Elecraft_K-3_assembly_manual_2014.pdf

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1、 ELECRAFT K3 HIGH-PERFORMANCE 160 6 METER TRANSCEIVER K3 KIT ASSEMBLY MANUAL Rev M, September 3, 2014 Copyright 2014, Elecraft, Inc. All Rights Reserved 1 Contents Introduction . 2 Customer Service and Support . 3 Technical Assistance . 3 Preventing Electrostatic Discharge Damage . 5 How ESD Damage

2、Occurs . 5 Preventing ESD Damage . 5 Preparing for Assembly . 6 Overview of the Kit . 6 Tools and Test Equipment Required . 8 Unpacking and Inventory . 9 Screws . 9 Standoffs . 10 Lock Washers . 10 Assembly . 11 RF Board and Chassis . 12 RF Board Description . 12 RF Board and Chassis Assembly Proced

3、ure . 12 KANT3 or KAT3, Right Side and Rear Panels . 20 KANT3 or KAT3 Description. 20 Installing KANT3 or KAT3 Antenna Connectors . 20 Installing KRX3 AUX RF (ANT) Connector . 20 Preparing Right Side Panel for Installation . 23 Mounting the KANT3 or KAT3, Side and Rear Panels . 24 KIO3 Interface . 2

4、7 KIO3 Description . 27 KIO3 Interface Installation Procedure . 27 Front Panel and DSP . 31 Front Panel and DSP Description. 31 Front Panel Assembly Procedure . 31 Mounting the Subreceiver Auxiliary DSP Board 39 Installing the KDVR3 Digital Voice Recorder Option . 41 Mounting the DSP Board Assembly

5、on the Front Panel . 42 Mounting the Front Panel Assembly . 44 Resistance Checks . 48 Initial Power On Check . 49 KREF3 Reference Oscillator . 49 KREF3 Description . 49 KREF3 Installation Procedure . 49 KSYN3 Synthesizer . 52 KSYN3 Description . 52 KSYN3 Installation Procedure . 52 Loudspeaker . 55

6、Loudspeaker Description . 55 Loudspeaker Installation Procedure . 55 KPA3 Shield . 57 KPA3 Shield Description . 57 KPA3 Shield Installation Procedure . 57 Bottom Cover . 59 Bottom Cover Description . 59 Bottom Cover Hardware Installation Procedure . 59 KNB3 Noise Blanker . 61 KNB3 Noise Blanker Desc

7、ription . 61 KNB3 Installation Procedure . 61 Battery BT1 . 62 Battery BT1 Description . 62 Battery BT1 Installation Procedure . 62 KBPF3 General Coverage Receive Option . 63 KBPF3 Description . 63 KBPF3 Installation Procedure . 63 Power Amplifier Jumper Block . 64 Finishing the Enclosure . 64 Fan O

8、pening Cover . 64 AUX RF Cable . 64 Bottom Covers . 65 Top Cover . 67 Test and Calibration . 69 Initial Power Checks . 69 Synthesizer Calibration . 70 Filter Setup . 71 Reference Oscillator Calibration . 71 TX Gain Calibration . 71 Option Modules . 72 Enable Modules . 72 KPA3 100-Watt Amplifier Inst

9、allation . 72 KRX3 Subreceiver Installation . 72 Other Calibration Procedures . 72 Wattmeter Calibration (Optional) . 72 S-Meter Calibration (Optional) . 72 Appendix A, Illustrated Parts List. A1 Elecraft manuals with color images may be downloaded from . 2 Key to Symbols and Text Styles Identifies

10、important information. -100 Characters displayed on the LCD screen DISP Tap switch function (labeled above a switch) AVERAGE Hold switch function (labeled below a switch; hold for 1/2 sec. to activate) MENU:Font Typical menu entry 3 Introduction This manual will guide you through assembly of your El

11、ecraft K3 transceiver. Were confident that youll find the K3 easy to build, even if youve had no prior kit-building experience. Every modern transceiver is complex, and the K3 is no exception. The kit includes nearly 300 individual components, including over a dozen PC boards and a multi-element mod

12、ular chassis. But the K3s unique design eliminates some of the tedious aspects of construction, enabling you to complete assembly in far less time than previous high-performance transceiver kits. Also, virtually all of the alignment is handled in firmware using the K3s built-in test capabilities. If

13、 you should you have difficulty, youll have our full support via phone and e-mail. In addition, we hope youll join our growing and enthusiastic community of owner/builders via the Elecraft reflector. Further information about the Elecraft K3, including specifications, installation, and operation ins

14、tructions, can be found in the Owners Manual. Elecraft manuals with color images may be downloaded from . Customer Service and Support Technical Assistance You can send e-mail to K and we will respond quickly - typically the same day Monday through Friday. Telephone assistance is available from 9 A.

15、M. to 5 P.M. Pacific time (weekdays only) at 831-763-4211. Please use e-mail rather than calling when possible since this gives us a written record of the details of your problem and allows us to handle a larger number of requests each day. Repair / Alignment Service (We want to make sure everyone s

16、ucceeds!) If necessary, you may return your Elecraft product to us for repair or alignment. (Note: We offer unlimited email and phone support to get your kit running, so please try that route first as we can usually help you find the problem quickly.) IMPORTANT: You must contact Elecraft before mail

17、ing your product to obtain authorization for the return, what address to ship it to and current information on repair fees and turn-around times. (Frequently we can determine the cause of your problem and save you the trouble of shipping it back to us.) Our repair location is different from our fact

18、ory location in Aptos. We will give you the address to ship your kit to at the time of repair authorization. Packages shipped to Aptos without authorization will incur an additional shipping charge for reshipment from Aptos to our repair depot. 4 Elecrafts 1-Year Limited Warranty This warranty is ef

19、fective as of the date of first consumer purchase (or if shipped from factory, date product is shipped to customer). It covers both our kits and fully assembled products. For kits, before requesting warranty service, you should fully complete the assembly, carefully following all instructions in the

20、 manual. Who is covered: This warranty covers the original owner of the Elecraft product as disclosed to Elecraft at the time of order. Elecraft products transferred by the purchaser to a third party, either by sale, gift or other method, who is not disclosed to Elecraft at the time of original orde

21、r, are not covered by this warranty. If the Elecraft product is being bought indirectly for a third party, the third partys name and address must be provided to Elecraft at time of order to insure warranty coverage. What is covered: During the first year after date of purchase, Elecraft will replace

22、 defective or missing parts free of charge (post-paid). We will also correct any malfunction to kits or assembled units caused by defective parts and materials. Purchaser pays inbound shipping to Elecraft for warranty repair, Elecraft will pay shipping to return the repaired equipment to you by UPS

23、ground service or equivalent to the continental USA and Canada. Alaska, Hawaii and outside U.S. and Canada actual return shipping cost paid by owner. What is not covered: This warranty does not cover correction of kit assembly errors. It also does not cover misalignment; repair of damage caused by m

24、isuse, negligence, or builder modifications; or any performance malfunctions involving non-Elecraft accessory equipment. The use of acid-core solder, water-soluble flux solder, or any corrosive or conductive flux or solvent will void this warranty in its entirety. Also not covered is reimbursement f

25、or loss of use, inconvenience, customer assembly or alignment time, or cost of unauthorized service. Limitation of incidental or consequential damages: This warranty does not extend to non-Elecraft equipment or components used in conjunction with our products. Any such repair or replacement is the r

26、esponsibility of the customer. Elecraft will not be liable for any special, indirect, incidental or consequential damages, including but not limited to any loss of business or profits. 5 Preventing Electrostatic Discharge Damage There is no climate or work location where the components of your K3 ar

27、e safe from Electrostatic Discharge (ESD) unless you take specific steps to prevent such damage. Many of the components in your K3 can be damaged by static discharges of only a few volts: far too little for you to notice. It is those low-voltage but destructive discharges that easily happen anywhere

28、 and under virtually any environmental conditions. ESD damage may not be apparent at first. The damaged components may not fail completely. Instead, the damage may result in below-normal performance for an extended period of time before you experience a total failure. How ESD Damage Occurs Whenever

29、an object containing a static charge touches a circuit in your K3, current will rush into the circuit until the components reach the same voltage as the source of the static charge. If the voltage or current that passes through a component in your K3 during that brief period exceeds its normal opera

30、ting specifications, it may be damaged or destroyed. Preventing ESD Damage ESD damage cannot occur if there is no voltage difference between the components in your K3 and any object that touches them. That is how anti-static packaging works. Anti-static bags allow the static charge to flow over thei

31、r surface, so that any part of the bag that touches the components inside are all at the same potential at all times. Anti-static foam keeps the leads of sensitive components at the same potential. At your work bench, avoiding a dangerous voltage is achieved most easily by tying everything together

32、and connecting them to a common mains safety ground. This includes your K3, individual boards or other sensitive components as well as everything they may touch at the work table. Inexpensive static dissipating work mats are readily-available that will steadily and safely drain off any charges built

33、 up on parts or circuit boards placed on them. They are supplied with a lead that connects the mat to the common workbench ground. Also, metal cabinets on test equipment used on the bench should be tied together and connected to the common ground. Most importantly, you must have a way of continuousl

34、y draining off any static charges that occur on your body. Such charges are easy to create, even while sitting quietly at the work bench. Moving your feet on the floor, shifting position in your chair or even moving your arms so that clothing rubs against itself can all produce destructive static ch

35、arges. You can discharge yourself by touching an unpainted metal ground, but that will last only until you move in a way that produces a new static charge. The safest technique is to wear a grounded wrist strap with a series 1-megohm resistor that continuously drains off any charges. Such wrist stra

36、ps are readily- available and inexpensive. WARNING DO NOT attach a ground directly to yourself without a current-limiting resistor as this poses a serious shock hazard. A wrist strap must include a 1-megohm resistor to limit the current flow. If you choose to touch an unpainted, metal ground to disc

37、harge yourself, do it only when you are not touching any live circuits with your other hand or any part of your body. 6 We strongly recommend you take the following anti-static precautions (listed in order of importance) to avoid trouble: Leave ESD-sensitive parts in their anti-static packaging unti

38、l you install them. The packaging may be a special plastic bag or the components leads may be inserted in conductive foam. Parts which are especially ESD-sensitive are identified in the parts list and in the assembly procedures. Wear a conductive wrist strap with a series 1-megohm resistor. If you d

39、o not have a wrist strap, touch a ground briefly before touching any sensitive parts to discharge your body. Do this frequently while you are working. You can collect a destructive static charge on your body just sitting at the work bench. DO NOT attach a ground directly to yourself as this poses a serious shock hazard. Use a grounded anti-static mat on your work bench. If you choose to use a soldering iron to work on your K3 for any reason, be sure the iron is ESD-safe with a grounded tip tied to the