Troubleshooting, Specifications, 11 english – Yamaha 90 User Manual

Page 11

English

YST-SW160

Type ................ Active Servo Processing Subwoofer System
Speaker Unit .................... 20 cm (8”) cone woofer (JA2160)

magnetic shielding type x 2

Amplifier Output ........................................... 150 W/5 ohms
High-Cut Filter ......................... 40 Hz–140 Hz (–24 dB/oct.)
Frequency Response ..................... 20 Hz–160 Hz (–10 dB)
Power Supply

U.S.A. and Canada models .................. AC 120 V, 60 Hz
Australia model ..................................... AC 240 V, 50 Hz
U.K. and Europe models ...................... AC 230 V, 50 Hz
General and China models

................... AC 110/120/220/240 V, 50/60 Hz

..................

(Adjustable with Voltage Selector)

YST-SW90

Type ................ Active Servo Processing Subwoofer System
Speaker Unit .................... 20 cm (8”) cone woofer (JA2161)

magnetic shielding type

Amplifier Output ........................................... 100 W/5 ohms
High-Cut Filter ......................... 50 Hz–150 Hz (–24 dB/oct.)
Frequency Response ..................... 23 Hz–170 Hz (–10 dB)
Power Supply

................... AC 110/120/220/240 V, 50/60 Hz

(Adjustable with Voltage Selector)

TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple meas-
ures 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.

SPECIFICATIONS

Power Consumption .................................................... 100 W
Dimensions (W

D) ........... 235 mm

602 mm

463 mm

(9-5/16”

23-3/4”

18-1/4”)

Weight ...................................................... 20 kg (44 lbs. 1 oz.)

* Design and specifications are subject to change without notice.

Power Consumption ...................................................... 80 W
Dimensions (W

D) ........... 235 mm

485 mm

409 mm

(9-5/16”

19-1/8”

16-1/8”)

Weight .................................................... 14 kg (30 lbs. 13 oz.)

* Design and specifications are subject to change without notice.

The power cannot be turned on.

No sound.

Sound level is too low.

The unit does not turn on
automatically.

The unit turns off (on standby)
unexpectedly.

The unit turns on unexpectedly.

The power cord is not plugged in, or the Main
POWER switch is set to the OFF position.

The VOLUME control is set to 0.

Speaker wires are not connected securely.

Speaker wires are connected incorrectly.

Setting of the PHASE switch is not proper.

A source sound with few bass frequencies is
played.

It is influenced by standing waves.

The Main POWER switch is set to the OFF
position.

The STANDBY/ON button is set to OFF.

The AUTO STANDBY switch is set to the OFF
position.

The level of input signal is too low.

An influence of noise generated from external
equipment etc.

Plug the power cord into an AC outlet and/or set the
Main POWER switch to the ON position.

Turn the VOLUME control to right.

Connect them securely.

Connect them correctly; L (left) to L, R (right) to R, + to
+ and – to –.

Set the switch to the other position.

Play a source sound with bass frequencies.
Set the HIGH CUT control to a higher position.

Reposition the subwoofer or break up the parallel
surface by placing bookshelves etc. along the walls.

Set the Main POWER switch to the ON position.

Set the STANDBY/ON button to ON.

Set the AUTO STANDBY switch to the HIGH or LOW
position.

Set the AUTO STANDBY switch to the HIGH
position.

Move the unit farther away from such equipment and/
or change the position of connected speaker wires.
Otherwise, set the AUTO STANDBY switch to the
OFF position.

SYMPTOM

CAUSE

REMEDY

01-11,72_YST-SW160/90 ENG

00.7.20, 5:08 PM