Teac V-600 - Page 8

*
When recording is done up to the end of
the tape, the CD player stands by after
returning to the beginning of the tune
that has just been played.
Note
If the CD player is connected to the stereo
amplifier using an optical cable, synchro
dubbing is not possible. If synchro dubbing
is required, you must connect the deck's
analog output using pin plug cords.
MAINTENANCE (Fi
The heads and tape path should be
cleaned and demagnetized periodically.
Cleaning Tape Path
© Apply head cleaning fluid* to a cotton
bud or soft cloth, and lightly rub the
heads, capstan and all metal parts in
the tape path.
® Also clean the pinch roller using rubber
cleaning fluid*.
* Both are available in TEAC Tape
Recorder Cleaning Kits HC-2 and RC-2 in
the U.S.A. or TZ-261 in other areas.
Demagnetizing Heads
Be sure that the power is off, then
demagnetize the heads using a TEAC E-3
demagnetizer. For details of its use, read
its instructions.
TROUBLESHOOTING
Basic troubleshooting of a cassette tape
deck is similar to troubleshooting any
other electrical or electronic equipment.
Always check the most obvious possible
causes first. To give you a few ideas of
what to look for, check the following:
@ No power: Is the power cord
connected?
© No audio output: Have all connections
been made correctly?
@ Low sound quality: Are the heads dirty
or magnetized? Are you using good
quality tape? Has the correct NR
System been selected?
© Impossible to enter the record mode:
Are the record protection tabs of the
Cassette in place?
DOLBY HX PRO
Dolby HX Pra is an “active bias” technique
that can improve the quality of audio tape
recordings. High-level high frequencies can
be recorded more accurately, without
sacrificing signal-to-noise ratio, while such
side effects of tape saturation as distortion
are reduced,
What Is Bias?
Bias is a very high-frequency signal generat-
ed within a tape deck and recorded on the
tape simultaneously with the program
material, This inaudible signal allows a low
noise, low distortion recording and flat
frequency response. Different magnetic tape
formulations require different amounts
of bias for optimum performance. If the
bias level is too high, high-frequency
Maximum Output Level (MOL) decreases.
The Problem of Self-Bias
Unfortunately, bias level is often influenced
by the signal being recorded. The high fre-
quencies contained in some music act as
bias. This unpredictable source of bias is
added to the existing bias, resulting in a loss
of high-frequency response. As the high-
frequency content of the signal increases,
the ability of the recorder to record high
frequencies (MOL) decreases. This pheno-
menon is called self-biasing.
How Dolby HX Pro Solution
The Dolby HX Pro monitors the high-
frequency content of the program material
and adjusts the recorder bias oscillator to
maintain a constant total bias level. The
result is improved high-frequency response
and lower distortion. Depending on the type
of tape, the improvement in headroom can
be 6 dB or more.
The Benefits
With Dolby HX Pro, it is easier to make
more accurate recordings of the kind of
music which contains high-level high fre-
quencies. The improvement is similar to
that of high-performance tape over conven-
tional tape, so regardless of the type of
‘tape used, the results will sound better.
Most important of all, Dolby HX Pro
requires no decoding process. Once the
tape is recorded with it, the improvements
will be realized when playing the tape back
‘on any machine.
260nWbim |
-aof ff ee eee
ac
q
20H: 60 100 200 500 1k 2 5 10 20k
Example of improved frequency response
using Dolby HX Pro
-8
SPECIFICATIONS
Track System: 4-track, 2-channel stereo
Heads:
2; 1 Erase and 1 Record/Playback
Type of Tape: Cassette tape C-60 and C-90
(Philips type)
Tape Speeds: 4.76 cm/sec (1-7/8 Ips)
Motor: 1 DC Servo motor
Wow and Flutter (WRMS): 0.06%
Frequency Response (Overall, -20 dB):
25 - 19,000 Hz, Metal tape
25 - 18,000 Hz, CrO2 tape
25 - 17,000 Hz, Normal tape
Signal-to-Noise Ratio (Overall):
59 dB (NR off, 3% THD Level,
Weighted)
69 dB (Dolby B NR on, over 5 kHz)
79 dB (Dolby C NR on, over 1 kHz)
Fast Winding Time: Approximately 110
seconds for C-60
Inputs: Line: 97 mV, 50k ohms
Outputs: Line: 0.52 V for load impedance of
50k ohms or more
Headphones: 1 mW/8 ohms
Power Requirements:
120/230 V AC, 50-60 Hz
(U.S.A,/Canada/General Export
Model)
230 V AC, 50 Hz (Europe Model)
240 V AC, 50 Hz (UK/Australia
Model)
Power Consumption: 10 W
Dimensions (W x H x D):
435 x 144 x 286 mm
(17-1/8" x 5-11/16" x 11-1/4")
Weight
(net):
4
kg
(8-13/16
Ibs.)
Standard Accessories: Input-output
connection cords
© Specifications were determined using
metal tape except as noted.
e@ Improvements may result in
specification or feature changing
without notice,