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Pioneer SR-9 Service Manual page 3

Reverberation amplifier
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3. FRONT PANEL FACILITIES
O) PowER swrrcH
Power is supplied to the model SR-9 when this switch
is depressed. The power indicator comes on as soon as
the power is supplied.
€) PowER rNDrcAToR
This comes on as soon as the SR-g's power switch is
set to ON to indicate that power is being supplied.
@ nevenBERATtoN EFFEcT tNDtcAToR
This displays the reverberation effect graphically. When
the reverberation time is increased (the reverb time
control is rotated clockwise), the winking intervals of
the light are lengthened. Converæly, when this tirne is
reduced (the reverb time control is rotated counter-
clockwise), these intervals are cut short. Also, the
lighting area increases in proportion to the size of the
reverberation components. This area is increased as
the depth control is rotated clockwise. The reverb
time and depth controls are æt to the preferred posi-
tion as you check out the reverberation, but if the re-
verberation indicator's circle of light remains on the
display, it means that the reverberation components
are excessive (too much of an echol Use this as a
base for adiustments.
@) REVERBERATION ON SWITCH
Depres this svvitcft to produce a reverberation effect
with the signals fed from the REVERBERATION
INPUT jacks. The reverberation effect indicator will
come on, and signals featuring a reverberation effect
only will be fed out from the model SR'9's OUTPUT
jacks.
€) REVERBERATION ON-RECORDING
swtTcH
Depres this switch when recording a program souroe
whose signals feature a reverberation effect onto a tape
in a deck connected to the mode SR'9's TAPE iacks.
This will allow signals with the reverberating sound to
be made availabe from both the SR-9's OUTPUT iacks
and the TAPE REC jacks.
@ nevenBERATroN
oFF swrrcH
Depress this switch to cut off the reverberation effect.
This will allow signals without a reverberating sound to
be made available from both the sR-9's OUTPUT iacks
and the TAPE PLAY iacks.
NOTE:
The rcverberation on $titch,
the reverberation on-recording
switch and the reverbration off swiæh are all couplel. When
you depres one switch, make stre that all the odnæ arc re
leaæd. Do not depress morc than one switch at a time.
e) repe MoNtToR rNDrcAToR
This comes on when the tape monitor switch is de-
presed.
@ TAPE MONTTOR SWTTCH
Depress this switch to monitor the sound on the tape
as it is being recorded or when playing back a tape
using a tape deck connected to the SR-9's TAPE iacks.
(The tape monitor indicator comes on.)
o REVERB T|ME CONTROL
This is used to adiust the delay time.
The reverberation effect becomes more pronounced
when this control is rotated clockwiæ as you listen to
the reproduced sound. Listen to the sound and then set
this control for the optimum effect. Selection can be
made between two types of reverberation with the
model SR-9 by pushing the reverb time control or
pulling it out. Pushing the control gives EFFECT 1
(longer reverberation time) and pulling it out gives
EFFECT 2 (one reverberation component).
@ oeprx coNTRoL
This is used to adjust the depth of the reverberation.
When it is set to the
'0' position, only the original
sound will be heard. The reverberation component
increases as this control is rotated clockwise. Listen to
the sound as it reverberates and adiust this control to
the optimum Position.
C0a{o ɀta

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