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JVC TD-W717TN Service Manual page 8

Double cassette deck
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(8SEr
'ON)
8
PITCH control (deck A)
It ls 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.
MULTI MUSIC SCAN
@ The multi music scan mechanism of this unit allows you to
quickly tocate 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.
ine
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ah
Procedure
1. Press the mp button during playback.
2. When more than 2 tunes are to be skipped, after procedure
1 press the pp (or «<q ) 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 «eq (or me ) but-
ton one extra time.
Notes:
In the following cases, the mechanism may not operate cor-
rectly. This ts not a maifunction; 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.
BLANK SKIP
@
Press the BLANK
SKIP button to turn it ON (the Indicator
fights} 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.
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 contro! 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
=m : Operates on one side of the tape only.
=~): Operates continuously from side A to side B.
¢&): Operates on both sides of the tape.
RECORDING
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.
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.
my
Ui
COUNTER RESET
@ Press the POWER switch to set to ON.
@ Load a cassette for recording.
@ Set the DOLBY NA switch as required.
@ Set the REVERSE MODE switch as desired.
@ Select the side to be recorded.
@ Press the COMPU CAL button, if required. (See below.)
@ Press the 1# PAUSE button and @ REC/REC MUTE button
{record-pause mode).
REC and indicators light.
© Adjust the recording level. (See page 9.)
@ Press to '0.00".
@ Press the PLAY button to start recording.
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.
DDRP (Dynamics Detection Recording Processor) recording
DDFP 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 4, II or IV), the adjustment of INPUT
LEVEL control is not required.
Read the instruction book of your CD player carefully.
COMPU CALIBRATION (COMPU CAL) FUNCTION
®@ 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-
er reas data is retained for each tape type (Type |,
it or
1 V ) .
® 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 recailed each time tapes are changed.
@
Performing COMPU CAL operations again replaces existing
data with the new data.
COMPU CAL operation
@
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 retums to its starting position, and the COMPU CAL
indicator lights. COMPU CALIBRATION is now finished.
® Pressing the m (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.
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.
COMPU CAL Errors
@
When
the COMPU
CAL
indicator flashes, this Indicates a
COMPU CAL error.
® Press the m (stop) button to stop the error indication.
Care should be taken for the following items as they are the
cause of errors.
1) Dirty heads
-Clean the heads.
2) Scratches on the tape surface
-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 fall out-
side the COMPU CAL setting range.
@ 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.)
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 for 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 for the type of tape
currently inserted in the unit. Calibration data for other tape
types is not deleted.
INN/OAAAR
MOL
TONLZEZM

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