Pioneer GM-D8701 Benutzerhandbuch - Seite 6

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Pioneer GM-D8701 Benutzerhandbuch
( Setting the unit
)
- - - - - - - - - - - - - - - - -
•
A cut in sound output may indicate impro-
per setting of the gain control. To ensure
continuous sound output with the head
unit at a high volume, set amplifier gain
control to a level appropriate for the precut
maximum output level of the head unit. so
that volume can remain unchanged and to
control excess output.
•
Despite correct volume and gain settings,
the unit sound still cuts out periodically.
In
such cases, please contact the nearest
authorized Pioneer Service Station.
Gain control of this unit
Preout level: 2V (Standard: 500 mV)
NORM.Ll
1:.
:
~
2
v
I
GAIN
Precut level: 4 V
Above illustration shows
NORMAL
gain
set-
ting.
Relationship between amplifier gain
and head unit output power
Head unit volume steps
Head unit volume steps
Amplifier gain
------►
Amplifier gain
(normal)
(maximum)
If amplifier
gain
is raised improperly, this will
simply increase distortion, with little increase
in power.
En
(
______
.)
Signal waveform when outputting at
high volume using amplifier gain
control
Signal
waveform
•
• • • • Equal power • • •
Signal
waveform
Amplifier gain
- - - - - •
Amplifier gain
(normal)
(maximum)
If the signal waveform is
distorted
due to high
output, even if the amplifier gain is raised, the
output power will change only slightly.(!)