SERVICE MANUAL I CONTENTS TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . . 1 FRONT AND REAR PANELS . . . . . . . . . . . . . . . 1 – 2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . . . 5 1 0 0 7 7 8 SERVICE MANUAL YST-MS50(M) POWERED MULTIMEDIA SPEAKERS PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 6 – 8 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . 10 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 – 15 PARTS LIST FOR CARBON RESISTORS . . . . . . . . 16 The contents of this Service Manual are applicable to the products with serial numbers of Z200001 and up. YST-MS50(M) 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 or 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, inevita- ble 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 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. IMPORTANT NOTICE BASS 0 10 SPEAKERS MULTIMEDIA POWERED YST-MS50 POWERED MULTIMEDIA SPEAKERS VOLUME www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. G Meter impedance should be equivalent to 1500 ohm shunted by 0.15µF. AC LEAKAGE TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET 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. 1 I FRONT AND REAR PANELS G Leakage current must not exceed 0.5mA. G Be sure to test for leakage with the AC plug in both polarities. M Satellite Speakers Front Panel M Satellite Speakers Rear Panel Lch Rch Lch Rch “CAUTION” “F1 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2.0A, 250V FUSE.” CAUTION F1 : REPLACE WITH SAME TYPE 2.0A, 250V FUSE. ATTENTION F1 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 2.0A, 250V. A V www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) M Subwoofer Front Panel 2 M Subwoofer Rear Panel U and C models A model B and G models www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) I SPECIFICATIONS Type ................................. Advanced Active Servo Technology Output Power Satellite ................. 20W+20W (1kHz, 4 ohms at T.H.D.=10%) Subwoofer ................... 40W (100Hz, 5 ohms at T.H.D.=10%) Input Sensitivity ...................... 200mV (1kHz, 4 ohms at 20W) Input Impedance ....................................................... 25 kohms Frequency Response .................................... 32 Hz to 20 kHz Driver Satellite Tweeter ................................... 19mm (3/4") balanced dome Magnetic shielding type Midrange ........................................................ 8cm (3") cone Magnetic shielding type Subwoofer ................................................. 16cm (6-1/2") cone Magnetic shielding type Power Consumption ........................................................ 65 W Power Supply U, C models .................................................... AC120V, 60 Hz A model ........................................................... AC240V, 50 Hz B, G models .................................................... AC230V, 50 Hz Dimensions (W X H X D) Satellite ..................................................... 97 x 159 x 178 mm (3-13/16" x 6-1/4" x 7") Subwoofer .............................................. 350 x 210 x 321 mm (13-3/4" x 8-1/4" x 12-5/8") Weight Satellite ................................................ 0.7 kg (1 lbs. 9 oz) x 2 Subwoofer ................................................ 8 kg (17 lbs. 10 oz) Finish ....................................................................... White color Black color Accessories 3.5mm stereo mini plug cable (1.8m) x 1 RCA pin plug cable (1.8m) x 1 8 pin plug cable (1.8m) x 1 8 pcs of nonskid pad x 1set * Specifications subject to change without notice. G Satellite Speaker U . . . . . . . . . . . . . USA model C . . . . . . . . . Canadian model A . . . . . . . . Australian model B . . . . . . . . . . . British model G . . . . . . . . . European model 3 Unit : mm (inch) G DIMENSIONS 97 (3-13/16") 178 (7") 166(6-17/32") 159 (6-1/4") G Subwoofer 210 (8-1/4") 321 (12-5/8") 350 (13-3/4") www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) I INTERNAL VIEW 4 M Satellite Speakers M Subwoofer w q e r y u t Note: The Satellite Speakers are available by the speaker unit (L ch or R ch). Individual parts of the Satellite Speakers are not available. (See page 14 and 15 of the PARTS LIST.) Satellite Speaker (L ch) q MAIN (B) P.C.B. Satellite Speaker (R ch) w MAIN (C) P.C.B. e MAIN (D) P.C.B. Lch Rch Subwoofer r MAIN (E) P.C.B. t MAIN (A) P.C.B. y SPEAKER UNIT (Subwoofer) u MAIN (F) P.C.B. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) Fig. 2 Fig. 1 G Disassemble of the Subwoofer 1. Removal of the Rear Panel Ass’y. a. Remove 8 screws ( q ) in Fig. 1, and remove the rear panel ass’y. * Arrow marks ( ) are printed to identify the screws to be removed. b. Disconnect one connector in Fig. 1. c. Disconnect the Speaker cord in Fig. 1. * When assembling the Rear Panel Ass'y, check to ensure that the packing is not damaged so as to prevent air leak- age from occurring. 2. Removal of the Front Panel Ass’y The front panel assy is fixed to the cabinet with dowels at 6 locations. * As a screwdriver (for slotted head screw) is used for removal, use special care not to cause damage to the Cabinet. a. Using the screwdriver insert in the gaps between the front panel ass’y and cabinet (bottom side first), push up the front panel ass’y. b. Remove the front panel ass’y while taking it out. (Front panel ass’y can not to remove completely.) 3. Removal of the Speaker a. Set up the front panel ass’y in the direction of the arrow, in Fig. 2. b. Remove 4 screws ( w ) in Fig. 2, and remove the speaker. Dowels Front Panel Ass’y Cabinet Connector Gaps Speaker Cord Rear Panel Ass’y Speaker Front Panel Ass’y q w 5 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com A B C D E F G H 1 2 3 4 5 6 YST-MS50(M) 6 7 MAIN ( A ) P. C. B. TO : SPEAKER (WOOFER) FROM : POWER CORD WH BE FROM : MAIN ( F ) FROM : MAIN ( E ) TO RIGHT SPEAKER TO LEFT SPEAKER RE WH WH: U, C BE: A, B, G BL: U, C BR: A, B, G MAIN ( E ) P. C. B. BASS TO : MAIN ( A ) MAIN ( F ) P. C. B. POWER WH BE TO : MAIN ( A ) MAIN ( B ) P. C. B. TO SUB Wo. L + – + – 2.2µ SPEAKER (MIDRANGE) SPEAKER (TWEETER) BL RE RE I PRINTED CIRCUIT BOARD (Component side) M Satellite Speaker (L ch) M Subwoofer Ref. No. Location D2 B2 D3 F3 D4 F2 D5 E2 D6 E3 D7 E3 D8 E3 Ref. No. Location IC1 F2 IC2 E3 IC4 C2 IC5 C2 IC6 E2 IC7 E3 G Semiconductor Location Ref. No. Location Q3 F3 Q4 F2 Q5 E2 Q6 F2 Q7 E2 Q8 E2 w w w . x i a o y u 1 6 3 . c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com A B C D E F G H 1 2 3 4 5 6 YST-MS50(M) I BLOCK DIAGRAM 8 9 MAIN ( C ) P. C. B. TO : MAIN ( D ) VOLUME (HEADPHONE) (POWER) 2 1 7 5 8 4 3 6 MAIN ( D ) P. C. B. TO SUB Wo. INPUT2 INPUT1 R + – + – 2.2µ SPEAKER (MIDRANGE) SPEAKER (TWEETER) RE BL RE FROM : MAIN ( C ) Q2 Q3 Q8 SW1 POWER SW2 F1 D2 IC4 GND IN + – OUT IC5 GND IN OUT ~ POWER TRANSFORMER Regulator (POWER) Q1 3 5 VOLUME VR1 VR2 IR JK4 INPUT 1 INPUT 2 JK3 Rch SATELLITE SPEAKER Lch SATELLITE SPEAKER IL 3 1 G 4 7 6 JK2 8 2 5 +12 +12 +12 PWS TO SUB Wo. TO LEFT SPEAKER TO RIGHT SPEAKER OL 1 7 IC3 (NJM4556AL) OR RSP– RSP+ TWEETER MIDRENGE + + JK1 (HEADPHONE) – – TWEETER MIDRENGE + + – – SUBWOOFER SP+ SP– E –12 3 1 G 4 7 6 8 2 5 +12 E OL PWS OR RSP– RSP+ JK5 –12 –12 3 5 –12 –12 +12 +12 1 7 H. P. F 12dB/oct H. P. F 12dB/oct –12 +12 –6dB/oct –12 +12 –12dB/oct EQ Amp IC1,2 (NJM4558D) Mute Power Amp. IC6 (STK408-040E) IC1 IC2 IC2 IC1 IC7 IC7 (NJM4558D) +12 –12 2 7 20 1 18 +12 1 6 –12 6 +12 7 –12 3 17 SWI SRI SLI PWS1 RSP+ LSP+ PJ1 TO SUB Wo. PJ2 16 12 14 9 8 5 3 1 +B –B –B +B BASS Rectifier Q6 Q7 Q5 Q4 ~ A. N. I. C ON OFF I PRINTED CIRCUIT BOARD (Component side) M Satellite Speaker (R ch) Ref. No. Location IC3 B2 Q1 B2 Q2 B2 G Semiconductor Location w w w . x i a o y u 1 6 3 . c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com A B C D E F G H 1 2 3 4 5 6 I J K 7 8 YST-MS50(M) I SCHEMATIC DIAGRAM * All voltage are measured with a 10MΩ/V DC electric volt meter. * Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. * Schematic diagram is subject to change without notice. 10 IC1, 2, 7 : NJM4558D Dual OP-Amp IC3 : NJM4556AL Dual OP-Amp –IN1 2 +IN1 3 –VCC 4 +IN2 5 –IN2 6 OUT2 7 +VCC 8 OUT1 1 – + – + IC6 : STK408-040E 3 Channels AF Power Amp 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 THERMAL SENSOR SUB CH.1 – + CH.3 – + – + CH.2 SUB GND N. C. CH.2 –VCC CH.1 –VCC CH.1,2,3 +VCC CH.1 OUT CH.2 OUT PRE –VCC PRE +VCC CH.1 IN CH.1 NF C. C. C. BIAS CH.2 NF CH.2 IN CH.3 NF CH.3 IN CH.2 –VCC CH.3 OUT LIMITER A.N.I.C POWER AMP LPF HPF PHONE AMP POWER SUPPLY 0 0 0 0 0 0 11.7 0 0 0 -11.5 0 0 0 11.4 11.7 11.4 10.4 0 0 0 11.7 0 0 0 -11.5 0 0 0 -11.5 0 0 0 11.7 0 -27.1 -0.2 -0.2 -0.1 -0.1 -24.3 -0.1 -0.1 25.6 -25.5 0 0 27.1 -27.1 -27.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11.7 -11.5 -1.5 0 0 0 0 0 0 0 0 0 0 0.2 -11.5 0.2 0 11.7 11.7 0 27.1 -11.5 0 -27.1 -27.1 AC43.2 27.1 + – + – SATELLITE MIDRANGE L ch SATELLITE TWEETER L ch 2.2µ + – + – SATELLITE MIDRANGE R ch SATELLITE TWEETER R ch 2.2µ RE BL TO SUB Wo. (HEADPHONE) TO RIGHT SPEAKER TO LEFT SPEAKER MAIN (C) VOLUME (POWER) INPUT 2 INPUT 1 WOOFER + – MAIN ( D ) RE BL MAIN ( B ) TO SUB Wo. MAIN ( F ) POWER MAIN ( E ) BASS MAIN ( A ) WH RE BE WH BL WH BR BE ON OFF NJM4556AL NJM4558D 1SS133 Anode Cathode B C E 2SA1015 (O, Y) 2SC1815 (Y, GR) 2SC2878 (A, B) RBV-402 D G S NJM78M12FA STK408-040E PIN CONNECTION DIAGRAM OF TRAN- SISTORS, DIODES AND ICS. + – 2SK304 (E) 1 20 1: OUTPUT 2: COMMON 3: INPUT 3 2 1 NJM79M12FA 1:COMMON 2:INPUT 3:OUTPUT 3 2 1 1 4 8 1 8 – + OUT1 –IN1 –VCC +VCC OUT2 1 2 3 4 5 +IN1 –IN2 +IN2 – + 6 7 8 w w w . x i a o y u 1 6 3 . c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) 11 ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS : C.A.EL.CHP : CHIP ALUMI. ELECTROLYTIC CAP C.CE : CERAMIC CAP C.CE.ARRAY : CERAMIC CAP ARRAY C.CE.CHP : CHIP CERAMIC CAP C.CE.ML : MULTILAYER CERAMIC CAP C.CE.M.CHP : CHIP MULTILAYER CERAMIC CAP C.CE.SAFTY : RECOGNIZED CERAMIC CAP C.CE.TUBLR : CERAMIC TUBULAR CAP C.CE.SMI : SEMI CONDUCTIVE CERAMIC CAP C.EL : ELECTROLYTIC CAP C.MICA : MICA CAP C.ML.FLM : MULTILAYER FILM CAP C.MP : METALLIZED PAPER CAP C.MYLAR : MYLAR FILM CAP C.MYLAR.ML : MULTILAYER MYLAR FILM CAP C.PAPER : PAPER CAPACITOR C.PLS : POLYSTYRENE FILM CAP C.POL : POLYESTER FILM CAP C.POLY : POLYETHYLENE FILM CAP C.PP : POLYPROPYLENE FILM CAP C.TNTL : TANTALUM CAP C.TNTL.CHP : CHIP TANTALUM CAP C.TRIM : TRIMMER CAP CN : CONNECTOR CN.BS.PIN : CONNECTOR, BASE PIN CN.CANNON : CONNECTOR, CANNON CN.DIN : CONNECTOR, DIN CN.FLAT : CONNECTOR, FLAT CABLE CN.POST : CONNECTOR, BASE POST COIL.MX.AM : COIL, AM MIX COIL.AT.FM : COIL, FM ANTENNA COIL.DT.FM : COIL, FM DETECT COIL.MX.FM : COIL, FM MIX COIL.OUTPT : OUTPUT COIL DIOD.ARRAY : DIODE ARRAY DIODE.BRG : DIODE BRIDGE DIODE.CHP : CHIP DIODE DIODE.VAR : VARACTOR DIODE DIOD.Z.CHP : CHIP ZENER DIODE DIODE.ZENR : ZENER DIODE DSCR.CE : CERAMIC DISCRIMINATOR FER.BEAD : FERRITE BEADS FER.CORE : FERRITE CORE FET.CHP : CHIP FET FL.DSPLY : FLUORESCENT DISPLAY FLTR.CE : CERAMIC FILTER FLTR.COMB : COMB FILTER MODULE FLTR.LC.RF : LC FILTER ,EMI GND.MTL : GROUND PLATE GND.TERM : GROUND TERMINAL HOLDER.FUS : FUSE HOLDER IC.PRTCT : IC PROTECTOR JUMPER.CN : JUMPER CONNECTOR JUMPER.TST : JUMPER, TEST POINT L.DTCT : LIGHT DETECTING MODULE Note) Those parts marked with “#” are not included in the P.C.B. ass'y. L.EMIT : LIGHT EMITTING MODULE LED.DSPLY : LED DISPLAY LED.INFRD : LED, INFRARED MODUL.RF : MODULATOR, RF PHOT.CPL : PHOTO COUPLER PHOT.INTR : PHOTO INTERRUPTER PHOT.RFLCT : PHOTO REFLECTOR PIN.TEST : PIN, TEST POINT PLST.RIVET : PLASTIC RIVET R.ARRAY : RESISTOR ARRAY R.CAR : CARBON RESISTOR R.CAR.CHP : CHIP RESISTOR R.CAR.FP : FLAME PROOF CARBON RESISTOR R.FUS : FUSABLE RESISTOR R.MTL.CHP : CHIP METAL FILM RESISTOR R.MTL.FLM : METAL FILM RESISTOR R.MTL.OXD : METAL OXIDE FILM RESISTOR R.MTL.PLAT : METAL PLATE RESISTOR RSNR.CE : CERAMIC RESONATOR RSNR.CRYS : CRYSTAL RESONATOR R.TW.CEM : TWIN CEMENT FIXED RESISTOR R.WW : WIRE WOUND RESISTOR SCR.BND.HD : BIND HEAD B-TITE SCREW SCR.BW.HD : BW HEAD TAPPING SCREW SCR.CUP : CUP TITE SCREW SCR.TERM : SCREW TERMINAL SCR.TR : SCREW, TRANSISTOR SUPRT.PCB : SUPPORT, P.C.B. SURG.PRTCT : SURGE PROTECTOR SW.TACT : TACT SWITCH SW.LEAF : LEAF SWITCH SW.LEVER : LEVER SWITCH SW.MICRO : MICRO SWITCH SW.PUSH : PUSH SWITCH SW.RT.ENC : ROTARY ENCODER SW.RT.MTR : ROTARY SWITCH WITH MOTOR SW.RT : ROTARY SWITCH SW.SLIDE : SLIDE SWITCH TERM.SP : SPEAKER TERMINAL TERM.WRAP : WRAPPING TERMINAL THRMST.CHP : CHIP THERMISTOR TR.CHP : CHIP TRANSISTOR TR.DGT : DIGITAL TRANSISTOR TR.DGT.CHP : CHIP DIGITAL TRANSISTOR TRANS : TRANSFORMER TRANS.PULS : PULSE TRANSFORMER TRANS.PWR : POWER TRANSFORMER ASS’y TUNER.AM : TUNER PACK, AM TUNER.FM : TUNER PACK, FM TUNER.PK : FRONT-END TUNER PACK VR : ROTARY POTENTIOMETER VR.MTR : POTENTIOMETER WITH MOTOR VR.SW : POTENTIOMETER WITH ROTARY SW VR.SLIDE : SLIDE POTENTIOMETER VR.TRIM : TRIMMER POTENTIOMETER I ELECTRICAL PARTS PARTS LIST I WARNING Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. G Carbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL PARTS List. For the parts No. of the carbon resistors, refer to last page. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) 12 P.C.B. MAIN Schm Ref. PART NO. Description Remarks New Parts * Schm Ref. PART NO. Description Remarks New Parts * * AAX31030 P. C. B. MAIN ( UC) 353086 * AAX31040 P. C. B. MAIN ( ABG) 353090 CB1 VB858700 CN. BS. PIN 8P CB4 VD004600 CN. BS. PIN 3P CB5 VP206500 HOLDER. FUS EYF-52BC CB6 VP206500 HOLDER. FUS EYF-52BC C1 VJ 836900 C. EL 10uF 16V C2 VV020100 C. EL 220uF 10V C3 FG211470 C. CE 47pF 50V C4 VJ 836900 C. EL 10uF 16V C5 VV020100 C. EL 220uF 10V C6 FG211470 C. CE 47pF 50V C7 VJ 836900 C. EL 10uF 16V C8 VJ 836900 C. EL 10uF 16V Z C9 VS741700 C. CE. SAFTY 0. 01uF 275V C10 VF964800 C. EL 100uF 16V C11 UA654330 C. MYLAR 0. 033uF 50V C12 UA654330 C. MYLAR 0. 033uF 50V C13 VJ 836900 C. EL 10uF 16V C14 UA654330 C. MYLAR 0. 033uF 50V C15 UA654330 C. MYLAR 0. 033uF 50V C16 VJ 836900 C. EL 10uF 16V C17 UR759470 C. EL 4700uF 35V C18 UR857470 C. EL 47uF 35V C19 UR759470 C. EL 4700uF 35V C20 UR857470 C. EL 47uF 35V C21 FG212470 C. CE 470pF 50V C22 FG212470 C. CE 470pF 50V C23 UA655100 C. MYLAR 0. 1uF 50V C24 VJ 836900 C. EL 10uF 16V C25 UR866220 C. EL 2. 2uF 50V C26 UR867100 C. EL 10uF 50V C27 UR866220 C. EL 2. 2uF 50V C28 VJ 836900 C. EL 10uF 16V C29 UR867100 C. EL 10uF 50V C30 UA655100 C. MYLAR 0. 1uF 50V C31 UM397330 C. EL 33uF 16V C32 UA655150 C. MYLAR 0. 15uF 50V C33 UA655390 C. MYLAR 0. 39uF 50V C34 UJ 668100 C. EL 100uF 50V C35 UJ 668100 C. EL 100uF 50V C36 UM397330 C. EL 33uF 16V C37 FG211150 C. CE 15pF 50V C38 FG211150 C. CE 15pF 50V C39 UA655100 C. MYLAR 0. 1uF 50V C40 VJ 837200 C. EL 47uF 16V C41 VJ 837200 C. EL 47uF 16V C42 UM397330 C. EL 33uF 16V C43 UA653390 C. MYLAR 3900pF 50V C44 UA655180 C. MYLAR 0. 18uF 50V C45 UA653470 C. MYLAR 4700pF 50V C46 VD916400 C. EL 2. 2uF 50V C47 VD916400 C. EL 2. 2uF 50V C48 UA654470 C. MYLAR 0. 047uF 50V C49 UA654470 C. MYLAR 0. 047uF 50V C50 FG214100 C. CE 0. 01uF 50V C51 FG214100 C. CE 0. 01uF 50V C52 UA653100 C. MYLAR 1000pF 50V C53 UA653100 C. MYLAR 1000pF 50V C54 VJ 839100 C. EL 1uF 50V C55 VJ 839100 C. EL 1uF 50V C56 UA655100 C. MYLAR 0. 1uF 50V C57 UA655100 C. MYLAR 0. 1uF 50V C58 UA655470 C. MYLAR 0. 47uF 50V C59 UA655100 C. MYLAR 0. 1uF 50V C60 VJ 836900 C. EL 10uF 16V C61 VJ 836900 C. EL 10uF 16V D1 VY660300 LED( gr) SLP-277B-51 Z D2 VC971500 DIODE. BRG RBV-402 4. 0A 200V 069612 D3 i F004600 DIODE 1SS133 D4 i F004600 DIODE 1SS133 D5 i F004600 DIODE 1SS133 D6 i F004600 DIODE 1SS133 D7 i F004600 DIODE 1SS133 D8 i F004600 DIODE 1SS133 Z F1 KB000660 FUSE 400mA 250V( ABG) Z F1 VT951300 FUSE 2A 250V ( UC) IC1 XN324A00 IC NJ M4558DV IC2 XN324A00 IC NJ M4558DV IC3 XP844A00 IC NJ M4556AL IC4 XJ 602A00 IC NJ M78M12FA IC5 XD343A00 IC NJ M79M12FA Z IC6 XV809A00 IC STK408-040E 25W IC7 XN324A00 IC NJ M4558DV J K1 V3666400 J ACK. MNI HTJ -035-27A J K2 V3317500 J ACK. DIN 8P J K3 V3317400 J ACK. MNI 1P J K4 V3317400 J ACK. MNI 1P J K5 VV881000 CN. DIN 8P CMS5008-0101 PJ 1 V3407500 J ACK. PIN 1P PJ 2 VU581900 J ACK. PIN 1P Q1 i C287820 TR 2SC2878 A, B Q2 i C287820 TR 2SC2878 A, B Q3 i A101590 TR 2SA1015 O, Y Q4 i C1815M0 TR 2SC1815 Y, GR Q5 i A101590 TR 2SA1015 O, Y Q6 i C1815M0 TR 2SC1815 Y, GR Q7 i A101590 TR 2SA1015 O, Y Q8 V3028000 FET 2SK304 E Z R37 HV455100 R. CAR. FP 100Ω 1/4W Z R38 HV455100 R. CAR. FP 100Ω 1/4W R39 HV453470 R. CAR. FP 4. 7Ω 1/4W R46 HV453470 R. CAR. FP 4. 7Ω 1/4W R55 HV456100 R. CAR. FP 1KΩ 1/4W R57 HV454820 R. CAR. FP 82Ω 1/4W R58 HV453470 R. CAR. FP 4. 7Ω 1/4W www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com YST-MS50(M) YST-MS50(M) 13 P.C.B. MAIN Schm Ref. PART NO. Description Remarks New Parts * Schm Ref. PART NO. Description Remarks New Parts * R59 VE869300 R. MTL. OXD 0. 1 2W Z R60 HV453100 R. CAR. FP 1Ω 1/4W Z R61 HV453100 R. CAR. FP 1Ω 1/4W SW1 VS066500 SW. PUSH SPPH13-W Z* SW2 V8377400 SW. POWER SY16-52-4 354986 VR1 V2261700 VR A50KΩ VR2 VZ496100 VR A5KΩ BB070700 GND. MTL V4097600 HOLDER. LED LH-5-14 Ei 030086 SCR. BND. HD 3x8 MFZN2Y Ei 330166 SCR. BND. HD 3x16 MFC2BL www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com A B C D E 1 2 3 4 5 6 7 YST-MS50(M) I EXPLODED VIEW 14 6-3 6-3-1 (E) 5-1 8 202 x 1 204 x 1 201 x 1 203 x 1 6-12 6-4 6-6 1 5-6 302 301 5-7 5-33 5-31 5-8 5-20 5-12 5-17 5-17 5-1 5-14 5-31 5-15 5-15 5-16 5-16 5-32 5-34 5-11 6-12 5-5 5-1 6-1 6-2 6-11 2 20 20 (A) (F) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Ref . No. PART NO. Descri pt i on Remarks Market s New Parts * YST-MS50(M) YST-MS50(M) I MECHANICAL PARTS 15 * 1 AAX31070 CABINET ASS' Y WH 353458 * 1 AAX31060 CABINET ASS' Y BL 353457 * 2 X2009A00 DRIVER, WOOFER 16cm J A1687 353214 * 5- 1 AAX31030 P. C. B. ASS' Y MAIN 353086 UC * 5- 1 AAX31040 P. C. B. ASS' Y MAIN 353090 ABG Z* 5- 5 X2113A00 POWER TRANSFORMER 353131 UC Z* 5- 5 X2114A00 POWER TRANSFORMER 353132 A Z* 5- 5 X2115A00 POWER TRANSFORMER 353133 BG Z* 5- 6 V8366300 POWER CORD 353587 UC Z* 5- 6 V8366500 POWER CORD 355104 A Z* 5- 6 V8366600 POWER CORD 355105 B Z* 5- 6 V8366400 POWER CORD 355106 G 5- 7 CB072750 CORD STOPPER SR- 4N- 4 078569 5- 8 CB069250 BINDING TIE BK- 1 080558 * 5- 11 AAX31170 REAR PANEL 353582 UC * 5- 11 AAX31180 REAR PANEL 353583 A * 5- 11 AAX31190 REAR PANEL 353584 BG * 5- 12 AAX31050 COVER 352528 * 5- 14 AAX31020 BUTTON POWER 352529 5- 15 V2583100 PACKING, A 044414 5- 16 V2583200 PACKING, B 044415 * 5- 17 AAX31130 PACKING, MOLD 5x55 335431 5- 20 VZ655300 BUSH 084849 5- 31 EN335030 BIND HEAD BONDING TAP. SCREW 3x10 MFC2BL 075321 5- 32 EX601360 BIND HEAD P- TITE SCREW 3x10 MFC2BL 5- 33 ED330086 BIND HEAD SCREW 3x8 MFC2BL 075573 5- 34 EK396010 BIND HEAD S- TITE SCREW 4x8 MFC2BL 075180 6- 1 V3370900 FRONT PANEL WH 049622 6- 1 V3371000 FRONT PANEL BL 049623 6- 2 V3374600 PORT 050337 * 6- 3 AAX31150 FRONT GRILLE ASS' Y WH 353371 * 6- 3 AAX31160 FRONT GRILLE ASS' Y BL 353372 6- 3- 1 V3371600 EMBLEM 6- 4 V3374700 KNOB, VOLUME WH 049656 6- 4 V3374800 KNOB, VOLUME BL 049677 6- 6 V2490000 PORT RING 044359 6- 11 EK093030 BIND HEAD P- TITE SCREW 3x10 MFZN2Y 6- 12 EP600280 BIND HEAD P- TITE SCREW 3x8 MFZN2Y 018079 8 VZ655300 BUSH 084849 20 Ei 340206 BIND HEAD TAPPING SCREW 4x20 MFZN2BL ACCESSORIES 201 VS494400 CABLE, MINI PLUG 1. 8m 1pc 040878 202 VT309500 RCA PIN CABLE 1. 8m 1pc 019086 203 VZ663800 DIN PLUG CABLE 8P 1. 8m 1pc 354879 204 VS104300 NON SKID PAD 8pcs/set 011716 * 301 AAX31080 SATELLITE SPEAKER UNIT L WH 351937L * 301 AAX31100 SATELLITE SPEAKER UNIT L BL 351942L * 302 AAX31090 SATELLITE SPEAKER UNIT R WH 351937R * 302 AAX31110 SATELLITE SPEAKER UNIT R BL 351942R www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Parts List for Carbon Resistors 1/6W Type Part No. HF45 7100 HF45 7110 HF85 7120 HF45 7130 HF45 7150 HF45 7180 HF45 7220 HF45 7240 HF85 7270 HF45 7300 HF45 7330 HF45 7360 HF45 7390 HF45 7470 HF45 7510 HF45 7560 HF45 7620 HF45 7680 HF45 7820 HF45 7910 HF45 8100 HF45 8110 HF45 8120 HF45 8150 HF45 8180 HF85 8220 HF45 8270 HF45 8300 HF45 8330 HF85 8390 HF45 8470 HF85 8560 HF85 8680 HF85 8820 HF45 9100 ❊ HF85 9150 HF85 9180 HF85 9220 HF85 9330 ❊ HF85 9470 1/4W Type Part No. HF45 7100 HF45 7110 HJ35 7120 HF45 7130 HF45 7150 HF45 7180 HF45 7220 HF45 7240 HJ35 7270 HF45 7300 HF45 7330 HF45 7360 HF45 7390 HF45 7470 HF45 7510 HF45 7560 HF45 7620 HF45 7680 HF45 7820 HF45 7910 HF45 8100 HF45 8110 HF45 8120 HF45 8150 HF45 8180 HJ35 8220 HF45 8270 HF45 8300 HF45 8330 HJ35 8390 HF45 8470 HJ35 8560 HJ35 8680 HJ35 8820 HF45 9100 HJ35 9120 HJ35 9150 HJ35 9180 HJ35 9220 HJ35 9330 HJ35 9390 HJ35 9470 Value 10 kΩ 11 kΩ 12 kΩ 13 kΩ 15 kΩ 18 kΩ 22 kΩ 24 kΩ 27 kΩ 30 kΩ 33 kΩ 36 kΩ 39 kΩ 47 kΩ 51 kΩ 56 kΩ 62 kΩ 68 kΩ 82 kΩ 91 kΩ 100 kΩ 110 kΩ 120 kΩ 150 kΩ 180 kΩ 220 kΩ 270 kΩ 300 kΩ 330 kΩ 390 kΩ 470 kΩ 560 kΩ 680 kΩ 820 kΩ 1.0 MΩ 1.2 MΩ 1.5 MΩ 1.8 MΩ 2.2 MΩ 3.3 MΩ 3.9 MΩ 4.7 MΩ 1/6W Type Part No. HF85 3100 ❊ HF85 3220 HF85 3330 HF85 3470 HF85 3560 HF45 4100 HF85 4150 HF45 4220 HF85 4270 HF45 4330 HF85 4390 HF45 4470 HF45 4560 HF45 4680 HF45 4750 HF45 4820 HF45 4910 HF45 5100 HF85 5110 HF45 5120 HF45 5150 ❊ HF45 5180 HF45 5200 HF45 5220 HF45 5270 HF45 5330 HF45 5390 HF45 5430 HF45 5470 HF45 5510 HF45 5560 HF45 5680 HF45 5820 HF45 5910 HF45 6100 HF45 6120 HF45 6150 HF45 6180 HF85 6200 HF45 6220 HF85 6240 HF45 6270 HF45 6300 HF45 6330 HF85 6360 HF45 6390 HF45 6470 HF45 6510 HF45 6560 HF45 6680 HF45 6820 HF45 6910 1/4W Type Part No. HJ35 3100 HJ35 3180 HJ35 3220 HJ35 3330 HJ35 3470 HJ35 3560 HF45 4100 HJ35 4150 HF45 4220 HJ35 4270 HF45 4330 HJ35 4470 HF45 4470 HF45 4560 HF45 4680 HF45 4750 HF45 4820 HF45 4910 HF45 5100 HJ35 5110 HF45 5120 HF45 5150 HJ35 5160 HF45 5180 HF45 5200 HF45 5220 HF45 5270 HF45 5330 HF45 5390 HF45 5430 HF45 5470 HF45 5510 HF45 5560 HF45 5680 HF45 5820 HF45 5910 HF45 6100 HF45 6120 HF45 6150 HF45 6180 HJ35 6200 HF45 6220 HJ35 6240 HF45 6270 HF45 6300 HF45 6330 HJ35 6360 HF45 6390 HF45 6470 HF45 6510 HF45 6560 HF45 6680 HF45 6820 HF45 6910 Value 1.0 Ω 1.8 Ω 2.2 Ω 3.3 Ω 4.7 Ω 5.6 Ω 10 Ω 15 Ω 22 Ω 27 Ω 33 Ω 39 Ω 47 Ω 56 Ω 68 Ω 75 Ω 82 Ω 91 Ω 100 Ω 110 Ω 120 Ω 150 Ω 160 Ω 180 Ω 200 Ω 220 Ω 270 Ω 330 Ω 390 Ω 430 Ω 470 Ω 510 Ω 560 Ω 680 Ω 820 Ω 910 Ω 1.0 kΩ 1.2 kΩ 1.5 kΩ 1.8 kΩ 2.0 kΩ 2.2 kΩ 2.4 kΩ 2.7 kΩ 3.0 kΩ 3.3 kΩ 3.6 kΩ 3.9 kΩ 4.7 kΩ 5.1 kΩ 5.6 kΩ 6.8 kΩ 8.2 kΩ 9.1 kΩ 1992 1/4W Type HF45 1/6W Type HF85 1/4W Type HJ35 10mm 5mm YST-MS50(M) YST-MS50(M) 16 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com