Ten-Tec SSB-CW-AM Instruction Manual page 44

Phase 2.0 Progress Test
2-50. Carefully plug the Display board into the sockets on the
solder side of the board. With the display facing you correctly,
the solder side of the main board faces up.
2-51. Plug the encoder cable into J4.
2-52. Plug the power switch cable into J2.
2-53. Connect the 1 SVDC power supply module to J1.
2-54. Turn on DC power: the display should read 15.000.0
(MHz), and only the [AM] or [SSB] LED should be lit. If the
display reads differently, perform the Microprocessor Reset (also
explained in the Operating Instructions) as follows:
Turn off DC power
Press and hold both the [Mode] and [MW] switch buttons
Turn on DC power
Release the switch buttons
2-55. Press the [MODE] button to select SSB mode and turn
the encoder shaft or knob slightly clockwise: the display should
advance to 15.002.5, 15.005.0, 15.007.5 and so forth in 2.5
kHz steps. lf the displayed frequency went DOWN (i.e. to
14.997.5, etc.), this means that the A and B wires to the
encoder are reversed. lf this is so, turn off DC power and fix
that problem before proceeding.
2-56. Press the IMODE] button to select AM mode; turning
the encoder shaft should advance the display in 5 kHz steps,
such as 15.010.0, 15.015.0, 15.020.0, etc.
2-57. Press the [SPEED] switch button. The "FAST" LED
below it should light up, and you should observe tuning in 100
kHz steps such as 15.100.0, 15.200.0, etc. You will notice that
only a few gentle turns of the tuning control shaft easily moves
you several MHz in either direction.
2-58. Set your VOM or DVM to read DC voltage. Locate the
"10V TP" test point and measure the voltage between that pad
and ground. Any of the four mounting holes on the board is a
convenient ground. The reading should be about 10 volts DC.
1254 Assembly - 23