Yamaha yt ms35 schematic

POWERED MULTIMEDIA SPEAKERS

YST-MS30/YST-MS35D

SERVICE MANUAL

IMPORTANT NOTICE

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product

IMPORTANT:The presentation or sale of this manual to any individual of firm does not constitute

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity

IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before

may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service representative.

authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.

your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

you apply power to the unit.

■CONTENTS

TO SERVICE PERSONNEL ........................................... 1

FRONT AND REAR PANELS..................................... 1~2

SPECIFICATIONS.......................................................3~4

INTERNAL VIEW ............................................................ 4

DISASSEMBLY PROCEDURES .................................... 5

100695

USB PORT OPERATION CHECK TEST ................. 6~13

BLOCK DIAGRAM.................................................. 14~15

PRINTED CIRCUIT BOARD ...................................16~17

SCHEMATIC DIAGRAM ............................................... 18

PARTS LIST ............................................................19~27

YST-MS30/YST-MS35D

YST-MS30 YST-MS35D

■ TO SERVICE PERSONNEL

1. Critical Components information. Components having special characteristics are marked must be replaced with parts having specifications equal to those originally installed.

2. Leakage Current Measurement (For 120V Model only). When service has been completed, it is imperative that you verify that all exposed conductive surfaces are properly insulated from supply circuits.

● Meter impedance should be equivalent to 1500 ohm shunted by

0.15µF.

● Leakage current must not exceed 0.5mA.

● Be sure to test for leakage with the AC plug in both polarities.

and

WALL

OUTLET

EQUIPMENT

UNDER TEST

INSULATING

TABLE

AC LEAKAGE

TESTER OR

EQUIVALENT

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly

other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON

WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes

to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling

food.

■ FRONT AND REAR PANELS

Satellite Speakers

•

Left

Right

Top

YST -MS35D only

RearFront

Top

YST -MS35D only

RearFront

1

YST-MS30 YST-MS35D

YST -MS35D

U and C models only

YST -MS35D

U and C models only

A model only B and G models only

Rear

Front Top

YST -MS35D only

Subwoofer

•

YST-MS30/YST-MS35D

2

YST-MS30/YST-MS35D

■ SPECIFICATIONS

YST-MS30 YST-MS35D

Type Advanced Yamaha Active Servo Technology

(Advanced Y. S. T)

Output Power

Satellite 6W+6W (1kHz, 4 ohms at T.H.D.=10%) Subwoofer 18W (100Hz, 4 ohms at T.H.D.=10%)

Input Sencitivity 200mV (1kHz, 4 ohms at 6W) Input Impedance 20 kohms Frequency Response

Satellite+Subwoofer 45Hz to 20kHz

Crossover Frequency

Satellite/Subwoofer fc=180Hz

Speaker Unit

Satellite : 5cm(2") cone (JA05U8),

Magnetic Shielding Type

Subwoofer: 12cm(5") cone (JA1286),

Magnetic Shielding Type

Input Sction

YST-MS30

Subwoofer 3.5mm stereo mini jack for audio-signal x2

YST-MS35D

Subwoofer 3.5mm stareo mini jack for audio-signal x2 Subwoofer USB digital x1

Output Sction

Subwoofer RCA pin jack connected to Left speaker

8 pin jack connected to Right speaker

Operating Section

Satellite

Subwoofer Bass control

Power Supply(AC adapter)

U, C models AC120V/60Hz A models AC240V/50Hz B, G models AC230V/50Hz

(standby/on)Switch

Volume control

Dimensions (W x H x D)

Satellite 65x75x119mm

(2.6"x3"x7-4.7")

Subwoofer 183x196x183mm

(7.2"x7.7"x7.2")

Weight

Satellite Left: 0.36kg (13 oz.)

Right: 0.45kg (1Ibs.)

Subwoofer 2.3kg (5Ibs. 1oz.)

Finish

YST-MS30

YST-MS30W Computer white color YST-MS30B Black color

YST-MS35D

YST-MS35DW Computer white color YST-MS35DB Black color

Accessories

YST-MS30

AC adapter (DC15V, 1.2A)x1

3.5mm stereo mini plug cable with black color(1.8m) x1 8 pcs of nonskid pads x1set

YST-MS35D

AC adapter (DC15V, 1.2A)x1

3.5mm stereo mini plug cable with black color(1.8m) x1

USB cable (2m) x1

8 pcs of nonskid pads x1set

CD-ROM x1

System Requirements YST-MS35D

OS: Microsoft Windows 98 CPU: 200 MHz or faster Intel Pentium MMX processor or

equivalent HDD: At least 10 MB available space CD-ROM drive for driver installation USB port compatible with USB standards ver 1.0

* Specifications subject to change without votice.

U ....... U. S. A. model B .......British model

C ....... Canadian model G .......European model

A ....... Australian model

Intel and Pentium are registered trademarks and MMX is a trademark of Intel Corporation. Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries. All other trademarks are property of their respective owners.

3

YST-MS30 YST-MS35D

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

DIMENSIONS

•

▼ Satellite Speaker ▼ Subwoofer

Left

65

(2.6")

119

(4.7")

183

(7.2")

YST-MS30/YST-MS35D

183

(7.2")

75

(3")

65

(2.6")

Right

75

65

(2.6")

(3")

8.2

65

(0.3)

(2.6")

■ INTERNAL VIEW

Satellite Speakers

•

Notes:

The Satellite Speakers are available by the speaker unit (Left or Right). Individual parts of the Satellite Speakers are not available. (See page 23 and 24 of the PARTS LIST for YST-MS30, page 25 and 26 of the PARTS LIST for YST-MS35D.)

▼ Left ▼ Right

123

119

(4.7")

196

(7.7")

Units : mm (inch)

1 Satellite Speaker Unit L 2 Satellite Speaker Unit R 3 P. C. B. AMP (3)

Subwoofer

•

4

5

6 7

4 Speaker Unit 5 P. C. B. AMP (1) 6 P. C. B. AMP (4)

(YST-MS35D only)

7 P. C. B. MAIN (2)

4

YST-MS30/YST-MS35D

YST-MS30 YST-MS35D

■ DISASSEMBLY PROCEDURES

(Remove parts in disassembly order as numbered.)

Disassemble of the Subwoofer

•

1. Removal of the Rear Panel Ass'y.

a. Remove 1 knob from the rear panel ass'y in Fig. 1. b. Remove 8 screws ( 1 ) in Fig. 1, and remove the rear

panel ass'y from the cabinet ass'y.

c. Disconnect the speaker cord in Fig. 1.

Cabinet Ass'y

Rear Panel Ass'y

3. Removal of the P. C. B. Ass'y

a. Remove 2 screws (3) in Fig. 3, and remove the P. C. B.

AMP (1) from the rear panel ass'y.

b. Disconnect 2 connectors (CN1 and CN3) from the P. C.

B. AMP (1) in Fig. 3.

c. Remove 4 screws (4) in Fig. 3, and remove the mold

case from the rear panel ass'y.

d. Remove 3 screws (5) in Fig. 3, and remove the P. C. B.

AMP (2) from the rear panel ass'y.

YST-MS35D only

e. Remove 2 screws (6) in Fig. 3, and remove the P. C. B.

AMP (4) from the rear panel ass'y.

f. Disconnect 2 connectors (CN2 and CN5) from the P. C.

B. AMP (4) in Fig. 3.

Speaker Cord

Fig. 1

2. Removal of the Speaker Unit

a. Remove 4 screws (

speaker unit from the cabinet ass'y.

2 ) in Fig. 2, and remove the

Cabinet Ass'y

Speaker Unit

Knob

11

1

11

CN3

CN1

P.C.B. AMP (4)

CN1

P.C.B. AMP (1)

CN3

CN2

CN5

P.C.B. AMP (2)

Mold Case

Rear Panel Ass'y

33

3

33

66

6

66

55

5

55

44

4

44

Fig. 3

22

2

22

Fig. 2

5

YST-MS30/YST-MS35D

YST-MS35D

■ USB PORT OPERATION CHECK TEST

The YST-MS35D has a USB port. This USB port operation is checked be necessary whether or not normal state.

1. Installing and verifying the YST-MS35D speaker device drivers

Please follow these steps to install the Yamaha YST-MS35D 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 CD audio, sound generated while using software, and system sounds from the personal computer will be output via the USB port.

(1) Measuring instruments

• Personal Computer (Windows 98)

• CD-ROM (Accessory)

• USB Cable (Accessory)

• AC adapter (Accessory)

(2) System requirements

For digital audio streaming using a USB connection: OS: Microsoft Windows 98 CPU: 200 MHz or faster Intel Pentium MMX processor or equivalent HDD: At least 10 MB available space CD-ROM drive for driver installation USB port compatible with USB standards ver 1.0

(3) Installing the speaker device drivers

Notes:

• Do not connect the PC and the subwoofer using the USB cable before installing the YST-MS35D device

drivers. If you accidentally connect them, refer to “(5) Re-installing the Device Driver” on page 8.

• Before starting, check “(2) System Requirements” section, above, to see that your PC supports YST-MS35D.

• 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-MS35D 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 computer’s manufacturer or dealer if you hav e an y questions.

1. Connect the YST-MS35D speakers and connect the AC adapter to the AC receptacle. At this time, do not connect the subwoofer to the computer using the USB cable.

2. Turn on your PC and start Windows 98.

3. Insert the YAMAHA YST-MS35D CD-ROM into the CD-ROM 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 “Yamaha” CD-ROM icon.

The installation start up screen appears.

7. Continue with the installation as prompted.

8. After the installation is completed, connect the subwoofer to the computer using the USB cable.

6

YST-MS30/YST-MS35D

(4) 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 P anel to displa y 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 controller s,” and “Universal Serial Bus Controller” in the device list, and check to see if “Human Interface Devices,” “YAMAHA YST-MS35D USB Audio,” and “YAMAHA YST-MS35D USB Composite Device” as shown below.

YST-MS35D

Select "View devices by type".

"Human Interface Devices" is listed.

• The contents of the list on the display shown above may vary depending on the system environment.

Select "View devices by type".

"YAMAHA YST-MS35D USB Composite Device" is listed. "AMAHA YST-MS35D USB Audio" is listed.

Note: If an exclamation point (!), or a question mark (?) appears to the left of the USB device name,

check the ollowing:

1. Make sure that you have installed the drivers from the included CD-ROM.

2. Check to see if the USB cable is connected securely.

3. The AC adapter plug is connected to the AC receptacle.

7