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Section 6: Assembling the Input Selector Board 
Carefully empty the contents of the envelope marked “PR-101 Input Selector” into a 
broad soup bowl. Note that the envelope may also say PR-102 Input Selector. This part of 
the design did not change between the PR-101 and the PR-102. 
 
Figure 30-Silkscreen side of the Input Selector Board shows component locations 
Install the Resistors 
Install the resistors using the same procedures outlined in the previous section. If you’re 
using a lead bending jig, all the resistors should be bent at a width of 0.45”.  
Designation  Value  Color Code  Done 
Brown, black, black, orange, brown
Brown, black, black, orange, brown
Brown, black, black, orange, brown
Brown, black, black, orange, brown