Technics RS-X933 User Manual

HEAD
AZIMUTH
ADJUSTMENT
(DECK
A/B)
ERASE
CURRENT
ADJUSTMENT
(DECK
A)
1.
Playback
the
azimuth
adjustment
portion
(8kHz,
—20dB)
KA
1.
Insert
the
Metal
blank
test
tape
(QZZCRZ)
and
set
the
unit
of
the
test
tape
(QZZCFM).
Vary
the
azimuth
adjusting
°©)°
to
the
Record
Pause
mode.
screw
until
the
outputs
of
the
L-CH
and
R-CH
are
-
=
2.
Adjust
VR301
so
that
the
output
between
TP3
and
GND
ERASE
HEAD
EVM
i i form, as illustrated, i is within the standard value.
maximized
and
the
lissajous
wavefo
illu
AeottG
(Electronic
approaches
0
degrees.
Q
Solanck
Note:
If
L-CH
and
R-CH
are
not
maximized
at
the
same
point,
5s
Standard
value:
190+5mA
(Metal)...EVM
Reading:
190+5mV
Fig.
7
meter)
adjust to the point where the levels of each channel
are maximized and equal. Fig. 1
2. Perform the same adjustment in the play mode.
3.
After
the
adjustment,
apply
screwlock
to
the
azimuth
E.
HEAD
(DECK
2)
R/P.
HEAD
(DECK
2)
OVERALL
FREQUENCY
RESPONSE
(DECK
A)
Normal
Overall
frequency
response
chart
(NR
OUT)
adjusting screw. P. HEAD (DECK 1) . Insert the Normal blank test tape (QZZCRA) and set the
unit to the Record Pause mode.
. Apply a reference input signal (1kHz, —24dB) through an
attenuator.
. Attenuate the signal by 20dB and adjust the frequency
from 50Hz~10kHz.
Azimuth Screw (Forward) Azimuth Screw (Reverse) . Record the frequency sweep.
. Playback the recorded signal and assure that it is within
Fig. 2 the range shown in Fig. 8 in comparison to the reference 50Hz 100Hz 200H2 S00H2 1kHz 2KHz
frequency (1kHz).
. If it is not within the standard range, adjust VR303 Fig. 8
Malden bles ADJUSTMENT (DECK A/B) (L-CH) and VR302 (R-CH) so that the frequency tevel is
:
:
eee
within
the
standard
range.
CrO,
Metal
Overall
frequency
response
chart
(NR
OUT)
1.
Shift
the
edit-recording
tape-speed
selector
to
“X1”.
*
Level
up
in
high
frequency
range
Increase
the
bias
current.
;
i
Aaa
2. Playback the middle portion of the test tape (QZZCWAT). ¢ Level down in high frequency range ...Decrease the bias current.
3. Adjust Deck B=VA902 and Deck A=VR903 so that the LINE OUT :
7. Repeat steps 2~6 above using the CrO, tape (QZZCRX)
output
is
within
the
standard
value.
:
and
the
Metal
tape
(QZZCRZ)
increasing
the
frequency
High
speed
range
to
12.5kHz
(50Hz~12.5kHz).
4.
Shift
the
edit-recording
tape
speed
switch
to
“X2”.
*
=
A
5.
Playback
the
middie
portion
of
the
test
tape
(QZZCWAT).
Digi
requeney
.
Assure
that
the
level
is
within
the
range
shown
in
Fig.
9.
6.
Adjust
Deck
B=VR901
so
that
the
output
is
within
the
P
LINE
IN
LINE
OUT
standard value. .
Note:
The
Normal
speed
adjustment
must
be
done
before
_O*T£O
OOCF
the
High
speed
adjustment.
AF
oscillator
Fig. 9
(DECK
A)
Standard
value:
3000
+
15
Hz
[Normal
(X1)],
6000
+
600
Hz
[High
(X2),
only
confirmation)
(DECK
B)
Standard
value:
3000
+
15
Hz
[Normal
(X1)],
6000
+
30
Hz
[High
(X2)]
OVERALL
GAIN
ADJUSTMENT
(DECK
A)
1. Insert the Normal blank test tape (QZZCRA) and set the
unit to the Record pause mode.
2. Apply a reference input signal (1kHz, —24dB).
PLAYBACK GAIN ADJUSTMENT (DECK A/B) Attenuate the output so that its evel bacemes 0.4V.
1. Playback the gain adjusted portion (315Hz, 0dB) of the LINE OUT . Record this input signal. : LINE IN LINE OUT
test tape (QZZCFM). A . Playback the signal recorded in step 3 above, and assure
2. Adjust Deck B= VR3 (L-CH) [[VR4 (R-CH)]] and Deck q that the output is within the standard value.
A=VRS5 (L-CH) [[VR6 (R-CH)]} so that the output is within ‘ Ss . If it is not within the standard value, adjust VR7 (L-CH)
the standard value. and VR& (R-CH).
. Repeat the step 2~5 above until the output is within the
Standard value: 0.4V+0.5dB standard value.
Standard value: 0.4V+0.5dB
PLAYBACK FREQUENCY RESPONSE (DECK A/B)
1. Playback the frequency response portion (315Hz,
12.5kHz~63Hz, —20dB) of the test tape (QZZCFM).
2. Assure that the frequency response is within the range
shown in Fig. 6 for both L-CH and R-CH.
LINE OUT
63Hz 100Hz 200Hz |500Hz 1kHz 2kHz 4kHz
315Hz
Fig. 6

Technics RS-X933 Specifications

General

Brand	Technics
Model	RS-X933
Category	Cassette Player
Language	English