Recording; Pitch; Blank Skip; Compu Cal - JVC TD-W717TN Service Manual

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HH
D O
CO
o
00
^
1
r a n
*
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CO
PITCH control ( deck A )
It is
possible to vary
the tape speed in
deck A in the range of
about
±
10 % in the playback mode
.
The center
click position
is
for the
standard
tape speed
.
Notes :
1
.
If
the other deck is in Music Scan mode
,
the BLANK SKIP
operation stops momentarily and restarts when the other
deck
has finished
.
2
.
The BLANK SKIP indicator lights even when the BLANK
SKIP operation
is canceled momentarily , as described
in
1
.
3
.
Depending on
the PITCH
control setting ,
the BLANK
SKIP
operation
may not be
performed in deck A even if a
tape
with a non
-
recorded portion
of over
15 seconds
is being
played
.
Reset
PITCH control
to the center click position and
repeat the
BLANK SKIP operation
.
Relation
between REVERSE MODE
and BLANK SKIP Func
-
tions
^
:
Operates on one
side of the tape only
.
Operates continuously from
side A to side B
.
Operates on both
sides
of
the tape
.
O
Press the POWER switch to set to ON
.
0
Load a cassette for recording
.
O
Set the DOLBY
NR switch as required
.
Q
Set the
REVERSE MODE switch as desired
.
G
Select the side to be recorded
.
0
Press
the COMPU CAL
button
,
if required
.
( See below
.
)
Q
Press
the
ll
PAUSE button and
REC
/
REC MUTE button
(
record
-
pause mode
)
.
REC and
ll
indicators light
.
0
Adjust the recording
level
.
( See page 9
.
)
O
Press to "
0.00
"
.
©
Press
the
PLAY button to start recording
.
COMPU CAL Errors
>
o
D
t
CJ
1
CO
When the COMPU CAL indicator flashes ,
this
indicates a
COMPU
CAL
error
.
Press
the
( stop ) button to stop the
error
indication
.
m
z
D
MULTI MUSIC SCAN
Care
should be
taken for the following
items as they
are
the
cause
of errors
.
H
The multi music
scan
mechanism of this unit allows
you to
quickly locate
the beginning
of a specific tune ( up to 99 tunes
before or
after the current tune )
.
The
multi music scan mechanism functions by detecting non
-
recorded sections
between tunes
( of
more than 4
-
5 sec
.
)
.
The illustration shows the forward direction
.
Example of fast forward scan
.
\
i
/
<
PL
AY
>
/
i \
on
i
u
i
1 ) Dirty heads
2 )
Scratches
on the tape surface
-
Clean the heads
.
-
Replace with an undamaged tape
.
3 ) When the
tape
ends
part
-
way through the operations
-
Change the tape position
.
4
)
In rare cases
, tapes may have characteristics which fail out
-
side
the COMPU CAL setting range
.
Notes :
When the
safety
tabs are removed from a cassette tape , the
tape cannot be recorded
even if
you try
.
Make sure
that
both
tabs are still in place
when performing full recording
.
When
the tape
is recorded in the reverse
direction (
side B
)
,
only side B is
recorded
and
then
the tape stops
automati
-
cally
.
When an error occurs or
when COMPU CAL
operations are
interrupted
, calibration data cannot be stored in the memory
.
If settings were previously performed ,
the previous setting
values are
retained
.
After confirming items 1 )
to
3 )
above and stopping
the error
indication
if there are no problems , even tapes which expe
-
rience errors can
be
recorded
on using
either
©
the unit ' s
preset values or
©
previous setting values
.
( These
are the
values
obtained by opening and closing
the cassette
holder
one time
.
)
*
Preset value : a
standard value corresponding to each type
of tape
,
which
allows normal recording
.
(
The
preset value
condition
is in effect when
the
COMPU CAL indicator is unlit
.
)
*
<
I I
I
n n
i
u
i
L
RECORDING
MUSIC
n
Example : Deck B
Operate
in the
order of
the numbers in
the
illustration
.
Make sure
the safety tab of
the
cassette has
not been broken off
.
DDRP ( Dynamics Detection
Recording Processor ) recording
Procedure
1
.
Press the
button during playback
.
2
.
When more
than
2 tunes are to be skipped
,
after procedure
1 press
the
( or
MM
) button the
number of times you
want
to skip
tunes
.
The number of tunes to be skipped is
displayed in the counter
.
Music
Scan Operation
can
be performed on both decks A
and B , but not simultaneously
.
Relation
between Multi Music Scan and REVERSE MODE
.
: The multi music scan mechanism operates on one
side of the tape only
.
If the number set is too high
(
more
than there
are tunes remaining on that
side
)
,
the
tape stops
when the end of the
tape
is
reached
.
: It
operates
continuously through one cycle of the A
and B sides
of the tape
.
If the
number set has not
been reached
,
the
tape stops at
the end of the B
side
.
When the
head rotates to
play side A from B
or B from A
,
this
rotation Is counted as one non
-
recorded section
.
When a
recorded tune continues
from side A to
B , this tune is recorded
as
two
tunes
,
in
such a case ,
press
the
M
<
(
or
) but
-
ton one extra time
.
DDRP recording is performed with suitable JVC CD players and
the recording level adjustment
is performed automatically
.
Since recording level
adjustment
is performed automatically
for
different
types of tape ( Type I
,
II or
IV
)
,
the adjustment of INPUT
LEVEL
control
is not required
.
Read
the
instruction
book of your CD player carefully
.
It should be
noted that it may be unlawful to re
-
record
pre
-
recorded
tapes ,
records , or discs
without the consent
of the owner
of
copyright in the sound
or video recording
,
broadcast or
cable programme
and in any literary ,
dra
-
matic
,
musical
, or
artistic work
embodied
therein
.
COMPU CALIBRATION
( COMPU CAL )
FUNCTION
O
o
Notes :
1
.
Since COMPU CAL
operations record a test
tone on
tapes
,
previously recorded contents will be erased
.
2
.
Using new tapes and cleaning the heads beforehand are
recommended
for optimal COMPU
CAL
operations
.
3
.
Some variance in
characteristics exists even with
the same
type of tape made by the same
manufacturer
.
Therefore
,
when precise settings are
desired ,
performing COMPU CAL
operations lor each recording is recommended
.
4
.
To delete contents set
with COMPU
CAL , simultaneously
press
the
REC
/
REC MUTE and B deck
COUNTER
RESET
buttons
.
This deletes the calibration
data
lor the type of tape
currently
inserted in the unit
.
Calibration
data for
other tape
types is not deleted
.
This unit is equipped with a COMPU
CAL function which
can
automatically set
the flat
frequency
characteristics
and opti
-
mal tape sensitivity for each
tape
in approximately 30 sec
-
onds
.
Calibration data is retained
for
each tape type
(
Type I ,
II or IV
)
.
Calibration data set with
COMPU
CAL is retained
even if the
power
is turned
off ( or the power cord is unplugged ) , and the
previous calibration data for
the same type of tape as
the
new
tape
is recalled
each
time
tapes
are changed
.
Performing COMPU CAL operations again replaces existing
data
with
the new data
.
V
POWER
o
o
e
DOLBY NR
COMPU CAL operation
Notes :
In the following cases
, the
mechanism
may not operate cor
-
rectly
.
This
is not a malfunction ; use the mechanism accord
-
ing to
the
type
of
program
.
Tapes with tunes having
long
pianissimo passages
( very
quiet
parts )
or
non
-
recorded
portions during
tunes
.
Tapes with short non
-
recorded sections
.
Insert the
tape to
be recorded and press
the COMPU CAL
button
.
During the
operation
,
" C
"
-
>
"
CA
"
-
>
"
CAL
"
is dis
-
.
played in the
tape counter
.
When the operation finishes
,
the
tape returns to its starting position
,
and
the COMPU CAL
indicator lights
.
COMPU CALIBRATION is
now finished
.
Pressing the
( stop ) button part
-
way will interrupt
the
oper
-
ations
.
To recalibrate the
unit
, press the COMPU CAL button and
wait for the COMPU CAL
indicator to
go out
.
Then
, press the
COMPU CAL button again
.
o
o
REC
/REC
MUTE
PAUSE
COMPU
CAL
BLANK SKIP
Press
the BLANK SKIP button to turn it
ON ( the
indicator
lights ) before playback
.
When a blank (
a
non
-
recorded sec
-
tion ) of over 15 seconds is detected during playback , the
deck automatically
goes into fast
-
forward scan mode and
resumes playback
from
the
beginning
of the
next tune
.
O
©
o
n
IIII
u
.
UU
COUNTER RESET
Note :
If
the
tape
is near its end , it will automatically
stop
and an
error will be generated during operation
.
Therefore
,
be sure
to check the time remaining
on
the
tape (
more than 2 min
-
utes in the play mode ) before starting the operations
.
PLAY
-
8
-
-
7
-

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