In article . com,
"billcalley" wrote:

Another quick question for anyone who is familiar with the Kenwood
TS-530S with the 500Hz CW filter installed, but I noticed that unless
I move IF-SHIFT counter-clockwise, the audio output is not centered on
800 Hz, but more like 1200 Hz or so. Is this normal for Kenwoods?

Bill-

I haven't worked on the TS-530. In other similar models there are
typically three crystals associated with the product detector, one for
CW, one for USB and one for LSB. If the crystal is off frequency, it
will cause a signal to be offset from its correct place in the IF filter
passband.

For the TS-520, these crystals appear to be on the carrier unit along
the left side of the radio on the bottom. Each crystal has a parallel
trimmer capacitor. As you adjust the frequency of the detector's CW
crystal, the background noise will sound different as you tune across
the filter's passband.

You need a counter and a diagram to set the crystal frequencies
correctly. The TS-520 service manual I downloaded does not seem to have
directions to do it. I would connect the counter to the output of the
carrier unit, and adjust each crystal to its correct frequency, selected
with the front panel CW/USB/LSB switch. The IF-Shift control should be
centered when making these adjustments.

If you can't read the frequency marked on the crystal, it should appear
in the parts list.

Fred
K4DII