Panel Facilities - Pioneer GM-6400F/XJ/UC Service Manual

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2.2 PANEL FACILITIES

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What 's what
A
Front side
B
Rear side
C
To adjust the switch, use a flathead screwdri-
ver if needed.
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L 13942296513
1 Power indicator
The power indicator lights up to indicate
power ON.
2 BFC (beat frequency control) switch
Located front side the unit. If beats are audi-
D
ble while listening to AM broadcasts via car
stereo, change the BFC switch using a small
flathead screwdriver.
3 GAIN (gain) control
Adjusting gain controls CHANNEL A (chan-
nel A) and CHANNEL B (channel B) helps
align the car stereo output to the Pioneer
amplifier. Default setting is the NORMAL
position.
E
If output remains low, even when the car
stereo volume is turned up, turn controls to
lower level. If distortion occurs when the car
stereo volume is turned up, turn these con-
trols to higher level.
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• If using only one input plug, set the gain
controls for speaker outputs A and B to
the same position.
• For use with an RCA equipped car stereo
(standard output of 500 mV), set to the
NORMAL position. For use with an RCA
equipped Pioneer car stereo, with max.
output of 4 V or more, adjust level to
match that of the car stereo output.
4 LPF (low-pass filter)/HPF (high-pass fil-
ter) select switch
Switch the settings based on the connected
speaker.
• When the Subwoofer is connected:
Select LPF. This eliminates high range
frequency and outputs low range fre-
quency.
• When the full range speaker is con-
nected:
Select HPF or OFF. HPF eliminates low
range frequency and output high range
frequency. OFF outputs the entire fre-
Q Q quency range.
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5 INPUT SELECT (input select) switch
Select 2CH for two-channel input and 4CH
for four–channel input.
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