Unisound TC-30 Operation Manual
PA CASSETTE PLAYER PREAMPLIFIER
SPECIFICATIONS
Track System : 2 Track Monaural
Tape Speed : 4.75 cm / sec.
FF & REW Time : 90 sec. approx. (C-60)
Wow & Flutter : 0.35% Nominal
Tape Speed Accuracy : Within +3% -2%
Output (Dual) : 300mV 1% THD)
Frequency Response : 50Hz - 14,000Hz
S / N Ratio : >40dB
Power Supply : AC: 240V 50 / 60Hz
: DC: 1 2 - 24V Battery
Dimensions : L155 × H89 × D270 mm
Weight : 2.2kg approx.
(<
FEATURES
n Sturdy Top Loading Tape Deck Mechanism with Auto-stop, Pause, FF and Rew functions.
n AC Mains and 12V or 24V Battery Operation.
n 300mV Output to enable use of cassettes recorded at low level.
n Volume control for setting desired output level.
PRECAUTIONS
1. Do not use this unit in high ambient
temperature.
2. Before the cassette tape is inserted into the
cassette slot, loose tape must be tightened up
to avoid its entangling with the pinch roller.
3. Place the unit to the left of main amplifier
otherwise audible hum can result.
4. Use of C-120 cassette is not recommended
as it is extremely thin and may cause
problems.
Owing to continuous product upgradation, design & specifications
are subject to change without notice.
Specifications claimed are subject to permissible production
tolerances.
TC-30
OFF
4
2
6
8
10
AC/ 12 -2 4V DC
FFREW PLAY STOP/EJECT PAUSE
TC-30
PA CASSETTE PLAYER
VOLUME
POWER
ON
Please read this manual thoroughly before making connections and turning on the power. Following the instructions in this
manual will enable you to obtain optimum performance from your new PA Cassette Player Preamplifier.
Please retain this manual for future reference.
OPERATION MANUAL
OPERATION MANUAL
Output
AC Mains Operation
!
Output 1 & 2 of 300mV has been provided
!
The volume control is provided with in-built AC ON-OFF
through Dual RCA Jack for connecting to
Switch.
Aux / Line / Stereo input of an amplifier or
!
Set the volume control to 'OFF' position as shown in
a booster. The output is continuously
figure and connect the output to the 'INPUT' of
variable with the volume control provided
an amplifier. Normally the output of TC-30 can
at the front.
be connected to any amplifier which is having
'AUX' input sensitivity 250mV.
Maintenance
!
Connect the AC cable to a suitable mains socket.
!
To get a long, trouble free service, maintenance is
Switch 'ON' by rotating volume control as shown in
essential. After some use the Head, Capstan, Pinch
Roller etc., which come in contact with the tape,
become dirty due to dust or magnetic material on the
tape. Dirty heads cause loss of high frequencies and
the output falls. Dirty Capstan and Pinch Roller will
figure. The Pilot LED
cause unstable tape speed, leading to increased
should glow. Insert the
Wow and Flutter.
cassette into the cassette
!
To clean these, follow the under mentioned
loading compartment by
procedure:
holding the cassette tape in
such a manner that the
exposed tape area is
facing towards you and the full reel of tape is towards
your left and close the cassette door. Now press the
'PLAY' lever and adjust the volume control to the
desired level.
!
For best performance, the amplifier volume control
should be kept above centre position and the overall
volume should be adjusted by TC-30 volume control.
!
The tape can be advanced and rewound rapidly by
pressing 'FF' and 'REW' levers respectively. To stop the
tape press 'STOP / EJECT' once. To eject the cassette
press the same key once again.
>
Open the cassette door by pressing the STOP /
!
Due to the Auto Stop System, the cassette is
EJECT key.
automatically stopped when the tape comes to an end.
>
Switch ON the power and press the PLAY key. The
!
Place the unit to the left of main amplifier, otherwise
head becomes visible inside the cassette
Audible Hum can result.
compartment.
!
In case hum is audible while operating TC-30 in
>
Clean the head and pinch roller with a cotton bud
conjunction with an amplifier on AC Mains, it is
dipped in methylated spirit / alcohol.
suggested that the Earth Terminal of the amplifier is
>
Press the PAUSE key and wipe the capstan.
connected to the earthing screw of TC-30.
>
Keep the magnets and metallic objects away from
Battery Operation
the head. If the head gets magnetized, it will lead to
more noise and loss of high frequencies. The head
!
Any 12V-24V Battery or any other
and all metallic parts should be got demagnetized
DC Power source can be connected
after about 50 hours of use.
to the 2 pin strip at the rear. Be sure
>
that the positive pole of battery is
Consult your dealer about demagnetizing the head.
connected to the screw terminal
marked '+' and the negative pole to
the screw marked '-' and operated as
in AC Mains operation. The inbuilt
Switch of Volume Control does not
control Battery's ON / OFF supply.
2
8
10OFF
4 6
VOLUME
2
8
10OFF
4 6
VOLUME
2
8
1
0
F
O
F
4
6
O
N
W
P
O
ER
VO
L
E
U
M
2 V
12 4 DC
C/ -
A
A
S
TTEP E
P
A
C
E
LA
Y
R
S
-
T
C
30
REW
F
F
A
Y
P
L
C
ST
O
P
E
J
E
/
T
P
U
S
E
A
BATTERY
+
-
12 - 24V DC
OUTPUT
300 mV
21
TRUSOUND PVT. LTD. C-89, Sector IV, Noida, Gautam Budh Nagar-201 301 (UP)
Regd. Office : 125E, Okhla Industrial Estate, New Delhi-110 020
Tel.: +91-120-2551452/53 Fax : +91-120-2553677
E-mail: ahuja@ahujaradios.com, admin@ahujaradios.com Website: www.ahujaradios.com
1K/07/07/R1
Design and Specifications are subject to change without notice. • is a registered trademark of Ahuja Radios in India and other countries.
© Copyright Ahuja Radios, 2007. All rights reserved. Any unauthorized reproduction or use of logos, images or design elements is strictly prohibited by law.
No part of the compilation may be reproduced in any manner or translated without written permission.
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