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Technalogix Ltd

TAVD-500 Transmitter

VI-7

The control system monitors the temperature of a specific location of the heat sync. If this
temperature exceeds a threshold the control system will turn the RF output level down until this
temperature level is reached. The RF output level will automatically be brought back when it is
safe to do so.

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Содержание TAVD-500

Страница 1: ...TAVD 500 POWER AMPLIFIER ...

Страница 2: ...understand that a capable and confident user will get the most out of our product and we have made every attempt to educate readers of all technical levels If there is something that is not clear or you require further information please do not hesitate to contact us and we ll be glad to help out Technalogix Ltd 4 8021 Edgar Industrial Place Red Deer Alberta Canada T4P 3R3 Phone 403 347 5400 Fax 4...

Страница 3: ...TEM VI 1 CONTROL BOARD OVERVIEW INSIGHT VI 1 USER INTERFACE MODULE VI 2 COUPLER CONDITIOING MODULE VI 3 RF CONDITIONING MODULE VI 3 TEMPERATURE SENSOR MODULE VI 3 TXNET MODULE VI 3 REMOTE PORT VI 4 FAULT SHUTDOWN VI 5 BILL OF MATERIALS VI 6 SCHEMATICS VI 12 SECTION VII MECHANICAL SECTION VII 1 SECTION VIII INSTALLATION VIII 1 BUILDING RECOMMENDATIONS VIII 1 HEATING AND COOLING REQUIREMENTS VIII 2 ...

Страница 4: ...INITIAL HOOK UP VIII 13 SECTION IX OPERATING PROCEDURE IX 1 SECTION X MAINTENANCE AND TROUBLESHOOTING X 1 TROUBLESHOOTING X 2 ...

Страница 5: ...onic equipment DOCUMENTATION Read retain and follow instructions before operating the equipment There is a lot of useful information in the manual and besides we spent a lot of time writing it ENVIRONMENT To reduce the risk of fire or electric shock do not expose this equipment to rain moisture or rye and sodas at the company Christmas party Refer all servicing to qualified service personnel SERVI...

Страница 6: ...urn chars the flesh and frequently places the victim in a state of shock accompanied by respiratory paralysis Respiratory paralysis can cause death by suffocation within seconds It is imperative that the approved methods of artificial respiration are initiated immediately and continue until the victim s breathing is normal A muscular spasm of unconsciousness may render the victim unable to break f...

Страница 7: ...is is because all of the RF transistors used in the individual amplifier pallets are fabricated with LDMOS Laterally Diffused Metal Oxide Semiconductor technology Nice and linear yes but they do not like to make any RF power when their supply voltages are not within a specific range When you first turn your power amplifier on or off the DC power supply s output voltage may take a while to stable o...

Страница 8: ...f or in connection with the equipment or its use thereof Technalogix does not assume responsibility for injury or damage resulting from the practices of untrained or unqualified personnel in the handling of this equipment Technalogix Ltd warranty does not include misuse neglect or accident incorrect wiring and or improper installation unauthorized repairs modifications or use in violation of instr...

Страница 9: ... web site www technalogix ca for the RMA form Service and fill it out Either fax it to us or email to us Package equipment carefully for prepaid shipment to Technalogix Include a written description of the problem experienced a copy of the original invoice establishing warranty status and the RMA Technalogix reserves the right to make revisions in current production of the equipment and assumes no...

Страница 10: ...e instance to which the waiver is directed Ordering Information All orders must be in writing and or accompanied by a PO 50 down payment is required with all orders No orders are considered an order until the down payment has been paid Order Confirmation A purchase order is not binding on Seller until Buyer has received Seller s order confirmation or acknowledgement Pricing Policy Prices for produ...

Страница 11: ... work terminated in accordance with generally accepted accounting principle together with cancellation charges Orders for standard product may be changed by Buyer with no penalty to the Buyer provided that Buyer provides Technalogix notification at least 30 days prior to the scheduled ship date Order changes received within 30 days of the scheduled ship date may be subject to an order change charg...

Страница 12: ...ny delay in delivery or failure to deliver which is due to any cause beyond Seller s control including without limitation acts of nature unavailability of supplies or sources of energy riots wars fires floods epidemics lockouts strikes and slowdowns delays in delivery by supplies or acts or omissions of the Buyer The Buyer shall be liable for stage charges including but not limited to all third pa...

Страница 13: ...o monitor forward and reflected RF power and DC voltage Microcontroller based monitoring and control ensures amplifier will never be overdriven and high VSWR will not damage amplifier AC circuit breaker on back panel to eliminate replacement of fuses All aluminium enclosure maintains power amplifier s light weight Simple design using commonly available parts ensures reliable operation ...

Страница 14: ...lifier is a modular solid state system comprised a TAVD 500 500 watt broadcast amplifier utilizing readily available RF components wherever possible thus enhancing the serviceability of the equipment Each TAVD 500 is comprised of a VHFTV 25 and a VHFTV 200 driver pallet and 4 VHFTV 400 final pallets that are combined to create 500 watts rms 8VSB power The amplifier modules are stable for high reli...

Страница 15: ...FILTER TAVD 500 AMPLIFIER Modulator or Processor External power supply RF Out TAVD 500 BLOCK DIAGRAM Date May 21 2009 Page 1 of 1 Rev ID ...

Страница 16: ...r and to help buffer any transients that may come into the power amplifier After attenuation the signal gets preamplified through the two driver pallets before the signal gets split into 4 signals for final amplification The output of the 4 final amplifier pallets get combined and passes through an isolator Finally the signal passes through a dual directional coupler for monitoring purposes before...

Страница 17: ...5dB typical To Wattmeter and Antenna VHFTV 400H FINAL AMPLIFIER PALLET VHFTV 400H FINAL AMPLIFIER PALLET 4 WAY SPLIITER 4 WAY COMBINER RF INPUT RF OUT Directional C TERMINATION 50 OHM ATTENUATION TAVD 500 Power Amplifier Block Diagram Date May 21 2009 Page 1 of 1 Rev ID ...

Страница 18: ... with the shipment in addition to being kept on file at Technalogix Physical Characteristics Power Requirements Power Supply 220 VAC 11 AAC Operating Temperature 0 50 C Dimensions TAVD 500 Power Amplifier W 19 flange 17 encl D 25 H 101 2 6U Filter W 19 flange 17 encl D 25 H 8 5U Power Supply W 19 flange 17 encl D 25 H 5 1 4 3U ...

Страница 19: ...llet This resistance is 0 01 ohms providing a 10mV per ampere ratio The VHFTV 200 pallet is a two stage ultra linear class A linear pallet The VHFTV 200 L and H pallets have a typical gain of 20dB and the VHFTV 200 H has a typical gain of 18dB These pallets draw no more than 4 Adc total drain current the exact bias and drain currents of your system are found in the spec sheet supplied with each ma...

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Страница 23: ... data for monitoring purposes Output power should be set following the operating procedure found elsewhere in this manual The directional coupler has a typical insertion loss of 0 5dB and its Type N connectors can handle 1 500 watts peak while the 7 16 DIN connectors can handle over 3 000 watts peak Isolator The power amplifier pallets are protected in part by the isolator located in the power amp...

Страница 24: ... The 2 power supplies found in the power supply enclosure are Mean Well RSP 1500 27 The switching power supplies are fully protected against short circuit and output overload Short circuit protection is a cycling type power limit The internal AC fuse is designed to blow only on a catastrophic failure in the unit the fuse does not blow on overload or short circuit The thermal shutdown automatically...

Страница 25: ...mote ON OFF control ƤProtections Short circuit Overload Over voltage Over temp ƤForced air cooling by built in DC fan Ƥ3 years warranty AC input voltage range DC adjustment range Overload protection Over voltage protection Setup rise hold up time Withstand voltage Working temperature Safety standards EMC standards Packing 90 264VAC 127 370VDC 30 10 rated output voltage 105 135 constant current lim...

Страница 26: ... unit number and the fault will be displayed on the front panel i e PA2 High Reflected Power During the alarm situation only the error screen will be displayed while the other two units continue to run normally The alarm buzzer will sound different on PA1 PA2 and PA3 User Interface Module The primary function of the User Interface module is as the name suggests providing the user interface for the...

Страница 27: ...2 10 position to go to the pallets As the current passes through shunt resistors R117 R118 R120 R121 R123 R124 R126 R127 R129 R130 the voltage drop is monitored by U101 through U105 buffered by U106 through U108 and sent to the analog to digital converter integrated into the microcontroller There are up to five circuits for which the current is monitored by this system As the DC supply passes thro...

Страница 28: ... amplifier Its main function is to act as a variable attenuator so that the control system can add attenuation to the input of the amplifier in order to limit the output power of the transmitter The RF signal comes in to the RF Conditioning module through J301 before it passes through a fixed attenuator Pi network made up of R301 R302 and R303 The signal then passes through the digitally controlle...

Страница 29: ... version which does not have external enclosures aside from the modulator The DB 25 connector for the remote port J602 is attached to the TxNET module The signals travelling through this port are connected to the Coupler Conditioning module through J601 and J603 The TxNET module also includes up to three straight through RJ45 connection pairs J604 to J605 J606 to J607 and J608 to J609 These connec...

Страница 30: ...in Number Description 1 Ground 2 Forward power sample1 3 Reflected power sample1 4 Carrier off2 5 Carrier on2 6 Increase carrier level level must have been decreased 2 7 Decrease carrier level 1dB increments 2 9 Reset2 11 High temperature flag3 12 High VSWR flag3 13 Amplifier overdriven flag3 14 5Vdc 15 3 3Vdc 16 Ground 17 Ground Notes 1 Analog output with voltage ranging from 0 to 5Vdc 2 TTL leve...

Страница 31: ...t signal to the PA It will continue attenuating this signal until the RF output is below 115 total power If Reflected Power has been detected at the output of the transmitter the unit will shut down for 4 seconds This occurs 5 times If the fault is clear the PA enables itself If the fault still exists after 5 times the PA disables the carrier for 10 minutes and cycles until the fault clears During...

Страница 32: ... the temperature of a specific location of the heat sync If this temperature exceeds a threshold the control system will turn the RF output level down until this temperature level is reached The RF output level will automatically be brought back when it is safe to do so ...

Страница 33: ...Technalogix Ltd TAVD 500 Transmitter VI 8 Monitor and Control System Insight Bills of Materials ...

Страница 34: ...0805 14 R160 1 RES 4662 RESISTOR 1 4KΩ SMD 0805 15 R161 1 RES 6312 RESISTOR 27KΩ SMD 0805 16 R162 1 RES 5512 RESISTOR 6 2KΩ SMD 0805 17 R157 1 RES 1575 RESISTOR 4 7Ω SMD 2010 18 R117 R118 R120 R121 R123 R124 R126 R127 R129 R130 10 RES 0086 RESISTOR 0 006Ω 1 1W SMD 2512 19 R159 1 POT 0843 POTENTIOMETER 10KΩ 4mm SMD 20 R102 R103 R105 R106 R108 R109 R111 R112 R114 R115 10 RES 2346 RESISTOR 20Ω 1W SMD...

Страница 35: ...rs 10 terminations bussed 5 SMD 2512 18 RN202 RN204 2 RES 4510 Resistor network 1kohm 8 resistors 10 terminations bussed 5 SMD 2512 19 VR201 VR202 2 POT 0841 Potentiometer 10kohm 11 turn 5mm top SMT 20 U201 1 ICT 56001 IC supervisor 2 7V internal pull up resistor open drain active low SOT 23 21 U202 1 ICT 32033 IC microcontroller 16 bit 16k X 8 program 48 I O flash 64 QFP 22 U203 1 ICT 12000 IC CA...

Страница 36: ...erminations bussed 5 SMD 2512 18 RN202 RN204 2 RES 4510 Resistor network 1kohm 8 resistors 10 terminations bussed 5 SMD 2512 19 VR201 VR202 2 POT 0841 Potentiometer 10kohm 11 turn 5mm top SMT 20 U201 1 ICT 56001 IC supervisor 2 7V internal pull up resistor open drain active low SOT 23 21 U202 1 ICT 32033 IC microcontroller 16 bit 16k X 8 program 48 I O flash 64 QFP 22 U203 1 ICT 12000 IC CAN trans...

Страница 37: ...stor thick film 1 1k 1 8W SMD 0805 9 R305 R306 R311 R312 R317 5 RES 4582 Resistor thick film 1 1 2k 1 8W SMD 0805 10 R307 R308 R313 R314 R318 5 RES 5802 Resistor thick film 1 10k 1 8W SMD 0805 11 U301 1 ICT 50003 IC 5 Bit Digital attenuator LSB 1 dB w Driver 20 SSOP 12 U302 U303 U304 3 ICT 36001 IC optoisolator dual transistor o p Vceo 30V SOG 050 8B 13 S301 1 SWT 0016 Switch dip low pro 1 pos Gol...

Страница 38: ...MD 0805 7 R304 R309 R310 R315 R316 R319 6 RES 4502 Resistor thick film 1 1k 1 8W SMD 0805 8 R305 R306 R311 R312 R317 5 RES 4582 Resistor thick film 1 1 2k 1 8W SMD 0805 9 R307 R308 R313 R314 R318 5 RES 5802 Resistor thick film 1 10k 1 8W SMD 0805 10 U301 1 ICT 50003 IC 5 Bit Digital attenuator LSB 1 dB w Driver 20 SSOP 11 U302 U303 U304 3 ICT 36001 IC optoisolator dual transistor o p Vceo 30V SOG ...

Страница 39: ...istor thick film 1 1k 1 8W SMD 0805 9 R305 R306 R311 R312 R317 5 RES 4582 Resistor thick film 1 1 2k 1 8W SMD 0805 10 R307 R308 R313 R314 R318 5 RES 5802 Resistor thick film 1 10k 1 8W SMD 0805 11 U301 1 ICT 50003 IC 5 Bit Digital attenuator LSB 1 dB w Driver 20 SSOP 12 U302 U303 U304 3 ICT 36001 IC optoisolator dual transistor o p Vceo 30V SOG 050 8B 13 S301 1 SWT 0016 Switch dip low pro 1 pos Go...

Страница 40: ... CAP 08402 CAPACITOR 100pF 50V 10 SMD 0805 6 L701 1 IND 0832 INDUCTOR 0 1uH 10 175mA 0 80ohm SMD 0805 7 J701 1 CON 31525 CONNECTOR header 0 1 3 position SMD 8 J702 1 CON 45021 CONNECTOR modular jack 8 8 R A shielded 9 S701 1 SWT 0016 SWITCH 1 position SPST SMD 10 1 PCB 180 PRINTED CIRCUIT BOARD FR4 0 062 Modified 11 13 08 Revision 1 10 Bill of Materials ASY 180B Circuit Temperature Sensor DC Filte...

Страница 41: ...0 1uF 50V 10 SMD 0805 3 C703 1 CAP 11502 CAPACITOR 0 001uF 1000pF 50V 10 SMD 0805 4 C705 1 CAP 08402 CAPACITOR 100pF 50V 5 SMD 0805 6 J702 1 CON 45021 CONNECTOR modular jack 8 8 R A shielded 7 1 PCB 180 PRINTED CIRCUIT BOARD FR4 0 062 Modified 11 13 08 Revision 1 10 Bill of Materials ASY 180A Circuit Temperature Sensor no DC filter ...

Страница 42: ... CAP 08402 CAPACITOR 100pF 50V 10 SMD 0805 5 L701 1 IND 0831 INDUCTOR 0 01uH 10 540mA 180mohm SMD 0805 6 J701 1 CON 31525 CONNECTOR header 0 1 3 position SMD 7 J702 1 CON 45021 CONNECTOR modular jack 8 8 R A shielded 8 S701 1 SWT 0016 SWITCH 1 position SPST SMD 9 1 PCB 180 PRINTED CIRCUIT BOARD FR4 0 062 Modified 11 13 08 Revision 1 10 Bill of Materials ASY180C Circuit Temperature Sensor w DC Filt...

Страница 43: ...Itrip 0 34A Vmax 60V SMD 2 J601 J603 2 CON 45020 Connector 8 8 mod jack shielded 7188VSANF THT 3 J602 1 CON 21000 Connector D sub 25 position female vertical PCB mount THT 4 PCB 1 PCB 206 PCB FR4 0 062 red solder mask white silk screen Modified 12 1 08 Circuit TxNET LP Bill of Materials ASY 206 Revision 1 10 ...

Страница 44: ...Technalogix Ltd TAVD 500 Transmitter VI 23 Insight System Schematics The following pages contain the schematics for the Insight system ...

Страница 45: ...101 see table SMBJ48A FM D101 SMBJ30A TV J101A J101D TAC 58V F104 see table V4 Cond 63V C104 100uF V4 Input ETQ P6F1R3LFA L104 SML LX1206GW D106 Green SML LX1206GW D108 Green SMBJ48A FM D103 SMBJ30A TV SMBJ48A FM D105 SMBJ30A TV SMBJ48A FM D107 SMBJ30A TV J101F GND IN SMBJ48A FM D109 SMBJ30A TV SML LX1206GW D110 Green ETQ P6F1R3LFA L105 V5 Input 63V C105 100uF V5 Cond TAC 58V F105 see table J101E ...

Страница 46: ... C114 0 1uF C111 0 1uF C112 0 1uF C115 0 1uF C116 0 1uF C120 0 1uF I4 Buff V4 Cond V4 Out J102D C124 0 1uF C119 0 1uF I3 Buff J102C V3 Out V3 Cond C121 0 1uF C125 0 1uF OPA2340UA U107A OPA2340UA U107B C122 0 1uF C123 0 1uF C126 0 1uF C127 0 1uF U101 INA168 R117 0 012 R118 0 012 R119 100k R122 100k R121 0 012 R120 0 012 R126 0 012 R127 0 012 R128 100k R125 100k R124 0 012 R123 0 012 A Sivacoe N Hen...

Страница 47: ... C135 0 1uF OPA2340UA U108B C134 0 1uF C133 0 1uF OPA2340UA U108A C132 0 1uF C130 0 1uF J102E V5 Out V5 Cond I5 Buff C131 0 1uF 3 3 Vdc L108 0 01uH C128 0 01uF C129 0 01uF MOCD211M U110 U105 INA168 R151 10k R150 10k R149 1k R148 300 R147 10k R146 10k R140 10k R141 10k R142 1k R143 1k R144 10k R145 10k R139 1k R138 1k R137 1k R136 1k R135 1k 68 1k FM R132 37 4k TV R133 3 3k R134 1k R131 100k R130 0...

Страница 48: ...P64 U112 3 3 Vdc I3 ADC I2 ADC I1 ADC I4 ADC I5 ADC V1 ADC Y101 6 00MHZ C146 30pF C147 30pF CAN CLK RESET 3 3 Vdc SOMI SIMO SCK CAN CS TCK TMS TDI TDO C143 0 1uF C144 0 1uF LCD D6 LCD D7 LCD D5 LCD D0 LCD D1 LCD D2 LCD D3 LCD D4 5 Vdc Pin3LCD Pin15LCD Pow uPC Nav uPC Sel uPC RN101 10k CANterm2 CANterm1 LED K LED A J104 LCD E LCD R W LCD RS LCD Vo LCD Vdd LCD Vss LED1 BkLtCtrl Buzzer tbd C145 L109 ...

Страница 49: ...TDO J105G CANH 1 CANL 1 RESET 3 3Vdc SOMI SIMO SCK CAN CS CAN CLK C149 0 01uF J106G CANterm1 CANterm2 3 3Vdc CANL 2 CANH 2 J105H J106H 5Vdc 3 3Vdc RESET RESET 2 5V 1 5V 2 3 3V 2 GND 2 GND 1 3 3V 1 J106E J105E J106A J105F J106F J105D J106D L110 0 01uH C148 0 01uF R152 100 R153 100k A Sivacoe N Hendrickson User Interface Module 1 03 ii Insight Control System Date November 13 2008 Page 5 of 6 Rev ID ...

Страница 50: ...13 Green C150 100uF RL101 G6L 1F 5Vdc Pin15LCD D115 5V LED D117 3 3V LED IN COM OUT U117 LM1117MP 3 3 S102 Littlefuse 1812L F107 Littlefuse 1812L F108 Buzzer VgenCond C158 22uF C157 22uF C156 22uF C162 1uF C161 0 1uF C160 22uF C159 22uF L112 33uH D118 DIODE C163 0 01uF FanOut J108 P1 P2 P3 P4 P5 P6 P7 P8 U118 LM2660M R156 10k R155 1k tbd R154 R158 430 BZ101 R157 4 7 R162 6 2k R161 27k R160 1 4k A ...

Страница 51: ...N1 ATEN Vcc 5 7 2 3 1 J201 4 DAC CS TDO TDI TMS TCK CAN CS SCK SIMO SOMI 3 3 Vdc RESET CAN CLK C207 33pF C206 33pF Y201 6 00MHZ RFL POW FWD POW 1 2 3 4 5 6 7 DIP SW7 S201 Vcc Reset GND U201 MCP130 450 XinP8 P7 A7P6 A6P5 A5P4 A4P3 A3P2 DVccP1 XoutP9 P10 P11 P1 0P12 P1 1P13 P14 P15 P16 MCLK P48 P47 P46 P45 P44 P43 P42 P41 P40 P39 P38 P37 P36 P35 P34 P33 P17 P18 P19 P20 P21 P2 2 P22 P23 P24 P25 P26 P...

Страница 52: ... P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 U204 SN65HV232 DP1 GNDP2 VccP3 RP4 P5 CANL P6 CANH P7 P8 U203 J203 7 CANH 1 CANL 1 RESET 3 3Vdc SOMI SIMO SCK CAN CS CAN CLK C215 0 01uF J204 7 CANterm1 CANterm2 CANL 2 CANH 2 J203 8 J204 8 RESET RESET 1 J203 1 L204 0 01uH C214 0 01uF J205 JTAG TCK TMS TDI TDO 3 3Vdc 0 R209 R210 100 A Sivacoe Coupler Conditioning 1 10 Insight Control System Da...

Страница 53: ...5 D207 D208 D209 J207 3 J206 3 C218 0 01uF L206 0 01uH C219 0 01uF C217 0 01uF C216 0 01uF L205 0 01uH RFL 3 3 FWD 3 3 J206 4 FWD GND FWD 5V J206 2 J206 1 FWD In RFL In J207 1 J207 2 J207 4 RFL GND RFL 5V 5Vdc FWD POW RFL POW 3 3 Vdc D203 D204 6 10 RN202 1k 4 10 RN202 1k 7 10 RN202 1k 1 10 RN202 1k 2 10 RN202 1k 3 10 RN202 1k 0 R213 0 R214 R211 1k R212 1k A Sivacoe Coupler Conditioning 1 10 Insigh...

Страница 54: ... 0 01uH C222 0 01uF P1 P2 P3 P4 P5 P6 P7 P8 U207 TLV5625 MOCD211M U210 R217 2 15k R215 2 15k 10 9 RN203 10k 10 8 RN203 10k 10 6 RN203 10k 10 7 RN203 10k 10 6 RN204 1k 10 7 RN204 1k 10 9 RN204 1k 10 8 RN204 1k 10 4 205 RN 10k 10 3 205 RN 10k 10 6 205 RN 10k 10 7 205 RN 10k 10 2 205 RN 10k 10 8 205 RN 10k 10 9 205 RN 10k 218 R 1k R219 1k 10 3 204 RN 1k 10 4 204 RN 1k 10 2 203 RN 10k 10 1 203 RN 10k ...

Страница 55: ...303 RF OUT RF 2 D302 C305 P1 P2 P3 P4 P5 P6 P7 P8 U304 P1 P2 P3 P4 P5 P6 P7 P8 U303 D307 D303 D304 D306 D305 CTL 16dB CTL 4dB CTL 8dB CTL 2dB CTL 1dB 16dB in Ext 5Vdc 4dB in 8dB in 2dB in 1dB in J304 4 J304 1 2 J304 5 3 J304 7 P1 P2 P3 P4 P5 P6 P7 P8 U302 R301 R303 R302 R304 R319 R309 R310 R316 R315 R318 R317 R314 R313 R308 R307 R311 R312 R305 R306 A Sivacoe RF Conditioning 1 12 Insight Control Sy...

Страница 56: ...701 7 J702 Disable J703 Disable C704 C702 2 J702 C703 8 J702 TMP CS TMP SCK TMP Vcc TMP SO 3 J702 1 J702 4 J702 TMP GND P1 P2 P3 P4 P5 P6 P7 P8 U701 LM70CIMM A Sivacoe Temperature Sensor Board 1 10 Insight Control System Date June 4 2007 Page 1 of 1 Rev ID ...

Страница 57: ...0 21 22 23 24 25 J602 F604 8 7 6 5 4 3 2 1 J603 F602 8 7 5 4 3 2 RESET Soft RES 3 3 Vdc CAR down 5 Vdc CAR up CAR off CAR on ground ODRVflag VSWRflag FWD samp TEMPflag RFL samp PSUflag F601 F603 1 J601 TxNET 1 10 LP Date July 16 2008 Page 1 of 1 Rev ID ...

Страница 58: ...IN 3 IN 2 IN 1 OUT 8 OUT 7 OUT 6 OUT 5 OUT 4 OUT 3 OUT 2 8 7 6 5 4 3 2 OUT 1 1 J609 8 7 6 5 4 3 2 1 J608 IN 8 IN 7 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 J602 F604 8 7 6 5 4 3 2 1 J603 F602 8 7 5 4 3 2 RESET Soft RES 3 3 Vdc CAR down 5 Vdc CAR up CAR off CAR on ground ODRVflag VSWRflag FWD samp TEMPflag RFL samp PSUflag F601 F603 1 J601 TxNE...

Страница 59: ...ing effects of the heat sinks within the 500 watt power amplifier enclosure there are six fans that each provide 170 cubic feet per minute CFM of air flow into zero static pressure There are three fans mounted at the front of the heat sink and three mounted at the back end of the heat sink The fans are mounted side by side to produce the best cooling for the system and are operating in a push pull...

Страница 60: ... to expect long life and continued performance from the power amplifier The building must be clean dry temperature controlled and secure Don t forget to allow space in the building for any additional racks to house test equipment a workbench area line regulating transformers ladders equipment and parts storage first aid kit emergency generator if used as well as heating and cooling devices that ma...

Страница 61: ...lar heated air Please ensure that the intake and exhaust areas are on the same side of the building to avoid pressure differentials during windy conditions Also do not position intake near exhaust s preheated air If air conditioning is required to cool the shelter discuss the situation with a qualified HVAC technician Under average conditions 12 000 BTUs will cool approximately 500 square feet to ...

Страница 62: ...ional electrical code in your area any applicable provincial or state codes and good engineering practice Special consideration should be given to lightning protection of all systems in view of the vulnerability of most transmitter or translator sites to lightning Lightning arrestors are recommended in the service entrance Straight and short grounds are recommended The electrical serviced must be ...

Страница 63: ...s section and wind loading of the system Attaching the transmission line to the tower is crucial to maintain a safe and reliable operation Nylon wire ties and electrical tape will breakdown in the sunlight and ultimately fail creating a potentially dangerous situation It is important to use proper clamps and hoisting grips and also ensure that the transmission line is grounded to the tower in seve...

Страница 64: ...er implies that it be secure from wildlife Use sturdy construction materials including sheet metal if necessary Holes around conduit cable and other similar entry points should be stuffed with steel wool and caulked to prevent entry of wildlife Other features of security for your shelter may include its location with respect to the prevailing wind conditions A location leeward of some natural topo...

Страница 65: ...ctors or fan failures Inspect all connectors for bent connector pins If the equipment is damaged a claim should be filed with the carrier once the extent of the damage is assessed Technalogix cannot stress too strongly the importance of immediate careful inspection of the equipment and subsequent immediate filing of the necessary claims against the carrier if necessary If possible inspect the equi...

Страница 66: ...td TAVD 500 Transmitter VIII 7 Location and Function of Controls and Connectors TAVD 500 Power Amplifier The following illustration depicts the location of the connectors when installing the 500 watt power amplifier ...

Страница 67: ...actile button to reset microcontroller in control board Also clears existing faults The amplifier will come back on with the soft start feature RF IN RF input from modulator or processor BNC connector 50 ohm RF OUT 500 watt rms RF output Connects to combiner filter enclosure N connector 50 ohm REMOTE PORT Port to monitor and control the amplifier externally See Monitor and Control section for pin ...

Страница 68: ...alogix Ltd TAVD 500 Transmitter VIII 9 Location and Function of Controls and Connectors Filter Enclosure The following illustration depicts the location of the connectors when installing the filter enclosure ...

Страница 69: ...500 Transmitter VIII 10 RF IN RF inputs 500 watts each from the power amplifier N female connector 50 ohm RF OUT 500 watt rms RF output Connects to inline wattmeter not supplied and antenna 7 16 DIN female connector 50 ohm ...

Страница 70: ...AC supply line 5 Hook up the modulator or processor as shown in their respective manuals for a transmitter or translator Do not connect the modulated signal from the RF OUT on the modulator or processor to RF IN on the power amplifiers at this time Because of the characteristics of transistor devices the RF drive should not be connected to the power amplifier until after the power supply and bias ...

Страница 71: ...r 3 Plug the modulator or processor into AC mains 4 With the PA output loaded plug the 3U power supply enclosure into 220V AC mains 5 Switch AC rocker switch to ON position 6 Verify that the power amplifier fans are all on 7 Ensure that the modulator processor is turned on and set up according to its instructions Depress the POWER tactile button to turn the unit on 8 The internal soft start circui...

Страница 72: ...l automatically shut down and cycle as previously described 12 Verify that the power supply reads approximately 30 Volts DC see supplied final inspection sheet for factory settings of power supply levels on the LCD of the power amplifier 13 Look at the transmitted output using a suitable monitor The picture and sound quality should be clean and sharp If the output picture and sound quality is unsa...

Страница 73: ...off and unplug all of the AC inlet cords Remove the top lid by unscrewing the 6 32 machine screws Use extreme caution when working near the AC input terminal The power amplifier and power supply store hazardous capacitances and voltages Using either compressed air or a brush with soft bristles loosen accumulated dust and dirt and then vacuum the interior of the cabinet Complete a visual inspection...

Страница 74: ...in the correct operating position Is the input signal present Check LCD readings for presence of forward and reflected power and 31 V DC supply levels The above is an aid in determining the fault if some aspect of the system is not operating The following table deals with quality of operation Symptom Possible Fault Correction Horizontal bars in picture may roll either way depending on phase AC gro...

Страница 75: ...transmission line Ensure correct antenna impedance 50 ohms Check antenna tuning and VSWR Verify correct cable for transmission line length Check all cables for visible damage kinks nicks or cuts Check all connectors for poor connections water or corrosion Check alignment of antenna Check for physical damage of antenna including ice build up ...

Страница 76: ...Thank you for choosing Technalogix Ltd ...

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