ELECRAFT XV144 Скачать руководство пользователя

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Elecraft

XV Series Transverters

Models XV50, XV144, XV222

R e v B , N o v e m b e r 7 , 2 0 0 3

Содержание XV144

Страница 1: ...Elecraft XV Series Transverters Models XV50 XV144 XV222 Rev B November 7 2003...

Страница 2: ...rd Assembly 24 RF Board Assembly Part I 29 RF Board Assembly Part II 42 RF Board Assembly Part III 51 Final Assembly 54 Alignment and Test 58 Installation 64 Using Your Transverter 76 Options and Modi...

Страница 3: ...ed between dot or bar modes and has two brightness levels when used with an Elecraft K2 transceiver The transverters are housed in attractive low profile enclosures that may be stacked for multi band...

Страница 4: ...epair Service Contact Elecraft before returning your equipment to obtain the current information on repair fees To ship the unit first seal it in a plastic bag to protect the finish Use a sturdy packi...

Страница 5: ...volt logic level to within 0 5 volts of ground at 1 ma I F Overload Protection Survives 100 watts RF input at the I F Port without damage with transverter un keyed in receive mode 1 Current varies wi...

Страница 6: ...e invaluable if you make any modifications or need to do any repairs Narrow solder wick or a good vacuum desoldering tool such as the Soldapullt model DS017LS are recommended See Soldering Desoldering...

Страница 7: ...rts The parts list contains illustrations of the parts to help you identify them Identifying marks on the individual parts are shown in the text in parenthesis For example Transistor Q4 PN2222 indicat...

Страница 8: ...minor deviations of your DMM reading from the expected value Typical errors in most DMMs and the tolerances of the resistors normally produce readings that are slightly different from the value indica...

Страница 9: ...ible measure the values of all capacitor below 001 F Most DMMs include capacitance measurement capability Fixed capacitors with values of 1000 pF or higher generally use a decimal point in the value s...

Страница 10: ...he part itself In such cases you ll need to carefully bend the leads out and then down to fit the given space Always use long nose pliers to accomplish this task and bend the leads don t tug on them T...

Страница 11: ...ck values component placement and orientation Take care to avoid ESD damage to components Techniques Don t pull a lead or pin out of a hole unless the solder has been removed completely or you are app...

Страница 12: ...installed Some of these components are static sensitive and are vulnerable until the other parts are installed on the board There is a temporary jumper across the solder pads for L1 on the board to p...

Страница 13: ...as an optional accessory if desired The Bail will hold the front of the transverter up at a convenient viewing angle See www elecraft com for details E980067 2 RCA Jack E620057 3 BNC Connector assy wi...

Страница 14: ...er Connector 3 Pin E620007 9 Header Shorting Block 2 Pin E620055 S2 1 DPDT Power switch E640006 SW1 1 4 Pole DIP switch E640014 1 Key Cap Black E980023 F1 1 Resettable Fuse 5A PolySwitch Thin about 3...

Страница 15: ...sitive Do not remove it from its ESD protective packaging until you are instructed to install it E580002 Q4 1 Transistor HEXFET IRL620 E580018 Pre mounted on the PCB Q3 1 Transistor PHEMT ATF 34143 E5...

Страница 16: ...n red brn E500105 R12 R19 2 Resistor 1 watt 5 180 ohm brn gry brn E500113 R15 1 Resistor 56 ohm SMD 1206 size E500099 Pre mounted on the PCB R17 1 Resistor 02 ohm SMD 2512 size E500100 C2 C57 2 Cerami...

Страница 17: ...t E690025 L7 2 Ferrite Bead E980029 T1 1 Toroid Core FT37 43 E680003 12 in 30 cm Solid Insulated Wire 24 E760005 12 in 30 cm Red magnet wire 26 E760002 12 in 30 cm Green magnet wire 26 E760004 3 in 7...

Страница 18: ...R12 R13 R14 R15 R16 R21 R22 R23 14 Resistor Metal Film 1 4 watt 120 ohm brn red brn E500022 R1 1 Resistor Metal Film 1 4 watt 5 220 ohm red red brn E500002 R2 1 Resistor Metal Film 1 4 watt 5 470 ohm...

Страница 19: ...cture Ref Designator s QTY Description Part Q1 Q2 Q3 Q4 Q5 Q6 6 Transistor NPN PN2222 E580001 Z1 1 Ceramic Resonator 4 MHz E660001 JP1 1 Header Connector 2 pin E620054 1 Header Shorting block 2 pin E6...

Страница 20: ...1 SO 239 Chassis Mount Connector E620064 R24 1 Resistor Metal Oxide 2 watt 5 56 ohm 56J E500102 Z4 1 Resistor 1 4 watt 5 56 ohm grn blu blk E500096 R6 1 Resistor 1 4 watt 5 330 ohm org org brn E500103...

Страница 21: ...L2 L3 2 Molded Inductor 22 H red red silver E690028 L10 L11 2 Variable Inductor 198 240 H Blue E690032 L1 1 Variable Inductor 333 407 H Grey E690033 L12 L13 L14 3 Variable Inductor 243 297 H Shielded...

Страница 22: ...red brn E500105 R28 1 Resistor 1 4 watt 1K ohm brn blk red E500013 R6 1 Resistor 1 4 watt 470 ohm yel vio brn E500003 C14 1 Ceramic Capacitor 0 1 LS 33 pF 330 E530116 C12 1 Ceramic Capacitor 0 1 LS 1...

Страница 23: ...n grn silver E690022 L10 L11 2 Variable Inductor 085 0 1 H Orange E690023 L1 1 Variable Inductor 108 132 H Orange E690024 L12 L13 L14 3 Variable Inductor 059 070 H Red Plastic Insert E690027 Y1 1 Crys...

Страница 24: ...or 2 watt 5 56 ohm grn blu blk E500102 R29 Z4 2 Resistor 1 4 watt 5 56 ohm grn blu blk E500096 C14 1 Ceramic Capacitor LS 0 1 22 pF 220 E530139 C12 1 Ceramic Capacitor LS 0 1 10 pF 100 E530118 C13 1 C...

Страница 25: ...080 H Red E690029 L1 1 Variable Inductor 041 044 H Brown E690034 L12 L13 L14 3 Variable Inductor Shielded 038 040 H Brown Plastic Insert E690031 Y1 1 Crystal 194 MHz 7th Overtone Series Resonant 194...

Страница 26: ...Figure 6 Press the leads against a smooth hard surface and roll the roll the light bar until they are at about a 45 degree angle to the side of the light bar 1 2 3 Figure 6 Preparing Light Bar Leads...

Страница 27: ...ard as shown on the silk screened outline The socket is against the board at both ends If necessary heat the tack soldered joints and adjust the socket so it is flush Solder all 28 pins of the IC sock...

Страница 28: ...TEXT APPEAR ON BODY THERE MAY BE ADDITIONAL MARKINGS AS WELL SOLDER TRIM LEADS Figure 10 Installing Capacitors Install capacitor C4 001 F 102 on the BACK side of the board the side that is NOT silk s...

Страница 29: ...ough the holes provided for D10 on the silk screened side of the front panel board Be sure the long lead is in the right hand hole with the square pad Do not solder yet Hold the LED with the back of t...

Страница 30: ...brn __R11 120 ohm brn red brn __R10 120 ohm brn red brn __R9 120 ohm brn red brn __R8 120 ohm brn red brn __R7 120 ohm brn red brn __R6 120 ohm brn red brn BODY OF PART AGAINST THE BOARD ENSURE MARKI...

Страница 31: ...e connector P5 Normally J1 is included with the Front Panel board parts and P5 is with the RF Board parts Slide the 12 pin female connector J1 onto the pins of the 12 pin male connector P1 There shoul...

Страница 32: ...oard by placing the long end of one of the right angle brackets between the resistor and circuit board until the resistor is soldered in place See Figure 15 The objective is to leave space for air to...

Страница 33: ...ard i Diodes must be oriented correctly A black band around the diode indicates the cathode end Install each diode so the cathode end goes to the square solder pad and the band is oriented to match th...

Страница 34: ...ter to the end instead of from the end towards the center like resistors Install molded inductor L8 15 H brn grn blk in the upper right quadrant of the board Install molded inductor L9 0 47 H yel vio...

Страница 35: ...001 F 102 __C8 01 F 103 __C3 001 F 102 __C63 01 F 103 __C6 01 F 103 __C22 01 F 103 __C61 01 F 103 __C2 100 pF 101 __C23 01 F 103 __C38 01 F 103 __C27 01 F 103 __C29 047 F 473 __C37 01 F 103 __C35 10...

Страница 36: ...our transceiver for separate split path transmit and receive antenna connections do the following _ In the next step cross out relay K1 It will not be installed Remove K1 from your parts and set it as...

Страница 37: ...ader is sitting vertically on the board see Figure 11 Reheat and adjust as necessary then solder all three pins Do not hold the solder iron on the pins more than 1 or 2 seconds Excessive heat will mel...

Страница 38: ...positions for D10 and D11 on the board near the center on the right hand side Note that the square solder pad for D10 is to the left and the square solder pad for D11 is to the right The diodes must...

Страница 39: ...Q4 IRF 620 in the space provided near diodes D7 and D8 as shown in Figure 19 Be sure the leads are inserted until their shoulders are against the top of the board If the leads are not inserted far eno...

Страница 40: ...stripped and tinned The leads must be prepared correctly to provide good electrical contact when installed Strip the insulation and tin the leads using one of the following techniques 1 Heat Strippin...

Страница 41: ...board over each hole and bend the leads on the bottom of the board to hold the assembly in place Solder both leads and trim them as short as possible Install the DPDT power switch at SW2 in the lower...

Страница 42: ...rimp terminal as shown in Figure 26 and slide it into a shell until it clicks in place Tug on the wire to be sure it is locked in place If the terminal comes out you probably have it in upside down SP...

Страница 43: ...ove on the other Slide the two shells together engaging the tongue in the groove Be sure they are fully meshed No locking pin is needed Bend the copper wire at right angles to the shells so that when...

Страница 44: ...pF 101 __C14 390 pF 391 Install the following capacitors near frequency mixer Z1 __C58 390 pF 391 __C59 390 pF 391 Install capacitor C69 10 pF 100 near L15 and L16 Install the two 4 15 pF trimmer cap...

Страница 45: ...ve the tuning slug from L1 The tuning slug will not be used Install the two blue variable inductors near the upper left corner of the board __L10 __L11 Unscrew and remove the tuning slugs from L10 and...

Страница 46: ...r L10 and L11 SMD capacitors C45A C46A and C47A in the RF Bandpass Filter Carefully inspect the bottom of the circuit board for the following All component leads are soldered Be especially careful whe...

Страница 47: ...quadrant __C13 047 473 __C12 10 pF 100 __C14 33 pF 330 Install a jumper wire across the solder pads for C69 near L15 and L16 Install a jumper wire across the solder pads for L3 to the left of torodial...

Страница 48: ...relay K6 at the center of the board Install PC trimmer potentiometer R39 1 K ohm 102 near the center of the board Install trimmer capacitor C1 4 15 pF to the right of relay K1 at the upper left part o...

Страница 49: ...oss the solder pads at W1 near the notch and L7 on the left side of the board Verify that there are no components installed in the following locations These components are not used in XV144 transverte...

Страница 50: ...e board Z3 near U6 in the lower left quadrant of the board Install the following capacitors near the circular outline for OV1 in the lower right quadrant __C13 047 473 __C12 10 pF 100 __C14 22 pF 220...

Страница 51: ...the board Unscrew and remove the tuning slug from the inductor The tuning slug will not be used i If you are not wearing a grounded anti static wrist strap touch an unpainted grounded object before pe...

Страница 52: ...nductor T1 Capacitor C58 next to torodial inductor T1 Capacitor C69 next to the OV1 circle on the board Molded inductor L3 replaced by a jumper to the left of torodial inductor T1 SMD capacitor C32 on...

Страница 53: ...n Figure 36 On the inside surface of the bottom cover locate the area with four holes along one side that matches the holes in the heat spreader Test fit the larger of the two thermal conduction pads...

Страница 54: ...shown in Figure 33 Figure 33 RF Power Module and Flat Washers in Place on the Heat Spreader Slide the circuit board under the leads on the RF power module and over the screws until they pass through t...

Страница 55: ...four leads on the RF power modules for the XV144 and XV222 and five leads on the module for the XV50 Hold the RF Power module in place and tighten both screws and nuts to secure it i Be sure the four...

Страница 56: ...CREW GROUND LUG ON BOTTOM SCREW NEAREST THE END Figure 37 Mounting the Antenna Connector J1 on the Back Panel Solder the two clipped leads you saved when you installed D5 Page 31 to the J1 solder pads...

Страница 57: ...re it with a 3 16 4 8 mm screw and split lock washer i Either wear a grounded anti static wrist strap or touch an unpainted grounded object before handling the processor U4 in the next steps or at any...

Страница 58: ...t angle brackets with 3 16 4 8 mm screws and split lock washers Place the cabinet front panel face up on your work surface and attach the label with two 2 56 screws Orient the label with the lighter s...

Страница 59: ...probably inserted upside down Optional The supplied spring pin may be inserted as shown in the figure above to keep the red and black housing from slipping apart The manufacturer of the connectors rec...

Страница 60: ...as follows R10 Power Cal at mid range R13 LNA Bias full CCW counter clockwise R22 Input Atten Adjust full CCW R39 PA Bias full CCW i In the next step you will use the alignment tool supplied with you...

Страница 61: ...and Select switch in the lower left corner i You may notice that some of the 1 watt resistors are quite warm to the touch while power is applied This is normal They are operating well within their des...

Страница 62: ...g L12 L13 L14 L15 L16 and L17 for maximum voltage at TP5 several times turning R22 CCW as needed to keep the voltage below 2 volts Some of the adjustments interact Set your 28 MHz rig for the output f...

Страница 63: ...local oscillator frequency at 22 MHz Use a counter to measure the output frequency of the transverter at 50 MHz Use a received signal produced by a calibrated signal generator transmitter or other kn...

Страница 64: ...my load at 25 000 MHz to produce a second harmonic at 50 000 MHz If it won t transmit outside the 12 meter Amateur band set it for 24 990 MHz to produce a second harmonic at 49 980 MHz Set the I F rig...

Страница 65: ...icating that a transmit signal was applied to the transverter while the transverter was still in receive mode Turn the transverter Power Off the On again to clear the overload display If you are using...

Страница 66: ...emain on at all times for greatest stability or to switch on and off to avoid the possibility of producing birdies that might interfere with the use of other equipment Complete details of the options...

Страница 67: ...veral transverters may be connected to a single 28 MHz rig in a daisy chain If the 28 MHz rig has a single transmit and receiver signal port as shown in Figure 44 the XV ports can be used to loop thro...

Страница 68: ...2 3 JP5 1 2 JP6 1 2 1 dBm 1 26 mW to 24 dBm 251 mW JP3 1 2 JP4 1 2 JP5 1 2 JP6 1 2 20 dBm 01 mW to 0 dBm 1 mW JP3 1 2 JP4 1 2 JP5 2 3 JP6 2 3 Configure the transverter power control for use with a non...

Страница 69: ...on page 76 for details If this happens you can adjust the transverter timing as described in Transmit Receive Switching Delay page 77 Unwrap the top cover and check the inside surface around the four...

Страница 70: ...ww elecraft com You will need a 50 ohm coaxial cable to connect your K2 to the transverter with a BNC connector at the transverter end and the appropriate connecter at the K2 end for attaching it to t...

Страница 71: ...nnector that was supplied with the KI02 or KPA100 kit In that case wire the connector as shown in Figure 48 If you have wired the cable for the K2 and other accessories already add the transverter ext...

Страница 72: ...AL OPTIONAL KAT100 CONTROL CABLE SEE KAT100 MANUAL TRANSVERTER KAT100 ATU MALE MALE MALE TO ADDITIONAL TRANSVERTERS K2 OR K2 100 PC FEMALE 1 2 3 4 5 6 7 8 9 DB 9 FEMALE DB 9 MALE DB 9 MALE TRANSVERTER...

Страница 73: ...not use the ANT1 and ANT2 outputs to switch between the transverter and an HF antenna The isolation between these outputs is not sufficient to prevent radiating QRM on the 10 meter band or hearing 10...

Страница 74: ...ur firmware If you can t find the documentation copies are available from the Elecraft web site at www electraft com Set up your K2 so the output power is controlled by the front panel POWER control i...

Страница 75: ...tmeter Unwrap the top cover and check the inside surface around the four screw holes If necessary clean the surface to ensure contact between the metal cover and the 2 D connectors Place the top cover...

Страница 76: ...Single Port Antenna Connection Split port antenna connections are shown in Figure 54 For split port operation The transverter must be wired for split port antenna connections The transmit antenna is c...

Страница 77: ...amplifier also may be used with a single antenna provided it meets the above requirements and includes suitable transmit receive switching to bypass the amplifier during receive see TRANSVERTER TX KEY...

Страница 78: ...lator may produce unwanted birdies when operating on other bands The behavior of the local oscillator may be selected by a 2 terminal shorting block at JP9 as follows JP9 1 2 The local oscillator powe...

Страница 79: ...resenting the power output will illuminate BAR All LEDs to the left of the current LED will illuminate resulting in a more visible display OFF The LEDs operate in DOT mode When used with other 28 MHz...

Страница 80: ...nd receive antennas Reducing Receive Gain to Preserve System Dynamic Range This modification describes how to reduce the gain of the transverter receive system to help preserve the system dynamic rang...

Страница 81: ...e is 12 volts at the rear panel connector even if the transverter power if off This will keep the oven and crystal warm and ready for operation at any time Replace the top cover and tighten the four c...

Страница 82: ...e bottom side of the board Remove the two screws you replaced at each end of the RF amplifier module Be sure the flat washers are in place between the module and the circuit board If necessary adjust...

Страница 83: ...Power Cal circuit board potentiometer between C72 and C23 Use sharp diagonal cutters to clip off the leads to U1 and remove it Inspect the board to be sure the solder pads for U1 are not shorted If ne...

Страница 84: ...ixing products Relay K2 routes the RF signal to transmit driver U6 RF power module U7 produces up to 20 watts output in CW or PEP SSB RF from U7 is routed through a low pass filter and relay K1 to the...

Страница 85: ...IF1 J3 LOW PASS FILTER LOCAL OSC Q1 Q2 RF POWER AMPLIFIER U7 LOW PASS FILTER RF POWER MONITOR EXT PA KEY Q4 RF XMIT DRIVER U6 KEY OUT J5 CONTROLLER U4 KEY IN J4 CONTROL J6 BAND SELECT S1 FRONT PANEL...

Страница 86: ...and D11 are used as limiters to protect the mixer during transmit as described below Inductor L9 resonates with the capacitance of the LEDs at 28 MHz to avoid attenuating the I F signal The 28 MHz I...

Страница 87: ...ver DC power is applied at J2 and it is selected by a K2 as described below If the transverter is not used with a K2 light bar D11 is enabled whenever DC power is applied at J2 and power switch S2 is...

Страница 88: ...e used to protect the mixer LEDs D10 and D11 will conduct and limit the I F signal to a safe level LEDs are used because their greater forward conduction voltage avoids the need to use diodes in serie...

Страница 89: ...Drawing Page 2 Front Panel Board Schematic Page 3 RF Board Parts Placement Drawing Page 4 RF Board I F and Control Circuits Common to all Bands Page 5 RF Board XV50 Circuits Page 6 RF Board XV144 Cir...

Страница 90: ...XV Front Panel Board Elecraft XV Series Transverters Page A 2...

Страница 91: ...2 RB3 LED 3 RB2 LED 4 RB1 LED 5 RB0 LED 6 RC7 LED 7 RC6 LED 8 RC5 LED 9 RC4 LED 10 AN0 PWR OUT RC3 KEY OUT RA2 ID RC0 PWR T R HIGH TO TX RC2 IF ENABLE RC1 PWR ENABLE RA1 LED 1 R6 120X10 R7 R8 R9 R10...

Страница 92: ...XV RF Board May be shown as C58 on some boards Elecraft XV Series Transverters Page A 4...

Страница 93: ...8 01uF Q4 IRF620 C39 001uF L8 15 uH K9 D9 1N4148 L9 0 47uH D10 D11 D12 1N4148 1 2 C52 150pF C53 18pF C54 150pF L15 L16 C55 270pF C56 270pF L17 C57 100pF R25 56 R26 160 R27 160 D13 1N4148 U4 D14 1N4148...

Страница 94: ...180 C23 01uF L7 200nH C25 047 uF C26 22uF Q3 ATF 34143 R13 100 R14 4 7 C27 01uF TP2 R15 56 R16 120 D3 6 8V C28 15pF U1 U2 C1 C29 047uF D4 1N4148 C30 22uF C31 047uF LM78L09 R24 56 C40 01uF C41 047 uF...

Страница 95: ...R11 1K C22 01uF R12 180 C23 01uF L7 200nH C24 047 uF C25 047 uF C26 22uF Q3 ATF 34143 R13 100 R14 4 7 C27 01uF TP2 R15 56 R16 120 D3 6 8V C28 4 7pF U1 U2 C1 C29 047uF D4 1N4148 C30 22uF C31 047uF LM78...

Страница 96: ...3 01uF L7 200nH C24 047 uF C25 047 uF C26 22uF Q3 ATF 34143 R13 100 R14 4 7 C27 01uF TP2 R15 56 R16 120 D3 6 8V C28 4 7pF U1 U2 C1 C29 047uF D4 1N4148 C30 22uF C31 047uF LM78L09 R24 56 C40 01uF C41 04...

Страница 97: ...pical voltages at test points and active devices all in VDC Location Rx Mode Tx Mode U6 Output Pin 0 5 U4 1 13 6 13 6 2 0 0 3 5 5 Q2 B 0 25 0 8 0 25 0 8 E 0 0 C 6 5 6 5 Q1 B 4 1 4 1 E 3 6 3 6 C 8 5 8...

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