Yamaha Soavo-900SW User manual
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: 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.
IMPORTANT NOTICE
101027
SERVICE MANUAL
REPAIR PROCEDURES / 修理手順 .......................... 11–14
DC OFFSET ADJUSTMENT / DCオフセット調整 ...........
14–15
IC DATA ......................................................................16
BLOCK DIAGRAM......................................................17
PRINTED CIRCUIT BOARDS ..............................18–20
SCHEMATIC DIAGRAMS ....................................21–22
REPLACEMENT PARTS LIST.............................23–34
REMOTE CONTROL ..................................................35
■ CONTENTS
TO SERVICE PERSONNEL......................................... 2
FRONT PANEL .............................................................3
REAR PANELS.........................................................3–5
REMOTE CONTROL PANEL.......................................6
SPECIFICATIONS / 参考仕様 ................................................ 6
DIMENSIONS ................................................................7
INTERNAL VIEW ..........................................................7
DISASSEMBLY PROCEDURES / 分解手順..............8–10
Soavo-900SW
SUBWOOFER SYSTEM
© 2006 YAMAHA CORPORATION. All rights reserved.
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
’06.09
POWER
STANDBY
SLEEP
PHASE
MEMORY
PRESET
HIGH CUT VOLUME
231
B.A.S.S.
WH64300
Soavo-900SW
2
Soavo-900SW
Soavo-900SW
■TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked Z
and must be replaced with parts having specifications equal
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
●Meter impedance should be equivalent to 1500 ohms
shunted by 0.15µF.
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both
polarities.
AC LEAKAGE
TESTER OR
EQUIVALENT
EQUIPMENT
UNDER TEST
INSULATING
TABLE
WALL
OUTLET
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 REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes
or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands
before handling food.
“CAUTION”
“F1 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A, 125V FUSE.”
CAUTION
F1 : REPLACE WITH SAME TYPE 12A, 125V FUSE.
ATTENTION
F1 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A, 125V.
AV
About Lead Free Solder/無鉛ハンダについて
All of the P.C.B.s installed in this unit and solder joints
are soldered using the lead free solder.
Among some types of lead free solder currently available, it
is recommended to use one of the following types for the
repair work.
•Sn + Ag + Cu (tin + silver + copper)
•Sn + Cu (tin + copper)
•Sn + Zn + Bi (tin + zinc + bismuth)
Caution:
As the melting point temperature of the lead free solder is
about 30°C to 40°C (50°F to 70°F) higher than that of the
lead solder, be sure to use a soldering iron suitable to
each solder.
本機に搭載されているすべての基板およびハンダ付けに
よる接合部は無鉛ハンダでハンダ付けされています。
無鉛ハンダにはいくつかの種類がありますが、修理時には
下記のような無鉛ハンダの使用を推奨します。
・Sn+Ag+Cu（錫+ 銀+銅）
・Sn+Cu（錫+ 銅）
・Sn+Zn+Bi（錫+ 亜鉛+ビスマス）
注意：
無鉛ハンダの融点温度は通常の鉛入りハンダに比べ30〜
40℃程度高くなっていますので、それぞれのハンダに
合ったハンダごてをご使用ください。
3
Soavo-900SW
Soavo-900SW
■FRONT PANEL
■REAR PANELS
▼U, C models
4
Soavo-900SW
Soavo-900SW
▼R model ▼T model
▼K model ▼A model
5
Soavo-900SW
Soavo-900SW
▼B, G models ▼L model
▼J model
6
Soavo-900SW
Soavo-900SW
■SPECIFICATIONS/参考仕様
■REMOTE CONTROL PANEL
POWER
STANDBY
SLEEP
PHASE
MEMORY
PRESET
HIGH CUT VOLUME
231
B.A.S.S.
WH64300
Type / AdvancedYamaha Active ServoTechnology
II
Output Power /
100 Hz, 4 ohms, 10 % T.H.D ............................. 600 W
Input Sensitivity / (50 Hz, 600 W/4 ohms, L+R)
INPUT (SP) .......................................................... 1.2 V
INPUT (PJ) ......................................................... 70 mV
Input Impedance /
INPUT (SP) .................................................2.2 k-ohms
INPUT (PJ) ...................................................12 k-ohms
Frequency Response / 18 Hz to 160 Hz
Driver / 25 cm (10”) cone woofer
Magnetic shielding type
Input Section /
INPUT 1............................................. Speaker terminal
INPUT 2, 3................................................ RCA pin jack
Operation Section /
Top Panel.......... STANDBY/ON switch,Volume control,
H-CUT control, LED indicator
Rear Panel...............................................Power switch,
Voltage selector (R, L models)
Power Supply /
U, C models.........................................AC 120V, 60 Hz
R, L models .... AC 110, 120, 220, 230-240 V, 50/60 Hz
T model ...............................................AC 220V, 50 Hz
K model ...............................................AC 220V, 60 Hz
A model ...............................................AC 240V, 50 Hz
B, G models.........................................AC 230 V, 50 Hz
J model...........................................AC 100V, 50/60 Hz
Power Consumption /
U, C, R, T, K, A, B, G, L models.......................... 180 W
J model............................................................... 120 W
Standby Power Consumption /
..................................................0.5 W (reference data)
Dimensions (W x H x D) /
.................................... 410 mm x 461 mm x 461.5 mm
(16-1/8”x 18-3/16”x 18-3/16”)
Weight / ...................................... 32 kg (70 lbs.9 oz.)
Finish / Birch color (MN)
Brown color (MB)
Dark brown color (MD)
Black color (BL)
Accessories / ............................... Power cable x1,
Remote control x1, Battery x2,
Speaker cable (4 m) x1 (J model),
Subwoofer cable (5 m) x1 (J model)
* Specifications subject to change without notice.
U ....... USA model
C ....... Canadian model
R ....... General model
T ....... Chinese model
K ....... Korean model
A ....... Australian model
B ....... British model
G ....... European model
L ....... Singapore model
J ....... Japanese model
7
Soavo-900SW
Soavo-900SW
■DIMENSIONS
Unit : mm (inch)
410 (16-1/8")
461 (18-3/16")
457 (18")
410 (16-1/8")
4
(3/16")
30
(1-3/16") 21.5
(7/8")
461.5 (18-3/16")
■INTERNAL VIEW
qDRIVER
wMAIN (4) P.C.B.
eMAIN (3) P.C.B.
eq wrty
uio !0
rDIGITAL P.C.B.
tMAIN (2) P.C.B.
yMAIN (1) P.C.B.
uMAIN (7) P.C.B.(R, L models)
iPOWER TRANSFORMER
oMAIN (6) P.C.B.
!0 MAIN (5) P.C.B.
8
Soavo-900SW
Soavo-900SW
■DISASSEMBLY PROCEDURES/分解手順
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
1. Removal of Front Grille Ass'y
* The front grille ass'y is fixed to the cabinet with dowels
at 5 locations.
As a flatblade screwdriver is used for removal, use
special care not to cause damage to the cabinet ass'y.
a. Using the flatblade screwdriver inserted in the gap
between the front grille ass'y and the cabinet ass'y
(bottom side first), push up the front grille ass'y.
(Fig. 1)
b. Remove the front grille ass'y by lifting a metalblade
up. (Fig. 1)
* When installing the front grille ass'y, apply quick-drying
bond or the like to dowels and then fit them into dowel
holes for secure installation. (The front grille ass'y will
come off easily if its dowels are fitted into dowel holes
without applying quickdrying bond or the like.)
1.フロントグリルASS'Y の外し方
a. 底側からマイナスドライバー等を差し込みフロントグリ
ルASS'Y を押し上げます。(Fig.1)
b. 徐々にへら等で押し上げて、フロントグリルASS'Yを取
り外します。(Fig.1)
Fig. 1
Front Grille Ass'y
Driver
q
Flatblade Screwdriver
Dowels
Metalblade
Dowels
Cabinet Ass'y
9
Soavo-900SW
Soavo-900SW
2. スピーカーユニットの外し方
a. qのネジ８本を外し、スピーカーユニットを取り外し
ます。(Fig.1)
b.スピーカーユニットの端子からコネクターを外します。
(Fig.1)
3. リアパネル ASS'Yの外し方
a. wのネジ12本を外し、リアパネルASS'Yを取り外しま
す。(Fig.2)
b. CB4,CB5,CB15-17,CB20,CB22 を外します。(Fig.3)
2. Removal of Driver
a. Remove 8 screws (q) and then remove the driver.
(Fig. 1)
* Use an allen wrench (4mm) to unscrew the driver.
b. Disconnect the connector connected to the terminal of
the driver. (Fig. 1)
3. Remove of Rear Panel Ass’y
a. Remove 12 screws (w) and then remove the rea
panel ass’y. (Fig. 2)
* Arrow marks ( ) are printed to identify the screws to
be removed.
* When assembling the rear panel ass’y, check to ensure
that packing is not damaged so as to prevent air leakage
from occurring.
b. Remove CB4, CB5, CB15 (U, C, T, K, A, B, G
models), CB16-17, CB20 and CB22. (Fig. 3)
c. Remove CB13 and CB14. (R, L models) (Fig. 3)
Fig. 2
Fig. 3
w
Rear Panel Ass'y
CB20
CB5
CB16
CB17
CB15
CB14 CB13
CB4 CB22 MAIN (2)MAIN (1) DIGITAL
MAIN (5) MAIN (6) MAIN (7)
(R, L models)
(U, C, T, K, A. B, G, J models)
10
Soavo-900SW
Soavo-900SW
4. フロントパネル ASS'Yの外し方
eのネジ4 本を外し、フロントパネルASS'Yを取り外
します。(Fig.4)
5. 電源トランスの外し方
rのネジ 4 本を外し、電源トランスを取り外します。
(Fig.4)
P.C.B.チェックをする場合には
・リアパネルにある電源コード接続部を持ち上げるため
に、リアパネルASS'Yの下に枕木を敷いてください。
・分解の際に外したコネクターをすべて元通りに接続し
ます。
4. Removal of Front Panel Ass’y
Remove 4 screws (e) and then remove the front
panel ass’y. (Fig. 4)
5. Removal of Power Transformer
Remove 4 screws (r) and then remove the power
transformer. (Fig. 4)
When Checking the P.C.B.
•To help lift the power cable connecting section of the
rear panel, put the supporting wood under the rear
panel assembly.
•Connect all the connectors removed during
disassembly back to the original positions.
Fig. 5
Supporting Wood
Fig. 4
r
e
Power Transformer
Front Panel Ass'y
Table of contents
Other Yamaha Subwoofer manuals
Yamaha
Yamaha NS-SW050 User manual
Yamaha
Yamaha YST-SW800 User manual
Yamaha
Yamaha YST-SW105 User manual
Yamaha
Yamaha YST-SW100 User manual
Yamaha
Yamaha YST-SW012 User manual
Yamaha
Yamaha FSW150 - YST Subwoofer - 75 Watt User manual
Yamaha
Yamaha HS10W User manual
Yamaha
Yamaha SW10 STUDIO User manual
Yamaha
Yamaha SW-3 User manual
Yamaha
Yamaha YST-SW011 User manual
Yamaha
Yamaha YST-SW515 User manual
Yamaha
Yamaha YST-SW515 User manual
Yamaha
Yamaha YST-SW1500 User manual
Yamaha
Yamaha NS-SW210 User manual
Yamaha
Yamaha YST-SW1500 User manual
Yamaha
Yamaha NS-WSW160 User manual
Yamaha
Yamaha YST-SW800 User manual
Yamaha
Yamaha NS-SW700 User manual
Yamaha
Yamaha YST-SW105 User manual
Yamaha
Yamaha YST-SW45 User manual
