Front Panel Facilities - Pioneer SX-3800 Service Manual

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2 . T R O N T P A N E L F A C I L I T I E S
c P OW ER S W TT C H
Set this switch to ON to supply power to the receiver.
There will be a short delay when it is set to ON, because
the muting circuit has been actuated to suppress the
unpleasant noise that is sometimes generated when the
power is switched on and off .
O spERrER swtrcHEs
Depress the switch corresponding to the speakers con-
n e c t e d t o t h e S P E A K E R S t e r m i n a l s ( A o r B ) o n t h e r e a r
p a n e l .
You can depress both of these buttons to listen to the
sound from two pairs of speaker rystems at the same
t i m e .
@ gnlcHrNEss sELEcroR
Use this switch to select the brightness of the power
m e t e r a n d t h e f r e q u e n c y d i s p l a v .
B R I G H T : W h e n u s i n g t h e r e c e i v e r i n d a y l i g h t o r o t h e r
D I M :
b r i g h t l o c a t i o n s .
At night or in dark locations when the exist-
i n g b r i g h t n e s s i s t o o h i g h .
C I P O W E R M E T E R
This meter allows you to read out the rated power level
on the fluorescent display tube when speakers with a
nominal impedance of g ohms are connected to the
speaker terminals.
@ o r e l P o I N T E R
This pointer indicates the broadcasting stations.
@ bunnrz LocKED tNDtcAToR
This indicator lights up after the optimum tuning point
has been obtained and displays that the receiving state is
s t a b i l i z e d b y t h e b u i l t - i n q u a r t z l o c k c i r c u i t .
O T T U S T E R E O I N D I C A T O R
This indicator lights up when receiving an FM stereo
program if the FM muting off switch is released.
, o S I G N A L I N D I C A T O R
This indicator lights in sequence from left through right
during the tuning of an AM or FM broadcast in accord-
ance with the strength of the signals being received.
T h e o p t i m u m t u n i n g p o i n t i s w h e r e t h e m a x i m u m
number of indicators light.
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When tuning in an FM station, the optimum reception
point is indicated when the center indicator lights up.
When the left indicator has come on. rotate the tuning
k n o b s l i g h t l y c l o c k w i s e . W h e n t h e r i g h t i n d i c a t o r c o m e s
on, rotate the knob slightly counterclockwise-
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T h i s i n d i c a t e s t h e f r e q u e n c y w h i c h i s t u n e d .
With FM reception, the letters ,,FM., appear on the left
o f t h e d i s p l a y a n d ' , M H z , ' o n t h e r i g h t . W i t h A M r e c e p .
t i o n , " A M " a p p e a r s o n t h e l e f t a n d , , k H z . . o n t h e r i g h t .
These change when the function selector position is
changed.
0 rururruc KNOB
Use this knob to tune in to broadcasting stations.
c } F M M U T T N G O F F S W T T C H
When this switch is released and an FM broadcast tuned
in, the muting circuit is activated inside to suppress the
annoying interstation noise between the broadcasting
frequencies for noise-free reception. When the broadcast-
ing station is far away or when receiving a station in a
fringe area, set the switch to the OFF position and then
tune in. lf there is a broadcasting station with a strong