Ramsey Electronics PPM3 用户手册

PPM3 Page 8 

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 steps. Although you may be in a hurry 
to see results, before you switch on the power check all wiring and 
capacitors for proper orientation. Also check the board for any possible 
solder shorts, and/or cold solder joints. All of these mistakes could have 
detrimental effects to your kit - not to mention your ego! 

 
Kit building tips:   

Use a good soldering technique - let your soldering iron tip gently heat the 

traces to which you are soldering, heating both wires and pads 
simultaneously. Apply the solder to the iron and the pad when the pad is hot 
enough to melt the solder. The finished joint should look like a drop of water 
on paper, somewhat soaked in.   

Mount all electrical parts on the top side of the board provided. To install 

parts, the component should be placed flat to the board, and the leads 
should be bent on the backside of the board to prevent the part falling out 
before soldering (1). The part is then soldered securely to the board (2-4), 
and the remaining lead length is clipped off (5). Notice how the solder joint 
looks close up, clean and smooth with no holes or sharp points (6).