JVC TD-W254 manual Installation, Cleaning the cabinet, Cassette tape, Operations

2. Installation

1)Avoid placing the unit on or adjacent to an amplifier, to pre- vent hum from being produced by some types of amplifiers. Move the unit to a place not affected by the amplifier. Keep the unit as far as possible from a TV set.

2)Avoid installing the unit in a location subject to ambient tem- peratures exceeding 40 °C (104 °F) (e.g. direct sunlight, near heaters, etc.) or less than 0 °C (32 °F), excessive humidity, dust or vibrations.

3)If this set is moved suddenly from a cold place (0 °C) to a warm place, it may not function properly because of moisture generated inside the unit. The unit will function properly 30 minutes after being moved.

3. Cleaning the cabinet

Never use benzine or thinner for cabinet cleaning as they may damage the surface finish.

4. Cassette tape

1)Loose tape may become tangled in the tape transport mechanism. Remove slack by winding the tape with a pen- cil.

(Fig. 2)

Fig. 2

Turn the pencil to tighten the tape.

2)The use of C-120 (120 minutes turn around) or thinner tape is not recommended, since characteristic deterioration may occur.

3)To prevent recordings from being erased accidentally, remove the tab(s) with a screwdriver. Reseal the slots with adhesive tape to erase and re-record after the tabs have been broken off.

Side ``A''

Tab ``B'' Side ``B'' Tab ``A''

Adhesive tape

Fig. 3

4)Do not store cassette tapes where there is a magnetic field (e.g. near a TV, etc.) or in a place subject to high tempera- tures or humidity.

5.Auto tape select mechanism (decks A and B)

This deck has an Auto Tape Select mechanism which distin- guishes between different types of tape from holes in the cassette. After the type of tape has been detected, bias and equalization are set to be suitable for the tape.

· Cassettes with the detection holes:

Metal tape (EQ: 70µs)	Type IV
CrO2 (chrome) tape (EQ: 70µs)	Type II

·Cassettes without the detection holes:

Normal tape (EQ: 120µs) Type I

Some earlier types of metal and CrO2 (chrome) tapes may not be provided with the detection holes. Avoid using such tapes, since correct equalization characteristics cannot be obtained. Also do not use ferrochrome tapes whose charac- teristics do not match this unit.

CrO2 tape detection holes

Metal tape detection holes

6. Operations

1)Noise may be generated if the POWER switch is switched OFF with the deck set to playback or recording mode. Before switching the POWER switch OFF, confirm that the (stop) button has been pressed. (B version)

2)Many operations of this unit are performed under the control of a microcomputer. Use the unit only after carefully studying the descriptions and cautions in each item. If operations are done incorrectly, the unit may stop functioning correctly. If this happens, for the J version, unplug the power cord and

for the B version, set the POWER switch to OFF, so that the unit can function correctly.

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