User manual RAMSEY CW700

[. . . ] MICRO MEMORY CW KEYER THE KEYER THAT NEVER FORGETS Ramsey Electronics Model No. CW-700 Now you can send perfect quality code at any speed!This computerized "smart key, " for novices and pros alike, even lets you store your own personal messages for a fraction of the cost of other keyers!· · A state of the art microcontroller lets you send perfect quality code anytime, at any speed!Four memory banks allow you to record your own personal messages for up to two minutes long. [. . . ] Another way to look at it is that the flat spot will face the programing switch (S5). When properly inserted, this marking must face towards the battery side of the board. This socket has been included so that the chip is protected from excessive soldering heat, and can be taken out easily. In order to get the most desirable speed range out of your keyer, some careful thought must be given to installing C14 and C19. Next, install the eight pin socket (SOC1) into your board where U3 is to be mounted. Line this up with the silhouette on the board, just like it were a chip. CW700 · 14 We offer an optional kit, the CW700MX, which simply plugs into the socket. Capacitor C19 C14 C14 and C19 Speed 5 to 32 10 to 60 3 to 23 WPM 39. Electrolytic capacitors are polarized with a (+) and a (-) lead and must be installed in the correct orientation. Ordinarily, only the negative side is marked on the capacitor with a dark band and the (-) sign clearly shown, while PC boards will usually show the (+) hole location. This resistor must be mounted "standing up. " (Boy, if those resistors didn't have such strong legs, you might open your kit up some day and find them all laying down on the job. ) 44. You have also completed the circuit that determines the speed of the code. Please check for bad solder joints and insure that all of the parts have been inserted correctly. When you return, you will be building a circuit for the memory chip first. Then, you will be building the circuit that makes the tone that you hear, and it's volume control. CW700 · 15 46. Install R16, a 47K ohm resistor [yellow-violet-orange] not sitting, but standing. It will be small, orange, and marked "502. " Press the potentiometer flush with the board and solder all three connections. Install D10, a 1N4148 glass bead diode, paying particular attention to the way that the band is pointing. Now let's move on and make the circuit that amplifies the tone so that you can hear it. Just as with other diodes, make sure the stripe matches up with the board. You have just finished the part of your keyer that makes it such a great code oscillator not including the speaker. With this feature, you can not only practice, but help to teach your friends about the wonderful world of CW!We'll just make a few more finishing touches and then move on to the power supply! CW700 · 16 62. [. . . ] If you need help, please read through your manual carefully, all information required to properly build and test your kit is contained within the pages!DEFECTIVE PARTS: It's always easy to blame a part for a problem in your kit, Before you conclude that a part may be bad, thoroughly check your work. Today's semiconductors and passive components have reached incredibly high reliability levels, and it's sad to say that our human construction skills have not!All our kit parts carry the Ramsey Electronics Warranty that they are free from defects for a full ninety (90) days from the date of purchase. [. . . ]