YST-SW005 SERVICE MANUAL SUBWOOFER SYSTEM YST-SW005 100799 ■ CONTENTS TO SERVICE PERSONNEL .......................................... 1 SPECIFICATIONS / 参考仕様 ........................................ 1 INTERNAL VIEW / 各部の名称 ...................................... 2 BLOCK DIAGRAM / ブロックダイアグラム ................. 2 REAR PANELS / リアパネル ......................................... 3 DISASSEMBLY PROCEDURES / 分解手順 ................. 4 CONFIRMATION OF AUTO STANDBY OPERATION / AUTO STANDBY動作確認 ...................... 5 PRINTED CIRCUIT BOARD / シート図 .................... 6~7 SCHEMATIC DIAGRAM / 総回路図 .............................. 8 PARTS LIST / 部品表 ............................................... 9~15 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. WARNING: 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. IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. 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: Static discharges can destroy expensive 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). IMPORTANT: 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
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DISASSEMBLY PROCEDURES / 分解手順 ................. 4CONFIRMATION OF AUTO STANDBYOPERATION / AUTO STANDBY動作確認...................... 5PRINTED CIRCUIT BOARD / シート図 .................... 6~7SCHEMATIC DIAGRAM / 総回路図 .............................. 8PARTS LIST / 部品表 ............................................... 9~15
IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHARetailers and their service personnel.It has been assumed that basic service procedures inherent to the industry,and more specifically YAMAHA Products, are already known andunderstood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safetyprocedures when servicing this product may result inpersonal injury, destruction of expensive components,and failure of the product to perform as specified. Forthese reasons, we advise all YAMAHA product ownersthat any service required should be performed by anauthorized YAMAHA Retailer or the appointed servicerepresentative.
IMPORTANT: The presentation or sale of this manual to any individualor firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, orestablish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s)indicated on the cover. The research, engineering, and service departmentsof YAMAHA are continually striving to improve YAMAHA products.Modifications are, therefore, inevitable and specifications are subject tochange without notice or obligation to retrofit. Should any discrepancyappear to exist, please contact the distributor's Service Division.
WARNING: Static discharges can destroy expensive components.Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground buss inthe unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and partreplacement. Recheck all work before you apply powerto the unit.
P.O.Box 1, Hamamatsu, Japan
YST-SW005Y
ST
-SW
005
1
WALLOUTLET
EQUIPMENTUNDER TEST
AC LEAKAGETESTER OR
EQUIVALENT
INSULATINGTABLE
WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food.
TO SERVICE PERSONNEL1. Critical Components Information
Components having special characteristics are marked sand must be replaced with parts having specifications equalto those originally installed.
2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.
Meter impedance should be equivalent to 1500 ohm shuntedby 0.15µF.
Leakage current must not exceed 0.5mA.
Be sure to test for leakage with the AC plug in both polarities.
SPECIFICATIONS / 参考仕様Type .......... Advanced Yamaha Active Servo Technology型式 ......アドバンスド ヤマハ アクティブ サーボ テクノロジーOutput Power / 出力
J, U, C models ............ 55 W/100 Hz, 5 Ω 10% T.H.D.R, T, K, A, B models ... 50 W/100 Hz, 5 Ω 10% T.H.D.
Power Supply / 電源J model ........................................... AC100V, 50/60HzU, C models ........................................ AC120V, 60HzR, T, K models .......... AC110/120/220/240V, 50/60HzA model ............................................... AC240V, 50HzB, G models ........................................ AC230V, 50Hz
Power Consumption / 消費電力U, C, R, T, K, A, B, G models ............................. 60 WJ model ................................................................ 32 W
Standby Power Consumption / 待機消費電力 ..... 0.8 WDimensions / 寸法 (W x H x D) ..... 200 x 365 x 375 mm
(7-7/8" x 14-3/8" x 14-3/4")Weight / 重量 ................................ 8.5 kg (18 lbs. 12 oz.)Finish / 仕上げ
Black color / Cherry color ......................... All modelsSilver color .............................................. U, C models
Accessory / 付属品U, C, R, T, K, A, B, G models ........... Nonskid Pad x 4J model ..........................スピーカーケーブル(4m)×2、サブウーファー用ピンケーブル(3m)×1、滑止パッド×4
U ........ U.S.A. model C .... Canadian modelA ........ Australian model B .... British modelG ........ European model R .... General modelT ........ Chinese model K .... Korean modelJ ......... Japanese model
Specifications are subject to change without notice dueto product improvements.
※ 仕様および外観は、改良のため予告なく変更することがあります。
YST-SW005Y
ST
-SW
005
1 2 3 4
5 6 87
LIMITER
IC3
REGULATOR
POWER SUPPLYD1
SUBPOWER SUPPLY
D11
Q11
T1
T2
D15
D17
Q15
D9
+15
+B
-15
-B
Q9
Q10
RY2F1
PROTECTION
0.1
SPEAKER
RY1
D6
2
IC2
13
2
IC7BIC7A
L.P.F12dB/oct
75
6
VR1VOLUME
L.P.F6dB/oct
76
5
IC1BIC1A
12
3
MUSICSENSOR
IC4
TIMERIC5
+
84
67
3
AUTOSTANDBYSW2
OFF
AUTO POWER ON/OFF CIRCUIT
Q5, 6, 7, 8D4,D5,D22,D23
+
- +-
+-
-+
-+
-
+
+
-
-
+
L
R
L
R
L
R
INPUT 1
OUTPUT
INPUT 2
Q12
R60
C46
POWERAMP
4
H.P.F12dB/oct
H
LIC9
REGULATORQ13, 14
D16
R, T ONLYREGULATOR
POWERSW3
A.N.I.C
IC10, Q16
L.P.F6dB/oct
1
10
SW1HIGH
LOW
200 (7-7/8")
Unit : mm (inch)
365
(14-
3/8"
)
375 (14-3/4")
335 (13-3/16") 8 (5/16")32
(1-1/4")
INTERNAL VIEW / 各部の名称
2
1 MAIN P. C. B. (3)2 MAIN P. C. B. (2)3 MAIN P. C. B. (1)4 MAIN P. C. B. (6)
• DIMENSIONS / 寸法図
5 MAIN P. C. B. (4)6 MAIN P. C. B. (5)7 Power Transformer8 Driver
BLOCK DIAGRAM / ブロックダイアグラム
YST-SW005Y
ST
-SW
005
0 10
HIGH CUT
INPUT2
INPUT1FROM AMPLIFIER
OUTPUT
ON
MODEL NO. YST-SW005
MADE IN CHINA
SER. NO.
230 VOLTS 60 WATTS50Hz
OFF
TO SPEAKERS
/MONO
AUTOSTANDBY
VOLUME
HIGH
LOWHIGHLOWOFF
R L
R L
+ +
– –
R L
– –
+ +
POWER
0 10
HIGH CUT
INPUT2
INPUT1FROM AMPLIFIER
OUTPUT
ON
MODEL NO. YST-SW005
MADE IN CHINA
SER. NO.
240 VOLTS 60 WATTS50Hz
OFF
TO SPEAKERS
/MONO
AUTOSTANDBY
VOLUME
HIGH
LOWHIGHLOWOFF
R L
R L
+ +
– –
R L
– –
+ +
POWER
N89
0 10
HIGH CUT
INPUT2
INPUT1FROM AMPLIFIER
OUTPUT
VOLTAGESELECTOR220V-240V
110V-120V
ON
MODEL NO. YST-SW005
SER. NO.
110 - 120/220 - 240 VOLTS 60 WATTS 50/60Hz OFF
TO SPEAKERS
/MONO
AUTOSTANDBY
VOLUME
HIGH
LOWHIGHLOWOFF
R L
R L
+ +
– –
R L
– –
+ +
POWER
R model
0 10
HIGH CUT
INPUT2
INPUT1FROM AMPLIFIER
OUTPUT
ON
MODEL NO. YST-SW005
MADE IN CHINA
SER. NO.
120 VOLTS 60 WATTS60Hz
OFF
TO SPEAKERS
/MONO
AUTOSTANDBY
VOLUME
HIGH
LOWHIGHLOWOFF
R L
R L
+ +
– –
R L
– –
+ +
POWER
ATTENTION :RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR.
WARNING :TO REDUCE THE RISK OF FIREOR ELECTRIC SHOCK. DO NOT EXPOSETHIS APPLIANCE TO RAIN OR MOISTURE.
C US
®
0 10
ハイカット
入力 2
入力 1(アンプより)
出力
入MODEL NO. YST-SW005
MADE IN CHINA
SER. NO.
100 V 32 W 50/60Hz 切
(スピーカーへ)
左/モノ右
右 左
右 左
オートスタンバイ感度
ボリューム
高低高
低切
R L
R L
+ +
– –
– –
+ +
主電源
PSE
3
REAR PANELS / リアパネルU, C models
B, G models
R, T, K models
A model
J model
YST-SW005Y
ST
-SW
005
3
CB5
Fig. 3
1
22
2
2
1
1
1
Fig. 2Fig. 1
4
DISASSEMBLY PROCEDURES / 分解手順 (Remove parts in the order as numbered.)
For exchanging the driver unit1. Removal of Front Grille
The front grille is fixed to the cabinet with dowels at 6locations.As a screwdriver (for slotted head screw) is used forremoval, use special care not to cause damage to thecabinet.
a. Apply the block to the rear panel so as to avoid damageto the Terminal of the rear panel.
b. Use the screwdriver inserted in the gap between thefront grille and the cabinet (bottom side first), push upthe front grille. (Fig. 1)
c. Remove the front grille by lifting it up. (Fig. 1)
2. Removal of Driver unit and Replacement of LEDa. Remove 4 screws (1) in Fig. 2, and remove the Driver
unit.b. Disconnect the cord connected to the Driver unit.c. Remove 4 screws (2) and pull out the port section
Precaution for installation of power cordAfter connecting the power cord, be sure to apply therapid cures bond (such as 5 minutes epoxy) at the cordstopper to prevent the air leakage as shown in Fig. 4.
s SW3 AAX31140 SW 354986 パワースィッチ 05* s SW4 AAX32040 SW ESD26606A 336446 RTK スライドSW* s T1 AAX33360 TRANS 356190 J 電源トランス* s T1 AAX33370 TRANS 356191 UC 電源トランス* s T1 AAX33380 TRANS 356192 RTK 電源トランス* s T1 AAX33390 TRANS 356193 ABG 電源トランス
* 6 AAX31930 P.C.B. ASS'Y MAIN 356281 J PCBメイン* 6 AAX31960 P.C.B. ASS'Y MAIN 356425 UC PCBメイン* 6 AAX31940 P.C.B. ASS'Y MAIN 356282 RTK PCBメイン* 6 AAX31950 P.C.B. ASS'Y MAIN 356283 ABG PCBメイン* s 7 AAX32110 POWER TRANSFORMER 356184 J 電源トランス* s 7 AAX32120 POWER TRANSFORMER 356186 UC 電源トランス* s 7 AAX32130 POWER TRANSFORMER 356187 RTK 電源トランス* s 7 AAX32140 POWER TRANSFORMER 356188 A 電源トランス* s 7 AAX32150 POWER TRANSFORMER 356189 BG 電源トランス
s 8 V2723100 POWER CORD 2m J 電源コード 07s 8 V8366300 POWER CORD UC 電源コードs 8 VZ555600 POWER CORD 2m RT 電源コードs 8 V8012900 POWER CORD 2m K 電源コードs 8 V8366500 POWER CORD A 電源コードs 8 V8366600 POWER CORD B 電源コードs 8 V8366400 POWER CORD G 電源コード9 CB072750 CORD STOPPER SR-4N-4 コードストッパー 01
* 6 AAX31930 P.C.B. ASS'Y MAIN 356281 J PCBメイン* 6 AAX31960 P.C.B. ASS'Y MAIN 356425 UC PCBメイン* 6 AAX31940 P.C.B. ASS'Y MAIN 356282 RTK PCBメイン* 6 AAX31950 P.C.B. ASS'Y MAIN 356283 ABG PCBメイン* s 7 AAX32110 POWER TRANSFORMER 356184 J 電源トランス* s 7 AAX32120 POWER TRANSFORMER 356186 UC 電源トランス* s 7 AAX32130 POWER TRANSFORMER 356187 RTK 電源トランス* s 7 AAX32140 POWER TRANSFORMER 356188 A 電源トランス* s 7 AAX32150 POWER TRANSFORMER 356189 BG 電源トランス
s 8 V2723100 POWER CORD 2m J 電源コード 07s 8 V8366300 POWER CORD UC 電源コードs 8 VZ555600 POWER CORD 2m RT 電源コードs 8 V8012900 POWER CORD 2m K 電源コードs 8 V8366500 POWER CORD A 電源コードs 8 V8366600 POWER CORD B 電源コードs 8 V8366400 POWER CORD G 電源コード9 CB072750 CORD STOPPER SR-4N-4 コードストッパー 01