YAMAHA YST-MS30_MS35 维修电路原理图.pdf

100695 POWERED MULTIMEDIA SPEAKERS YST-MS30/YST-MS35D TO SERVICE PERSONNEL . 1 FRONT AND REAR PANELS. 12 SPECIFICATIONS. 34 INTERNAL VIEW . 4 DISASSEMBLY PROCEDURES . 5 ICONTENTS USB PORT OPERATION CHECK TEST . 613 BLOCK DIAGRAM. 1415 PRINTED CIRCUIT BOARD . 1617 SCHEMATIC DIAGRAM . 18 PARTS LIST . 1927 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 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. IMPORTANT:The presentation or sale of this manual to any individual of firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. 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 distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. 1 YST-MS30/YST-MS35D YST-MS30 YST-MS35D I TO SERVICE PERSONNEL 1. Critical Components information. Components having special characteristics are marked and 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 insu- lated from supply circuits. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. 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. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE I FRONT AND REAR PANELS Satellite Speakers Left YST-MS35D only YST-MS35D only RearFront Top RearFront Top Right 2 YST-MS30/YST-MS35D YST-MS30 YST-MS35D Subwoofer YST-MS35D U and C models only YST-MS35D U and C models only A model onlyB and G models only Rear FrontTop YST-MS35D only YST-MS35D only 3 YST-MS30/YST-MS35D YST-MS30 YST-MS35D Dimensions (W x H x D) Satellite65x75x119mm (2.6x3x7-4.7) Subwoofer183x196x183mm (7.2x7.7x7.2) Weight SatelliteLeft: 0.36kg (13 oz.) Right: 0.45kg (1Ibs.) Subwoofer2.3kg (5Ibs. 1oz.) Finish YST-MS30 YST-MS30WComputer white color YST-MS30BBlack color YST-MS35D YST-MS35DWComputer white color YST-MS35DBBlack 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. modelB .British model C . Canadian modelG .European model A . Australian model TypeAdvanced Yamaha Active Servo Technology (Advanced Y. S. T) Output Power Satellite6W+6W (1kHz, 4 ohms at T.H.D.=10%) Subwoofer18W (100Hz, 4 ohms at T.H.D.=10%) Input Sencitivity200mV (1kHz, 4 ohms at 6W) Input Impedance20 kohms Frequency Response Satellite+Subwoofer45Hz to 20kHz Crossover Frequency Satellite/Subwooferfc=180Hz Speaker Unit Satellite:5cm(2) cone (JA05U8), Magnetic Shielding Type Subwoofer:12cm(5) cone (JA1286), Magnetic Shielding Type Input Sction YST-MS30 Subwoofer3.5mm stereo mini jack for audio-signal x2 YST-MS35D Subwoofer3.5mm stareo mini jack for audio-signal x2 SubwooferUSB digital x1 Output Sction SubwooferRCA pin jack connected to Left speaker 8 pin jack connected to Right speaker Operating Section Satellite(standby/on)Switch Volume control SubwooferBass control Power Supply(AC adapter) U, C modelsAC120V/60Hz A modelsAC240V/50Hz B, G modelsAC230V/50Hz 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. I SPECIFICATIONS 4 YST-MS30/YST-MS35D YST-MS30 YST-MS35D DIMENSIONS M Satellite SpeakerM Subwoofer I 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.) M LeftM Right 1Satellite Speaker Unit L 2Satellite Speaker Unit R 3P. C. B. AMP (3) Subwoofer 4Speaker Unit 5P. C. B. AMP (1) 6P. C. B. AMP (4) (YST-MS35D only) 7P. C. B. MAIN (2) Units : mm (inch) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 65 (2.6) 119 (4.7) 183 (7.2) 183 (7.2) 75 (3) 65 (2.6) 65 (2.6) 119 (4.7) 75 (3) 65 (2.6) 8.2 (0.3) 123 5 6 7 4 196 (7.7) Left Right 5 YST-MS30/YST-MS35D YST-MS30 YST-MS35D I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.) Disassemble of the Subwoofer 1. Removal of the Rear Panel Assy. a. Remove 1 knob from the rear panel assy in Fig. 1. b. Remove 8 screws ( 1 ) in Fig. 1, and remove the rear panel assy from the cabinet assy. c. Disconnect the speaker cord in Fig. 1. Fig. 2 Fig. 1 2. Removal of the Speaker Unit a. Remove 4 screws ( 2 ) in Fig. 2, and remove the speaker unit from the cabinet assy. 3. Removal of the P. C. B. Assy a. Remove 2 screws (3) in Fig. 3, and remove the P. C. B. AMP (1) from the rear panel assy. 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 assy. d. Remove 3 screws (5) in Fig. 3, and remove the P. C. B. AMP (2) from the rear panel assy. YST-MS35D only e. Remove 2 screws (6) in Fig. 3, and remove the P. C. B. AMP (4) from the rear panel assy. f. Disconnect 2 connectors (CN2 and CN5) from the P. C. B. AMP (4) in Fig. 3. Fig. 3 Cabinet Assy Rear Panel Assy Speaker Cord Knob Cabinet Assy Speaker Unit 11111 22222 Rear Panel Assy 33333 66666 55555 44444 P.C.B. AMP (1) Mold Case CN1CN3 P.C.B. AMP (4) CN2 CN5 P.C.B. AMP (2) CN3 CN1 YST-MS35D I 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 6 YST-MS30/YST-MS35D 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. 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 computers manufacturer or dealer if you have any questions. 7 YST-MS30/YST-MS35D 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 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 YST-MS35D USB Audio,” and “YAMAHA YST-MS35D USB Composite Device” as shown below. The contents of the list on the display shown above may vary depending on the system environment. 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. Che