KENWOOD TS-950SD (02) PDF MANUAL

KENWOOD TS-950SD (02) PDF SUMMARY:

What should be done before starting the modification?

Disconnect the power cord and antenna. Remove the top and bottom covers (18 screws).

How do I locate the I.F. board?

Locate the I.F. board on the bottom of the transceiver. It is the back right board of the 4 boards on the bottom of the transceiver.

How do I locate L36?

Locate L36 by connector CN17 on the I.F. board.

What is the first step of the modification?

Install and solder into place a 4pF trimmer capacitor across L36.

What is the second step of the modification?

Install a 2.2uH coil and 40pF trimmer capacitor in series from the output of L36 to ground. The can of L31 can be used for ground.

What should be done to prepare the TS-950S/SD for alignment?

Connect the TS-950S/SD to a power meter and 50 ohm load. If you are working on the TS-950S Digital, connect the DSP cables on the bottom cover to the back panel.

How do I set up the transceiver for the highest image level condition?

In the CW mode, adjust the front panel power control for 150W while the ALC level is just at the starting point on the meter.

How do I set up a monitor receiver for image adjustment?

Using a monitor receiver with narrow filters installed and AGC set to off, tune the receiver to the image frequency.

How should the trimmer capacitors be adjusted?

Alternately adjust the two trimmer capacitors until the image cannot be heard. This procedure may need to be repeated several times.

What should I do with the wire harness after adjustments?

Push the wire harness around the I.F. board toward the chassis of the transceiver.

What is the final step?

Assemble the transceiver.