How do I change the FM frequency step?

To change the FM frequency step on your SC-HT640W stereo system, press the SELECTOR to select FM, then press and hold SELECTOR. After a few seconds, the display will show the current minimum frequency, and you can continue to hold the button down to change the minimum frequency and the step.

Can I use an outdoor antenna for better radio reception?

Yes, you can use an outdoor antenna if radio reception is poor. Remember to disconnect the antenna when the unit is not in use and avoid using it during an electrical storm.

How do I install an outdoor FM antenna?

If you're using an outdoor FM antenna, it should be installed by a competent technician. Refer to the official manual for detailed instructions on installing and reworking your outdoor antennas.

Using an outdoor antenna optional, Using the radio

∫HT640WFM.frequencybookPage25Thursday,Januarystep 5,200611:19AM

Main unit only

The step is f ctory-set to 0.2-MHz, b t you can change it to receive broadcasts allocated in 0.1-MHz steps.

1 Press [SELECTOR] to select “FM”.

2 Press and hold [SELECTOR].

After a few seconds the display changes to show the current minimum frequency. Continue to hold the button down. The minimum frequency changes and the step is changed.

To return to the original step, repeat steps 1 and 2.

[Note]

After changing the setting, previously preset frequencies will be cleared. Preset them again.