Gecko CLK036 Assembly & Operation Manual
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Contents
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DIGITAL CLOCK MODEL CLK036GEKCO INC. Rev 1.0 94. Assembly Notes4.1. TOOLSYou will need these tools to assemble your kit. Diagonal Cutters Needle Nose Pliers Flat Head Screwdriver Philips Screwdriver (for the enclosureonly) Pencil Soldering Iron (22 to 25WATTS)4.2. ASSEMBLY1. Follow the instructions carefully. Read theentire step before you perform eachoperation.2. Refer to the Pictorial and Detail Illustrationsfor help in performing the assembly steps.The illustrations are arranged in the propersequence, as called for in the assemblysteps.3. Pictorials show the overall operation for agroup of assembly steps: Details generallyillustrate a single step. When you aredirected to refer to a certain Pictorial “forthe following steps,” continue using thatPictorial until you are referred to anotherPictorial for another group of steps.4. Position all parts as shown in the Pictorials.5. Solder instructions are generally given onlyat the end of a series of similar steps. Youmay solder more often if you desire.6. Each circuit part in an electronic kit has itsown reference designator (R3, C8, etc.).Use these designators when you want toidentify the same part in the varioussections of the manual.7. SAFETY WARNING: Avoid eye injurywhen you cut off excessive leadlengths. Wear safety glasses orgoggles and hold the leads so theycannot fly toward your eyes.4.3. SOLDERINGSoldering is one of the most importantoperations you will perform while assemblingyour kit. A good solder connection will form anelectrical connection between two parts suchas a component lead and a circuit board foil. Abad solder connection could prevent anotherwise well-assembled kit from operatingproperly.It is easy to make a good solder connection ifyou follow a few simple rules:Use the right type of soldering iron. A 22 to 25-watt pencil soldering iron with a 1/8” or 3/16”chisel or pyramid tip works best.Keep the soldering iron tip clean. Wipe it oftenon a wet sponge or cloth: then apply solder tothe tip to give the entire tip a wet look. Thisprocess is called tinning, and it will protect thetip and enable you to make good connections.When solder tends to “ball” or does not stick tothe tip, the tip needs to be cleaned and re-tinned.NOTE: What solder to use, leaded or leadfree? The printed circuit boards in this kit areplated with lead free solder so if you choose touse lead free solder the complete assembly willbe RoHS compliant. Regarding kits though, it ismore difficult to solder with lead free materialdue to the higher melting temperature, so werecommend using a rosin core, radio-typesolder (60/40) or (63/37) tin-lead content for allof the soldering in this kit. If you decide to useleaded solder, be careful to wash your handsafter soldering and never eat, drink or smoke,until you wash thoroughly and you are donesoldering. Contain all materials that touchedleaded solder in a special container dedicatedfor that purpose. This waste can be disposedof at electronic-recycling events or contact yourwaste management company |
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