that the Universal Station’s transmitter when monitoring voltage test point J502. is keyed by the logic. A/D Level Test Point 1.11.3 POWER SUPPLY J500 provides a test point to monitor audio and data levels, AC fail and thermal sensor. - Page 18 INTRODUCTION AND OPERATION Table 1-2 ACTIVE ALARMS Alarm No. Definition Test Mode IAC input 1 Active IAC input 2 Active IAC input 3 Active IAC input 4 Active IAC input 5 Active IAC input 6 Active IAC input 7 Active IAC input 8 Active MAC Processor Alarm HSDB Processor/Cable Alarm...
- Page 19 INTRODUCTION AND OPERATION SPECIFICATIONS GENERAL Dimensions 8.7" H x 17" W x 20.9" D Weight 58.6 lbs. (26.58 kg) AC Voltage/Frequency 100-240V AC/47-63 Hz AC Current 0.38A (Standby), 2.8A (75W), 1.7A (25W) AC Input Power 45W (Standby), 328W (75W), 199W (25W) DC Current at 26.5V DC 12A (75W), 6.5A (25W) Number of Channels...
- Page 20 INTRODUCTION AND OPERATION This page intentionally left blank. September 1994 Part No. 001-2008-300...
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Page 21: Installation
SECTION 2 INSTALLATION NOTE: If the Universal Station is installed in an area 2.1 INTRODUCTION that exceeds these environmental conditions, the site should be equipped with air filters to remove dust and Information in this section tells how to set up the Universal Station for operation. -
Page 22: Battery Backup
INSTALLATION should be protected by a circuit breaker. (A separate 15A breaker is recommended for three Universal Sta- TEMP tions). An AC surge protector is recommended for all equipment. NEGATIVE BATTERY Each Universal Station requires an outlet and the TERMINAL Receiver multicouplers require one each, so for a 5- channel system, a minimum of 7 outlets is required. -
Page 23: Protection Guidelines
If there appears to be any damage caused before shipping, file a claim with E.F. The hybrid protector is ideal for E.F. Johnson Johnson. Contact Customer Service for assistance equipment, and is strongly recommended. A hybrid (see Section 1.6). -
Page 24: Antenna Connections
(including static protective bags for cir- cuit cards) to repack the equipment. You are responsi- ble for proper repacking. E.F. Johnson cannot be responsible for damage to equipment caused by negli- gence. -
Page 25: Software
SECTION 3 SOFTWARE 3.1 INTRODUCTION Follow the computer instructions for loading the disk. The MS-DOS Revision 3.3 or later operating The Johnson Programming software on 3.5 inch system is needed to run the programs. The computer disk, Part No. 023-9998-297, uses an IBM ®... -
Page 26: Command Line Options
SOFTWARE 3.1.5 COMMAND LINE OPTIONS 3.1.6 COLOR OR MONOCHROME OPERATION HELP The programming software utilizes color for a color monitor and video card. However, with LCD- To show all options available from the command type displays, this may make some information hard line type: /h or /?. -
Page 27: Software Programs
SOFTWARE To make a programming disk, format a blank disk using FORMAT B: or FORMAT B: /S (use "/S" if File Edit Transfer Hardware Test Utilities it must be a bootable disk). Then copy the required program file or files to the programming disk. To do Receiver this, type COPY A:(filename.ext) B:(filename.ext). -
Page 28: Help F1
SOFTWARE HELP - F1 Load Save Save As FILE Print Config DOS Shell About... Quit ALT X Setup Parameters F4 Select Repeater EDIT Alarm Configuration Repeater Type Delete Repeater Read Setup Params F5 TRANSFER Write Setup Params F6 RF Data HARDWARE Revisions Receiver... -
Page 29: Pull Down Menus
SECTION 4 PULL DOWN MENUS 4.1 MENU DISPLAYS Load File Dir c:\example\file\load The menus available are listed at the top of the File *.qx screen. Move the cursor with the arrow keys to high- light the menu name. Press Enter to view the menu file1.qx and the arrow keys to scroll through the menu. -
Page 30: Dos Shell
PULL DOWN MENUS 4.2.4 DOS SHELL NOTE: The Repeater Number is for reference only. It is not necessary for repeater operation. Temporarily suspends the program and returns to DOS. Directories and other DOS commands can be CHANNEL NUMBER performed. To return to the program from DOS, type EXIT and press Enter. -
Page 31: Alarm Configuration
PULL DOWN MENUS Output Alarm Configuration Select Which Alarms To Edit Input Alarms Output Type Selection Description Tx ID Output Alarms Cross Reference Alarm 1 Output Type: Active Open DOOR OPEN Alarm 2 Output Type: Active Open FUEL 1/2 Alarm 3 Output Type: Active Open FUEL 1/4 Alarm 4 Output Type: Active Closed RF HALF POWER... -
Page 32: Repeater Type
PULL DOWN MENUS Alarm Cross Reference Selection Program Rptr 1 Select which Output Alarm is activated by each Input Alarm. 0. None 8. None 16. None 24. None 32. None 40. None Cancel 1. 1 9. None 17. None 25. None 33. -
Page 33: Hardware
PULL DOWN MENUS 4.5 HARDWARE 4.5.2 REVISION/VERSION The Revision/Version is displayed for the Uni- File Edit Transfer Hardware Test Utilities versal Station modules in this screen. The format is HSDB Monitor R.V (revision.version) for all modules. The TPI card Rx/Tx Data information also includes the release date of the soft- RF Data ware and the serial number of the Universal Station... -
Page 34: Exciter
PULL DOWN MENUS 4.6.3 EXCITER 4.7.1 COM PORT This menu selection walks through the align- This is the COM port used to send and receive ment of the Exciter on the computer screen. Refer to data from the TPI card. An interface cable connects Section 7.2 for the Exciter alignment and Figure 7-2 the Universal Station to the computer. -
Page 35: Repeater Programming
SECTION 5 REPEATER PROGRAMMING 11. Type in a valid DOS filename. For this example 5.1 CREATING A NEW FILE sta1.qx is used. An example will be used to show the program- ming for a new file. 12.The file consists of default and Rptr 1 under the file- name of sta1.qx. - Page 36 REPEATER PROGRAMMING Table 5-1 REPEATER SETUP PARAMETERS Parameter Response Description Repeater Number 1-20 Each Universal Station is assigned a number from 1-20. Channel Number 1-920 Each Universal Station is programmed with the Receive fre- quency that it is operating on. RF Power Level 25-75 Power level in watts for transmit power.
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Page 37: Circuit Description
CIRCUIT DESCRIPTION SECTION 6 CIRCUIT DESCRIPTION 6.1 RECEIVER 6.1.4 FIRST MIXER (U201), CRYSTAL FILTER (Z201/Z202) 6.1.1 INTRODUCTION First mixer U201 mixes the receive frequency The receiver is a double conversion type with with the first injection frequency to produce the 52.95 intermediate frequencies of 52.95 MHz and 450 kHz. -
Page 38: Second Mixer/Detector (U202)
CIRCUIT DESCRIPTION 52.95 MHz 4-POLE 52.95 MHz 52.95 MHz 4-POLE BANDPASS BANDPASS MIXER RF AMP CRYSTAL FILTER IF AMP CRYSTAL FILTER FILTER FILTER U201 A201 Q201 L201/L202/L203 L204/L205/L206 Z201/Z202 Q202 Z203/Z204 RECEIVE RF IN 52.95 MHz 753-771 MHz RSSI 17.5 MHz TCXO QUAD DETECTOR/2ND OSC U202 Y201... -
Page 39: Wideband Audio Amplifier (U203B)
CIRCUIT DESCRIPTION 6.1.7 WIDEBAND AUDIO AMPLIFIER (U203B) R803 decouples the VCO output from AC ground, L803 is an RF choke and C807, C808, C810 U203A amplifies the detected audio and data sig- and C811 provide RF bypass. nal. R280/R263 set the gain of the amplifier and R256/R262 provide a DC reference level. - Page 40 CIRCUIT DESCRIPTION DATA OUT PORT SELECT 13-STAGE R COUNTER OUTPUT A LOGIC OSC OR 4-STAGE DIVIDER DOUBLE-BUFFERED R REGISTER 16 BITS LOCK DETECT AND CONTROL SHIFT CLOCK REGISTER C REGISTER 8 BITS OUTPUT B CONTROL (OPEN-DRAIN OUTPUT) DATA IN LOGIC PHASE/FREQUENCY DETECTOR A ENABLE...
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Page 41: Lock Detect
CIRCUIT DESCRIPTION As previously stated, the counter divide numbers input to the phase detector. The overall divide number are chosen so that when the VCO is operating on the K can also be determined by the following formula: correct frequency, the VCO-derived input to the phase K = 64N + A detector (f ) is the same frequency as the TCXO-... -
Page 42: Vco And Tcxo Frequency Modulation
CIRCUIT DESCRIPTION 6.2.2 VCO AND TCXO FREQUENCY MODULA- capacitance that is multiplied. If a noise pulse or other TION voltage change appears on the collector, the base volt- age does not change significantly because of C809. Both the VCO and TCXO are modulated in order Therefore, the base current does not change and tran- to achieve the required frequency response. - Page 43 CIRCUIT DESCRIPTION SWITCH LPTT Q405 BUFFER TCXO EX MOD U402B U402A Y401 BUFFER U404A U404B PHASE DETECTOR A007 Q410/Q411 Q412 Q413 TO PA DATA BUFFER BUFFER U403 Q406/Q407 U407B V REF EX SYN CS EX BUFFER SYN LK EX Q403/Q404 Figure 6-4 EXCITER BLOCK DIAGRAM One input signal is the reference frequency (f Data is loaded into U403 serially on the Data...
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Page 44: Lock Detect
CIRCUIT DESCRIPTION Both the N and A counters begin counting down 6.2.7 BUFFER AMPLIFIER (Q410, Q411) from their programmed number. When the A counter reaches zero, it halts until the N counter reaches zero. A cascode amplifier formed by Q410 and Q411 Both counters then reset and the cycle repeats. - Page 45 CIRCUIT DESCRIPTION 6.3.2 DRIVER (Q501) balancing resistor. During normal operation, sig- nals of relatively equal phase and amplitude is present The output of U501 passes through several sec- on both ends of the balancing resistor. Therefore, no tions of 50 ohm microstrip and matching capacitors to current flows and no power is dissipated in the bal- the emitter of Q501.
- Page 46 CIRCUIT DESCRIPTION 6.3.6 FORWARD/REVERSE POWER DETECT, +26.5V DC CIRCULATOR, LOW-PASS FILTER Supply voltage to PA. +26.5V, 12A nominal The power amplifier output is directly coupled to (16A max) at 75W. the forward/reverse power detect board via a jumper. The output then enters the circulator and exits to the +26.5V DC low-pass filter board and the antenna jack for a mini- mum power output of 75W at the default setting.
- Page 47 CIRCUIT DESCRIPTION Pin 8 RF DATA A Pin 20 LPTT Data A (U105, pin 11) is the least significant bit The Logic Push-To-Talk is an open collector (LSB) in the 3 multiplex chips located on the RFIB. from the Controller. It has a sink capability of 20 mA This pin is a CMOS input from the Controller requir- and a maximum voltage rating of 18V.
- Page 48 CIRCUIT DESCRIPTION 8. Transmit Audio Modulation 6.4.3 FAN CONNECTORS (J104/J105) 9. High Stability Exciter Lock Detector 10.Exciter Lock Detector The outputs to the fan connectors are 4-pin plug- 11. Receiver Detector Audio in terminals that supply DC voltage. The plug on the 12.Receive Signal Strength Indicator fan is a 2-pin connector.
- Page 49 CIRCUIT DESCRIPTION troller will reduce power. The voltage level will be WO 120 CTRL OUT between 0V-5V and drive a 10k ohm load. This line This capacitive feedthrough pin carries the out- goes through the multiplexers and A D LEVEL line to put of the power control driver on the RFIB to the the Controller for processing.
- Page 50 CIRCUIT DESCRIPTION 6.4.6 RECEIVER CONNECTOR (J103) Pin 12 SYN CS EX Exciter main synthesizer chip select. It allows The connector from the Receiver (J201) to the data input to the specific synthesizer chip when the RF Interface board (J103) links the Receiver to the line is pulled to a logic low.
- Page 51 CIRCUIT DESCRIPTION Pin 13 RX INJ This pin is the power sense for the Receiver injection. It is a linear voltage source that is a func- tion of the injection power. The voltage level will be between 0V - 5V and be able to drive a 10k ohm load. Pin 14 SYN LK RX The main synthesizer lock detector output for the...