Advertisement
ELECTRICAL ADJUSTMENTS
Preliminary
Reel Motor
Speed
Adjustment
(Play)
Tape
speed
Adjustment
Meter
Level
Calibration
MPX Filter
Adjustment
Playback
Head
Track
Alignment
Playback
Head
Azimuth
Alignment
(DA09082A)
3 kHz
Speed
and
Wow/
Flutter
Tape
(DA09006C)
Frequency
Counter
to Output
Jacks
1 kHz
Track
Alignment
Tape
(DA09087A)
(DA09004B) | Jacks
Monitor
-
Tape
Eq. - 70 ps
Tape
- ZX
MPX Filter
-
OFF
Dolby NR
~
OFF
Monitor
-
Source
Monitor
-
Source
MPX - OFF/ON
Playback
Monitor
-
Type
Eq. - 70 ps
Dolby NR -
OFF
10
Playback
Head
Azimuth
Alignment
Screw
Set
the CR-3/3A/3E/30
as shown
in MODE.
Adjust
VR601
to obtain
50 g-cm
on
the
Torque
Gauge.
Feed
in 400 Hz and adjust
the Input
Level
control
to obtain 500 mv -2
dB on the AC voltmeter,
;
Adjust VR118
(VR218)
so that the
0 dB segment
on
the level meter
starts
illuminating.
Adjust
the Input Level
control
to
obtain 500 mv (0 dB) on the AC
voltmeter,
Set
the MPX Filter
switch
to ON and
adjust L101
(L201)
to obtain minimum
reading
on
the AC voltmeter,
(The minimum
reading will be
than -30 dB.)
less
Adjust
the Playback Head Azimuth
Alignment
Screw
to obtain maximum
readings on the AC voltmeter
for both
channels,
Refer
to "Playback Head
Height Adjustment
and Azimuth
Alignment"
in item 4.5.
Note:
Repeat
Steps
6 and 7 two or
three
times
to obtain
optimum
performance,
Advertisement
