Pioneer F-504RDS Service Manual page 20

F-504RDS, F-504RDS-G
FRONT PANEL FACILITIES
TUNING knob
Use for tuning. To raise the frequency, turn in a clockwise
direction; to lower the frequency, turn counterclockwise.
AM: Frequency changes in 9kHz steps.
FM: Frequency changes in 50 kHz steps when FINE TUNING is
off, and 25 kHz steps when FINE TUNING is on.
In the Station Name input mode, and PTY Search mode and EON
PTY MODE, use to select characters and program type.
@ MEMORY button
Use to preset stations.
This is also used for FM or AM broadcast manual station name
character selection.
@ ANT A/B button
Selects between two antennas connected to the FM antenna A
and B terminals. (ANT- [AJ] or (ANT- [B]) indicator lights up.
NOTE:
This button's status is preset for each station in station memory.
@ RF ATT button
Set this button to on when receiving strong FM signals (nearby
stations) to reduce sound distortion (RF ATT indicator lights).
Normally, this button should be set to off.
This button does not affect AM reception.
NOTE:
This button's status is preset for each station in station memory.
@ IF BAND button
Each time this button is pressed, the bandwidth of the IF circuit
switches between "normal" and "narrow" for the FM band.
Set to NARROW in case of interference from other stations.
The NARROW indicator lights up. When not lit, normal filter
bandwidth is selected.
This button does not affect AM reception.
NOTE:
This button's status is preset for each station in station memory.
(3 MPX (multiplex) MODE button
id AUTO —> MONO 1
This button does not affect AM reception.
AUTO:
" AUTO " is not displayed.
Normaily leave in this mode for reception. When a stereo FM
broadcast is received, it will be automatically reproduced in stereo
sound and the STEREO indicator lights up.
NOTE:
When the signal level is too weak for reception, sound output is
automatically muted.
MONO:
MONDO indicator lights up.
To receive stereo broadcasts in monaural.
If there is too much noise during stereo reception of a weak signal,
you can reduce the level of noise by switching to MONO.
NOTE:
This button's status is preset for each station in station memory.
@ STATION CALL buttons
Use these buttons to preset stations and to receive the already
preset stations.
These are also used when performing direct access tuning.
@® CLASS button
Use to switch between preset memory classes 1 to 4. In each
class, 10 stations can be memorized using the STATION CALL
buttons, enabling a total of 40 stations to be memorized.
DIRECT button
When this button is pressed, the STATION CALL buttons function
as ten-key number buttons for direct input of the desired reception
frequency. Press again to cancel this mode.
@ MEMORY SCAN button
This button is used for station memory scan.
Press to receive currently selected class and preset stations for
a few seconds in sequence. Press again, and reception of the
station presently begin received will continue.
OPERATING DISPLAY
eonogas a900050G nece00saG 9000009 ee0eog0u 9000000 eeoanasn oo00000u ossoauG booaan.» BA0Rc00
ga0000000 ec0acc000 yuonoeone ougnaqna o00000n noonvenNS 90000000 Qo000000 e00R0000 a000000 20000900 agecocoa ao00ca00
oaocce00a
aqoo00000
oovccc0a
peeno00D 9000000 oecoc0na
@® RF ATT indicator
Stays fit while RF ATT button is on.
@ ANT -[A], ANT -[B] indicator
This indicates the selected antenna.
28
@ NARROW indicator
Stays lit while IF BAND button is set to NARROW.
When not lit, stays NORMAL.