Direct Tuning - Sony ICF-SW77 Service Manual

Direct Tuning
To select a "Frequency"
1 Receive a preset station by selecting a Station Name {see
page 12).
If a Station Name holds two or more "Frequencies", all the
Frequency numbers appear for one second when you
select that Station Name. Then the appropriate "Fre¬
quency"* is selected automatically and only one Frequency
number remains.
2 If the desired "Frequency" number is not selected, press
MEMORY FREQ/METER BAND STEP/CURSOR ^ o to
select the desired Frequency.
•How the appropriate Frequency is selected
The unit automatically selects one Frequency It there are two or more Frequen¬
cies in one Station Name.
If the current time is within the Program Time of one Frequency, that Frequency
is selected and the "ON AIR" indication appears. If the current time is not within
the Program Time of any Frequencies, the Frequency to be selected is one of
the following:
• the Frequency whose Program Time is the nearest to the current time (if "Pro¬
gram Time' is memorized in all the Frequencies under that Station Name)
■ the Frequency which was selected the last time (if there is a Frequency
without Program Time)
Note
If you want the unit to select the Frequency according to its Program Time,
make sure that the clock is set correctly
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If you know the frequency of a station to be received, you can
tune in the station easily by direct tuning
How to Tune In a Station Directly
1 Set POWER/LOCK to POWER.
2 Press ON/OFF.
The indications on the frequency display appear.
3 Select the desired band by pressing FM or AM.
For AM (SW, MW, or LW) reception, select the required AM
mode (See page 18.)
4
Input the frequency of the desired station by pressing
DIRECT TUNE/TIME INPUT numeric buttons.
5 Press EXE.
How to input a frequency
Example 1: AM 1,242 kHz
Press
®
)•*
O
*©*
0-»©-»(0
Frequency display
LIXLI i'l.T'l 1 ;
Example 2
Press
FM 92.5 MHz
0
)*
©'*©'*©*(0
Frequency display
| 9JSSS - ^
To input a frequency whose right-hand digits are all 0
Example 3: AM 2,000 kHz
Frequency display
1
-
esss.s
_ =;
' -.1- —1- -1 - ll II
Example 4: FM 90.00 MHz
(fm) (7) * (exe)
Frequency display
In case of 10,000 kHz and 20,000 kHz, however, press "1".
"
0
" •exE". and "2 ", "0", "EXE", respectively
In case of 200 kHz. 300 kHz,... 900 kHz, press "2", "0", "0",
"EXE"; "3". "0", "O ', "EXE", etc.
- After pressing a key. press the next key within 10 seconds.
If you do not, the previous station returns.
* With direct tuning, the frequency is displayed in
increments of the following intervals, depending on the
bands:
AM: 1 kHz
FM: 0.05 MHz
If you input a frequency between intervals, the
frequency at the interval just below is tuned in and displayed.
For example, if you input FM 92.540 MHz. FM 92.500 MHz is
tuned in and displayed.
tf the "TRY AGAIN'' indication appears
If you input a frequency outside the frequency range. 'TRY AGAIN' appears on
the display three times Then the frequency indication goes back to the
previously received Irequency
To Improve Receiving Conditions
Adjust the antenna as illustrated.
For FM reception
Pull out the telescopic antenna to expose its swivel base and
adjust its length, angle and direction.
For SW reception
Pull out the telescopic antenna to its full length and set it
vertically.
Note: If there is a fluorescent lamp just above the radio and
the reception is noisy, incline and shorten the telescopic
antenna.
For MW/LW reception
Retract the telescopic antenna. The built-in ferrite bar an¬
tenna activates. Since this antenna is directional, rotate the
unit horizontally for optimum direction.
Notes
• If reception is unsatisfactory with the telescopic antenna or the built-in temte
bar antenna, connect an external antenna. See page 29 for the details
• In vehicles or buildings, radio reception may be difficult or noisy. Try listening
near the window.
• If the received sound is distorted or noisy, adjust the antenna carefully. For
AM reception, set the SENS switch to LOCAL.
17