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Ramsey Electronics RRW1A User Manual

Manual is about: WIRELESS REMOTE REPEATER KIT (Transmitter)

Summary of RRW1A

  • Page 1

    Rrw1a • 1 ramsey electronics model no. Rrw1a have you ever been frustrated with the range of your remote controls? Tired of having to bounce your ir remote off of ceilings and walls? Do you want to run your system from another room or floor? Here is the answer to your prayers! Extend the range of yo...

  • Page 2

    Rrw1a • 2 ramsey transmitter kits • fm100b professional fm stereo transmitter • fm25b synthesized stereo fm transmitter • mr6 model rocket tracking transmitter • tv6 television transmitter ramsey receiver kits • fr1 fm broadcast receiver • ar1 aircraft band receiver • sr2 shortwave receiver • sc1 sh...

  • Page 3: Rrw1A Wireless Remote

    Rrw1a • 3 rrw1a wireless remote repeater kit (transmitter) ramsey publication no. Mrrw1a price $5.00 table of contents introduction ............................................4 circuit theory ........................................5 learn as you build ...............................7 parts list .....

  • Page 4

    Rrw1a • 4 rrw1a introduction welcome to the rrw1a kit (and if you don’t have the time, the wired and tested version). Let’s take a moment to help you understand the basic workings of ir remote controls and how the rrw1 pair works. This will better help you understand what you are about to build. As ...

  • Page 5

    Rrw1a • 5 rrw1 pair theory of operation the rrw1a (transmitter board) may look quite simple but there is actually quite a lot being done inside each one of the parts. Many individual compo- nents are packed inside of the ir receiver part (u2) itself; so many in fact that if it was built up with disc...

  • Page 6

    Rrw1a • 6 when the ir detector on the rrw1a (transmitter board) “sees” a 38 khz ir signal, the output of the detector goes low (it is inverted). When there is no 38 khz signal present the output idles high. On the output of the ir detector you won’t see the 38 khz, just the data that the 38 khz repr...

  • Page 7

    Rrw1a • 7 ramsey “learn-as-you-build” assembly strategy be sure to read through all of the steps and check the boxes as you go to be sure you didn't miss any important ones. Although you may be in a hurry to see the end results, before you switch on the power be sure to check all wiring and componen...

  • Page 8

    Rrw1a • 8 this project will not work as well as you may wish if you just slap it together without following good assembly techniques and all of the instructions. No matter how clear we may think our manual is, if you have any questions give us a call at the factory instead of jumping to conclusions....

  • Page 9

    Rrw1a • 9 parts supplied with your rrw1a (transmitter) kit capacitors 1 2.2 pf ceramic capacitor (marked 2.2) [c7] 1 8.2 pf ceramic capacitor (marked 8.2) [c8] 3 47 pf ceramic capacitors (marked 47) [c1,4,6] 1 0.001 uf ceramic capacitor (marked .001 or 102 or 1 nf) [c3] 1 0.01 uf ceramic capacitor (...

  • Page 10

    Rrw1a • 10 assembly of the rrw1a assembly of the rrw1a is straight forward but it does require some time and patience. To get our bearings, we will start by mounting the power jack and move on from there. It serves as a good reference point for the other parts. 1. Install j1, the 2.1 mm power jack. ...

  • Page 11

    Rrw1a • 11 10. Install r4, a 22k ohm resistor (red-red-orange). 11. Install c4, a 47 pf ceramic capacitor (marked 47). This capacitor works with q1 to isolate the antenna from the oscillator section. The capacitor value of 47 pf was chosen because it looks like a direct short to ground at 433 mhz so...

  • Page 12

    Rrw1a • 12 23. Install r8, a 4.7k ohm resistor (yellow-violet-red). 24. Install q4, a 2n3904 transistor (marked 3904). This transistor is used to amplify the small amount of current provided from the ir detector to a large enough amount to drive the led indicator. The led will blink off when a signa...

  • Page 13

    Rrw1a • 13 testing the rrw1a method #1 to begin testing the rrw1a you will need the following items: ac power supply between 6 and 12vac or.. Dc power supply between 8 and 14vdc. A known functional ir remote control apply power to j1 and turn on the power switch (s1). The data led (d1) should turn o...

  • Page 14

    Rrw1a • 14 method #2 if you are not lucky enough to have a radio that can receive 433.42 mhz, the next best way to check the rrw1a transmitter is by using an rrw1b re- ceiver. You just need to have faith that you have assembled everything cor- rectly up to this point! It can be very difficult to tro...

  • Page 15

    Rrw1a • 15 using the rrw1 there really is no secret to using the rrw1 system. You primarily want to position the rrw1b in the stereo cabinet or on top of your components so the antenna can stick up. The rrw1a should be placed so that the ir sensor can see your remote control’s ir signal and is in th...

  • Page 16

    Rrw1a • 16.

  • Page 17

    Rrw1a • 17 rrw1a parts layout diagram.

  • Page 18

    Rrw1a • 18 troubleshooting guide problem: the green data led does not light. Solution: 1) the led (d1) may be installed backwards. Re-check its orien- tation as described in the assembly steps. 2) check pin 3 of u1 for +5v. If you have no power here, check the wall transformer to make sure the cente...

  • Page 19

    Rrw1a • 19 the ramsey kit warranty please read carefully before calling or writing in about your kit. Most problems can be solved without contacting the factory. Notice that this is not a "fine print" warranty. We want you to understand your rights and ours too! All ramsey kits will work if assemble...

  • Page 20: Ramsey Model No. Rrw1A

    Rrw1a • 20 rrw1a remote repeater kit quick reference page guide introduction ............................................4 theory of operation ..............................5 parts list ...............................................9 assembly .............................................10 testing ...