Service Manual
Page 1
...(s) indicated on the cover. The data provided is copyrighted by the users, and have accumulated by an authorized YAMAHA Retailer or the appointed service representative. Discharge any service required should be performed by grounding yourself to the ground ...and failure of authorized YAMAHA Retailers and their service personnel. It has been assumed that any static electricity your body may have therefore not been restated. Should any form. YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050 IMPORTANT NOTICE ...
...(s) indicated on the cover. The data provided is copyrighted by the users, and have accumulated by an authorized YAMAHA Retailer or the appointed service representative. Discharge any service required should be performed by grounding yourself to the ground ...and failure of authorized YAMAHA Retailers and their service personnel. It has been assumed that any static electricity your body may have therefore not been restated. Should any form. YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050 IMPORTANT NOTICE ...
Service Manual
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... WHATSOEVER! If you come in the production of chemicals found by 0.15µF. Avoid prolonged, unprotected contact between solder and your hands before handling food. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1. Critical Components Information Components having specifications equal to verify that of the lead solder, be sure to use one of...
... WHATSOEVER! If you come in the production of chemicals found by 0.15µF. Avoid prolonged, unprotected contact between solder and your hands before handling food. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1. Critical Components Information Components having specifications equal to verify that of the lead solder, be sure to use one of...
Service Manual
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... T .......... Australian model B .......... Singapore model J Japanese model Advanced Yamaha Active Servo Tech- model C .......... I SPECIFICATIONS Type Advanced Yamaha Active Servo Technology II Output Power / ग़ྗ (100 Hz, 5 ohms, 10% T.H.D.) [YST-FSW150 75 W [YST-FSW050 50 W Dynamic Power 5 ohms) [YST-FSW150 130 W [YST-FSW050 100 W Input Sensitivity 50 Hz, 75 W / 5 ohms, INPUT (PJ)) [YST-FSW150 100 mV [YST-FSW050 50 mV Input Impedance INPUT (PJ...
... T .......... Australian model B .......... Singapore model J Japanese model Advanced Yamaha Active Servo Tech- model C .......... I SPECIFICATIONS Type Advanced Yamaha Active Servo Technology II Output Power / ग़ྗ (100 Hz, 5 ohms, 10% T.H.D.) [YST-FSW150 75 W [YST-FSW050 50 W Dynamic Power 5 ohms) [YST-FSW150 130 W [YST-FSW050 100 W Input Sensitivity 50 Hz, 75 W / 5 ohms, INPUT (PJ)) [YST-FSW150 100 mV [YST-FSW050 50 mV Input Impedance INPUT (PJ...
Service Manual
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... when removing the bottom grille ass'y and front panel ass'y. 44 44 1. As a flatblade screwdriver is fixed to the cabinet ass'y. Removal of driver a. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I DISASSEMBLY PROCEDURES Disconnect the power cable from the AC outlet. • Required tools • Flatblade screwdriver • Metalblade or the like may cause damage...
... when removing the bottom grille ass'y and front panel ass'y. 44 44 1. As a flatblade screwdriver is fixed to the cabinet ass'y. Removal of driver a. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I DISASSEMBLY PROCEDURES Disconnect the power cable from the AC outlet. • Required tools • Flatblade screwdriver • Metalblade or the like may cause damage...
Service Manual
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...;ά 3 Fig. 3 Bottom panel ass'y 44: 9 Remove 4 screws (1) and then pull out the driver. (Fig. 2) e. Remove 12 screws (3). (Fig. 3) * Screws (3) are identified with arrow marks ( ). YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 d. c. Removal of the Driver. (Fig. 2) E 1 JHʣ F JHʣ 1 Driver $POOFDUPS ίωΫλʔ Fig. 2 2. MAIN (2) P.C.B.
...;ά 3 Fig. 3 Bottom panel ass'y 44: 9 Remove 4 screws (1) and then pull out the driver. (Fig. 2) e. Remove 12 screws (3). (Fig. 3) * Screws (3) are identified with arrow marks ( ). YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 d. c. Removal of the Driver. (Fig. 2) E 1 JHʣ F JHʣ 1 Driver $POOFDUPS ίωΫλʔ Fig. 2 2. MAIN (2) P.C.B.
Service Manual
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...push the front panel ass'y upward until it comes off. (Fig. 4) Note: • • Removing the front panel ass'y with dowels. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 3. Removal of front panel ass'y * The front panel ass'y is used for secure installation. (The front panel ass'y will come off ...easily if its dowels are fitted into dowel holes without using the metalblade or the like .) YST-FSW150 Flatblade screwdriver 44 44 44 44 B JH C 44 JHʣ D "44 JH 44 44 44 44 44 Bushing ϒογ...
...push the front panel ass'y upward until it comes off. (Fig. 4) Note: • • Removing the front panel ass'y with dowels. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 3. Removal of front panel ass'y * The front panel ass'y is used for secure installation. (The front panel ass'y will come off ...easily if its dowels are fitted into dowel holes without using the metalblade or the like .) YST-FSW150 Flatblade screwdriver 44 44 44 44 B JH C 44 JHʣ D "44 JH 44 44 44 44 44 Bushing ϒογ...
Service Manual
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...;"44: Rear cover ϦΞΧόʔ 5 4 Bushing ϒογϡ Fig. 5 When Checking the P.C.B.: • Connect all the connectors removed during disassem- YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 4. d.
...;"44: Rear cover ϦΞΧόʔ 5 4 Bushing ϒογϡ Fig. 5 When Checking the P.C.B.: • Connect all the connectors removed during disassem- YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 4. d.
Service Manual
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YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I BLOCK DIAGRAM YST-FSW150/YST-FSW050 INPUT S1 PJ1 IC1A 6S2 5 + 7 VR1 VOLUME S3 L.P.F. 6dB/oct 3 + IC1B 1 2- H.P.F. 12dB/oct POWER AMP. +B RY1 S4 3 10 - 12 S0 2 IC3 + 9 -B A.N.IC IC2 DRIVER WOOFER + R59 0.1 SYSTEM CONTROL +10 JK1 DRIVER Q10,11 AC IN LIMITER Q5,6,7,8 RY2 POWER SW1 +B F1 T1 POWER SUPPLY D20 AC5 IC4 REGULATOR IC5 D1 -B POWER INDICATOR PROTECTION Q2,4,9,12 +15 -15 12 L.P.F. 12dB/oct IC6B 5+ 7 - IC6A 3+ 1 -
YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I BLOCK DIAGRAM YST-FSW150/YST-FSW050 INPUT S1 PJ1 IC1A 6S2 5 + 7 VR1 VOLUME S3 L.P.F. 6dB/oct 3 + IC1B 1 2- H.P.F. 12dB/oct POWER AMP. +B RY1 S4 3 10 - 12 S0 2 IC3 + 9 -B A.N.IC IC2 DRIVER WOOFER + R59 0.1 SYSTEM CONTROL +10 JK1 DRIVER Q10,11 AC IN LIMITER Q5,6,7,8 RY2 POWER SW1 +B F1 T1 POWER SUPPLY D20 AC5 IC4 REGULATOR IC5 D1 -B POWER INDICATOR PROTECTION Q2,4,9,12 +15 -15 12 L.P.F. 12dB/oct IC6B 5+ 7 - IC6A 3+ 1 -
Service Manual
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... D19 H3 Q14 I1 D20 F2 CB4 SP- Location Ref no . A B 1 I PRINTED CIRCUIT BOARDS MAIN (3) P.C.B. (Side A) VOLUME 2 1 8 S3 3 E S2 +15 -15 LEDG LED IC1 W2 C D E F G YST-FSW150 MAIN (1) P.C.B. (Side A) POWER OFF/SYSTEM ON Power indicator IC3 12 H B, G models 1 W3A WH W3B BE IC2 8 1 W10A3 W10A2 W10A1 W9 W8 MAIN (2) P.C.B. (Side A) 4 BE WH... A) R, L models WH YE RE BR BE BE W11B W7B W12B W13B W14B W6B W6B W7B AC5 -B 15G +B -15 +15 R1B R1A E3 PRT SO E S4 I J YST-FSW150/YST-FSW050 • Semiconductor Location Ref no .
... D19 H3 Q14 I1 D20 F2 CB4 SP- Location Ref no . A B 1 I PRINTED CIRCUIT BOARDS MAIN (3) P.C.B. (Side A) VOLUME 2 1 8 S3 3 E S2 +15 -15 LEDG LED IC1 W2 C D E F G YST-FSW150 MAIN (1) P.C.B. (Side A) POWER OFF/SYSTEM ON Power indicator IC3 12 H B, G models 1 W3A WH W3B BE IC2 8 1 W10A3 W10A2 W10A1 W9 W8 MAIN (2) P.C.B. (Side A) 4 BE WH... A) R, L models WH YE RE BR BE BE W11B W7B W12B W13B W14B W6B W6B W7B AC5 -B 15G +B -15 +15 R1B R1A E3 PRT SO E S4 I J YST-FSW150/YST-FSW050 • Semiconductor Location Ref no .
Service Manual
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... IC1 C3 CB4 SP- Location Ref no . DRIVER SP+ WOOFER C56 K, B, G models G3 W10B3 W10B2 W10B1 W10B3 W10B2 W10B1 A B C YST-FSW150/YST-FSW050 1 MAIN (3) P.C.B. (Side A) VOLUME 2 1 IC1 W2 8 S3 3 E S2 +15 -15 LEDG LED D E F G YST-FSW050 MAIN (1) P.C.B. (Side A) POWER 12 OFF/SYSTEM ON Power indicator H K, B, G models IC3 1 W3A WH W3B BE IC2 8 1 W10A3 W10A2...
... IC1 C3 CB4 SP- Location Ref no . DRIVER SP+ WOOFER C56 K, B, G models G3 W10B3 W10B2 W10B1 W10B3 W10B2 W10B1 A B C YST-FSW150/YST-FSW050 1 MAIN (3) P.C.B. (Side A) VOLUME 2 1 IC1 W2 8 S3 3 E S2 +15 -15 LEDG LED D E F G YST-FSW050 MAIN (1) P.C.B. (Side A) POWER 12 OFF/SYSTEM ON Power indicator H K, B, G models IC3 1 W3A WH W3B BE IC2 8 1 W10A3 W10A2...
Service Manual
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... marked s and must be replaced with parts having specifications equal to those originally installed. # Schematic diagram is subject to change without notice. 15 A B C D E F G H I J K L M N SCHEMATIC DIAGRAMS YST-FSW150 MAIN 1 YST-FSW150/YST-FSW050 MAIN (1) POWER AMP.
... marked s and must be replaced with parts having specifications equal to those originally installed. # Schematic diagram is subject to change without notice. 15 A B C D E F G H I J K L M N SCHEMATIC DIAGRAMS YST-FSW150 MAIN 1 YST-FSW150/YST-FSW050 MAIN (1) POWER AMP.
Service Manual
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... D3SBA20 4A 200V 1 2 34 NJM4558L 1 NJM78M15FA NJM79M15FA STK404-120 8 12 3: IN 3: COM 1: OUT 2: COM 1: OUT 2: IN 1 V723510 JG-11-T FG64410 0.01/50 FG65122 22P O O A B C D E F G H I J K L M N YST-FSW150/YST-FSW050 1 MAIN YST-FSW050 2 INPUT 3 JK1 SYSTEM CONNECTOR 4 L.P.F. +15.0 0 IC1 0 0 5 MAIN (3) 6 (R, L models) MAIN (8) W11B POWER TRANSFORMER W7B W10B1 W12B 7 W13B W10B2 W14B W6B W10B3 W6A 8 W7A MAIN...
... D3SBA20 4A 200V 1 2 34 NJM4558L 1 NJM78M15FA NJM79M15FA STK404-120 8 12 3: IN 3: COM 1: OUT 2: COM 1: OUT 2: IN 1 V723510 JG-11-T FG64410 0.01/50 FG65122 22P O O A B C D E F G H I J K L M N YST-FSW150/YST-FSW050 1 MAIN YST-FSW050 2 INPUT 3 JK1 SYSTEM CONNECTOR 4 L.P.F. +15.0 0 IC1 0 0 5 MAIN (3) 6 (R, L models) MAIN (8) W11B POWER TRANSFORMER W7B W10B1 W12B 7 W13B W10B2 W14B W6B W10B3 W6A 8 W7A MAIN...
Service Manual
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YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I REPLACEMENT PARTS LIST • ELECTRICAL COMPONENT PARTS WARNING G Components having special characteristics are marked s and must be replaced with parts having specifications equal to ...
YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I REPLACEMENT PARTS LIST • ELECTRICAL COMPONENT PARTS WARNING G Components having special characteristics are marked s and must be replaced with parts having specifications equal to ...
Service Manual
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... 2 8-1 (7) 23 8-4 205 9 205 37 23 Packing B 5 R, L models 8-19 *2 8-1 (8) 6 8-1 (6) Packing B 8-11 8-19 *2 8-1 (2) 8-26 23 23 8-37 8-11 9 8-34 36 8-32 8-32 8-31 8-37 7 22 A B C D E YST-FSW150/YST-FSW050 1 • OVERALL ASS'Y YST-FSW150 *1 Used bushing, once removed, cannot be reused. Be sure to each length of the removed used bushing 201 204 x 2 4-6 23 4-20 4-11 4-5 Packing...
... 2 8-1 (7) 23 8-4 205 9 205 37 23 Packing B 5 R, L models 8-19 *2 8-1 (8) 6 8-1 (6) Packing B 8-11 8-19 *2 8-1 (2) 8-26 23 23 8-37 8-11 9 8-34 36 8-32 8-32 8-31 8-37 7 22 A B C D E YST-FSW150/YST-FSW050 1 • OVERALL ASS'Y YST-FSW150 *1 Used bushing, once removed, cannot be reused. Be sure to each length of the removed used bushing 201 204 x 2 4-6 23 4-20 4-11 4-5 Packing...
Service Manual
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use pack- 37 ing A and cut it to use a new bushing in place of packing as replacement parts. 35 203 To replace packing C, D and G. A B C D E YST-FSW150/YST-FSW050 1 YST-FSW050 *1 Used bushing, once removed, cannot be reused. Be sure to each length of the removed used bushing 4-11 201 Packing C Packing D 202 2 4-15 4-13 ...
use pack- 37 ing A and cut it to use a new bushing in place of packing as replacement parts. 35 203 To replace packing C, D and G. A B C D E YST-FSW150/YST-FSW050 1 YST-FSW050 *1 Used bushing, once removed, cannot be reused. Be sure to each length of the removed used bushing 4-11 201 Packing C Packing D 202 2 4-15 4-13 ...