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3.5 Description of Switches
Switch and Key Matrix
os
LS
Momentary switch (Keyboard SW)
C port
C port
Switches
0-9:
these
switches
are
used
for
read/write
operations
for memories
CH.1-8,
timer
set-up,
and
read/write operations for EVERY ON/OFF and ONCE
ON/OFF data.
,
:
for more
than.1
second, continuous frequency scan-
ning starts.
EM/AM/PHONO/AUX:
select
input
program
sources.
The FM and AM
selector switches are shared
by the
9 and 0 numerical keys.
C/E CALL:
recalls time and frequency data for 5 seconds,
C/F
DISPLAY:
switches
between time and frequency
display.
8 part
Alternator switch (Push SW, Rotary SW]
+5V
Vee
44-~21
pin
9~12 pin
Figure 8.
SLE:
used to set up the sleep timer function. This switch
function is independent of the timer function.
.
AUTO/MANUAL:
switches between the muting and scan-
ning functions in the FM mode.
.
B2/B3:
select scan stepping
intervals with
the following
combinations:
AM (kHz) |FM {kHz}
IF: controls the intermediate frequency in the FM mode
over +25 KHZ.
CANCEL: WRT, REA, C, SET, MANUAL.
TIMER:
selects timer modes.
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