JVC RX-504VBK Service Manual page 14

Digital surround system receiver
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RX-504VBK/RX-504VLBK
RX-505VTN/RX-505VLTN
SEA
|
SEA
PRESET
DISPLAY
"=
LEVEL
>
a
Baas
Spee
SEEN
=
Ni
ce
a
a
csi
enim acide"
™ Presetting Manual Patterns
1. Create an S.E.A. pattern to preset as instructed in ''Creating an
S.E.A. pattern''.
2. Press MEMORY
key to light its indicator. Cal! one of the patterns
to store (SEA-A through E) by pressing the PRESET keys while
the indicator is on (about 5 seconds).
_ SEA
ae
ey ae
t- PRESET
_|
L
|
|
Blinks
PRESET
+
SEA
zi
—-p
Goa
i
a
S|
L PRESET
ae See
ae
EI
eet
[iSEA-Al~-[SEA-B]—SEA-C]~[SEA-D!~ISEA-£] —
Note:
Press the MEMORY
key again if the indicator turns off before you
press the PRESET keys.
3. Press the MEMORY key again while the indicator is on (about 5
seconds). Memory presetting is complete when the MEMORY in-
dicator turns off.
SEA [On]
Ob. 32 och
Me eh a ey
:
PRESET
3]
LL
| |
|
The preset SEA patterns can each be given a five-character title. See
the section ''Entering Characters'' for futher details
MEMORY
@ The SEA key enable you to compare the sound corrected by
S.E.A. with the original (not corrected) sound during proce-
dure creating S.E.A. pattern. Pressing the SEA key to turn the
S.E.A. OFF offers you the sound not corrected. When
press
SEA
key again the S.E.A.
pattern being created
could
be
recalled, and corrected
sound would
be heard.
S.E.A. recording
The sound corrected by S.E.A. can be recorded on the tape
deck connected to the TAPE
1 and VCR terminals.
1-14 (No.20220)
@ To flatten the SEA characteristics
FLAT
oe?
hy ae
Pressing the FLAT key while a pattern is yet to be preset will clear
it. Be careful not to press the FLAT key inadvertently.
@ To reverse the porality of the S.E.A. characteristics
REVERSE
The S.E.A. pattern is displayed
in ascending frequency order
Press again to return to the original polarity.
@ To confirm the current S.E.A. setting
DISPLAY
The S.E.A. pattern is displayed
in ascending frequency
Frequency band responses
63 Hz: Raise to emphasize the very low base response of organs,
drums, and contrabass.
When
de-emphasized,
eliminated unclear
response at low frequencies.
160 Hz: Emphasize
to obtain a more
expanded
low sound.
De-
emphasize to eliminate unclear sound caused by large or nearly empty
listening rooms.
400 Hz: This frequency range is the base on which music is con-
structed.
Emphasize to put real punch in your music.
1 kHz: Most effective in emphasizing or de-emphasizing the human
voice.
2.5 kHz: The human hearing is most sensitive to this freuqncy.
If
the music sounds hard or metallic, de-emphasize
it.
6.3 kHz: This frequency band varies the tonal expression, influenc-
ing the subtleties of the music.
16 kHz: Boosting this frequency range suitably adds to the delicacy
of highs, with cymbals and triangles resounding in a more ear-pleasing
manner, and provides a feeling of extension.
:
E
;
:
1

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