Pioneer GM-D505, Руководство по обслуживанию

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GM-D505/XH/EW
8. OPERATIONS
Gain Control and Bass Level Control
Adjusting the gain controls A and B and the bass le
v
el control (CH SUB) will
help match the output of the car stereo to the Pioneer amplif
ier
. Normally
, set
these controls to the “NORMAL (NORM.)” position. If the output is lo
w
,
ev
en when the v
olume of the car stereo
is turned up, turn these controls clock- wise. If there is distortion when the v
o
l-
ume of the car stereo is turned up, turn these controls counter
-clockwise.
•
If you only use one input plug, set the gain controls for speak
er outputs A and B to the
same position.
•
W
hen using with an RCA equipped car
stereo (standard output of 500 mV), set to the NORMAL position. When using with an RCA equipped Pioneer car stereo with max. output of 4 V or more, adjust le
v
el to
match the car stereo output le
v
el.
•
W
hen you w
ant to boost bass, turn the bass
le
v
el control clockwise.
Power Indicator
The po
wer indicator lights when the
po
wer is switched on.
BFC (Beat Frequency Control) Switch
If you hear a beat while listening to an MW/L
W broadcast with your car stereo,
change the BFC switch using a small standard tip scre
wdri
v
er
.
HPF (High-Pass Filter) Select Switch (CH A and CH B)
Set the HPF select switch as follo
ws according to the type of speak
er that is connected to
the speak
er output connector and the car stereo system:
HPF Select
A
udio fr
equency range
Speak
er
Remarks
Switch
to be output
T
ype
OFF
(Left)
Full range
Full range
HPF (Right)
Lo
w Frequenc
y range to
Full range
Use if you w
ant to cut the
High Frequenc
y
range
v
ery lo
w frequenc
y
range
because it is not necessary for the speak
ers you are
using.
Cut Off Frequency Control
Y
ou can select a cut of
f frequenc
y from
40 to 240 Hz.