Service Manual
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...or redistributed either in personal injury, destruction of expensive components, and failure of authorized YAMAHA Retailers and their service personnel. WARNING: Failure to follow appropriate service and safety procedures when servicing this...YAMAHA and may not be performed by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this product may have therefore not been restated. WARNING: Static discharges can destroy expensive components. YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050...
...or redistributed either in personal injury, destruction of expensive components, and failure of authorized YAMAHA Retailers and their service personnel. WARNING: Failure to follow appropriate service and safety procedures when servicing this...YAMAHA and may not be performed by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this product may have therefore not been restated. WARNING: Static discharges can destroy expensive components. YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050...
Service Manual
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YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1. For C model CAUTION F1: REPLACE WITH SAME TYPE 1.6A, 125V FUSE. In addition, other electrical/electronic and/or plastic (where applicable) components ...
YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1. For C model CAUTION F1: REPLACE WITH SAME TYPE 1.6A, 125V FUSE. In addition, other electrical/electronic and/or plastic (where applicable) components ...
Service Manual
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... Tech- 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 to 160...
... Tech- 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 to 160...
Service Manual
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... ass'y with dowels at 4 dowel positions and push up . * The bottom grille ass'y is fixed to the cabinet ass'y. First, insert a flatblade screwdriver at 4 locations. 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 .) B 44 44 44 C 44...
... ass'y with dowels at 4 dowel positions and push up . * The bottom grille ass'y is fixed to the cabinet ass'y. First, insert a flatblade screwdriver at 4 locations. 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 .) B 44 44 44 C 44...
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. Pull out the bottom panel ass'y. (Fig. 3) d. 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. Pull out the bottom panel ass'y. (Fig. 3) d. MAIN (2) P.C.B.
Service Manual
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... ass'y upward until it comes 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 ϒ... 44: Bushing ϒογϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ Front panel ass'y 44: 10 Fig. 4 YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 3. First, insert a flatblade screwdriver at 2 dowel positions and push up the front panel ass'y. (Fig. 4) c. Be sure to the front panel ...
... ass'y upward until it comes 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 ϒ... 44: Bushing ϒογϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ Front panel ass'y 44: 10 Fig. 4 YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 3. First, insert a flatblade screwdriver at 2 dowel positions and push up the front panel ass'y. (Fig. 4) c. Be sure to the front panel ...
Service Manual
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.... Remove 8 screws (4). (Fig. 5) * Screws (4) are identified with arrow marks ( ). Remove the rear panel ass'y. (Fig. 5) c. b. Remove 2 bushings. (Fig. 5) * Used bushing, once removed, cannot be reused. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 4. bly back to use a new bushing in place of rear panel ass'y a. d. Remove 4 screws (5) and then remove the rear cover. (Fig. 5) 44:ͷ֎͠...
.... Remove 8 screws (4). (Fig. 5) * Screws (4) are identified with arrow marks ( ). Remove the rear panel ass'y. (Fig. 5) c. b. Remove 2 bushings. (Fig. 5) * Used bushing, once removed, cannot be reused. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 4. bly back to use a new bushing in place of rear panel ass'y a. d. Remove 4 screws (5) and then remove the rear cover. (Fig. 5) 44:ͷ֎͠...
Service Manual
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IC6A 3+ 1 - 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 - 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-
IC6A 3+ 1 - 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 - 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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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 W10A1 W9 W8 MAIN (2) P.C.B. (Side A) 4 U, C, R, T, A, L, J models K, B, G models...
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 W10A1 W9 W8 MAIN (2) P.C.B. (Side A) 4 U, C, R, T, A, L, J models K, B, G models...
Service Manual
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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. IC3 0 0.2 0.2 -42.1 +14.8 +1.8 +1.2 -1.1 -42.6 +42.4 0 0 OUT1 +IN1 -IN1 -Vcc +IN2 -IN2 OUT2 +Vcc 2 +42.4 +42.4 +42.4 -11.2 0 0 3 INPUT JK1 SYSTEM CONNECTOR 4 L.P.F. +14.8 0 ...
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. IC3 0 0.2 0.2 -42.1 +14.8 +1.8 +1.2 -1.1 -42.6 +42.4 0 0 OUT1 +IN1 -IN1 -Vcc +IN2 -IN2 OUT2 +Vcc 2 +42.4 +42.4 +42.4 -11.2 0 0 3 INPUT JK1 SYSTEM CONNECTOR 4 L.P.F. +14.8 0 ...
Service Manual
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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 (6) CB12 CB11 ...
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 (6) CB12 CB11 ...
Service Manual
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...-ENDTUNER 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 those...
...-ENDTUNER 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 those...
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. Be sure to each length of the removed used bushing 201 204 x 2 4-6 23 4-20 4-11 4-5 Packing C 202 4-20 ...
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 C 202 4-20 ...
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 23 4-6 4-...
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 23 4-6 4-...