Service Manual
Page 1
...agent relationship of authorized YAMAHA Retailers and their service personnel. IMPORTANT: Turn the unit OFF during disassembly and part replacement. P.O.Box 1, Hamamatsu, Japan '07.08 YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050 IMPORTANT NOTICE This...rights reserved. WARNING: Failure to follow appropriate service and safety procedures when servicing this buss). Recheck all YAMAHA product owners that basic service procedures inherent to exist, please contact the distributor's Service Division. For these...
...agent relationship of authorized YAMAHA Retailers and their service personnel. IMPORTANT: Turn the unit OFF during disassembly and part replacement. P.O.Box 1, Hamamatsu, Japan '07.08 YST-FSW150/ YST-FSW050 SUBWOOFER SYSTEM YST-FSW150/YST-FSW050 SERVICE MANUAL • YST-FSW150 • YST-FSW050 IMPORTANT NOTICE This...rights reserved. WARNING: Failure to follow appropriate service and safety procedures when servicing this buss). Recheck all YAMAHA product owners that basic service procedures inherent to exist, please contact the distributor's Service Division. For these...
Service Manual
Page 2
... the AC plug in contact with solder or components located inside the enclosure of this unit and solder joints are properly insulated from supply circuits. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1.
... the AC plug in contact with solder or components located inside the enclosure of this unit and solder joints are properly insulated from supply circuits. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I TO SERVICE PERSONNEL 1.
Service Manual
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... G .......... Chinese model K .......... 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...
... G .......... Chinese model K .......... 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...
Service Manual
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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 to the cabinet ...
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 to the cabinet ...
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 MAIN (2) P.C.B. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 d. Remove 2 screws (2) and then remove 2 legs. (Fig. 3) b. Remove CB1-5 and then remove the bottom panel ass'y. (Fig. 3) MAIN (1) P.C.B. Remove 12 screws (3). (Fig. 3) * Screws...
...; 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 MAIN (2) P.C.B. YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 d. Remove 2 screws (2) and then remove 2 legs. (Fig. 3) b. Remove CB1-5 and then remove the bottom panel ass'y. (Fig. 3) MAIN (1) P.C.B. Remove 12 screws (3). (Fig. 3) * Screws...
Service Manual
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... not to cause damage to the front panel ass'y. a. 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 ϒογ...;ϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ YST-FSW050 Flatblade screwdriver Front panel ass'y 44: Bushing ϒογϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ Front panel...
... not to cause damage to the front panel ass'y. a. 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 ϒογ...;ϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ YST-FSW050 Flatblade screwdriver Front panel ass'y 44: Bushing ϒογϡ Dowel μϘ Dowel μϘ Metalblade ϔϥ Front panel...
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. d. Remove the rear panel ass'y. (Fig. 5) c. Remove 4 screws (5) and then remove the rear cover. (Fig. 5) 44:ͷ֎͠ํ B 4 JHʣ ˞...
... 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. d. Remove the rear panel ass'y. (Fig. 5) c. Remove 4 screws (5) and then remove the rear cover. (Fig. 5) 44:ͷ֎͠ํ B 4 JHʣ ˞...
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 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 - 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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... 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 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 . Location Ref no . DRIVER SP+ WOOFER C56 G3 B, G models W10B1 W10B2 W10B3 W10B1 W10B2 W10B3 13
... 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 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 . Location Ref no . DRIVER SP+ WOOFER C56 G3 B, G models W10B1 W10B2 W10B3 W10B1 W10B2 W10B3 13
Service Manual
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DRIVER SP+ WOOFER C56 K, B, G models G3 W10B3 W10B2 W10B1 W10B3 W10B2 W10B1 Location Ref no . 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...
DRIVER SP+ WOOFER C56 K, B, G models G3 W10B3 W10B2 W10B1 W10B3 W10B2 W10B1 Location Ref no . 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...
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. +...
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. +...
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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... 4-5 Packing C 202 4-20 Packing D 205 2 4-15 203 4-13 8-1 (3) 3-12 203-2 3-1 3 3-4 3-3 3-7 3-8 4-14 *1 3-11 1 8-1 (4) Packing C 23 Packing D 204 203 4 *2 Packing B, C and D are not available as specified below. A B C D E YST-FSW150/YST-FSW050 1 • OVERALL ASS'Y YST-FSW150 *1 Used bushing, once removed, cannot be reused.
... 4-5 Packing C 202 4-20 Packing D 205 2 4-15 203 4-13 8-1 (3) 3-12 203-2 3-1 3 3-4 3-3 3-7 3-8 4-14 *1 3-11 1 8-1 (4) Packing C 23 Packing D 204 203 4 *2 Packing B, C and D are not available as specified below. A B C D E YST-FSW150/YST-FSW050 1 • OVERALL ASS'Y YST-FSW150 *1 Used bushing, once removed, cannot be reused.