Yamaha YST-SW205 Service Manual

Hide thumbs Also See for YST-SW205:

Owner's manual (19 pages)

Owner's manual (100 pages)

SUBWOOFER SYSTEM

SERVICE MANUAL

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:

IMPORTANT:

Q Q

6 7

1 3

1 5

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, inevitable 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:

IMPORTANT:

ADJUSTMENTS .............................................................. 7~8

BLOCK DIAGRAM ......................................................... 9

PRINTED CIRCUIT BOARD .................................. 10~15

SCHEMATIC DIAGRAM ........................................ 16~17

PARTS LIST ........................................................... 18~31

9 4

2 8

IMPORTANT NOTICE

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.

The presentation or sale of this manual to any

individual or firm does not constitute authorization,

0 5

2 9

9 4

2 8

certification or recognition of any applicable

technical capabilities, or establish a principle-agent

relationship of any form.

S t a t i c d i s c h a r g e s c a n d e s t r o y e x p e n s i v e

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).

Turn the unit OFF during disassembly and part

replacement. Recheck all work before you apply

power to the unit.

P.O.Box 1, Hamamatsu, Japan

9 9

Table of Contents

Summary of Contents for Yamaha YST-SW205

Page 1: Table Of Contents
YST-SW205/305 SERVICE MANUAL IMPORTANT NOTICE 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.
Page 2: To Service Personnel
YST-SW205/305 3 7 63 1515 0 I TO SERVICE PERSONNEL 1. Critical Components Information AC LEAKAGE Components having special characteristics are marked s WALL EQUIPMENT TESTER OR and must be replaced with parts having specifications equal OUTLET UNDER TEST EQUIVALENT to those originally installed.
Page 3: Specifications
✻ Specifications are subject to change without notice due to product improvements. YST-SW205 YST-SW305 ← Type Advanced Yamaha Active Servo Technology 150 W/100 Hz, 5 Ω 10% T.H.D. 200 W/100 Hz, 5 Ω 10% T.H.D. Output Power Input Sensitivity INPUT 1 (SP) 0.8 V (50 Hz, 150 W/5Ω, L+R)
Page 4: Internal View
YST-SW205/305 3 7 63 1515 0 I INTERNAL VIEW YST-SW205 YST-SW305 L 13942296513 1 MAIN (5) P. C. B. 7 MAIN (1) P. C. B. 2 MAIN (4) P. C. B. 8 MAIN (2) P. C. B. 3 MAIN (10) P. C. B.
Page 5: Rear Panels
YST-SW205/305 3 7 63 1515 0 I REAR PANELS YST-SW205 U, C models A model B, G model 70 WATTS L 13942296513 R model T model u163 http://www.xiaoyu163.com...
Page 6 YST-SW205/305 3 7 63 1515 0 YST-SW305 U, C models A model B, G model 80WATTS 80WATTS L 13942296513 R model T model u163 http://www.xiaoyu163.com...
Page 7: Disassembly Procedures
YST-SW205/305 3 7 63 1515 0 I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) G For exchanging the driver unit 1. Removal of Front Grille The front grille is fixed to the cabinet with dowels at 6 locations.
Page 8: Adjustments
YST-SW205/305 3 7 63 1515 0 I ADJUSTMENTS G Confirmation of Power Amp operation G Idling Adjustment For the power amplifier which has been repaired, it is To stabilize operation of the amplifier, turn ON the power absolutely necessary to confirm that a correct waveform...
Page 9: Schematic Diagram
YST-SW205/305 3 7 63 1515 0 Schematic Diagram (Ex.: YST-SW205) -1.0 POWER DRIVE PS AMP -1.6 66.1 66.1 66.1 65.7 65.5 66.1 66.1 65.5 66.1 65.9 66.1 66.1 66.1 65.5 65.1 65.9 66.1 66.1 66.0 66.0 IDLING CURRENT ADJ.
Page 10: Block Diagram
YST-SW205/305 3 7 63 1515 0 I BLOCK DIAGRAM L 13942296513 u163 http://www.xiaoyu163.com...
Page 11: Printed Circuit Board
YST-SW205/305 YST-SW205 3 7 63 1515 0 I PRINTED CIUCUIT BOARD (Foil side) MAIN (1) P. C. B. From MAIN (6) From MAIN L 13942296513 From MAIN IDLING TEST POINT DC 30 mV to 200 mV From MAIN DR1+...
Page 12 YST-SW205/305 YST-SW305 3 7 63 1515 0 I PRINTED CIUCUIT BOARD (Foil side) MAIN (1) P. C. B. From MAIN (6) From MAIN L 13942296513 From MAIN IDLING TEST POINT DC 30 mV to 200 mV From MAIN DR1+...
Page 13 YST-SW205/305 YST-SW205 YST-SW305 3 7 63 1515 0 I PRINTED CIUCUIT BOARD (Foil side) From MAIN (6) MAIN (2) P. C. B. MAIN From MAIN L 13942296513 TR-C TR-B TR-E To MAIN (1) IDLING CURRENT ADJ. TOVL BASS MAIN...
Page 14 YST-SW205/305 YST-SW205 YST-SW305 3 7 63 1515 0 I PRINTED CIUCUIT BOARD (Foil side) To MAIN (10) MAIN (3) P. C. B. To MAIN (4) To MAIN (8) MAIN U, C, A, B, G models: To MAIN (7) R, T models:...
Page 15 YST-SW205/305 YST-SW205 YST-SW305 3 7 63 1515 0 I PRINTED CIUCUIT BOARD (Foil side) MAIN (5) P. C. B. VOLUME HIGH CUT B.A.S.S. STANDBY / ON From MAIN (2) MAIN (8) P. C. B. MAIN (6) P. C. B.
Page 16 YST-SW205/305 YST-SW205 YST-SW305 3 7 63 1515 0 I PRINTED CIUCUIT BOARD (Foil side) MAIN (7) P. C. B. (R, T models) MAIN (6) P. C. B. MAIN POWER TRANSFORMER MAIN From From MAIN MAIN L 13942296513 MAIN (9) P. C. B.
Page 17 YST-SW205/SW305 SCHEMATIC DIAGRAM (YST-SW205) IC1, 4, 7~9 : µPC4570HA 3 7 6 3 1 5 1 5 0 Dual OP-Amp B.P.F. L.P.F. -1.0 POWER DRIVE PS AMP -11.9 INPUT 1 PRE DRIVE -1.6 11.8 11.8 66.1 66.1 66.1 66.1 65.7...
Page 18 YST-SW205/305 SCHEMATIC DIAGRAM (YST-SW305) 3 7 6 3 1 5 1 5 0 IC1, 4, 7~9 : µPC4570HA Dual OP-Amp B.P.F. L.P.F. POWER DRIVE PS AMP -12.0 -1.7 PRE DRIVE 11.9 11.9 69.4 69.4 69.4 69.4 69.3 68.7 69.4 69.5...
Page 19: Parts List
YST-SW205/305 I WARNING PARTS LIST Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally in- 3 7 63 1515 0 stalled. I ELECTRICAL PARTS Carbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL PARTS List.
Page 20 YST-SW205/305 3 7 63 1515 0 YST-SW205 Schm Schm Ref. PART NO. Description Markets Ref. PART NO. Description Markets V7098000 P.C.B. MAIN UR778470 C.EL 470uF V7098100 P.C.B. MAIN VS741700 C.CE.SAFTY 0.01uF 275V V7098200 P.C.B. MAIN FG644100 C.CE 0.01uF V7098300 P.C.B.
Page 21 YST-SW205/305 3 7 63 1515 0 YST-SW205 Schm Schm Ref. PART NO. Description Markets Ref. PART NO. Description Markets VG436400 DIODE.ZENR MTZJ3.6B 3.6V Q26C iX632620 2SC4793 O,Y VU264100 DIODE 1SR139-400 VE198800 2SC2705 O,Y VG436400 DIODE.ZENR MTZJ3.6B 3.6V VE198800 2SC2705 O,Y...
Page 22: Ao Y U163
YST-SW205/305 3 7 63 1515 0 YST-SW205 Schm Schm Ref. PART NO. Description Markets Ref. PART NO. Description Markets s RY2 V2712300 RELAY DC SDT-S-112LMR s RY2 VU349800 RELAY DC SDT-SS-112DM UCABG V4040500 SCR.TERM VS066500 SW.PUSH SPPH13-W VL012000 SW.SLIDE...
Page 23 YST-SW205/305 3 7 63 1515 0 YST-SW305 Schm Schm Ref. PART NO. Description Markets Ref. PART NO. Description Markets V7097500 P.C.B. MAIN UR838220 C.EL 220uF V7097600 P.C.B. MAIN UR778470 C.EL 470uF V7097700 P.C.B. MAIN VS741700 C.CE.SAFTY 0.01uF 275V V7097800 P.C.B.
Page 24 YST-SW205/305 3 7 63 1515 0 YST-SW305 Schm Schm Ref. PART NO. Description Markets Ref. PART NO. Description Markets VD631600 DIODE 1SS133,176 Q24C iX632620 TR.PAIR 2SC4793 O,Y VG436400 DIODE.ZENR MTZJ3.6B 3.6V V3028000 2SK304 E VU264100 DIODE 1SR139-400 Q26A iX632610 TR.PAIR...
Page 25 YST-SW205/305 3 7 63 1515 0 YST-SW305 Schm Schm Ref. PART NO. Description Markets Ref. PART NO. Description Markets R153 HV756220 R.CAR.FP 2.2KΩ 1/4W R154 HV756220 R.CAR.FP 2.2KΩ 1/4W s RY1 VU161600 RELAY DC OSA-SS-224DM3 s RY2 V2712300 RELAY...
Page 26 YST-SW205/305 YST-SW205 3 7 63 1515 0 I EXPLODED VIEW 5-37 5-21 5-1-4 R,T version 5-11 5-35 5-38 5-14 5-31 5-1-1 (7) 5-32 5-33 5-32 (10) 5-1-1 5-34 5-31 5-1-12 5-1-1 5-1-8 5-16 5-1-13 5-32 5-17 5-18 5-38 5-1-1 (3)
Page 27 YST-SW205/305 YST-SW205 3 7 63 1515 0 MECHANICAL PARTS Ref. PART NO. Description Remarks Markets V7317500 CABINET ASS'Y V7317600 CABINET ASS'Y XZ951A00 LOUD SPEAKER JA2165 20cm 6Ω V7317900 FRONT GRILLE ASS'Y V7318000 FRONT GRILLE ASS'Y V2192200 EMBLEM YAMAHA VP161000 PUSH NUT SPN1.5...
Page 28 YST-SW205/305 3 7 63 1515 0 YST-SW205 Ref. PART NO. Description Remarks Markets 5-31 EP600140 BIND HEAD B-TITE SCREW 3x10 MFZN2-BL 5-32 EG340190 BIND HEAD B-TITE SCREW MFZN2-BL 5-33 EP630660 BIND HEAD P-TITE SCREW 3x10 MFZN2-BL 5-34 VT669300 PW HEAD B-TITE SCREW...
Page 29 YST-SW205/305 YST-SW305 3 7 63 1515 0 I EXPLODED VIEW 5-21 5-37 5-1-4 5-11 R,T version 5-38 5-35 5-14 5-31 5-1-1 (7) 5-32 5-33 5-32 (10) 5-1-1 5-34 5-31 5-1-12 5-1-1 5-1-8 5-16 5-1-13 5-32 5-17 5-18 5-38 5-1-1 (3)
Page 30 YST-SW205/305 YST-SW305 3 7 63 1515 0 I MECHANICAL PARTS Ref. PART NO. Description Remarks Markets V7317300 CABINET ASS'Y V7317400 CABINET ASS'Y XZ962A00 LOUD SPEAKER JA2167 20cm 12Ω V7317700 FRONT GRILLE ASS'Y V7317800 FRONT GRILLE ASS'Y V2192200 EMBLEM YAMAHA...
Page 31 YST-SW205/305 3 7 63 1515 0 YST-SW305 Ref. PART NO. Description Remarks Markets 5-31 EP600140 BIND HEAD B-TITE SCREW 3x10 MFZN2-BL 5-32 EG340190 BIND HEAD B-TITE SCREW MFZN2-BL 5-33 EP630660 BIND HEAD P-TITE SCREW 3x10 MFZN2-BL 5-34 VT669300 PW HEAD B-TITE SCREW...
Page 32 YST-SW205/305 3 7 63 1515 0 Parts List for Carbon Resistors Value 1/4W Type Part No. 1/6W Type Part No. Value 1/4W Type Part No. 1/6W Type Part No. 1.0 Ω 3100 3100 10 kΩ 7100 7100 HJ35 HF85...

This manual is also suitable for:

Yst-sw305

Yamaha YST-SW205 Service Manual

Table of Contents

SUBWOOFER SYSTEM

Related Manuals for Yamaha YST-SW205

Summary of Contents for Yamaha YST-SW205

This manual is also suitable for:

Table of Contents