Tuner Section - Technics QUARTZ SA-R177 Service Manual

Synthesizer am/fm stereo receiver
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SA-R177
Mi FRONT PANEL CONTROLS AND FUNCTIONS
Tuner section
L
[1] Power switch (power)
[2] FM stereo indicator (FM stereo)
This indicator automatically illuminates when
an FM stereo
broadcast is being received.
Note:
It will not illuminate
if the FM
mode
selector
is set to the
monaural mode.
[3] Remote-control signal receptor
(remote sensor)
Receives the signals from the remote-control transmitter.
[4] Band selectors (band selector)
FM: Press this button to listen to an FM broadcast.
AM: Press this button to listen to an AM broadcast.
allocation: When
the AM
button
is pressed for about 4
seconds, the AM frequency step will change to 10 kHz per
step. (This unit is set to 9 kHz before shipment.) In order to
return to the original frequency indications, press this button
for about 4 seconds again.
[5] Preset channel matrix display (tuner matrix)
When
an entry is made
to the memory,
the figure's outer
frame illuminates.
The outer frame of the "channel"
continuously.
now being received flashes
[6] Band indicators (AM/FM)
Indicates the selected band.
Memory indicator (memory)
This
indicator
illuminates
when
the
memory
button
is
pressed.
[8]Audio input selector/frequency display
(input selector/frequency)
Displays the selected source or broadcast frequency.
Geers
| Pero
[9] Quartz-lock indicator (quartz lock)
This indicator illuminates when the unit is tuned precisely to a
broadcast station.
Memory button (memory)
This button is used when presetting broadcast station frequen-
cies into memory.
[11] Group registration buttons (group)
These
buttons
are used
to assign
memory
presets to the
desired group or to select the desired group.
[12] Music-scan/group-search button
(-M. scan/— group search)
This button is used to scan the memory presets within a group
(for about three seconds each) or to search for the desired
group.
[13] Preset-tuning buttons (1—0)
(24 channel random preset tuning)
These buttons are used to preset broadcast frequencies into
the memory of this unit, and to recall the desired Preset sta-
tions.
[14] Tuning buttons (tuning)
These buttons are used for tuning to the desired
broadcast
station. !f the button is pressed momentarily and then releas-
ed, the frequency will change at intervals of 0.05 M Hz for FM
and 9 kHz (or 10 kHz) for AM.
fis] FM mode selector (FM mode)
This unit automatically switches to the stereo medé when an
FM
stereo broadcast
is received.
This selector
iS used to
select
the mode
(stereo or monaural)
of FNM
broadcast
signals.

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