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D-vV¥200
D-VV210
D-VWV/220
1. Tape Speed Adjustment
*Be sure to make adjustment in order of Normal-speed to
High-speed. (For W200; Normal-speed only)
1) Normal-speed (W200, W210, W220)
Adjustment value | Adjustment point
@ W210, W220
RT501 (TAPE 1)
Tape speed
Alignment tape
RT503 (TAPE 2)
e W200
Semi-variable resistor
inside motor
Adjustment procedure
Connect the frequency counter to the LINE OUT terminals
apply
heat-run
for 20 minutes
or more. Then, playback
alignment
tape for TAPE 1 and TAPE 2, and adjust the
tape speed to the middle of the tape so that the speed of
TAPE 1 and TAPE 2 are equal.
2) High-speed (W210, W220)
Adjustment value | Adjustment point
Adjustment procedure
(For W220)
With
the shorting across the cathode
side of D501
and
cumper,
and
playback
alignment
tape
for TAPE 1 and
TAPE 2 and adjust their speed.
(For W210)
With
the shorting
across the cathode
side of D501 and
catnode
side
of
DO0i
ana
play cack
aigna ment
TAPE
1 and TAPE
2 and adjust their speed.
tape for
2. Azimuth Adjustment of ae
Head
Adjustment value | Adjustment point
point
Azimuth ali-
Macimunvoursut
Azimuth adjust-
gnment tape
ment screw
Adjustment procedure
Connect
the electronic voltmeter
to the LINE
OUT
ter-
minals and playback the alignment tape to adjust the head
azimuth,
Leave voltmeter as it is, record the 12.5 kHz signal (Dolby
level —20 dB) at TAPE 2 and playback at TAPE
1. Adjust
the head azimuth
as output signal of the LINE OUT ter-
minals is maximum.
When
the maximum
values differ between
both channels,
set to the maximum value of the left channel. Check that
the difference
between
the values of both channels
is less
than
2 dB, and
readjust when
the difference
is greater.
3. Playback Gain Check
Dolb
ied
520mV + 3dB
Gesieearet
alignment tape
terminals
Check procedure
Connect the electronic voltmeter to the LINE OUT termi-
nals, playback the Dolby alignment tape and check that the
reading of the electronic voltmeter indicates the value. (The
difference between the values of both channels
is less than
2 dB)
4. Bias current Adjustment and REC / PLAY Output Level Adjustment
Set RTO1L,
R in the center position and record at the recording level shown in the table below to adjust for each tape, then
check the playback level.
Recording level
)
«Playback level =
)
«Playback level
=
_
oes
-
Kaen
Suis
requency
ped
justment
eave)
justment
procedure
(Hz)
point
point
NORMAL
(cae
NOR-I
Ne
2 [PERC |
400
| =16dBm}
ATT
NORMAL
a
to Rae
to 1dB at 10
el
pea
NOR
URE TOk
—23dB
compared with that at 1kHz
Adjustment procedure
(1) Bias Current Adjustment (for TAPE 2)
1) Connect the audio oscillator to the LINE IN terminals
Via the attenuator and set the unit to the record mode.
Adjust the output of the audio oscillator so that the
meter
indicates
0 dB. Then, adjust the attenuator
to
set it to 0 dB to —23 dB. (Frequency: 1 kHz)
/-15.5dBm+0.5dB
| /RTOIL, R |
R
Check
2) Record in this state and then set the frequency of the
audio oscillator to 10 kHz then perform recording.
check that the reading at 10 kHz is 0 dB to 1 4B
compared with that at 1 kHz.
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