TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help.

SYMPTOMCAUSEREMEDY

 

 

 

 

 

 

Power is not supplied even though the

The power plug is not securely connected.

Connect it securely.

 

POWER switch is ON.

 

 

 

 

 

 

 

 

No sound .

The VOLUME control is set to 0.

Turn the VOLUME control to right.

 

 

 

 

 

 

 

 

Speaker cables are not connected securely.

Connect them securely.

 

 

 

 

 

 

Sound level is too low.

Speaker cables are connected incorrectly.

Connect them correctly, that is to say L (left)

 

 

 

 

to L, R (right) to R, “+” to “+” and “–” to “–”.

 

 

 

 

 

 

 

A source sound with few bass frequencies is

Play a source sound with bass frequencies.

 

 

played.

Set the HIGH CUT control to a higher

 

 

 

position. (Turn the knob to right.)

 

 

 

 

 

 

 

It is influenced by standing waves.

Re-position the subwoofer or break up the

 

 

 

parallel surface by placing bookshelves etc.

 

 

 

along the walls.

 

 

 

 

 

SPECIFICATIONS

Type .....................

Active Servo Processing Subwoofer System

Power Supply ..................................................

AC 120V, 60 Hz

Speaker Unit...................................

20 cm (7-7/8”) cone woofer

Power Consumption..........................................................

50W

Frequency Response

..........................30 Hz–200 Hz (–10 dB)

Dimensions (W x H x D) .............

320 mm x 400 mm x 340 mm

High-Cut Filter...............................

50 Hz–150 Hz (–24 dB/oct.)

Weight ........................................................

(12-5/8” x 15-3/4” x 13-3/8”)

Impedance

 

 

12 kg (26 lbs. 6 oz.)

INPUT 1 ..................................................................

4.7 k-ohms

 

 

INPUT 2 ...................................................................

10 k-ohms

 

 

Amplifier Output ...................................................

50W/5 ohms

* Please note that all specifications are subject to change

 

 

 

without notice.

 

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