Filter
Top Products
XR-P74OM,
XR-P64OM,
XR-P34OM
xR-P7
40, XR-P640,
XR-P34()
3. CASSETTE
DECK
SECTION
a
Adjustment
points
and test
points
are
shown in Fig.
3-2 and Fig.
3-4.
I
Mechanical
Adjustment
a
Set the TAPE
function.
.
Test
tape: STD-301
(3kHz,
30min).
1 . Tape
Speed Adjustment
No.
Mode Test
Tape
Adjusting
Points
Measurement
Points
Adjustment
Procedure
Remarks
1 PLAY
sTD-301
(Playback:
3kHz)
DECK
Unit
vR4111
TAPE
TEST
POINT
(Rch)
(AF
CD Assy)
Press
the PLAY SW
and adjust so that the reading
becomes
3010Hza10Hz. Confirm that wow
&
flutte! level is below
0.270
(in
the reverse direction,
confirm that
the reading is within 3010H2 t
60Hz).
!
Electrical
Adjustment
Check the tollowing
before
starting.
1.
Confirm that the
tape speed adjustment
has been
completed.
2. Clean the heads
and demagnetize
them using a head
eraser.
3.
Set the measurement level
to 0 dBV
=
I Vrms.
4.
Use the specified tape for
adjustment. Use the labeled
(A)
side of the test tape.
STD-331E: For
playback
adjustment
STD-631: Normal
blank tape
5. Provide
yoursel{
with the foUowing
measuring devides:
a
AC millivoltmeter
o
Low-frequency oscillator
a
Attenuator
o
Oscilloscope
6. Adjust
both
right
and left channels
specified.
7.
Tum
the DOLBY NR switch
off
specified.
8. Warm up the
unit fgr several minutes
before adjustment.
In
particular,
be sure to
wartn up the unit in
the
REC/PLAY
mode for
3 to 5 minutes before starting
recordingT/playback
frequency characteristics
adjust-
ment.
9. Always follon'
the
indicated
adjustment
order.
Otherwise, a complete
adjustment may not
be achieved.
Playback
Adjustment
(Decks
I
and ll)
1. Head
Azimuth Adjustment
2.
Playback Level Adjustment
Recording Adiustment
(Deck
ll)
1. Bias Oscillation Frequency
Adjustment
2. Recording Level
Adjustment.
3. RecordingT/playback
Frequency Characteristics
Adjustment
4. ALC
Operation Check
'As
the reference
recording level is
250nwb7/m Ior
STD-331E,
the recording level will be hfuher
by 4 dB for
STD-3318
(160nwbz/m).
When adjusting,
pay
carefull
attention
to the type oI tape used.
unless otherwise
unless otherwize
3!5H.
6.3kHu
lOtHr
3t5Hr
12. 5
0kHr
SkHr
6.3
2lHz t{0Hz
I25Hr
53Ht
/t0l'L
1-24
Fig.
3-
1
STD-331E Test Tape