d. Signal from KY-57 to RT.
The signal is applied to the KY-57 RAD
jack pin E, through the switch and out on pin D.
Then is applied back
through the CX-13061 to the J-3513/U J3 pin R, through the K3 to J6 pin R,
through CX-13064/U to the RT X-MODE pin E (Figure 68).
circuits on your system diagram.)