Laser Light Show - All Spectrum Electronics
Contents
1. construction methods To assist customers in such situations Ramsey Electronics Inc reserves the right to solve their needs on a case by case basis The repair is 36 00 per hour regardless of the cost of the kit Please understand that our technicians are not volunteers and that set up testing diagnosis repair and repacking and paperwork can take nearly an hour of paid employee time on even a simple kit Of course if we find that a part was defective in manufacture there will be no charge to repair your kit But please realize that our technicians know the difference between a defective part and parts burned out or damaged through improper use or assembly 4 REFUNDS You are given ten 10 days to examine our products If you are not satisfied you may return your unassembled kit with all the parts and instructions and proof of purchase to the factory for a full refund The return package should be packed securely Insurance is recommended Please do not cause needless delays read all information carefully LLS1 20 Manual Price Only 5 00 Ramsey Publication No LLS1 Assembly and Instruction manual for RAMSEY MODEL NO LLS1 Laser Light Show REQUIRED TOOLS Soldering Iron WLC100 Thin Rosin Core Solder RTS12 Needle Nose Pliers MPP4 or RTS05 Small Diagonal Cutters RTS04 ADDITIONAL SUGGESTED ITEMS Helping Hands Holder for PC Board Parts HH3 Technician s Tool Kit TK405 Desolderin2. nylon cable ties LLS1 8 LLS1 PC BOARD ASSEMBLY STEPS 1 Take a look at the layout diagram Let s start with the bottom part of the board where all the circuitry is first before moving on to the motors and mirrors Install J2 the RCA jack at the bottom left of the board 2 Next install C9 470 uF electrolytic capacitor next to J2 Watch the po larity Make sure the lead soldered next to the is not marked with a band 3 Install C5 10 uF electrolytic capacitor between J2 and C9 Watch po larity 4 Install U3 LM386 audio amplifier marked LM386N above C9 Be sure the notch at one end of the IC lines up with the notch on the board draw ing 5 Install C10 01 uF ceramic disk capacitor marked 103 right of C9 6 Install C4 1 uF electrolytic capacitor next to C9 Watch that polarity 7 Install Q2 BS170 power MOSFET marked BS170 next to C10 Be sure they go in the right way The flat side of the transistor should line up with the flat side of the drawing facing C10 8 Install U2 a 555 timer IC to the right of Q2 Make sure it goes in the right way following the dotted or notched end of the part and the silk screen or parts layout diagram The dot or notch indicates pin 1 9 Install D2 1N4148 diode glass package next to C4 Make sure the band on it lines up with the band on the board layout 10 Install R6 1K ohm resistor brown black red 11 Install C3 0 47 uF electrolyti
3. part to be mounted is the speaker The speaker goes in the upper left hand corner of the board 40 The speaker sits upright with the edge of its magnet touching the rec tangle on the board and the edge of the cone touching the single line on the board To secure the speaker so that it does not move use two pieces of double sticky foam tape cut your included foam tape into three pieces two for this step and a smaller piece the mirror you re going to mount to the speaker Stick one under the edge of the speaker cone and one un der the edge of the magnet This allows the speaker to be held in place but also allows you to tweak its position when you re using the audio mode 41 You now need to solder the power wires on the speaker and two mo tors down to the board The wires from the motor with the big mirror go into pads P2 and P1 The power wires on the motor with the small mirror go into pads P3 and P4 The speaker wires go into pads P5 and P6 For all of these it doesn t matter which color wire goes in what hole The color coding is there so you can switch them later if you want to reverse the mo tor directions LLS1 14 42 Soldering in the laser power wires is a little trickier Unscrew the back of the pointer where the batteries go You need to solder a wire on the spring in there Cut a length of wire about 1 1 2 inches long Strip both ends Make a little hook on one end and hook it onto the spring inside the pointer Rea
4. 3 COPYRIGHT 2003 by Ramsey Electronics Inc 590 Fishers Station Drive Victor New York 14564 All rights reserved No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics Inc Printed in the United States of America LLS1 3 Laser Light Show Ramsey Publication No LLS1 Manual Price Only 5 00 TABLE OF CONTENTS Introduction to the LLS1 4 LLS1 Circuit Description 4 Learn As You Build Kit Assembly 5 Parts List 6 Assembly Steps 8 LLS1 Parts Layout Diagram 10 LLS1 Schematic 11 Setup and Testing 16 Troubleshooting Guide 17 Ramsey Kit Warranty 19 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR RAMSEY ELECTRONICS INC 590 Fishers Station Drive Victor New York 14564 Phone 585 924 4560 Fax 585 924 4555 www ramseykits com LLS1 4 WARNING This kit uses a CDRH class IIIa laser which although not particularly dangerous it is conceivable that it could cause eye damage under prolonged direct viewing DO NOT STARE INTO THE BEAM INTRODUCTION Now you can create your own laser li
5. LLS1 1 Laser Light Show Ramsey Electronics Model No LLS1 Easy to build and fun to play with Runs on 8 12VDC Motor speed controls to change pattern Audio mode modulates pattern to music Safe polycarbonate mirrors won t break Imagine creating your own laser light show at home using a kit that you built Or connect the kit to your stereo and let the music change the patterns for you You can do both with this safe and easy to build kit LLS1 2 PARTIAL LIST OF AVAILABLE KITS RAMSEY TRANSMITTER KITS FM10A FM25B FM Stereo Transmitters AM1 AM25 Transmitter RAMSEY RECEIVER KITS FR1 FM Broadcast Receiver AR1 Aircraft Band Receiver SR2 Shortwave Receiver AA7 Active Antenna SC1 Shortwave Converter RAMSEY HOBBY KITS SG7 Personal Speed Radar SS70A Speech Scrambler Descrambler TT1 Telephone Recorder SP1 Speakerphone MD3 Microwave Motion Detector PH14 Peak hold Meter LC1 Inductance Capacitance Meter RAMSEY AMATEUR RADIO KITS HR Series HF All Mode Receivers DDF1 Doppler Direction Finder Kit QRP Series HF CW Transmitters CW7 CW Keyer QRP Power Amplifiers RAMSEY MINI KITS Many other kits are available for hobby school scouts and just plain FUN New kits are always under development Write or call for our free Ramsey catalog LLS1 Laser Light Show Ramsey Electronics publication No LLS1 Rev 1 1a September 200
6. aser light hits the mirror after it bounces off the second motor You need to have your kit turned on with laser shining and motors run ning so you can tell when the speaker mirror is aligned properly When you are sure you ve got it right push the mirror down a little more firmly so it stays If you need to readjust it later just be careful to SLOWLY remove it so it does n t tear off the speaker cone When everything is cool you should get a spi rograph pattern on the wall that changes with motor speed You can now plug a line level audio source into the RCA jack and the speaker will vibrate to the music causing the mirror to jiggle and shake up the spirograph pattern If eve rything is not cool then I the kit manual author will rescue you in the next section Little pieces of double stick tape LLS1 17 TROUBLESHOOTING GUIDE Okay let s get the easy stuff out of the way first If a motor isn t spinning check the 555 timers and make sure they are in the right way Next check transistors and diodes for proper orientation Lastly check the electrolytic caps If the laser isn t on make sure you soldered that spring connection well then push on the laser pointer button to make sure the cable tie is pushing the switch hard enough If it isn t tighten it up or fiddle with it until it pushes the button down well Adjusting the mirrors is the tricky part of the kit The two motors are the easi est and should be done first Af
7. c capacitor above U2 Watch polarity 12 Install R8 1K ohm resistor brown black red just to the right of U2 13 Install C1 1 uF capacitor to the right of R8 14 Install Q1 the other BS170 power MOSFET above C1 Make sure it goes in the right way flat side facing R8 15 Install R5 1K ohm resistor brown black red above Q1 16 Install D3 1N4148 glass package next to C1 Line up the band with the band on the board drawing 17 Install U1 the second 555 timer marked LM555N right above D3 LLS1 9 18 Install C2 0 47 uF electrolytic capacitor next to R5 19 Install R7 1K ohm resistor brown black red next to U1 20 Now lets solder in the three potentiometers that adjust the motor speed and amplifier volume Install R1 R2 and R3 at the bottom of the board Be sure they re positioned correctly and flush to the PC board be fore soldering Don t be afraid to use plenty of solder on those tabs 21 Install J1 the power jack above J2 22 Install D4 and D5 1N4002 diodes above J1 Line up the bands as usual 23 Install C11 1 uF ceramic disk capacitor 104 to the right of D4 24 Install R9 2 ohm resistor red black gold next to C11 25 Install C12 220 uF electrolytic capacitor to the right of R9 Watch that polarity 26 Install C8 10 uF electrolytic capacitor under C12 27 Install R11 22 ohm resistor red red black 28 Install R10 the other 22 ohm resistor red red b
8. ch your soldering iron in there and solder it Be careful not to touch anything other than the spring with the soldering iron otherwise meltage and burnage may occur bad Now solder the other end of the wire into the pad shown in the picture on the previous pages DO NOT fol low the silkscreen on the board or the parts layout diagram for this step the silkscreen is incorrect You must follow the diagram on page 12 for correct placement of the wires Take the alligator clip and strip the end of the wire Solder it into the pad shown in the same picture Clip the clip end onto the laser pointer tube where the threads are The body of the laser pointer is tied to 5 volts and the spring is ground 43 There s one last issue with the laser pointer The power button is a momentary switch so you will probably want a way to make it stay on for your light show The best way is to take the included cable tie and cut a little piece about 1 2 inch off the end Put this on the button and attach the cable tie around the body of the laser pointer over the button and the little cable tie cutoff piece This should keep the button pressed so when you turn your kit s power on the laser will always be on Tape under speaker edge LLS1 15 44 Now take two of the cable ties and the last piece of foam Place the foam on the outline and use the cable ties to hold it down tight to the PC board 45 The last thing to attach are the rubber feet Note th
9. d through your manual carefully all information required to properly build and test your kit is contained within the pages However customer satisfaction is our goal so in the event that you do have a problem take note of the following 1 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 its sad to say that our human construction skills have not But on rare occasions a sour component can slip through 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 Defective parts will be replaced promptly at our expense If you suspect any part to be defective please mail it to our factory for testing and replacement Please send only the defective part s not the entire kit The part s MUST be returned to us in suitable condition for testing Please be aware that testing can usually determine if the part was truly defective or damaged by assembly or usage Don t be afraid of telling us that you blew it we re all human and in most cases replacement parts are very reasonably priced 2 MISSING PARTS Before assuming a part value is incorrect check the parts listing carefully to see if it is a critical value such as a specific coil or IC or whether a RANGE of values is suitab
10. e 4 large holes near the motor laser pointer speaker section of the PC board this is where the rubber feet should be stuck In at least one place you may have to stick a foot over a couple of solder joints but that shouldn t be a problem Okay enough of all of this stuff Let s turn it on Cable tie cutoff Power button LLS1 16 SETUP AND TESTING Plug in an 8 12V DC power supply into jack J1 Turn the kit on by pressing switch S1 Turn R1 and R2 up and down to vary the motor speed Now that your laser is on and your motors are spinning it s time to adjust the mirrors You just want to make sure that the laser beam hits the little mirror then bounces off the bigger mirror on the other motor You want to make sure that the light falls as completely on the mirrors as possible and doesn t go off an edge If it does your laser patterns will have a missing chunk You can adjust the mirrors by turning and sliding the motors around a bit and moving them towards and away from each other slightly It may be necessary to unsolder the wires holding them to move them around Once you get the two motor mir rors adjusted right you need to stick the last big mirror onto the speaker cone This is done with good ol double stick foam tape Cut the remaining piece into two little pieces and stick them on the back of the mirror as shown Now LIGHTLY put the mirror on the speaker roughly where it is in the picture The point here is that the l
11. g Braid RTS08 TOTAL SOLDER POINTS 123 ESTIMATED ASSEMBLY TIME Beginner 2 hrs Intermediate 1 hrs Advanced 30 min RAMSEY ELECTRONICS INC 590 Fishers Station Drive Victor New York 14564 Phone 585 924 4560 Fax 585 924 4555 www ramseykits com TABLE OF CONTENTS Introduction to the LLS1 4 LLS1 Circuit Description 4 Learn As You Build Kit Assembly 5 Parts List 6 Assembly Steps 8 LLS1 Parts Layout Diagram 10 LLS1 Schematic 11 Setup and Testing 16 Troubleshooting Guide 17 Ramsey Kit Warranty 19
12. ght show at home Your LLS1 will make different spirograph patterns on your wall A laser beam is emitted from a laser pointer and bounces off two spinning mirrors and a mirror mounted to a speaker The spinning mirrors bend the beam in circular motions to create the spirograph patterns The mirror mounted on a speaker will vibrate to an audio source and cause the spirograph patterns to jiggle to the music The motor speeds are adjustable to create different patterns and the speaker volume can be adjusted to give more or less audio modulation to the laser beam LLS1 CIRCUIT DESCRIPTION The LLS1 can be broken up into 2 parts the motor controls and the audio section There are two motors and each one has a controller The controller is an oscillator circuit made with the timeless 555 timer Refer to the schematic As you can see there are two identical circuits at the top of the page Each one has a 555 timer that pulses a power transistor The power transistor then drives a motor The power transistor is important because if the 555s were used to drive the motors directly they would overheat Potentiometers R1 and R2 adjust the duty cycle of the 555 s pulses and this changes the motor speed At the bottom of the page is the audio amplifier that runs the LLS1 s speaker Okay let s get building LLS1 5 RAMSEY Learn As You Build KIT ASSEMBLY In order to make good solder connections on the LLS1 printed circuit board you sho
13. iny completed connections LLS1 6 LLS1 PARTS LIST Sort and check off the components in the boxes provided We do our best to pack all our kits correctly but it is possible that a mistake has occurred and we missed a part Please note that physical descriptions of parts are for those currently being shipped Sometimes the parts in your kit may have a different appearance but still have the same values RESISTORS 4 1K ohm resistors brown black red R5 R6 R7 R8 2 22 ohm resistors red red black R10 R11 1 100 ohm resistor brown black brown R4 2 10K ohm potentiometers R1 R2 1 100K ohm potentiometer R3 1 2 ohm resistor red black gold R9 CAPACITORS 2 0 47 uF electrolytic capacitors C2 C3 2 1 uF electrolytic capacitor C1 C4 4 10 uF electrolytic capacitor C5 C6 C7 C8 1 01 uF ceramic disk capacitor marked 103 C10 1 1 uF ceramic disk capacitor marked 104 C11 1 220 uF electrolytic capacitor C12 1 470 uF electrolytic capacitor C9 SEMICONDUCTORS 2 555 Timer IC marked NE555N U1 U2 2 1N4002 diode D4 D5 2 1N4148 diode D2 D3 1 7805 voltage regulator VR1 1 LM386N audio amplifier U3 2 BS170 power MOSFET Q1 Q2 MISCELLANEOUS 1 red black twisted wire 15 inches 1 22AWG wire approximately 4 ft 1 power jack J1 1 RCA jack J2 1 pushbutton switch S1 1 length of double sticky foam tape 2 LLS1 7 2 dc motors 1 8 ohm speaker 2 big mirrors 1 small mirror 1 foam piece 4 rubber feet 2
14. lack 29 Install VR1 the voltage regulator This powers the LLS1 30 Install C6 and C7 10 uF electrolytic capacitors right above VR1 31 Install S1 the power switch to the right of VR1 32 Install R4 100 ohm resistor brown black brown right above C6 Whew That s it for the circuit assembly Now it s time to attach the motors and mirrors to the board 33 You ll need to cut some wire to hold the little plastic mirrors on to the motors Cut a piece about 2 1 4 long and strip the insulation off Wind it around the shaft of one of the motors about halfway on the shaft as shown in the picture Now cut another 2 1 4 piece of wire and wind it as you did before Note that the picture on page 12 exaggerates the spacing of the wire just so you can see how it goes on In reality they should be wound tightly and close together or on top of each other Now solder the two coils onto the motor shaft Don t be afraid to use a lot of heat These motors are tough It will take a bit to melt the solder onto the shaft Now peel off the protective plastic on the mirror and bend the ends of the wires up and around the edge of the mirror so they hold it like a four fingered claw You want to make sure they pinch a little at the edge of the mirror LLS1 10 LLS1 BOARD PARTS LAYOUT DIAGRAM LLS1 11 LLS1 MAIN BOARD SCHEMATIC LLS1 12 Foam under here Speaker goes here Solder wire from spring Solder wire from a
15. le such as 100 to 500 uF Often times common sense will solve a mysterious missing part problem If you re missing five 10K ohm resistors and received five extra 1K resistors you can pretty much be assured that the 1K ohm resistors are actually the missing 10 K parts Hum m m I guess the red band really does look orange Ramsey Electronics project kits are packed with pride in the USA If you believe we packed an incorrect part or omitted a part clearly indicated in your assembly manual as supplied with the basic kit by Ramsey please write or call us with information on the part you need and proof of kit purchase 3 FACTORY REPAIR OF ASSEMBLED KITS To qualify for Ramsey Electronics factory repair kits MUST 1 NOT be assembled with acid core solder or flux 2 NOT be modified in any manner 3 BE returned in fully assembled form not partially assembled 4 BE accompanied by the proper repair fee No repair will be undertaken until we have received the MINIMUM repair fee 1 2 hour labor of 18 00 or authorization to charge it to your credit card account 5 INCLUDE a description of the problem and legible return address DO NOT send a separate letter include all correspondence with the unit Please do not include your own hardware such as non Ramsey cabinets knobs cables external battery packs and the like Ramsey Electronics Inc reserves the right to refuse repair on ANY item in which we find excessive problems or damage due to
16. lligator clip Solder Top View Pinch LLS1 13 so it is held securely Remember the mirrors are made out of polycarbon ate they won t break 34 Now attach the small mirror to the other motor in the same way ex cept the two wire lengths are shorter 1 3 4 each 35 Now you need to solder on power wires for the motors and speaker Cut the red black wire into thirds Strip the ends and solder them onto the motor and speaker tabs It doesn t matter which tab gets black or red wire 36 It is time to mount the motors to the board Take the foam and cut it into three equal size rectangles Put two of the foam pieces on top of each other on the board in the silkscreened box towards the center next to the outline for the laser pointer and put the motor with the big mirror on top of the foam pieces on the outline 37 Cut two lengths of wire each about 4 long Strip the ends and solder them on either side of the motor to hold it snugly down Push down on the motor a little when you solder the wires so the foam is compressed just a little bit This will ensure a snug fit You can do this by soldering in the wires on one side of the motor pushing down the motor a little then sol dering in the wires on the other side You ll want this motor to point slightly downward toward the other motor 38 Solder down the other motor in the same way except with no foam underneath and cut the wires to 3 1 4 long 39 The last
17. ter that the speaker mirror has to be adjusted I find that the mirror sits a little higher than center and hangs off the speaker cone a little more than 1 8 inch The important thing is that when the laser is running and the motors spinning you can see the laser pattern on the speaker mirror and none of it hangs off Note do not direct the laser right into your eye as you adjust it CONCLUSION We sincerely hope that you will enjoy the use of this Ramsey product As al ways we have tried to compose our manual in the easiest most user friendly format that is possible As our customers we value your opinions comments and additions that you would like to see in future publications Please submit comments or ideas to Ramsey Electronics Inc Attn Hobby Kit Department 590 Fishers Station Drive Victor NY 14564 or email us at techsupport ramseymail com And once again thanks from the folks at Ramsey LLS1 18 LLS1 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 assembled properly The very fact that your kit includes this new manual is your assurance that a team of knowledgeable people have field tested several copies of this kit straight from the Ramsey Inventory If you need help please rea
18. uld practice good soldering techniques Use a 25 watt soldering pencil with a clean sharp tip Use only rosin core solder intended for electronics use Use bright lighting a magnifying lamp or bench style magnifier may be helpful Do your work in stages taking breaks to check your work Carefully brush away wire cuttings so they don t lodge between solder connections We have a two fold strategy for the order of the following kit assembly steps First we install parts in physical relationship to each other so there s minimal chance of inserting wires into wrong holes Second whenever possible we install in an order that fits our Learn As You Build Kit building philosophy This entails describing the circuit that you are building instead of just blindly installing components We hope that this will not only make assembly of our kits easier but help you to understand the circuit you re constructing For each part our word Install always means these steps 1 Pick the correct part value to start with 2 Insert it into the correct PC board location 3 Orient it correctly follow the PC board drawing and the written directions for all parts especially when there s a right way and a wrong way to solder it in Diode bands electrolytic capacitor polarity transistor shapes dotted or notched ends of IC s and so forth 4 Solder all connections unless directed otherwise Use enough heat and solder flow for clean sh
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