Harman Kardon TD302 Owners Manual - Page 11

Cleaning, Specifications

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HEAD CLEANING Clean the tape heads, capstans and pinch rollers from time to time to assure optimum sound reproduction. Otherwise, your TD302 may be subject to drop-outs, frequency response degradation or wow and flutter. 1 . Before cleaning, open the CASSETTE COMPARTMENT door. 2. Use a cotton swab dampened with diluted anhydrous alcohol and clean the record/playback head, erase head, capstans and pinch rollers. 3. DO NOT START tape playback or recording until alcohol is thoroughly evaporated (about 10 minutes). ardOn TD302 har,20.r/IC ER Cf) The record/playback head, erase head and capstans will gradually become magnetized. Since the magnetism causes noise and high frequency response degradation, be sure to demagnetize these parts with a demagnetizer especially designed for this purpose. SPECIFICATIONS Frequency Response : 20 - 21,000Hz (±3dB, Dolby NR out with any tape formation) Wow and Flutter NAB, WRMS 0.05% CCIR, WP : 0.08% Signal-to-Noise Ratio (CrO2) Dolby NR Off : 57dB Dolby B NR : 65dB Dolby C NR : 73dB Input Level/Impedance : 50 mV/22k Ohms Output Level : 500 mV (0dB, 10k Ohms load) Headphones Impedance More than 8 Ohms Fast Forward and Rewind: 90 sec. Time (C-60 tape) Heads : 2 heads Recording/Playback Head Type : Sendust Dimensions (W x H x D) 17-7/16" x 4-13/16" x 13-1/8" (443 x 122 x 334 mm) Weight : 12lbs.9oz. (5.7kg) Power Supply : AC 120V, 60Hz Power Consumption : 20W AM specifications and features subject to change without notice. 10

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HEAD
CLEANING
SPECIFICATIONS
Clean
the
tape
heads,
capstans
and
pinch
rollers
from
time
to
time
to
assure
optimum
sound
reproduction.
Otherwise,
your
TD302
may
be
subject
to
drop
-outs,
frequency
response
degradation or
wow
and
flutter.
1
.
Before
cleaning,
open
the
CASSETTE
COMPARTMENT
door.
2.
Use
a
cotton
swab
dampened
with
di
luted
anhydrous
alcohol
and
clean
the
record/playback
head,
erase
head,
capstans
and
pinch
rol
lers.
3.
DO
NOT
START
tape
playback
or
recording
unti
l
alcohol
is
thoroughly
evaporated
(about
10
minutes).
har,20.r/IC
ardOn
TD30
2
ER
Cf)
The
record/playback
head,
erase
head
and
capstans
wil
l
gradual
ly
become
magnetized.
Since
the
magnetism
causes
noise
and
high
frequency
response
degradation,
be
sure
to
demagnetize
these
parts
with
a
demagnetizer
especial
ly
designed
for
this
purpose.
Frequency
Response
:
20
-
21,000Hz
(±3dB,
Dolby
NR
out
with
any
tape
formation)
Wow
and
Flutter
NAB,
WRMS
0.05%
CCIR,
WP
:
0.08%
Signal
-to
-Noise
Ratio
(CrO2)
Dolby
NR
Off
:
57dB
Dolby
B
NR
:
65dB
Dolby
C
NR
:
73dB
Input
Level/Impedance
:
50
mV/22k
Ohms
Output
Level
:
500
mV
(0dB,
10k
Ohms
load)
Headphones
Impedance
More
than
8
Ohms
Fast
Forward
and
Rewind:
90
sec.
Time
(C-60
tape)
Heads
:
2
heads
Recording/Playback
:
Sendust
Head
Type
Dimensions
(W
x
H
x
D)
17-7/16"
x
4-13/16"
x
13-1/8"
(443
x
122
x
334
mm)
Weight
:
12lbs.9oz.
(5.7kg)
Power
Supply
:
AC
120V,
60Hz
Power
Consumption
:
20W
AM
specifications
and
features
subject
to
change
without
notice.
10