POWERED SPEAKER

YST-M40/M45D

SERVICE MANUAL

I CONTENTS

FRONT PANELS.. 1 REAR PANELS.. 1 INSTALLING AND VERIFYING THE YST-M45D SPEAKER DEVICE DRIVERS. 2 EXPLODED VIEW (YST-M40). 4 EXPLODED VIEW (YST-M45D).. 5

I SPECIFICATIONS

Type.. Advanced Yamaha Active Servo Technology Output Power.. 12W + 12W (1kHz, 4) Input Sensitivity.. 200mV (1kHz, 4 at 12W) Input Impedance... 20k Frequency Response.. 70Hz to 20kHz Speaker Unit. 8cm (3.5") full-range cone, magnetic shielding Output Impedance.. 330 Output Level.. 0.7V (at 200mV Rated Input) Power Supply... DC 15V Dimensions (W x H x D) Right channel. 95 x 248 x 203 mm (3.74" x 9.76" x 7.99") Left channel. 95 x 248 x 199 mm (3.74" x 9.76" x 7.83") Weight Right channel... 1.1 kg (2.43 lbs.) Left channel.. 0.8 kg (1.76 lbs.) Finish.. YST-M40W/YST-M45DW: Computer white YST-M40B/YST-M45DB: Black Accessories. AC Adaptor (DC15V, 1.2A) x 1 3.5mm stereo mini plug cable (1.8 m) x 1 RCA pin plug cable (1.8 m) x 1 8pcs of non skid pads x 1 set USB cable (2 m) x 1 / CD-ROM x 1 (YST-M45D only)
* Specifications are subject change without notice due to product improvements.

100706

P.O.Box 1, Hamamatsu, Japan

I FRONT PANELS

VOLUME
POWERED MULTIMEDIA SPEAKERS YST-M40
POWERED MULTIMEDIA SPEAKERS YST-M45D

TREBLE

3D SURROUND

I REAR PANELS

POWERED MULTIMEDIA SPEAKERS MODEL NO. YST-M40
POWERED MULTIMEDIA SPEAKERS MODEL NO. YST-M45D

INPUT 1

INPUT 2

TO RIGHT SPEAKER

TO LEFT SPEAKER

OUTPUT

(ADJ. VOL.)

USB INPUT

DC 15V

MADE IN CHINA

I INSTALLING AND VERIFYING THE YST-M45D SPEAKER DEVICE DRIVERS
Please follow these steps to install the Yamaha YSTM45D speaker device drivers in your Windows 98 system using the included CD-ROM, and verify that Windows 98 recognizes the installed device drivers and that audio CD, sound generated while using software, and system sounds from the computer will be output via the USB port.
Verifying the installation of device drivers
After you have installed the device drivers as explained in the previous section, follow the steps below to verify that Windows 98 recognizes these drivers. 1. Select "Start," then select "Settings-->Control Panel" from the menu. 2. Double-click "System" in the control Panel to display the "System Properties" panel, select the "Device Manager" tab, then select "View devices by type." 3. Click the plus sign (+) for "Human Interface Devices," "Sound, video and game controllers," and "Universal Serial Bus Controller" in the device list, and check to see if "Human Interface Devices," "YAMAHA YSTM45D USB Audio," and "YAMAHA YST-M45D USB Composite Device" are listed respectively.
Select "View devices by type".
Installing the device drivers
Notes: Do not connect the PC using the USB cable before installing the YST-M45D device drivers. If you accidentally connect them, refer to "Reinstalling the Device Driver" on page 3. Before starting, check the "System Requirements" section to see if your PC supports YST-M45D. Make sure that no other CD-ROM is loaded in the CD-ROM drive and that you quit all application programs. Have your Windows 98 CD-ROM ready when you install the Yamaha YST-M45D speaker device drivers. You may need it in some cases. The installation procedure may differ from the following instructions depending on the system environment. Follow the instructions that appear in the dialog box. Please contact your computers manufacturer or dealer if you have any questions. 1. Connect the YST-M45D speakers as shown in the diagram on page 2 of Owner's Manual and connect the AC adaptor to the AC receptacle. At this time, do not connect the YST-M45D to the computer using the USB cable. 2. Turn on your PC and, if its not running already, start Windows 98. 3. Insert the YAMAHA YST-M45D CD-ROM into the CDROM or DVD-ROM drive. If the Windows 98 Autorun feature is turned on, the installation start up screen appears automatically. 4. Continue with the installation as prompted. If the Windows 98 Autorun feature is not turned on, you must start the installation manually, as explained below. 5. Double-click the My Computer icon. The My Computer window opens. 6. Double-click the CD-ROM icon. The installation start up screen appears. 7. Continue with the installation as prompted. 8. After the installation is completed, connect the YSTM45D to the computer using the USB cable.
"Human Interface Devices" is listed. Select "View devices by type".

"YAMAHA YST-M45D USB Composite Device" is listed. "YAMAHA YST-M45D USB Audio" is listed.
The contents of the list on the display shown above may vary depending on the system environment. Note: If the letter an exclamation point (!), or a question mark (?) appears to the left of the USB device name, check the following: Make sure that you have installed the drivers from the included CD-ROM. Check to see if the USB cable is connected securely. The AC adaptor plug is connected to the AC receptacle. If these actions do not resolve the situation, refer to your Windows documentation or ask your computer dealer to enable the USB port. 2
Re-installing the Device Driver
If you connect the PC and the YST-M45D via the USB ports using the USB cable before you install the included application software, the YST-M45D device driver will not recognize the devices correctly, and will display the following items in the "System Properties" window: USB Audio Device in the list of "Sound, video and game controllers" USB Composite Device in the list of "Universal serial bus controller" To recognize the devices correctly, re-install the driver following the steps below: 1. Make sure the YST-M45D is connected to the PC via the USB cable. 2. Click the "+" symbol next to "Universal serial bus controller" to display the list. 3. Make sure that "USB Composite Device" appears in the list and click to select it.
Ensuring the output of audio data from the USB port
Follow the steps below to ensure that the USB port on your computer is ready to output CD audio. 1. Select "Start," then select "Settings-->Control Panel" from the menu. 2. Double-click "Multimedia" icon in the Control Panel to display the "Multimedia Properties" window, and under "Playback" in the "Audio" tab, make sure that "YAMAHA YST-M45D USB Audio" is selected as the "Preferred device." (Depending on the computer, if multiple USB audio devices are connected, the number of devices may appears in parentheses.)
"YAMAHA YST-M45D USB Audio" selected as Preferred device
The contents of the list on the display shown left may vary depending on the system environment.
"USB Composite Device" is listed.
4. Click [Remove]. The dialog shown below appears. Click [OK]. "USB Audio Device" will be deleted.
3. Select the "CD Music" tab, make sure that the text below the "CD Music Volume" is Active, and check "Enable digital CD audio for this CD-ROM device." If the text below "CD Music Volume" appears in gray, you cannot check the "Enable digital CD audio for this CD-ROM device" box. In this case, your CD-ROM drive may not be supported. Consult your computer manufacturer or dealer.

Enable digital CD audio for this CD-ROM device
5. Make sure that "USB Composite Device" has been deleted from the list of "Universal serial bus controller." 6. Disconnect the USB cable. 7. Insert the included CD-ROM into the CD-ROM drive and re-install the device driver. 8. Check the device driver. Refer to "Verifying the installation of device drivers" on page 2.
Now you are ready to enjoy your YST-M45D Speaker System! 3
I EXPLODED VIEW (YST-M40)

I PARTS LIST

Ref. No. 13 PART NO. V4609900 V4609700 V4609800 V4609500 VS494400 VT309500 VS104300 AC ADAPTOR AC ADAPTOR AC ADAPTOR AC ADAPTOR CABLE, MINI PLUG RCA PIN CABLE LEG Description DC15V 1.2A DC15V 1.2A DC15V 1.2A DC15V 1.2A 1.8m 1.8m 8pcs. NONSKID PADS Remarks Markets (G) (A) (B) (UC)

* New Parts

I EXPLODED VIEW (YST-M45D)
Ref. No. 15 PART NO. V4609500 V4609700 V4609800 V4609900 VS494400 VT309500 VS104300 V4368200 V5325100 AC ADAPTOR AC ADAPTOR AC ADAPTOR AC ADAPTOR CABLE, MINI PLUG RCA PIN CABLE LEG USB CABLE CD-ROM Description DC15V 1.2A DC15V 1.2A DC15V 1.2A DC15V 1.2A 1.8m 1.8m 8pcs. NONSKID PADS 1P 2.0m 5.Remarks Markets (UC) (A) (B) (G)

* New Parts 5

POWERED MULTIMEDIA SPEAKERS

YST-M45D

OWNERS MANUAL MODE DEMPLOI

VOLUME

POWERED MULTIMEDIA SPEAKERS YST- M45D

TREBLE

3D SURROUND
Explanation of Graphical Symbols

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
IMPORTANT! Please record the serial number of this unit in the space below. Model: Serial No.: The serial number is located on the rear of the unit. Retain this Owners Manual in a safe place for future reference.

SAFETY INSTRUCTIONS

Read Instructions All the safety and operating instructions should be read before the unit is operated. Retain Instructions The safety and operating instructions should be retained for future reference. Heed Warnings All warnings on the unit and in the operating instructions should be adhered to. Follow Instructions All operating and other instructions should be followed. Water and Moisture The unit should not be used near water for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc. Carts and Stands The unit should be used only with a cart or stand that is recommended by the manufacturer. should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart combination to overturn.
10 Power Sources The unit should be connected to
a power supply only of the type described in the operating instructions or as marked on the unit.
11 Power-Cord Protection Power-supply cords
should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the unit.
12 Cleaning The unit should be cleaned only as recommended by the manufacturer.
13 Nonuse Periods The power cord of the unit
should be unplugged from the outlet when left unused for a long period of time.
14 Object and Liquid Entry Care should be taken so
that objects do not fall into and liquids are not spilled into the inside of unit.
6A An unit and cart combination
15 Damage Requiring Service The unit should be
serviced by qualied service personnel when:
A. The power-supply cord or the plug has been

damaged; or

B. Objects have fallen, or liquid has been spilled

into the unit; or

Wall or Ceiling Mounting The unit should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation The unit should be situated so that its location or position does not interfere with its proper ventilation. For example, the unit should not be situated on a bed, sofa, rug, or similar surface, that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet that may impede the ow of air through the ventilation openings. Heat The unit should be situated away from heat sources such as radiators, stoves, or other appliances that produce heat.
C. The unit has been exposed to rain; or D. The unit does not appear to operate normally or
exhibits a marked change in performance; or
E. The unit has been dropped, or the enclosure

damaged.

16 Servicing The user should not attempt service
the unit beyond those means described in the operating instructions. All other servicing should be referred to qualied service personnel.
17 Power Lines An outdoor antenna should be
located away from power lines.
18 Grounding or Polarization Precautions should be
taken so that the grounding or polarization is not defeated.
COMPLIANCE INFORMATION STATEMENT
(DECLARATION OF CONFORMITY PROCEDURE) Responsible Party: Address: Telephone: FAX: Type of Equipment: Model Name: Yamaha Corporation of America 6600 Orangethorpe Ave. Buena Park, CA90622 714-522-9011 714-527-5782 Powered Multimedia Speakers YST-M45D
This device complies with Part 15 of the FCC Rules. Operation is subject to the following 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. See user manual instructions if interference to radio reception is suspected.

FCC INFORMATION (U.S.A)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class B digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the product OFF and ON, please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line lter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America 6600 Orangethorpe Ave. Buena Park, CA90622, U.S.A.

FOR CANADIAN CUSTOMERS

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT AND FULLY INSERT. THIS CLASS B DIGITAL APPARATUS COMPLIES WITH CANADIAN ICES-003.
POUR LES CONSOMMATEURS CANADIENS
POUR VITER LES CHOCS LECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND. CET APPAREIL NUMRIQUE DE LA CLASSE B EST CONFORME LA NORME NMB-003 DU CANADA.

We Want You Listening For A Lifetime
YAMAHA and the Electronic Industries Associations Consumer Electronics Group want you to get the most out of your equipment by playing it at a safe level. One that lets the sound come through loud and clear without annoying blaring or distortion and, most importantly, without affecting your sensitive hearing. Since hearing damage from loud sounds is often undetectable until it is too late, YAMAHA and the Electronic Industries Associations Consumer Electronics Group recommend you to avoid prolonged exposure from excessive volume levels.

Cautions

Please read the following operating precautions before use: When you disconnect the AC adaptor from the AC outlet, hold the plug, not the cord. If you plan not to use the YST-M45Ds for a while, disconnect the AC adaptor from the AC outlet. Always disconnect the AC adaptor from the AC outlet before making any connections. The YST-M45Ds do not contain any user serviceable parts. Refer all servicing to your Yamaha dealer. Never open the cabinet. If a foreign object drops into the set, contact your dealer, and do not use the YST-M45Ds. Otherwise, you may cause a re. Do not expose the YST-M45Ds to temperature extremes, direct sunlight, excessive dust, humidity, or vibration. Position the YST-M45Ds on a level, stable surface. Do not drop the YST-M45Ds, apply excessive force to their controls, or put heavy items on top of them. Do not place small metal objects on the speakers. Otherwise, the object may fall, possibly causing an injury. To protect the YST-M45D speakers, avoid microphone feedback, continuous and excessive output from electronic musical instruments, and excessive signal distortion. If the YST-M45Ds are located close to uorescent or neon lights, a slight hum may be heard. In this case, relocate the YST-M45Ds away from the light. Although the YST-M45D speakers are magnetically shielded, keep oppy disks and tapes away from them. The YST-M45Ds may cause picture distortion when located close to a television or computer monitor. In this case, move them away a short distance. Avoid sources of hum (transformers, motors). To prevent re or electrical shock, do not expose to rain and water. Do not use force on switches, knobs, or cables. When you move the YST-M45D, rst turn off the power to the speakers, then disconnect the AC adaptor from the AC outlet and the cables from the connected devices. Always turn the volume control counterclockwise to the minimum before starting to play the audio source: increase the volume gradually to an appropriate level after the playback has started. Though this speaker is a magnetically shielded type, there may be some inuence on the monitor picture depending on the type of monitor or the placement of the speaker. In such a case, place the speaker further apart from the monitor until there is no inuence on the monitor picture. When placing the provided AC adaptor on the desk, etc., be sure to x the adaptor on the desk, etc. to prevent it from falling. If the adaptor falls, it may cause personal injury or damage to the adaptor and/or other equipment. Note for headphone: When you use headphones, make sure that they have a cable of less than 3m. (UK and Europe models)

Table of Contents

Introducing the YST-M45D Speaker System. 1 Controls & Connectors.. 2 Installing USB driver.. 3 Microsoft Windows 98/98SE or Windows Me. 4 Microsoft Windows 2000 Professional. 6 Macintosh computer.. 8 Connecting to a non-USB system.. 8 Enjoying your YST-M45D Speaker System.. 8 Adjusting the Volume, Bass, and Treble. 8 Troubleshooting... 9 Non skid pad... 10 Specifications... 10

E-Cautions

Introducing the YST-M45D Speaker System
Thank you for purchasing the Yamaha YST-M45D Powered Multimedia Speakers. The YST-M45D Multimedia Speakers utilize Advanced Yamaha Active Servo Technology, which offers exceptionally high performance, allowing these compact speakers to produce a rich bass sound. They also employ USB technology to create a computer-based listening environment that is far superior to conventional multimedia speakers. They reproduce a clearer sound, with less noise and distortion, and never require a soundcard! Note: Do not connect the PC using the USB cable before installing the USB driver. Please inspect the package contents thoroughly for damage. If any item is missing or damaged, please contact the dealer from whom you purchased the YST-M45D.

English

INPUT 1

INPUT 2

RCA pin plug cable

TO LEFT SPEAKER

3.5 mm stereo mini plug cable

OUTPUT

(ADJ.VOL)

TO RIGHT SPEAKER

(not included) USB Cable

USB INPUT

ACTIVE SERVO PROCESSING SUBWOOFER SYSTEM YST-MSW10

Actve Servo Technology

HIGH CUT

HIGH LOW

DC 15V

SUBWOOFER

LEFT SPEAKER

RIGHT SPEAKER

AC adaptor
3.5 mm stereo mini plug cable 1 (Accessory) RCA pin plug cable 1 (Accessory) USB cable 1 (Accessory) AC adaptor (PA-M30) 1 (Accessory)
The package also contains eight non-skid pads to attach to the bottom of the speakers. Warning: Be sure to use the included AC adaptor. Using another AC adaptor may damage the speakers or cause a re.
Controls & Connectors

(Right speaker)

(Left speaker)
1 VOLUME control Allows you to adjust the volume level of the entire speaker system. Rotating the control clockwise will increase the volume level, and rotating the control counterclockwise will decrease the level. 2 (standby/on) button/indicator Press this button to turn on the power to the speaker system. Its indicator lights up. Press the button again to set the speaker system to standby mode. Before pressing this button, make sure that the VOLUME control setting is lowered. A small electrical current ows through the speaker system even if the standby/on button is turned off.
Headphone jack Connect a pair of stereo headphones here to monitor the sound. When you connect the headphones, the speakers will not output sound.

7 INPUT 1/2 You can input two audio sources to the speaker system from these input jacks simultaneously. For example, you can connect the output of a CD player and a personal computer here. The two audio sources are mixed together by the speaker system. 8 TO LEFT SPEAKER (on the right speaker) Use the RCA pin plug cable to connect this jack to the BTO RIGHT SPEAKER jack on the right speaker to this connector. 9 OUTPUT (ADJ. VOL) Use a 3.5mm stereo mini plug cable to connect this jack to a subwoofer to reinforce the low range. 0 USB INPUT Use the included USB cable to connect this port to the USB port on the computer. Signals input from both 7INPUT 1 (or 2) jack and USB INPUT jack simultaneously will be mixed together. A DC connector Connect the included AC adaptor to this connector. Press the (standby/on) button on the right speaker to turn the power on or standby. B TO RIGHT SPEAKER (on the left speaker) Use the RCA pin plug cable to connect this jack to the 8TO LEFT SPEAKER jack on the right speaker to this connector.
3 BASS control Allows you to adjust the volume level of the low range. Rotating the control clockwise will increase the volume level, and rotating the control counterclockwise will decrease the level. 4 TREBLE control Allows you to adjust the volume level of the high range. Rotating the control clockwise will increase the volume level, and rotating the control counterclockwise will decrease the level. 5 3D SURROUND switch Turn this switch on to add 3D surround sound to the stereo source sound. Press the switch to turn on the surround effect. Press it again to turn off the effect. This setting does not simulate the surround effect through the headphones.
About YMERSION (3D Enhancement) YMERSION is Yamahas proprietary technology that enhances the spread of a normal stereo source playback sound, creating three-dimensional acoustics using only two speakers. The 3D SURROUND switch on the right speaker enables you to turn the YMERSION effect on and off.

Installing USB driver

When connecting this unit and your computer with the USB cable and controlling this unit from the computer, you must install the following software on your computer. USB driver software: Necessary for this unit to communicate with your computer.. Use the software originally supplied with the OS (Operating System) running on your computer This section explains how to install the software. The installation method differs from the OS running on your computer. Refer to the instructions suitable for your OS below. * This manual uses terms utilized by the English operating system as shown on the computer monitor. If the operating system you are using is in another language, please replace the English terms with the terms used in your computers operating system.

Preparations before installation
Make sure that the USB cable is not connected to this unit and that your computer is not activated. Make sure that your computer meets the system requirements listed below. If your computer does not meet the system requirements, you can use the computer as an input source by connecting it to the analog or digital input(s) of this unit. In that case, however, the supplied Application Software cannot be used. You may be requested to insert your OSs CDROM during the installation, so please have it ready before commencing. The installing method may differ from the instructions below depending on the operating environment of your computer. In such a case, follow the instructions shown on the monitor. If you still have any question, inquire at the manufacturer of your computer or a computer dealer.

System requirements

Your computer must meet the following system requirements to use the supplied Application Software.
Microsoft Windows 98/98SE, Windows Me or Windows 2000 Professional
Operating System Microsoft Windows 98/98SE, Windows Me or Windows 2000 Professional Computer A computer with a USB port as a standard equipment and preinstalled with the above OS.
Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries.

Macintosh

Operating System Mac OS 9.0.4 or greater (USB Driver 1.4 or greater) Computer Macintosh computer with a USB port as a standard equipment
Macintosh is a trademark of Apple Computer, Inc., registered in the U.S. and other countries.

Installing the software

Microsoft Windows 98/98SE or Windows Me s Installing and checking the USB driver
1. Turn on your computer and, if its not running already, start Windows 98/98SE or Windows Me. 2. Connect the power cord (or AC adaptor) to a suitable AC outlet. This unit can be on or in standby mode when installing the driver. 3. Connect this unit to a USB port on the computer using the supplied USB cable. Windows automatically detects this unit and installs the necessary driver software. Make operations as indicated in the dialog box. You may be requested to insert your Windows OS CD-ROM. * The installation may take a longer time depending on the system environment. After the installation dialog box disappears, wait several minutes. Check that the USB driver has been installed successfully by following the procedure below. 4. Click the Windows Start button and select Settings, and then Control Panel. The Control Panel window appears. 5. Double-click the System icon. The System Properties window appears. 6. Click the Device Manager tab. The Device Manager window appears. 7. Click the View devices by type option button. 8. Click the + symbol next to Sound, video and game controllers, and make sure that USB Audio Device appears in the list, as shown. * The screen image is for Windows 98SE. Note: The device list on your computer may differ to that shown here. If ! or ? is shown at the head of the device name, check the followings: * The USB cable is rmly connected. * The AC power cord of this unit is plugged into an AC outlet. If the driver has not been successfully installed, disconnect the USB cable and connect it again. Then try to install the driver again. If installation still fails, restart Windows and try again. 9. Click the + symbol next to Human Interface Devices, and make sure that HID-compliant consumer control device and USB Human Interface Device appear in the list, as shown.

* The screen image is for Windows 98SE. 10. Click the + symbol next to Universal Serial Bus controllers and make sure that USB Composite Device appears in the list, as shown.
* The screen image is for Windows 98SE. * When using Windows Me, ? may be shown at the head of USB Copmposite Device in green. This means the USB driver has been installed with the Generic ID supplied with the operating system. (This is not an error message.)
Make the following settings on your computer after the installation of the driver is nished.
Setting of Audio and Audio CD [Windows 98/98SE only] Terminate all the activated applications. When using Windows 98SE, restart Windows, rst. 1. Click the Windows Start button and select Settings, and then Control Panel. 2. Double-click the Multimedia icon. 3. Click the Audio tab and select USB Audio Device at Preferred device of Playback. * Usually, this setting is automatically made. * If USB Audio Device does not appear, restart Windows. 4. Click the CD Music tab and select the CDROM drive for playing audio CDs. 5. Click the check box of Enable digital CD audio for this CD-ROM device to enter the check mark. * It may happen that the check box cannot be clicked because some CD-ROM drives cannot be used for playing audio CDs. 6. Click OK and close the Multimedia setting panel. 7. Restart Windows. Note: When using two or more drives, you must make
the above setting for each drive.
Checking sound output and adjusting volume [Windows 98/98SE and Windows Me] 1. Make the following operations on the front panel of this unit. a) Press button to turn on this unit. b) Use the volume control to adjust the volume. 2. Adjust the volume on the computer as follows. a) Double-click the speaker icon on the task tray, or select Start, Programs, Accessories, Entertainment in this order and click Volume Control. (The volume adjustment window appears.) b) Adjust the volume by dragging the Volume slider. Set the slider between the center and max. positions. * Do not enter the check mark in the Mute check box. If entered, sound output will stop. 3. Click the Windows Start button and select Settings, and then Control Panel. 4. Double-click the Sounds (or Sounds and Multimedia) icon. 5. Click the Sounds tab. 6. Check that the sound is output normally by outputting Default sound, etc. from Events (or Sound Events). * If no sound is heard, restart Windows and check again.
Checking the Audio setting [Windows Me only] 1. Click the Windows Me Start button and select Settings, and then Control Panel. 2. Double-click the Sounds and Multimedia icon. 3. Click the Audio tab and select USB Audio Device at Preferred device of Sound Playback. * Usually, this setting is automatically made. * If USB Audio Device does not appear, restart Windows.

Microsoft Windows 2000 Professional s Installing and checking the USB driver
1. Turn on your computer and, if its not running already, start Windows 2000 Professional, and log in with Administrator. 2. Connect the power cord (or AC adaptor) to a suitable AC outlet. This unit can be on or in the standby mode when installing the driver. 3. Connect this unit to a USB port on the computer using the supplied USB cable. Windows automatically detects this unit and installs the necessary driver software. * The installation may take a longer time depending on the system environment. After the dialog box for installation disappears, wait several minutes. Check that the USB driver has been installed successfully by following the procedure below. 4. Click the Windows Start button and select Settings, and then Control Panel. The Control Panel window appears. 5. Double-click the System icon. The System Properties window appears. 6. Select the Hardware tab, and click the Device Manager. The Device Manager window appears. 7. Select the View tab, and click the Devices by type option button. 8. Click the + symbol next to Sound, video and game controllers, and make sure that USB Audio Device appears in the list, as shown. 10. Click the + symbol next to Universal Serial Bus controllers and make sure that USB Composite Device appears in the list, as shown. 9. Click the + symbol next to Human Interface Devices, and make sure that HID-compliant consumer control device and USB Human Interface Device appear in the list, as shown.
Note: The device list on your computer may differ to that shown here. If ! or ? is shown at the head of the device name, check the followings: * The USB cable is rmly connected. * The AC power cord of this unit is plugged into an AC outlet. If the driver has not been successfully installed, disconnect the USB cable and connect it again. Then try to install the driver again. If installation still fails, restart Windows and try again.
Setting of Audio and Audio CD 1. Click the Windows Start button and select Settings, and then Control Panel. 2. Double-click the Sounds and Multimedia icon. 3. Click the Audio tab and select USB Audio Device at Preferred device of Sound Playback. * Usually, this setting is automatically made. 4. Click the Hardware tab and double-click the item of the DVD or CD-ROM to be used in the Devices. 5. Click the Properties tab, and click the check box of Enable digital CD audio for this CDROM device to enter the check mark. * It may happen that the check box cannot be clicked because some CD-ROM drives cannot be used for playing audio CDs. 6. Restart Windows, and log in with Administrator. Note: When using two or more drives, you must make the above setting for each drive.
Checking sound output and adjusting volume 1. Make the following operations on the front panel of this unit. a) Press button to turn on this unit. b) Use the volume control to adjust the volume. 2. Adjust the volume on the computer as follows. a) Double-click the speaker icon on the task tray, or select Start, Programs, Accessories, Entertainment in this order and click Volume Control. (The volume adjustment window appears.) b) Adjust the volume by dragging the Volume slider. Set the slider between the center and max. position. * Do not enter the check mark in the Mute check box. If entered, sound output will stop. 3. Click the Windows Start button and select Settings, and then Control Panel. 4. Double-click the Sounds and Multimedia icon. 5. Click the Sounds tab. 6. Check that the sound is output normally by outputting Default Beep, etc. from Sound Events. * If no sound is heard, restart Windows and check again.

Macintosh computer s Connections and setup
1. Connect the power cord (or AC adaptor) to a suitable AC outlet. 2. Start the Macintosh. 3. Connect this unit to a USB port on the computer using the supplied USB cable. The driver software for USB audio is automatically installed. 4. Press button to turn on this unit. Note: The sound output destination cannot be changed from Choose a device for sound output on the Control Panels. When using the internal speaker of the Macintosh as the sound output destination, disconnect the USB cable connecting this unit and the Macintosh. When using headphones with this unit connected to the USB port on the Macintosh, use the headphone jack on this unit, not the jack on the Macintosh. Since the Macintosh issues a start-up sound at power-on before the sound signal via the USB connection is activated, the start-up sound cannot be issued via the USB connection. To play the startup sound via this unit, you need a separate analog connection between this unit and the Macintosh. (When USB MIX is set to ON from the Setup Panel of the Application Software, you can mix the start-up sound via the analog connection with the same sound via the USB connection without making any change in the input selector settings.)
Checking sound output and adjusting volume 1. Make the following operations on the front panel of this unit. a) Press button to turn on this unit. b) Use the volume control to adjust the volume. 2. Check that the sound is output normally by outputting Alert Sounds, etc. from Sound on the Control Panels on the Macintosh. 3. Adjust the volume by dragging the Sound tab on the Control Panels. Set the tab between the center and max. position.
Connecting to a non-USB system
You can input analog audio signals into Inputs 1 and 2 (3.5 mm stereo mini plug input jacks) on the rear of right speaker and use the YST-M45D system like conventional multimedia speakers. (For example, you can connect the outputs from a soundcard.) Some games software does not support USB. In this case, instead of using the USB connection, connect Input 1 or 2 on the rear of right speaker to the audio output jack on your computer using a 3.5 mm stereo mini plug cable, and specify your card type. (For move information on setting, consult your computer manual or computer dealer.)

Enjoying your YST-M45D Speaker System
Adjusting the Volume, Bass, and Treble
First adjust the volume levels, bass, and treble using software controls (such as the Windows 98 Volume Control panel). After adjustment, use the VOLUME control on the right speaker to set the volume level of the speakers.

Troubleshooting

Refer to the chart below if this system does not function properly. If the problem you are experiencing is not listed below or if the instructions given below do not help, disconnect the AC adaptor and contact your authorized YAMAHA dealer or service center.

PROBLEM

The speakers are recognized as an unknown device by the computer.
The USB cable is not connected securely.

REMEDY

Remove the USB cable from the speaker and computer, then re-connect it securely. Also, turn off and on the power to the speakers. Turn off the power to the speakers, remove the USB cable, then turn on the power to the speaker again. If the USB Driver is still not recognized, re-install it. Insert the AC adaptor rmly into the AC outlet. Plug the AC adaptor completely into the AC outlet and DC connector, then turn on the (standby/on) button. Turn the speaker VOLUME control to the right to increase the volume. Turn up the volume on the connected device. Make the connections again, rmly, or use a different cable. Make sure you use the USB cable included in the package or an equivalent high-speed USB cable.
You did not complete the USB Driver Install procedure correctly.
No sound comes The AC adaptor is not properly plugged from the speakers. into the AC outlet. The (standby/on) button is turned off or the AC adaptor is not plugged into the AC outlet and the DC connector completely. The volume is set to minimum. The level of the input signal is too low. Connections are faulty or incomplete. You are using a slow-speed USB cable. Playback sound is interrupted. The 3D sound cannot be heard. Noise.
Playback is affected by other open applica- Close other open applications. tions. Turn down the volume on the connected device. Playback the stereo source. Make the connections again, rmly, or use a different cable. The sound source is monaural. Connections are faulty or incomplete.
Sound is distorted. The level of the input signal is too high.
Even if the (standby/on) button is turned off, a small amount of sound may be heard from the headphones if the VOLUME control is set to max. This is normal. If the VOLUME control is set to max. while the headphones are connected, you may hear a small amount of sound from the speakers. This is normal. Note 1: USB ports are delicate. Handle them with care. Do not insert USB plugs forcefully or you may damage the port. Note 2: For more information on issues related to OS, consult the your computer manual or your computer dealer.

Non skid pad

To prevent the speakers from sliding around, attach the supplied pads to the four points on the bottom of speaker, as shown. Place the speaker on a stable, at surface.

Specications

Type Driver Output power Input sensitivity Input impedance Frequency response Input jack Output jack Output level Headphone Output jack Output level Power supply (AC adaptor) Advanced Yamaha Active Servo Technology 8 cm (3") full range cone, magnetic shielding 12 W + 12 W (1 kHz, 4 at T.H.D. = 10%) 200 mV (1 kHz, 4 at 12 W) 20 k 70 Hz to 20 kHz 3.5 mm stereo mini jack for audio-signal 2 USB digital 1 3.5 mm stereo mini jack for audio-signal 0.7 V/330 (200 mV)
3.5 mm stereo mini jack for audio-signal 0.45 V/30 (200 mV) 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 Dimensions (W H D) Right speaker. 95 (3.7") 248 (9.8") 203 (8") mm Left speaker. 95 (3.7") 248 (9.8") 199 (7.8") mm Weight Right speaker. 1.1 kg (2.43 lbs) Left speaker. 0.8 kg (1.76 lbs) Accessories AC adaptor (PA-M30) 1 3.5 mm stereo mini plug cable 1 RCA pin plug cable 1 USB cable pcs of non skid pads 1 set * Specications subject to change without notice. Please contact an authorized Yamaha dealer for more information on this product or connections to your computer.

Printed in China

V770270