Vectronics VEC-422K - Manual (Page 18)

VEC-422K Owner's Manual SCA Decoder Kit
16
Important Note: The following steps will involve installing a jumper wire on the
bottom, or solder side, of the PC board. It is very important that the jumper wire
be connected precisely as directed!
Locate the 3” length of hookup wire.
Locate pin 6 of the 8-pin socket for the LM386 chip at location U2.
! ! 10."Trim the exposed wire from one end the insulated jumper wire to
about 1/16”. Solder this end of the insulated jumper wire to pin 6. Be
very careful not to bridge adjacent IC socket pins!
! ! 11."Solder the other end of the insulated jumper to the rear set of pins
(furthest from the shaft) for power SW1 on the solder side of the
board.