Service Manual
Page 1
... on the cover. Modifications are, therefore, inevitable and specifications are subject to the industry, and more specifically YAMAHA Products, are continually striving to the unit. IMPORTANT: Turn the unit OFF during disassembly and part replacement. The...departments of authorized YAMAHA Retailers and their service personnel. YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050 IMPORTANT NOTICE This manual has been provided for the use of YAMAHA are already known and understood by an authorized YAMAHA Retailer or ...
... on the cover. Modifications are, therefore, inevitable and specifications are subject to the industry, and more specifically YAMAHA Products, are continually striving to the unit. IMPORTANT: Turn the unit OFF during disassembly and part replacement. The...departments of authorized YAMAHA Retailers and their service personnel. YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050 IMPORTANT NOTICE This manual has been provided for the use of YAMAHA are already known and understood by an authorized YAMAHA Retailer or ...
Service Manual
Page 2
... solder All of the P.C.B.s installed in contact with parts having special characteristics are marked s and must not exceed 0.5mA. The solder used in both polarities. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1. G Be sure to solder/flux vapor! When soldering, do not inhale solder fumes or expose eyes to test for the...
... solder All of the P.C.B.s installed in contact with parts having special characteristics are marked s and must not exceed 0.5mA. The solder used in both polarities. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1. G Be sure to solder/flux vapor! When soldering, do not inhale solder fumes or expose eyes to test for the...
Service Manual
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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 12 k-ohms Frequency Response YST-FSW150 30 Hz to 160 Hz [YST-FSW050 35 Hz...
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 12 k-ohms Frequency Response YST-FSW150 30 Hz to 160 Hz [YST-FSW050 35 Hz...
Service Manual
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...; 44 44 44 44 44 Dowel μϘ Bottom grille ass'y 44: Dowel μϘ Dowel μϘ Flatblade screwdriver Metalblade ϔϥ 8 Fig. 1 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 (with dowels at...
...; 44 44 44 44 44 Dowel μϘ Bottom grille ass'y 44: Dowel μϘ Dowel μϘ Flatblade screwdriver Metalblade ϔϥ 8 Fig. 1 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 (with dowels at...
Service Manual
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...; ˞ औΓ֎͢3 D 44 JHʣ E 44 ʢ'JHʣ Leg 2 Ϩοά 3 2 Leg Ϩοά 3 Fig. 3 Bottom panel ass'y 44: 9 c. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 d. Removal of the Driver. (Fig. 2) E 1 JHʣ F JHʣ 1 Driver $POOFDUPS ίωΫλʔ Fig. 2 2. Remove 12 screws (3). (Fig. 3) * Screws (3) are...
...; ˞ औΓ֎͢3 D 44 JHʣ E 44 ʢ'JHʣ Leg 2 Ϩοά 3 2 Leg Ϩοά 3 Fig. 3 Bottom panel ass'y 44: 9 c. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 d. Removal of the Driver. (Fig. 2) E 1 JHʣ F JHʣ 1 Driver $POOFDUPS ίωΫλʔ Fig. 2 2. Remove 12 screws (3). (Fig. 3) * Screws (3) are...
Service Manual
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... bushing, once removed, cannot be reused. When installing the front panel ass'y, apply quick-drying bond 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 ...ϒογϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ YST-FSW050 Flatblade screwdriver Front panel ass'y 44: Bushing ϒογϡ Dowel μϘ Dowel μϘ ...the like to the front panel ass'y. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 3. b.
... bushing, once removed, cannot be reused. When installing the front panel ass'y, apply quick-drying bond 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 ...ϒογϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ YST-FSW050 Flatblade screwdriver Front panel ass'y 44: Bushing ϒογϡ Dowel μϘ Dowel μϘ ...the like to the front panel ass'y. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 3. b.
Service Manual
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... JHʣ Rear panel ass'y ϦΞύωϧ"44: Rubber sheet and cloth Fig. 6 Bottom panel ass'y 44: Front panel ass'y 44: 11 YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 4. Remove the rear panel ass'y. (Fig. 5) c. Remove 2 bushings. (Fig. 5) * Used bushing, once removed, cannot be reused. bly back to use a new bushing in...
... JHʣ Rear panel ass'y ϦΞύωϧ"44: Rubber sheet and cloth Fig. 6 Bottom panel ass'y 44: Front panel ass'y 44: 11 YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 4. Remove the rear panel ass'y. (Fig. 5) c. Remove 2 bushings. (Fig. 5) * Used bushing, once removed, cannot be reused. bly back to use a new bushing in...
Service Manual
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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 IC6A 3+ 1 - L.P.F. 12dB/oct IC6B 5+ 7 - 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 IC6A 3+ 1 - L.P.F. 12dB/oct IC6B 5+ 7 - 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-
Service Manual
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... G2 Q13 H1 D19 H3 Q14 I1 D20 F2 CB4 SP- 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 .
... G2 Q13 H1 D19 H3 Q14 I1 D20 F2 CB4 SP- 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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... B6 Q11 C6 D18 H2 Q12 C7 D19 I3 Q13 H1 D20 F2 Q14 I1 IC1 C3 CB4 SP- 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...
... B6 Q11 C6 D18 H2 Q12 C7 D19 I3 Q13 H1 D20 F2 Q14 I1 IC1 C3 CB4 SP- 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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... PACK VR : ROTARY POTENTIOMETER VR.MTR : POTENTIOMETER WITH MOTOR VR.SW : POTENTIOMETER WITH ROTARY SW VR.SLIDE : SLIDE POTENTIOMETER VR.TRIM : TRIMMER POTENTIOMETER 17 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...
... PACK VR : ROTARY POTENTIOMETER VR.MTR : POTENTIOMETER WITH MOTOR VR.SW : POTENTIOMETER WITH ROTARY SW VR.SLIDE : SLIDE POTENTIOMETER VR.TRIM : TRIMMER POTENTIOMETER 17 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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A B C D E YST-FSW150/YST-FSW050 1 • OVERALL ASS'Y YST-FSW150 *1 Used bushing, once removed, cannot be reused. placement parts. To replace packing B, C and D, use packing A and cut it to use a new bushing in place of ...
A B C D E YST-FSW150/YST-FSW050 1 • OVERALL ASS'Y YST-FSW150 *1 Used bushing, once removed, cannot be reused. placement parts. To replace packing B, C and D, use packing A and cut it to use a new bushing in place of ...