Viking Components 56K Wartungshandbuch

1-1Month 2000 Part No. 001-2004-601VIKING® VX UHF LTR-Net™ 25W-110W Repeater Part No. 242-20X4-613 Second Printing Month 2000 Part No. 001-20

TABLE OF CONTENTS (CONT.)67.2 EXCITER ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CIRCUIT DESCRIPTION6-40Month 2000 Part No. 001-2004-6016.11.5 P500 SIGNALING CONNECTORThe input and output connectors for the IAC are defined as foll

CIRCUIT DESCRIPTION6-41Month 2000 Part No. 001-2004-601Pins 28-29 +5V IN Pins 60-61This is the +5V input to the MPC from the power supply via the Cont

CIRCUIT DESCRIPTION6-42Month 2000 Part No. 001-2004-601Pin 11 UNUSED Pin 12 RF MUX 1 INHThe Multiplexer-1 Inhibit (U105, pin 6) is a CMOS input from

CIRCUIT DESCRIPTION6-43Month 2000 Part No. 001-2004-601Pin 32 RF DATAThis is a data pin with TTL levels from the Con-troller which has the dual role o

CIRCUIT DESCRIPTION6-44Month 2000 Part No. 001-2004-601

CIRCUIT DESCRIPTION6-45Month 2000 Part No. 001-2004-601Figure 6-17 MAIN PROCESSOR CARD BLOCK DIAGRAM

CIRCUIT DESCRIPTION6-46Month 2000 Part No. 001-2004-601Figure 6-18 MAIN AUDIO CARD LOGIC BLOCK DIAGRAM

CIRCUIT DESCRIPTION6-47Month 2000 Part No. 001-2004-601Figure 6-19 MAIN AUDIO CARD AUDIO BLOCK DIAGRAM

CIRCUIT DESCRIPTION6-48Month 2000 Part No. 001-2004-601Figure 6-20 INTERFACE ALARM CARD BLOCK DIAGRAM

7-1Month 2000 Part No. 001-2004-601ALIGNMENT AND TEST PROCEDURESSECTION 7 ALIGNMENT AND TEST PROCEDURES7.1 RECEIVER ALIGNMENTC R I T I C A L A D J

TABLE OF CONTENTS (CONT.)79 PARTS LISTVIKING VX UHF 110W REPEATER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ALIGNMENT AND TEST PROCEDURES7-2Month 2000 Part No. 001-2004-6017.1.4 RECEIVER FREQUENCY ADJUST1. Place a pick-up loop (sniffer) or RF probe con-nect

ALIGNMENT AND TEST PROCEDURES7-3Month 2000 Part No. 001-2004-6017. The software programs the synthesizer for 1 MHz above the Receive frequency.8. Rec

ALIGNMENT AND TEST PROCEDURES7-4Month 2000 Part No. 001-2004-6017.1.8 AUDIO DISTORTION1. Plug a 16 ohm load at J101 or J104 on the MAC (Main Audio Ca

ALIGNMENT AND TEST PROCEDURES7-5Month 2000 Part No. 001-2004-6017.2.2 VOLTAGE MEASUREMENTSApply power to the Exciter by plugging the 20-pin cable fr

ALIGNMENT AND TEST PROCEDURES7-6Month 2000 Part No. 001-2004-6017.2.6 TRANSMIT MODULATION ADJUST1. Connect a 10 dB pad and modulation analyzer to J40

ALIGNMENT AND TEST PROCEDURES7-7Month 2000 Part No. 001-2004-601assembly). Replacement of components within the power control circuitry of the RF Int

ALIGNMENT AND TEST PROCEDURES7-8Month 2000 Part No. 001-2004-601Figure 7-4 110W POWER AMPLIFIER ALIGNMENT POINTSFigure 7-5 RF INTERFACE BOARD ALI

ALIGNMENT AND TEST PROCEDURES7-9Month 2000 Part No. 001-2004-601Figure 7-7 RECEIVER TEST SETUPRFIBCOMMUNICATIONSSERVICE MONITOR20 dBHP 334AOSCILLOSC

ALIGNMENT AND TEST PROCEDURES7-10Month 2000 Part No. 001-2004-601Figure 7-8 EXCITER TEST SETUPJ401211920211920J201RFIBOSCILLOSCOPEDCVOLTMETERVOLTMET

ALIGNMENT AND TEST PROCEDURES7-11Month 2000 Part No. 001-2004-601Figure 7-9 110W POWER AMPLIFIER TEST SETUPAT TE NUATORTHRULINE40 dBHP 436APOWER MET

TABLE OF CONTENTS (CONT.)810-21 MAIN PROCESSOR CARD COMPONENT LAYOUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ALIGNMENT AND TEST PROCEDURES7-12Month 2000 Part No. 001-2004-6017.4 FULL REPEATER ALIGNMENT7.4.1 PERFORMANCE TEST PROGRAM1. Select the TEST - FULL R

ALIGNMENT AND TEST PROCEDURES7-13Month 2000 Part No. 001-2004-601Receiver TCXO Frequency AdjustmentC R I T I C A L A D J U S T M E N TThe TCXO must

ALIGNMENT AND TEST PROCEDURES7-14Month 2000 Part No. 001-2004-6012. On the MAC, plug a Speaker/Microphone into J101/J102.3. Adjust R236 until the 1 kH

ALIGNMENT AND TEST PROCEDURES7-15Month 2000 Part No. 001-2004-601Repeat Audio Level Adjustment NOTE: Audio Deviation Limit Adjustment must be complet

ALIGNMENT AND TEST PROCEDURES7-16Month 2000 Part No. 001-2004-601Transmitter Hum and Noise Ratio (Optional) NOTE: An HP8901A modulation analyzer is r

ALIGNMENT AND TEST PROCEDURES7-17Month 2000 Part No. 001-2004-601Voice Audio To Repeater1. Set MAC S100 and S101, all Sections OFF (see Figure 7-10).

ALIGNMENT AND TEST PROCEDURES7-18Month 2000 Part No. 001-2004-6012. Inject a 1.2 kHz tone from a balanced 600 ohm source, at the level determined by t

ALIGNMENT AND TEST PROCEDURES7-19Month 2000 Part No. 001-2004-601Figure 7-15 S100/S101 RS-232RS-232 Data To And From Switch (RNT) (Optional)These ar

ALIGNMENT AND TEST PROCEDURES7-20Month 2000 Part No. 001-2004-601NOTE: Assume all audio generators and voltmeters to be unbalanced unless stated other

ALIGNMENT AND TEST PROCEDURES7-21Month 2000 Part No. 001-2004-6017.5.3 VOICE AUDIO TO SWITCH1. On the MAC, set S100 and S101, all Sections OFF (see F

TABLE OF CONTENTS (CONT.)93-4 PROGRAMMING FLOWCHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ALIGNMENT AND TEST PROCEDURES7-22Month 2000 Part No. 001-2004-6017.5.6 FSK LINK - FSK DATA LEVEL TO SWITCH1. On the MAC, set S100 all Sections OFF s

ALIGNMENT AND TEST PROCEDURES7-23Month 2000 Part No. 001-2004-6018. Decrease Vs1 until: the relay disengages the LED lights no voltage is present at t

ALIGNMENT AND TEST PROCEDURES7-24Month 2000 Part No. 001-2004-601Figure 7-23 MAC ALIGNMENT POINTSJ103J100R236J104RX DATALEVELRX AUDIOADJUSTMAIN AUDI

ALIGNMENT AND TEST PROCEDURES7-25Month 2000 Part No. 001-2004-601Figure 7-24 MAIN PROCESSOR CARD ALIGNMENT POINTSP1133643212 3412345678S212345611056

ALIGNMENT AND TEST PROCEDURES7-26Month 2000 Part No. 001-2004-601Figure 7-25 INTERFACE ALARM CARD ALIGNMENT POINTS+15V (GRN)+15V ACC (GRN)-5V (GRN)+

ALIGNMENT AND TEST PROCEDURES7-27Month 2000 Part No. 001-2004-601Figure 7-26 CIM ALIGNMENT POINTSS2J24132CR401CR402CR403CR404DS1(YEL)(GRN)(RED)(GRN)

ALIGNMENT AND TEST PROCEDURES7-28Month 2000 Part No. 001-2004-601

8-1Month 2000 Part No. 001-2004-601SERVICINGSECTION 8 SERVICING8.1 INTRODUCTION8.1.1 PERIODIC CHECKSThis repeater should be put on a regular mainte

SERVICING8-2Month 2000 Part No. 001-2004-6018.2.2 TCXO MODULECheck the signal at TCXO, pin 5. It should be 17.5 MHz for Y201 and Y401 at a level of

SERVICING8-3Month 2000 Part No. 001-2004-601Measure the prescaler input frequency at fin, pin 11. Then measure the output frequency at TEST 2, pin 13

TABLE OF CONTENTS (CONT.)107-5 RF INTERFACE BOARD ALIGNMENT POINTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SERVICING8-4Month 2000 Part No. 001-2004-601Figure 8-3 POWER SUPPLY REAR VIEWFigure 8-4 POWER SUPPLY FRONT VIEWABC123456789101112+28VGND+15VAC FAI

SERVICING8-5Month 2000 Part No. 001-2004-601Standby Battery JackThis provides a connection point for a +24V DC standby battery. Current is drawn from

SERVICING8-6Month 2000 Part No. 001-2004-6018.6.4 CHIP RESISTORSThe value of chip resistors is indicated by a num-ber printed on the resistor. A 3-d

SERVICING8-7Month 2000 Part No. 001-2004-6018.6.5 CHIP TRANSISTORS AND DIODESSurface mounted transistors and diodes are iden-tified by a special numb

SERVICING8-8Month 2000 Part No. 001-2004-601

9-1Month 2000 Part No. 001-2004-601PARTS LISTSECTION 9 PARTS LISTS Y MB O L PA RT NUMBER DESCRIPTION NUMBERVIKING VX UHF 110W REPEATERP

PARTS LIST9-2Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 560 68 pF ±5% 250V mica 510-0220-680 (400-430 MH

PARTS LIST9-3Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERA 008 RF input harness assembly 023-2000-185 A 009 Controller backpl

PARTS LIST9-4Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERP 004 32-pin DIN female straight 515-7082-200 P 005 64-pin DIN femal

PARTS LIST9-5Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERF 101 2A 250V AC sub-min 534-0017-017 F 102 2A 250V AC sub-min 534-0

11-1 REPEATER IDENTIFICATION. . . . . . . . . . . . 1-11-2 PART NUMBER BREAKDOWN. . . . . . . . . . . 1-11-3 ALARM IN TEST MODE . . . . . . . . . .

PARTS LIST9-6Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERR 118 20k ohm ±1% 1206 SMD 569-0111-430 R 119 20k ohm ±1% 1206 SMD 5

PARTS LIST9-7Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERREPEATER RX/EX MODULEPART NO. 023-2034-836HW001 5/8-24 x 0.094 hex n

PARTS LIST9-8Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 105 4.7 µF 16V tantalum SMD 510-2625-479 C 106 1

PARTS LIST9-9Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 248 4.7 pF ±5% NPO 1206 510-3602-479 C 249 1.5-5

PARTS LIST9-10Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 460 68 pF ±5% NPO 1206 chip 510-3602-680 C 461

PARTS LIST9-11Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERL 141 4.625T helical coil 016-1929-157 (400-430 M

PARTS LIST9-12Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERR 202 680 ohm ±5% 1206 SMD 569-0115-681 R 203 51

PARTS LIST9-13Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERTP101 Red vertical tip jack 0.08 105-2202-211 TP2

PARTS LIST9-14Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 419 .01 µF ±10% X7R chip 510-3606-103 C 420 5.6

PARTS LIST9-15Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERQ 403 Si NPN amp 576-0003-658 Q 404 Si NPN amp 57

27-22 BATTERY CHARGER TEST SETUP . . . . . . 7-237-23 MAC ALIGNMENT POINTS . . . . . . . . . . . . . 7-247-24 MAIN PROCESSOR CARD ALIGNMENT POINTS 7-

PARTS LIST9-16Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERUHF FEEDBACK LOOPPART NO. 023-2004-530C 001 .1 µF

PARTS LIST9-17Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 547 30 pF ±5% 250V mica 510-0220-300 (400-430 M

PARTS LIST9-18Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERC 597 .018 µF ±10% X7R 0805 chip 510-3605-183 C 5

PARTS LIST9-19Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERU 502 High side current sense 544-2039-002 U 503

PARTS LIST9-20Month 2000 Part No. 001-2004-601S Y MB O L PA RT NUMBER DESCRIPTION NUMBERU 601 Dual op amp SO-8 544-2019-004 U 651 Dual op

PARTS LIST9-21Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBER800W POWER SUPPLY MAIN BOARDPART NO. 023-2000-810A 002 P

PARTS LIST9-22Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERC 198 1 µF 35V tantalum SMD 510-2628-109 C 199 6.8 µF 35

PARTS LIST9-23Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERFH102 Fuse clip 534-1007-001 HW100 Cam5 x 3.795 sil-pa

PARTS LIST9-24Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERR 126 10 ohm ±5% 1206 SMD 562-0115-100 R 127 1.27k ohm ±

PARTS LIST9-25Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERR 223 13k ohm ±5% 1206 SMD 569-0115-133 R 224 Zero ohm ±

11-1 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . .1-21-2 ACTIVE REPEATER ALARMS . . . . . . . . . . . .1-62-1 OUTPUT VOLTAGES . .

PARTS LIST9-26Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERU 112 PWM current mode ML4823 544-2002-034 U 113 PWM cur

PARTS LIST9-27Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERCR115 Switching diode SOT-23 523-1504-002 CR116 3A ultra

PARTS LIST9-28Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERR 157 15k ohm ±1% 1206 SMD 569-0111-301 R 158 1k ohm ±1% 1206 SMD 5

PARTS LIST9-29Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERP 001 64-pin DIN male right angle 515-7082-101 P 002 2-p

PARTS LIST9-30Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERY 001 10 MHz crystal HC-18 521-0010-000 Y 002 11.059 MHz

PARTS LIST9-31Month 2000 Part No. 001-2004-601S Y M B O L PA R T NUMBER DESCRIPTION NUMBERC 184 .01 µF ±10% X7R chip 510-3606-103 C 185 .01

PARTS LIST9-32Month 2000 Part No. 001-2004-601S Y M B O L PA R T NUMBER DESCRIPTION NUMBERC 287 300 pF ±5% NPO 1206 510-3602-301 C 288 300

PARTS LIST9-33Month 2000 Part No. 001-2004-601S Y M B O L PA R T NUMBER DESCRIPTION NUMBERR 126 100k ohm ±5% 1206 SMD 569-0115-104 R 127 47

PARTS LIST9-34Month 2000 Part No. 001-2004-601S Y M B O L PA R T NUMBER DESCRIPTION NUMBERR 226 10k ohm ±5% 1206 SMD 569-0115-103 R 227 10k

PARTS LIST9-35Month 2000 Part No. 001-2004-601S Y M B O L PA R T NUMBER DESCRIPTION NUMBERS 100 8-pos DIP switch 583-5002-008 S 101 4-pos D

2

PARTS LIST9-36Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERC 534 100 pF ±5% NPO 1206 510-3602-101 C 535 100 pF ±5%

PARTS LIST9-37Month 2000 Part No. 001-2004-601SYMBOL PART NUMBER DESCRIPTION NUMBERR 523 10k ohm ±1% 1206 SMD 569-0111-401 R 524 4.7k ohm ±

PARTS LIST9-38Month 2000 Part No. 001-2004-601

10-1Month 2000 Part No. 001-2004-601SCHEMATICS AND COMPONENT LAYOUTSSECTION 10 SCHEMATICS AND COMPONENT LAYOUTSTRANSISTORSTRANSISTORSPart Number Bas

SCHEMATICS AND COMPONENT LAYOUTS10-2Month 2000 Part No. 001-2004-601Figure 10-3 REPEATER REAR VIEWFigure 10-4 REPEATER FRONT VIEWFigure 10-5 REP

SCHEMATICS AND COMPONENT LAYOUTS10-3Month 2000 Part No. 001-2004-601Figure 10-6 INPUT/OUTPUT ALARM INTERCONNECTFigure 10-7 RF INTERCONNECT

SCHEMATICS AND COMPONENT LAYOUTS10-4Month 2000 Part No. 001-2004-601Figure 10-8 BACKPLANE INTERCONNECT

SCHEMATICS AND COMPONENT LAYOUTS10-5Month 2000 Part No. 001-2004-601Figure 10-9 RECEIVE VCOFigure 10-10 TRANSMIT VCO

SCHEMATICS AND COMPONENT LAYOUTS10-6Month 2000 Part No. 001-2004-601Figure 10-11 RF INTERFACE BOARD COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-7Month 2000 Part No. 001-2004-601Figure 10-12 RF INTERFACE BOARD SCHEMATIC

1-1Month 2000Part No. 001-2004-601INTRODUCTION AND OPERATIONSECTION 1 INTRODUCTION AND OPERATION1.1 SCOPE OF MANUALThis service manual provides inst

SCHEMATICS AND COMPONENT LAYOUTS10-8Month 2000 Part No. 001-2004-601Figure 10-13 RECEIVER COMPONENT LAYOUT (COMP SIDE)

SCHEMATICS AND COMPONENT LAYOUTS10-9Month 2000 Part No. 001-2004-601Figure 10-14 RECEIVER SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-10Month 2000 Part No. 001-2004-601Figure 10-15 EXCITER COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-11Month 2000 Part No. 001-2004-601Figure 10-16 EXCITER SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-12Month 2000 Part No. 001-2004-601Figure 10-17 110W POWER AMPLIFIER COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-13Month 2000 Part No. 001-2004-601Figure 10-18 110W POWER AMPLIFIER SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-14Month 2000 Part No. 001-2004-601Figure 10-19 FORWARD/REVERSE POWER COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-15Month 2000 Part No. 001-2004-601Figure 10-20 FORWARD/REVERSE POWER SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-16Month 2000 Part No. 001-2004-601Figure 10-21 MAIN PROCESSOR CARD COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-17Month 2000 Part No. 001-2004-601Figure 10-22 MAIN PROCESSOR CARD SCHEMATIC (1 OF 2)

1-2Month 2000 Part No. 001-2004-601

INTRODUCTION AND OPERATION1-2Month 2000Part No. 001-2004-601mum system efficiency. Each radio is assigned a Home Channel which sends system commands

SCHEMATICS AND COMPONENT LAYOUTS10-18Month 2000 Part No. 001-2004-601Figure 10-23 MAIN PROCESSOR CARD SCHEMATIC (2 OF 2)

SCHEMATICS AND COMPONENT LAYOUTS10-19Month 2000 Part No. 001-2004-601Figure 10-24 MAIN AUDIO CARD COMPONENT LAYOUT (OPP COMP SIDE)

SCHEMATICS AND COMPONENT LAYOUTS10-20Month 2000 Part No. 001-2004-601Figure 10-25 MAIN AUDIO CARD COMPONENT LAYOUT (COMPONENT SIDE)

SCHEMATICS AND COMPONENT LAYOUTS10-21Month 2000 Part No. 001-2004-601Figure 10-26 MAIN AUDIO CARD SCHEMATIC (1 OF 3)

SCHEMATICS AND COMPONENT LAYOUTS10-22Month 2000 Part No. 001-2004-601Figure 10-27 MAIN AUDIO CARD SCHEMATIC (2 OF 3)

SCHEMATICS AND COMPONENT LAYOUTS10-23Month 2000 Part No. 001-2004-601Figure 10-28 MAIN AUDIO CARD SCHEMATIC (3 OF 3)

SCHEMATICS AND COMPONENT LAYOUTS10-24Month 2000 Part No. 001-2004-601Figure 10-29 INTERFACE ALARM CARD COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-25Month 2000 Part No. 001-2004-601Figure 10-30 INTERFACE ALARM CARD SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-26Month 2000 Part No. 001-2004-601Figure 10-31 BACKPLANE COMPONENT LAYOUT (CARD SIDE)

SCHEMATICS AND COMPONENT LAYOUTS10-27Month 2000 Part No. 001-2004-601Figure 10-32 BACKPLANE COMPONENT LAYOUT (CABLE SIDE)

INTRODUCTION AND OPERATION1-3Month 2000Part No. 001-2004-6011.7 PRODUCT WARRANTYThe warranty statement for this transceiver is available from your pro

SCHEMATICS AND COMPONENT LAYOUTS10-28Month 2000 Part No. 001-2004-601Figure 10-33 BACKPLANE SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-29Month 2000 Part No. 001-2004-601Figure 10-34 800W POWER SUPPLY COMPONENT LAYOUT (OPP COMP SIDE)

SCHEMATICS AND COMPONENT LAYOUTS10-30Month 2000 Part No. 001-2004-601Figure 10-35 800W POWER SUPPLY COMPONENT LAYOUT (COMPONENT SIDE)

SCHEMATICS AND COMPONENT LAYOUTS10-31Month 2000 Part No. 001-2004-601Figure 10-36 800W POWER SUPPLY SCHEMATIC (1 OF 2)

SCHEMATICS AND COMPONENT LAYOUTS10-32Month 2000 Part No. 001-2004-601Figure 10-37 800W POWER SUPPLY SCHEMATIC (2 OF 2)

SCHEMATICS AND COMPONENT LAYOUTS10-33Month 2000 Part No. 001-2004-601Figure 10-38 AC FILTER BOARD COMPONENT LAYOUTFigure 10-39 AC SUPPLY FILTER BO

SCHEMATICS AND COMPONENT LAYOUTS10-34Month 2000 Part No. 001-2004-601Figure 10-40 BATTERY BACK-UP COMPONENT LAYOUT

SCHEMATICS AND COMPONENT LAYOUTS10-35Month 2000 Part No. 001-2004-601Figure 10-41 BATTERY BACK-UP SCHEMATIC

SCHEMATICS AND COMPONENT LAYOUTS10-36Month 2000 Part No. 001-2004-601Figure 10-42 POWER SUPPLY FILTER BOARD COMPONENT LAYOUTFigure 10-43 POWER SUP

1-1Month 2000Part No. 001-2004-601INDEX Symbols 1-10, 1-11, 2-6, 2-7, 3-1Numerics110V AC Operation 2-1220V AC Operation 2-1AAC Power 2-1Accessories

INTRODUCTION AND OPERATION1-4Month 2000Part No. 001-2004-601ence this number on the Factory Repair Request Form sent with the unit. The repair lab wi

1-2Month 2000Part No. 001-2004-601Hang Indicator 1-7Mobile Call Indicator 1-7Power Indicator 1-7Power Supply On/Off Switch 1-7Switch Call Indicator 1-

1-3Month 2000Part No. 001-2004-601Exciter 4-11Full Repeater 4-11Power Amplifier 4-11Receiver 4-11Transfer 4-7Read Setup Parameters 4-7Write Setup Para

1-4Month 2000Part No. 001-2004-601

INTRODUCTION AND OPERATION1-5Month 2000Part No. 001-2004-601Figure 1-4 REPEATER CARDSIACMACMPCJ502J501J500GRNYELYELREDREDPROGJACKRESETON/OFF/VOLLOCA

INTRODUCTION AND OPERATION1-6Month 2000Part No. 001-2004-601Table 1-2 ACTIVE REPEATER ALARMSAlarm No. DS1 CR3 CR4 Definition012345678910111213141516

INTRODUCTION AND OPERATION1-7Month 2000Part No. 001-2004-6011.13.3 MAIN AUDIO CARD (MAC)Refer to Figure 1-4.External Speaker JackJ104 provides repeat

INTRODUCTION AND OPERATION1-8Month 2000Part No. 001-2004-6011.13.5 POWER SUPPLYThe 2000 Series Repeater Power Supply is a quad output 800W supply wit

INTRODUCTION AND OPERATION1-9Month 2000Part No. 001-2004-601Repeater Connection To SwitchThe repeaters can be located at the same Locality as the Swit

INTRODUCTION AND OPERATION1-10Month 2000Part No. 001-2004-601• Data can be modulated as in '1' and then sent over the voice path using a Bla

INTRODUCTION AND OPERATION1-11Month 2000Part No. 001-2004-6011.14.11 TELEPHONE INTERCONNECT AND DATA TRANSMISSIONMobile transceivers can be used to a

1-3Month 2000 Part No. 001-2004-601VIKING® VXUHF LTR-Net™ REPEATERPART NO. 242-20x4-613Copyright© 1999 by E.F. Johnson CompanyE.F. Johnson Company des

INTRODUCTION AND OPERATION1-12Month 2000Part No. 001-2004-601Unique IDs also permit individual mobile units to be called using the special calls descr

INTRODUCTION AND OPERATION1-13Month 2000Part No. 001-2004-601SPECIFICATIONSGENERAL1Frequency Ranges 380-400, 400-430, 430-470, 470-512, 480-520 MHz Tr

INTRODUCTION AND OPERATION1-14Month 2000Part No. 001-2004-601

2-1Month 2000Part No. 001-2004-601INSTALLATIONSECTION 2 INSTALLATION2.1 INTRODUCTIONInformation in this section tells how to set up the repeater for

INSTALLATION2-2Month 2000Part No. 001-2004-601The 120V AC cord is a standard 3-wire grounded cord used with a standard AC wall outlet. The outlet mus

INSTALLATION2-3Month 2000Part No. 001-2004-6012.6.1 AC INPUT REQUIREMENTSAC Input Voltage: 100-240V ACLine Frequency: 50-60 HzAC In-rush: 60A maximum

INSTALLATION2-4Month 2000Part No. 001-2004-6012.7 GROUNDINGCAUTIONPROPER SITE GROUNDING AND LIGHTNING PROTECTION ARE VERY IMPORTANT TO PRE-VENT PERMAN

INSTALLATION2-5Month 2000Part No. 001-2004-601• With surge protectors, ensure that ground wires go directly to ground, and not through other equipment

INSTALLATION2-6Month 2000Part No. 001-2004-6012.9 REPEATER DATA BUS INSTALLATIONThe repeaters are interconnected by a balanced line High-Speed Data Bu

INSTALLATION2-7Month 2000Part No. 001-2004-6012.10 CONNECTING RECEIVE AND TRANSMIT ANTENNASReceive and Transmit antenna connector loca-tions are shown

1-4Month 2000 Part No. 001-2004-601

INSTALLATION2-8Month 2000Part No. 001-2004-6012. A separate RS-232 serial link can be used.Figure 2-10 MAC DIP SWITCH SETTINGS FOR RS-232 LINK3. The

INSTALLATION2-9Month 2000Part No. 001-2004-601Figure 2-14 SINGLE REPEATER INSTALLATIONFigure 2-15 TWO REPEATER INSTALLATIONMPC SWITCHESON21876543O

INSTALLATION2-10Month 2000Part No. 001-2004-601Figure 2-16 THREE OR MORE REPEATERS INSTALLATIONMPC SWITCHESMPC SWITCHESMPC SWITCHESONONS3S2218765432

3-1Month 2000 Part No. 001-2004-601SOFTWARESECTION 3 SOFTWARE3.1 INTRODUCTION3.1.1 PROGRAMMING SETUPThe following items are required to program the

SOFTWARE3-2Month 2000 Part No. 001-2004-6013.1.3 PROGRAMMING CABLESThe cables from the repeater to the computer are not included.Figure 3-2 LAPTOP

SOFTWARE3-3Month 2000 Part No. 001-2004-6013.2 MISCELLANEOUS SOFTWARE INFORMA-TION3.2.1 MINIMUM FREE MEMORY REQUIREDApproximately 2MB of free memory

SOFTWARE3-4Month 2000 Part No. 001-2004-601Figure 3-4 PROGRAMMING FLOWCHARTFILEUTILITIES New* Ctrl+NSelect Repeater*Repeater Information*EDITLocalit

4-1Month 2000Part No. 001-2004-601PULL DOWN MENUSSECTION 4 PULL DOWN MENUS4.1 MENU DISPLAYSThe menus available are listed at the top of the screen (

PULL DOWN MENUS4-2Month 2000Part No. 001-2004-6014.3 EDITThis menu is used to create new files and set or change the repeater operating parameters. T

PULL DOWN MENUS4-3Month 2000Part No. 001-2004-601Figure 4-7 ADJACENT LOCALITY DATA• Select the Locality ID number for the Locality cur-rently being

TABLE OF CONTENTS11 INTRODUCTION AND OPERATION1.1 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PULL DOWN MENUS4-4Month 2000Part No. 001-2004-6014.3.3 REPEATER INFORMATIONThis menu selection has an equivalent icon in the toolbar. This menu sele

PULL DOWN MENUS4-5Month 2000Part No. 001-2004-601Figure 4-10 INPUT ALARMSInput AlarmsThere are four Input Alarms that can be activated by external d

PULL DOWN MENUS4-6Month 2000Part No. 001-2004-601Cross ReferenceThe cross reference screen selects the Output Alarm that is activated by each Input Al

PULL DOWN MENUS4-7Month 2000Part No. 001-2004-6014.3.4 DELETE REPEATERSelect the Repeater number to delete from this Locality and press the Delete bu

PULL DOWN MENUS4-8Month 2000Part No. 001-2004-6014.5 HARDWAREFigure 4-17 HARDWARE MENUFigure 4-18 HSDB MONITOR4.5.1 HSDB MONITORThis menu selecti

PULL DOWN MENUS4-9Month 2000Part No. 001-2004-6014.5.3 RF DATAFigure 4-20 RF DATAThe RF Line Monitor window shows the state of the lines (see Figur

PULL DOWN MENUS4-10Month 2000Part No. 001-2004-6014.5.6 MODE SELECTThe Mode Select window places the repeater either in the Normal mode, Test mode or

PULL DOWN MENUS4-11Month 2000Part No. 001-2004-6014.6.1 EXCITERThis menu selection walks through the Exciter alignment windows. Refer to Section 7.3

PULL DOWN MENUS4-12Month 2000Part No. 001-2004-6014.8.2 TOOLBARThe toolbar may be detached (floating) from the main window by dragging the toolbar to

5-1Month 2000 Part No. 001-2004-601REPEATER PROGRAMMINGSECTION 5 REPEATER PROGRAMMING5.1 OVERVIEWThe information in this section will assist the use

TABLE OF CONTENTS (CONT.)22.7 GROUNDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REPEATER PROGRAMMING5-2Month 2000 Part No. 001-2004-6015.2.1 GENERAL PARAMETERSThese repeater parameters select the frequency band for the repeater a

6-1Month 2000 Part No. 001-2004-601CIRCUIT DESCRIPTIONSECTION 6 CIRCUIT DESCRIPTION6.1 RECEIVER6.1.1 INTRODUCTIONThe receiver is a double conversio

CIRCUIT DESCRIPTION6-2Month 2000 Part No. 001-2004-601Figure 6-1 12.5 kHz IF RECEIVER BLOCK DIAGRAMBANDPASS FILTERL102/L103/L104A201RF INQ101BANDPAS

CIRCUIT DESCRIPTION6-3Month 2000 Part No. 001-2004-601Wideband Audio AmplifierU204B amplifies the detected audio and data sig-nal. R244/R245/R246 set

CIRCUIT DESCRIPTION6-4Month 2000 Part No. 001-2004-601Second Mixer/DetectorAs shown in Figure 6-2, U201 contains second oscillator, second mixer, limi

CIRCUIT DESCRIPTION6-5Month 2000 Part No. 001-2004-6016.1.8 BUFFERA cascode amplifier formed by Q410/Q411 pro-vides amplification and isolation betwe

CIRCUIT DESCRIPTION6-6Month 2000 Part No. 001-2004-601The VCO frequency of A401 is controlled by a DC voltage produced by integrating the phase detec-

CIRCUIT DESCRIPTION6-7Month 2000 Part No. 001-2004-6016.1.10 BUFFER AMPLIFIERA cascode amplifier formed by Q401 and Q402 provides amplification and a

CIRCUIT DESCRIPTION6-8Month 2000 Part No. 001-2004-6016.1.15 FIRST AND SECOND INJECTION AM-PLIFIERSU303 provides the +12V source for these ampli-fier

CIRCUIT DESCRIPTION6-9Month 2000 Part No. 001-2004-601With reference to the ground on the Exciter, the 3.5V reference stability is maintained by U126B

TABLE OF CONTENTS (CONT.)34.6 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CIRCUIT DESCRIPTION6-10Month 2000 Part No. 001-2004-601The synthesizer contains the R (reference), N, and A counters, phase and lock detectors and cou

CIRCUIT DESCRIPTION6-11Month 2000 Part No. 001-2004-6016.2.7 BUFFER AMPLIFIERA cascode amplifier formed by Q406 and Q407 provides amplification and a

CIRCUIT DESCRIPTION6-12Month 2000 Part No. 001-2004-601 line on the input and Q503 has a half-wave on the out-put. These T-lines are used to drive th

CIRCUIT DESCRIPTION6-13Month 2000 Part No. 001-2004-6016.4.1 POWER CONNECTORThe power supply is connected to the RF Inter-face Board when the RF modu

CIRCUIT DESCRIPTION6-14Month 2000 Part No. 001-2004-601Pins 15-18 UNUSED Pin 19 RF MUX3 INHThe Multiplexer-3 Inhibit (U104, pin 6) is a CMOS input f

CIRCUIT DESCRIPTION6-15Month 2000 Part No. 001-2004-601Pin 31 GROUNDPin 31 carries ground current between the RFIB and Chassis Backplane.Pins 32-36 UN

CIRCUIT DESCRIPTION6-16Month 2000 Part No. 001-2004-601WO 124 RF OUT 3This capacitive feedthrough pin is a voltage source that is a function of the ou

CIRCUIT DESCRIPTION6-17Month 2000 Part No. 001-2004-601Pin 13 TX MODThe audio from the MAC in the Controller pro-cesses a number of inputs to the stat

CIRCUIT DESCRIPTION6-18Month 2000 Part No. 001-2004-601Pin 13 RX INJThis pin is the power sense for the Receiver injection. It is a linear voltage so

CIRCUIT DESCRIPTION6-19Month 2000 Part No. 001-2004-601Figure 6-7 RF INTERFACE BOARD BLOCK DIAGRAMVREF EXWO135P102P101P105P104P103PWR CNTRLU101Q102-

TABLE OF CONTENTS (CONT.)46.2 EXCITER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CIRCUIT DESCRIPTION6-20Month 2000 Part No. 001-2004-6016.5 800W POWER SUPPLYWARNINGThis power supply contains voltage potentials greater than 400V. C

CIRCUIT DESCRIPTION6-21Month 2000 Part No. 001-2004-601Figure 6-8 POWER SUPPLY BLOCK DIAGRAMDC INRT101, RT102L107U102T103T104Q108Q101T105RAMPFBPFCI

CIRCUIT DESCRIPTION6-22Month 2000 Part No. 001-2004-601In operation, the power MOSFETs Q116, Q118 are on for approximately one-third of the period pro

CIRCUIT DESCRIPTION6-23Month 2000 Part No. 001-2004-6016.5.6 +15V CONVERTERThe input voltage to this "Buck" DC/DC con-verter is the main +2

CIRCUIT DESCRIPTION6-24Month 2000 Part No. 001-2004-601The majority of the voltage and current limits are set with fixed value components in the power

CIRCUIT DESCRIPTION6-25Month 2000 Part No. 001-2004-601 Figure 6-9 NO LOAD CHARGE VOLTAGE vs. TEMPERATURE6.6.3 REVERSE BATTERY PROTECTIONTo obtain

CIRCUIT DESCRIPTION6-26Month 2000 Part No. 001-2004-6016.6.6 BBM FAN CONTROLThe voltage supply to the thermal measurement circuit is taken from the 2

CIRCUIT DESCRIPTION6-27Month 2000 Part No. 001-2004-6016.8 EXTERNAL CONNECTOR BOARDThe external connector board (A10) is the interface for the alarm

CIRCUIT DESCRIPTION6-28Month 2000 Part No. 001-2004-6016.9 MAIN PROCESSOR CARD6.9.1 INTRODUCTIONThe Main Processor Card (MPC) connects to the compute

CIRCUIT DESCRIPTION6-29Month 2000 Part No. 001-2004-601• Flash Memory, RAM, non-volatile EEPROM.• I/O chip select to allow the addressing of data latc

TABLE OF CONTENTS (CONT.)5S2/S3 HSDB SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CIRCUIT DESCRIPTION6-30Month 2000 Part No. 001-2004-601Microprocessor U13 is an 8052 that uses external EPROM (Erasable Programmable Read Only Mem-ory

CIRCUIT DESCRIPTION6-31Month 2000 Part No. 001-2004-601bus indicates which repeaters are in use and also which mobiles are using the system. This inf

CIRCUIT DESCRIPTION6-32Month 2000 Part No. 001-2004-6016.10 MAIN AUDIO CARD6.10.1 INTRODUCTIONThis control card stores the information required to op

CIRCUIT DESCRIPTION6-33Month 2000 Part No. 001-2004-601From the audio amplifier the signal is fed to a high-pass filter consisting of U122B/C/D. This

CIRCUIT DESCRIPTION6-34Month 2000 Part No. 001-2004-601When the received audio must be routed to the backplane (i.e. for other cards), Receive Voice G

CIRCUIT DESCRIPTION6-35Month 2000 Part No. 001-2004-601level of the amplifier is adjusted by a level control. The output of U130A is applied to anoth

CIRCUIT DESCRIPTION6-36Month 2000 Part No. 001-2004-601Pin 15 MREQA memory request line operates in conjunction with the Read/Write lines. These prov

CIRCUIT DESCRIPTION6-37Month 2000 Part No. 001-2004-601Pin 10 EXT REQ1This input provides for external requests from optional equipment.Pin 11 EXT MOD

CIRCUIT DESCRIPTION6-38Month 2000 Part No. 001-2004-6016.11 INTERFACE ALARM CARDThis card utilizes the information required to operate the alarms desi

CIRCUIT DESCRIPTION6-39Month 2000 Part No. 001-2004-601Standard 12V/24V AC control transformer out-puts can be accepted as well as DC voltages. This