Sony 30TW User Manual

Radio cassette-corder, Cfm-20/30tw, Choosing power sources precautions

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3-228-217-11 (1)

Radio Cassette-Corder

Operating Instructions


Sony Corporation ©2001 Printed in China

Choosing Power Sources


On safety/power sources

• Should any solid object or liquid fall into the

player, unplug the player, and have it checked by
qualified personnel before operating it any

• Unplug the player from the wall outlet when it is

not to be used for an extended period of time.

• For battery operation, use four size D (R20)


• When the batteries are not to be used, remove

them to avoid damage that can be caused by
battery leakage or corrosion.

• The nameplate indicating operating voltage,

power consumption, etc. is located at the bottom.

On placement/operation

• Do not leave the player in a location near heat

sources, or in a place subject to direct sunlight,
excessive dust or mechanical shock.

• Do not place anything within 10 mm of the rear

side of the unit. The ventilation holes must be
unobstructed for the player to operate properly
and to prolong the life of its components.

• Since a strong magnet is used for the speakers,

keep personal credit cards using magnetic coding
or spring-wound watches away from the player to
prevent possible damage from the magnet.

• Do not lift the handle when the telescopic

antenna is extended.

• If the player has not been used for a long time, set

it in the playback mode to warm it up for a few
minutes before inserting a cassette.

Notes on cassettes

• Break off the cassette

tab from side A or B
to prevent accidental
recording. If you
want to reuse the
tape for recording,
cover the broken tab
with adhesive tape.

• The use of a cassette with more than 90 minutes

of play time is not recommended except for long,
continuous recording or playback.

If you have questions or problems concerning your
player, please consult your nearest Sony dealer.


There is no audio.

• Connect the AC power cord securely.
• Insert the batteries properly.
• Replace all the batteries if they are weak.
• Adjust the volume.
• Set FUNCTION to the position you want to


Noise is heard.

• Someone is using a portable telephone or

other equipment that emits radio waves near
the player. Move the portable telephone, etc.,
away from the player.

Cassette cannot be inserted.

• Insert the cassette properly.
• Press xZ to release n.

The z button does not function.

• No cassette is in the tape compartment.
• Make sure the safety tab on the cassette is in


Poor playback, recording or
erasing quality.

• Dirty heads. Clean the illustrated portions

with a cleaning swab slightly moistened with
cleaning fluid or alcohol.

• Demagnetize the heads and all metal parts in

the tape path with a commercially available
tape head demagnetizer.



If you have any questions about this product, you may call:
Sony Direct Response Center 1-(800)-222-7669
or write to:
Sony Direct Response Center 12451 Gateway Blvd. Fort
Myers, FL 33913

Declaration of Conformity

Trade Name:


Model No.:


Responsible Party:

Sony Electronics Inc.


1 Sony Drive, Park Ridge,
NJ. 07656 USA

Telephone No.:


This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.


Do not install the appliance in a confined space, such as a
bookcase or built-in cabinet.

For customers in Canada

To prevent electric shock, match wide blade of plug to
wide slot, fully insert.

Owner’s Record

The model number is located at the bottom, and the serial number is located in the battery compartment.
Record these numbers in the spaces provided below. Refer to them whenever you call upon your Sony
dealer regarding this product.
Model No. ____________ Serial No. ____________

Tab for side B

Side A

Tab for side A

Erase head

Pinch roller

Record / Playback


Connecting the AC power cord

Open the battery compartment and take out the
AC power cord. An opening in the compartment
door permits AC operation with the door in its
place. Then, connect the AC power cord to the
wall outlet.

Using the player on batteries

Insert four size D (R20) batteries (not supplied)
into the battery compartment.

Rear Panel

to a wall outlet


Replace the batteries when the player stops operating. Replace all the batteries with new ones.

Frequency range


FM: 87.6 - 108 MHz
AM: 530 - 1 710 kHz

CFM-30TW: TV H (WEATHER): 7 - 13 ch

TV L/FM: 2 - 6 ch/ 87.6 - 108 MHz
AM: 530 - 1 710 kHz


FM/TV: Telescope antenna
AM: Built-in ferrite bar

Recording system

2-track, mono

Frequency response

100 - 6 300 Hz


Full-range: 7.7 cm (3




inches) dia



Power output

0.8 W (at 10 % harmonic distortion in

DC operation)

Battery life

FM recording

Sony R20P: Approx. 18 hours

Sony LR20 alkaline: Approx. 50 hours


Sony R20P: Approx. 16 hours

Sony LR20 alkaline: Approx. 42 hours

Power requirements

120 V AC, 60 Hz/6 V DC, four

size D (R20) batteries

Power consumption



Approx. 278




130 mm (w/h/d)












inches) incl. projecting parts and



Approx. 1.9 kg (4 lb 3 oz) (incl. batteries)

Design and specifications are subject to change without

This symbol is intended to alert the user to
the presence of uninsulated “dangerous
voltage” within the product’s enclosure
that may be of sufficient magnitude to
constitute a risk of electric shock to

This symbol is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.

You are cautioned that any changes or modifications not
expressly approved in this manual could void your
authority to operate this equipment.

To prevent fire or shock hazard, do not
expose the player to rain or moisture.

This manual is related to the following products: