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 specifi cally YAMAHA Products, are already known
and understood by the users, and have therefore not been restated.
WARNING:
IMPORTANT:
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
specifi cations are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the
distributor's Service Division.
WARNING:
IMPORTANT:
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 specifi ed. 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 fi rm does not constitute authorization, certifi cation or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
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).
Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
■ CONTENTS
TO SERVICE PERSONNEL ............................................2
REPLACEMENT PARTS LIST ................................ 63–79
REMOTE CONTROL .....................................................80
.......................................21–27
アンプ部調整
.......................28–29
P.O.Box 1, Hamamatsu, Japan
'10.09
A-S500/A-S300
A-S500/A-S300
■ TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked ⚠ 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 0.15 F.
For U model
“CAUTION”
“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A(A-S500)
/ 6A(A-S300), 125V FUSE.”
For C model
CAUTION
F1: REPLACE WITH SAME TYPE 8A (A-S500) / 6A (A-S300), 125V FUSE.
ATTENTION
F1: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 8A (A-S500) / 6A (A-S300), 125V.
WALL
OUTLET
• Leakage current must not exceed 0.5mA.
• Be sure to test for leakage with the AC plug in both polarities.
EQUIPMENT
UNDER TEST
INSULATING
TABLE
AC LEAKAGE
TESTER OR
EQUIVALENT
WARNING: CHEMICAL CONTENT NOTICE!
This product contains chemicals known to the State of California to cause cancer, 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.
About lead free solder /
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)
A-S500/A-S300
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.
U, C models ............................................................ AC 120 V, 60 Hz
R model ........................................AC 110-120/220-240 V, 50/60 Hz
T model ................................................................... AC 220 V, 50 Hz
A model .................................................................. AC 240 V, 50 Hz
B, G models ............................................................ AC 230 V, 50 Hz
L model ....................................................... AC 220-240 V, 50/60 Hz
J model .............................................................. AC 100 V, 50/60 Hz
Power Consumption /
[A-S500]
U, C models ............................................................ 240 W, 330 VA
R, T, A, B, G models ............................................................. 240 W
L model ................................................................................ 220 W
[A-S300]
R, T, A, B, G, L models ......................................................... 190 W
J model ................................................................................150 W
Standby Power Consumption /
................................................................................ 0.5 W or less
YID-W10 Standby Power Consumption (YID-W10 connect) /
YID-W10
................................................................................ 1.2 W or less
iPod Charge Power Consumption /
[A-S500] .................................................................. 35 W or less
[A-S300] .................................................................. 25 W or less
Maximum Power Consumption [R model]
(1 kHz, 6 ohms, 10 % THD)
[A-S500] ..........................................................................510 W
[A-S300] ..........................................................................400 W
AC Outlets /
[A-S300]
Switched x 2 .........................................................100 W max. total
Dimensions (W x H x D) /
..............................435 x 151 x 387 mm (17-1/8" x 6" x 15-1/4")
A-S500/A-S300
Weight / 質量
[A-S500] .........................................................10.3 kg (22.7 lbs.)
[A-S300] ...........................................................9.0 kg (19.8 lbs.)
Finish /
Black color ................................. U, C, R, A, B, G, L, J models
Silver color ....................................... R, T, A, B, G, L, J models
Accessories /
Remote control .......................................................................x 1
Battery (R6, AA, UM-3) .......................................................... x 2
総合
電源電圧
消費電力
待機時消費電力
待機時消費電力(YID-W10 接続時)
iPod 充電時消費電力
AC アウトレット
仕上げ
付属品
[J model]
寸法(幅 × 高さ × 奥行き)
• DIMENSIONS /
Top view
46
(1-3/4")
240 (9-1/2")
55
(2")
(2-1/8")
ø 60
寸法図
335 (13-1/4")50
25.5
(1")
387 (15-1/4")
341 (13-3/8")
20.5
(3/4")
Front view
130 (5-1/8")
435 (17-1/8")
151 (5-7/8")
21
(7/8")
Unit: mm (inch)
単位:mm(インチ)
* Specifications are subject to change without notice.
※ 参考仕様および外観は、製品の改良のため予告なく変更すること
があります。
10
■ INTERNAL VIEW
Top view
12
Front view
345876
131012
14161718201915
A-S500A-S300
911
A-S500/A-S300
1
OPERATION (1) P.C.B.
2
MAIN (6) P.C.B.
3
MAIN (5) P.C.B. (J model)
4
OPERATION (7) P.C.B. (R model)
5
MAIN (2) P.C.B.
6
DOCK P.C.B.
7
FUNCTION (2) P.C.B.
8
FUNCTION (3) P.C.B.
9
FUNCTION (1) P.C.B.
10
MAIN (4) P.C.B.
11
MAIN (1) P.C.B.
12
MAIN (3) P.C.B.
13
POWER TRANSFORMER
14
OPERATION (11) P.C.B.
15
OPERATION (8) P.C.B.
16
OPERATION (6) P.C.B.
17
OPERATION (3) P.C.B.
18
OPERATION (4) P.C.B.
19
OPERATION (5) P.C.B.
20
OPERATION (9) P.C.B.
21
OPERATION (2) P.C.B.
22
OPERATION (10) P.C.B.
2122
■ SERVICE PRECAUTIONS /
サービス時の注意事項
Safety measures
• Some internal parts in this product contain high voltages
and are dangerous. Be sure to take safety measures
during servicing, such as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous
even after the power is turned off because an electric
charge remains and a high voltage continues to exist
there.
Before starting any repair work, connect a discharging
resistor (5k-ohms/10W) to the terminals of each
capacitor indicated below to discharge electricity. The
time required for discharging is about 30 seconds per
each.
C134, C135 on MAIN (1) P.C.B.
For details, refer to “PRINTED CIRCUIT BOARDS: MAIN
(1) P.C.B.”.
a. Remove 2 screws (⑧). (Fig. 2)
b. Remove CB101, CB108, CB503-505, CB706, CB851
and CB853-854. (Fig. 2)
c. Release 2 hooks and then remove the sub-chassis
unit. (Fig. 2)
4. Removal of FUNCTION (1)–(3) and DOCK P.C.B.s
a. Remove 8 screws (⑨). (Fig. 3)
b. Remove screw (⑩) and screw (⑪). (Fig. 2)
c. Remove CB2, CB14, CB21 and CB506. (Fig. 2)
d. Remove the FUNCTION (1)–(3) P.C.B.s and DOCK
• Download the firmware downloader program and
the latest firmware from the specified download
source to the same folder of the PC.
• Prepare the above specified RS-232C cross
cable.
• While writing the firmware, keep the other application
software on the PC closed.
It is also recommended to keep the software on the
task tray closed as well.
● Connection
* Disconnect the power cable of this unit from the
AC outlet
• Set the switch (SW7) of RS-232C conversion
adaptor to the “FLASH UCOM” position. (Fig. 1)
• Connect the writing port (CB509 of the FUNCTION
P.C.B.) located on the rear panel of this unit to
the serial port (RS-232C) of the PC with RS-232C
cross cable, RS-232C conversion adaptor and
flexible flat cable as shown below. (Fig. 1)
● 準備と注意
・ 指定のダウンロード先から、ファームウェア書き
込み用プログラムと最新のファームウェアを、PC
の同じフォルダにダウンロードしてください。
・ RS-232C クロスケーブルは必ず上記仕様のものを
用意してください。
・ 書き込み時は、PC 上の他のアプリケーションソ
フトは閉じてください。
さらに、タスクトレイ上にあるソフトも閉じてお
くことを推奨します。
● 接続
※ 本機の電源コードを AC コンセントから抜いてく
ださい。
・ RS-232C 変換アダプターのスイッチ(SW7)“FLASH
UCOM” 側に設定します。(Fig.1)
・ 本機の書き込み用ポート(FUNCTIONP.C.B. の
CB509)と PC のシリアルポート(RS-232C)を下
記のように接続します。(Fig.1)
PC
Serial port (RS-232C)
シリアルポート(RS-232C)
RS-232C cross cable
RS-232Cクロスケーブル
RS-232C conversion adaptor
RS-232C変換アダプター
SW7
FLASH
UCOM
OTHER
Fig. 1
This unit /本機
Writing port
(FUNCTION P.C.B. CB509)
Flexible flat cable (9P)
カード電線(9P)
A-S500/A-S300
17
A-S500/A-S300
● Operation procedure
1. Connect the power cable of this unit to the AC
outlet.
The power to this unit is supplied and the
microprocessor is in the writing mode.
2. Start up FlashSta.exe.
The screen appears as shown below. (Fig. 2)
3. Select the data to be transmitted and port. (Fig. 2)
• Select Program
Select Internal flash memory.
• RS-232C
Select the port of RS-232C
* For selection of the port, COM1 to 4 can be
used.
As COM5 or higher port cannot be used,
select out of COM 1 to 4 of the setting on the
PC side.
● 操作方法
1. 本機の電源コードを AC コンセントに接続します。
本機に電源が入り、マイコンが書き込みモードに
なります。
2. FlashSta.exe を起動します。
下記の画面が表示されます。(Fig.2)
3. 送信データ、ポートを選択します。(Fig.2)
・SelectProgram
Internalflashmemory を選択します。
・RS-232C
接続している RS-232C ポートを選択します。
※ ポートの選択は COM1 〜 4 までが使用できます。
COM5 以上は使用できませんので、PC 側の設定
で COM1 〜 4 を選択してください。
Select Internal flash memory
Internalflashmemory を選択します
Select the port of RS-232C
接続している RS-232C ポートを選択し
ます
Fig. 2
4. Click [Refer...] and select the firmware name. (Fig. 3)
*The ID and MCU Type are loaded
automatically when the file is selected. (Fig. 3)
Click [OK]. (Fig. 3)
4.[Refer...]をクリックし、書き込むファームウェア
を選択します。(Fig.3)
※ ID、および MCU Type は書き込みファイル選
択後、自動的に取り込まれます。(Fig.3)
[OK]をクリックします。(Fig.3)
A-S500/A-S300
When [Refer...] is clicked, the
“Open” screen appears.
[Refer...]をクリックすると「ファ
イルを開く」が表示されます
18
Fig. 3
A-S500/A-S300
5. Click [Setting], and set the baud rate. (Fig. 4)
6. Click [E.P.R.], then the “Erase” screen appears. (Fig. 5)
7. Click [OK] to start writing. (Fig. 5)
5.[Setting]をクリックし、通信速度の設定を行い
ます。(Fig.4)
115200
40
Fig. 4
6.[E.P.R]をクリックすると、「Erase」が表示されま
す。(Fig.5)
7. [OK]をクリックして書き込みを開始します。(Fig.5)
Fig. 5
Writing being executed. /
書き込み中
A-S500/A-S300
19
A-S500/A-S300
8. When writing of the firmware is completed, the
screen appears as shown below. (Fig. 6)
Click [OK]. (Fig. 6)
9. Click [Exit] to end FlashSta.exe. (Fig. 6)
10. Disconnect the power cable of this unit from the
AC outlet.
11. Remove the RS-232C conversion adaptor and
flexible flat cable from the writing port of this unit.
12. Connect the power cable of this unit to the AC
outlet, start up the self-diagnostic function and
check that the firmware version is the same
as written one. (See “Confirmation of firmware
version”)
8. ファームウェアの書き込みが完了すると、以下の
画面が表示されます。(Fig.6)
[OK]をクリックします。(Fig.6)
9.[Exit]をクリックして FlashSta.exe を終了します。
(Fig.6)
Fig. 6
10.本機の電源コードを AC コンセントから抜きます。
11.本機の書き込み用ポートから RS-232C 変換アダプ
ターとカード電線を取り外します。
12.本機の電源コードを AC コンセントに接続してダ
イアグを起動し、ファームウェアバージョンが書
き込まれたものと同じであることを確認します。
(「ファームウェアのバージョンの確認」参照)
A-S500/A-S300
20
A-S500/A-S300
■ SELF-DIAGNOSTIC FUNCTION /
A-S500A-S300
This unit has self-diagnostic functions that provides the
following functions.
• Indication of firmware version
• Indication of power management switch status
• Indication of protection information
• Initialization
● Starting Self-Diagnostic Function
* Execute step 2 and 3 within 15 seconds after
executing step 1.
1. With the power to this unit turned on, press “
” (power) and “PURE DIRECT” switches to turn
them off respectively. (Fig. 1)
2. Repeat pressing “PURE DIRECT” switch to turn it
ON/OFF 3 times. (Fig. 1)
3. Press the “
power. (Fig. 1)
The self-diagnostic function mode is activated.
Set the SPEAKERS selector to the OFF, B or A+B
position and press the “
the power. (Fig. 6)
Self-diagnostic function is canceled.
To reserve initialization of the back-up IC
Set the SPEAKERS selector to the “A” position, press
the “
” (power) switch to turn off the power. (Fig. 6)
Self-diagnostic function is canceled with the initialization
reserved.
” (power) switch to turn off
● ダイアグの解除
バックアップ用 IC のメモリーを保持するには
SPEAKERS セレクターを OFF、B または A+B に設定し
て、“
”(パワー)スイッチを押して電源を切ります。
(Fig.6)
ダイアグが解除されます。
バックアップ用 IC の初期化を予約するには
SPEAKERS セレクターを A に設定して、“
スイッチを押して電源を切ります。(Fig.6)
初期化が予約された状態でダイアグが解除されます。
”(パワー)
A-S500/A-S300
24
A-S500/A-S300
● Starting in the Protection Cancel mode
If the protection function works and causes hindrance
to trouble shoot, cancel the protection function as
described below, and it will be possible to enter the
self-diagnostic function mode.
(The protection functions other than the excess
current detect function will be disabled.)
* Execute step 2 and 3 within 15 seconds after
executing step 1.
1. With the power to this unit turned on, press “
(power) and “PURE DIRECT” switches to turn them
off respectively. (Fig. 5)
2. Repeat pressing “PURE DIRECT” switch to turn it
ON/OFF 6 times. (Fig. 5)
3. Press the “
power. (Fig. 5)
4. Press the “PURE DIRECT” switch inward to the
ON position. (Fig. 5)
After a few seconds, the self-diagnostic function
mode is activated with the protection functions
disabled.
In this mode, the “LINE 2” INPUT indicator flashes
to indicate that the mode is self-diagnostic
function mode with the protection functions
disabled. (Fig. 5)
• Using this product with the protection function
disabled may cause further damage to this unit. Use
special care for this point when using this mode.