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1.  TB5 and TB6 are inputs that can be used if you buy the phono preamp option 
card. 
2.  TB7 and TB8 will be wired to the front panel input connector at a later step 
3.  TB9 and TB10 will be wired to the input of the tone/volume board in a later step. 
4.  TB11 and TB12 will be wired to the output of the tone volume board in a later 
step 
5.  TB13 will be wired to plus and minus 12 Volt power and ground in a later step. 
 
Figure 34-Assembled Input Selector board (some kits have black relays) 
Install Input Selector Signal Wiring 
If you’re not experienced with the preparation of shielded cable, please read Appendix 1 
before you go on. 
 
Locate the more slender gray-jacketed cable
7
. It is shielded cable. Beneath the gray jacket 
you’ll find: 
  Red 22 AWG stranded wire 
  Black 22 AWG stranded wire 
  Foil shield 
  Bare stranded 22 AWG drain wire 
  Fuzzy string 
 
7
 The kit also has 18 AWG shielded cable. It’s thicker than the 22 AWG that you’ll use here, and is used 
elsewhere, so don’t use the 18 AWG shielded cable here.