6
Installation
Before installing your JT-11 tuner, you should upgrade the radio's firmware to the latest version.
Consult the radio's manual and the Ten-Tec web site for instructions on how to do this. When the
firmware upgrade is complete, proceed with installing the tuner.
With your Jupiter powered down and disconnected from the DC power supply, remove the top
and bottom covers from the radio. Using a medium cross-point screwdriver, remove four screws
from the sides of the radio (two on each side). Using a cross-point or star tool, remove the small
screws from the back of the covers. Set these and all other screws aside for later reassembly; they
will all be reused. As you remove the top cover, take care not to damage the speaker. Disconnect
the speaker connector from the header and store the top and bottom out of harm's way.
Turn the radio bottom-up on your workbench with the front panel facing you. The DSP/LOGIC
board will be facing up. You will install the JT-11 tuner over this board, connecting it to the radio
via the four cables attached to the tuner (one black/white pair (Control), one red wire (+12 vdc),
and two coaxial cables (RF IN and RF OUT).
Step 1: Locate the connection header on the left side of the DSP/LOGIC board (viewed from the
front). Locate the two empty pins on this header; they are nearest the front of the radio. Route the
black/white wire pair through the notch in the back edge of the tuner shield, then under the tuner
to the connector header on the DSP/LOGIC board. Attach the connector to this header as shown;
be sure to observe the correct orientation of the connector (same as others already there).
Step 2: Route the red wire and both coax cables connected to the JT-11 through the notch in the
JT-11, then through the large grommet in the back left corner of the DSP/LOGIC board
compartment.
Step 3: Carefully slide the JT-11 into position above the DSP/LOGIC board, routing all the wires
through the notch in the back of the tuner shield; be careful not to pinch or foul any of the wires
connected to the tuner. The JT-11 assembly goes in with the components up (looking down into
the bottom of the radio), and with the large side-lip toward the front of the Jupiter.
