Instruction/ maintenance manual of the product RRW1A Ramsey Electronics
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RRW1A • 1 Ramsey Electr onics Model N o. RR W1A Have you ever been fr ustrated wi th the rang e of your r emote controls? Tir ed of havi ng to bounc e your IR r emote off of ceilings an d walls? D o.
RRW1A • 2 RAMSEY TRANSMITTER KITS • FM100B Professio nal FM Ster eo Transmitter • FM25B Sy nthesized Stereo FM Tr ansmitter • MR6 Model Roc ket Tracking Transmitter • TV6 Television Trans mi.
RRW1A • 3 RR W1A WIRELESS REMOTE REPEA TER KIT (T ransmitter) Rams ey Publicat ion No. MRRW 1A Pri ce $5 .00 TABLE OF CONTENTS Introduct ion ............................................ 4 Circuit T heor y ........................................ 5 Learn As You Bu ild .
RRW1A • 4 RRW1 A INTRODUCT ION W elcome to the RRW 1A kit (and if you don’t have t he tim e, the wired a nd tested ver sion). L et’s tak e a m oment to help you under stand the b asic work ings of IR rem ote contr ols and h ow the RRW 1 pair works .
RRW1A • 5 RRW1 P A IR T HEORY OF OPER A TION The RRW 1A (tr ansmitter b oard) m ay look quite sim ple but t here is ac tuall y quite a lot being done ins ide eac h one of the parts .
RRW1A • 6 W hen the IR detector on the RRW 1A ( transm itter board) “ sees” a 38 k Hz IR signal, t he output of the det ector goes low (it is invert ed).
RRW1A • 7 RAMSEY “LE ARN-AS-YOU-BUILD” A SSEM BLY STR A TEGY Be sure to read thr ough all of the steps and ch eck the boxes as you go to be sure you didn't m iss an y important ones .
RRW1A • 8 This project will no t work as well as you m ay wish if you just s lap it toge ther without f ollowing go od ass embl y tec hniques and all of the inst ructions . No matter how clear we ma y th ink our manual is , if you have an y questio ns give us a call at the factor y instead of j umping to co nclusions .
RRW1A • 9 PARTS SU PPLIED WIT H YOUR RRW1 A (TRANSMITT ER) KIT Capacitors 1 2.2 pF cer am ic capacitor (mark ed 2.2) [C7] 1 8.2 pF cer am ic capacitor (mark ed 8.2) [C8] 3 47 pF cer amic capacitor s (m arked 47) [C1,4,6 ] 1 0.001 uF ceram ic capacitor (mark ed .
RRW1A • 10 ASSE M BLY OF THE RRW1A Assem bly of the RRW 1A is straight f orward bu t it do es requir e som e time and patienc e. T o get our be arings, we will start b y mountin g the po wer jack and move o n from there. It serves as a good ref erence poi nt for the other parts.
RRW1A • 11 10. Instal l R4, a 22 K ohm resistor ( red-red-ora nge). 11. Instal l C4, a 47 pF cera m ic capacitor (m arked 47) . This capacitor works with Q1 to isolate the anten na from the osc illator s ection.
RRW1A • 12 23. Instal l R8, a 4.7 K ohm resistor ( yellow-violet-r ed). 24. Instal l Q4, a 2N 3904 tra nsistor ( mark ed 3904). T his transistor is us ed to amplif y the sm all am ount of c urrent provid ed from the IR detec tor to a large en ough am ount to dri ve the LED indicat or.
RRW1A • 13 TEST ING T HE RRW1 A Method #1 To begin testing t he RRW 1A you will nee d the foll owing it em s: AC Power s uppl y between 6 and 12V AC or.. DC power supp ly bet ween 8 and 14 VDC. A known f unctiona l IR rem ote control Apply po wer to J1 an d turn on the po wer switch (S1).
RRW1A • 14 Method #2 If you are not luck y enough to have a r adio th at can rec eive 433.4 2 MHz, the next best way to chec k the RRW 1A transm itter is by using an R RW 1B re- ceiver.
RRW1A • 15 USING THE RRW1 There reall y is no secret to using the RRW 1 system. You prim aril y w ant to position the RRW 1B in the stereo c abinet or o n top of your com ponents so the antenna ca n stick up.
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RRW1A • 17 RRW1 A PA RT S LAYOUT DIAGR A M.
RRW1A • 18 TROUBLESHOOTING GUIDE PROBLEM: T he gree n Data LE D does not l ight. SOLUTI ON: 1) T he LED (D 1) m ay be installed back wards. Re-c heck its orien- tation as describe d in the a ssembl y steps.
RRW1A • 19 The Ramsey Kit Warr anty Please read carefully BEFORE c alling or writing in about y our kit. Most proble ms can be solved without contacting the factory. Notice that this is not a " fi ne print" warranty. We want you to understand your rights and ours too ! All Ramsey kits w ill work if assembled properly.
RRW1A • 20 RRW1 A REMOTE REPE ATER KIT Quick Refe rence Page Guid e Introduction ............................................ 4 Theor y of Operation .............................. 5 Parts List ............................................... 9 Assem bly .
An important point after buying a device Ramsey Electronics RRW1A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ramsey Electronics RRW1A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ramsey Electronics RRW1A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ramsey Electronics RRW1A you will learn all the available features of the product, as well as information on its operation. The information that you get Ramsey Electronics RRW1A will certainly help you make a decision on the purchase.
If you already are a holder of Ramsey Electronics RRW1A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ramsey Electronics RRW1A.
However, one of the most important roles played by the user manual is to help in solving problems with Ramsey Electronics RRW1A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ramsey Electronics RRW1A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
