Yamaha RX-V683 User manual

SERVICE MANUAL
AV RECEIVER
RX-V683/RX-A770
Note:
When the DIGITAL P.C.B. or IC82 on DIGITAL P.C.B. is replaced, this unit will display “Internal Error”and will
not operate properly. The model name and serial number MUST be written to the backup IC (EEPROM: IC82 on
DIGITAL (1) P.C.B.) to have proper operation. (For detailed procedure, refer to related Service News or Service
Bulletin. Or contact your local Yamaha representative.)
注意：
DIGITAL P.C.B. または DIGITAL P.C.B. のIC82 を交換すると、“Internal Error” が表示されて本機が正常に動作しなく
なります。正常に動作させるために、モデル名とシリアル番号をバックアップ IC（EEPROM：DIGITAL (1) P.C.B. の
IC82）へ書き込む必要があります。（詳しい手順は、関連するサービスニュース、または技術報告を参照してくださ
い。もしくはヤマハのサービスセンターまでご連絡ください）
■CONTENTS
TO SERVICE PERSONNEL........................................... 2
FRONT PANELS ............................................................ 3
REAR PANELS .............................................................. 5
REMOTE CONTROL PANEL........................................11
SPECIFICATIONS / 参考仕様 ...................................... 12
INTERNAL VIEW ......................................................... 17
SERVICE PRECAUTIONS / サービス時の注意事項 .... 18
DISASSEMBLY PROCEDURES / 分解手順 ................ 19
UPDATING FIRMWARE /
ファームウェアのアップデート................................. 29
SELF-DIAGNOSTIC FUNCTION /
ダイアグ（自己診断機能）.......................................... 33
POWER AMPLIFIER ADJUSTMENT /
パワーアンプ調整 ...................................................... 81
DISPLAY DATA ............................................................ 82
IC DATA........................................................................ 85
PIN CONNECTION DIAGRAMS .................................. 93
BLOCK DIAGRAMS..................................................... 94
WIRING DIAGRAMS.................................................... 98
PRINTED CIRCUIT BOARDS.................................... 100
CIRCUIT DIAGRAMS................................................. 123
REPLACEMENT PARTS LIST................................... 139
REMOTE CONTROL.................................................. 186
FIRMWARE UPDATING PROCEDURE /
ファームウェア更新手順.......................................... 189
101390
'17.05
RX-V683/RX-A770

2
RX-V683/RX-A770
RX-V683/RX-A770
■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μF.
WALL
OUTLET
EQUIPMENT
UNDER TEST
AC LEAKAGE
TESTER OR
EQUIVALENT
INSULATING
TABLE
• Leakagecurrentmustnotexceed0.5mA.
• BesuretotestforleakagewiththeACpluginbothpolarities.
For U model
“CAUTION”
“F5401: FORCONTINUEDPROTECTIONAGAINSTRISKOFFIRE,REPLACEONLYWITHSAMETYPE2A,
250VFUSE.”
“F5402: FORCONTINUEDPROTECTIONAGAINSTRISKOFFIRE,REPLACEONLYWITHSAMETYPE8A,
125VFUSE.”
“F5405: FORCONTINUEDPROTECTIONAGAINSTRISKOFFIRE,REPLACEONLYWITHSAMETYPE2A,
63VChipFUSE.”
For C model
CAUTION
F5401: REPLACEWITHSAMETYPE2A,250VFUSE.
F5402: REPLACEWITHSAMETYPE8A,125VFUSE.
ATTENTION
F5401: UTILISERUNFUSIBLEDERECHANGEDEMÉMETYPEDE2A,250V.
F5402: UTILISERUNFUSIBLEDERECHANGEDEMÉMETYPEDE8A,125V.
CALIFORNIA PROPOSITION 65 WARNING
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 MOUTHFOR 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 / 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
RX-V683/RX-A770
RX-V683/RX-A770
■FRONT PANELS
RX-V683

4
RX-V683/RX-A770
RX-V683/RX-A770
RX-A770 (U, C, R,T, J models)
RX-A770 (A, F models)

5
RX-V683/RX-A770
RX-V683/RX-A770
■REAR PANELS
RX-V683 (U, C models)
RX-V683 (R model)
RX-V683 (K model)

6
RX-V683/RX-A770
RX-V683/RX-A770
RX-V683 (A model)
RX-V683 (B, G models)
RX-V683 (F model)

7
RX-V683/RX-A770
RX-V683/RX-A770
RX-V683 (L model)
RX-V683 (V model)
RX-V683 (S model)

8
RX-V683/RX-A770
RX-V683/RX-A770
RX-V683 (H model)
RX-A770 (U, C models)
RX-A770 (R model)

9
RX-V683/RX-A770
RX-V683/RX-A770
RX-A770 (T model)
RX-A770 (A model)
RX-A770 (F model)

10
RX-V683/RX-A770
RX-V683/RX-A770
RX-A770 (J model)

11
RX-V683/RX-A770
RX-V683/RX-A770
■REMOTE CONTROL PANEL
RAV553

12
RX-V683/RX-A770
RX-V683/RX-A770
Maximum Effective Output Power / 実用最大出力 (JEITA)
(1kHz,10%THD,1channeldriven)
[RX-V683]
FRONT L/R...........................................................................150W/ch
CENTER....................................................................................150W
SURROUND L/R ..................................................................150W/ch
SURROUNDBACKL/R .......................................................150W/ch
[RX-A770]
FRONT L/R...........................................................................160 W/ch
CENTER....................................................................................160 W
SURROUND L/R ..................................................................160 W/ch
SURROUNDBACKL/R .......................................................160 W/ch
Dynamic Power Per Channel / ダイナミックパワー (IHF)
FRONT L/R (1 channel driven)
[RX-V683]....................................................125/165/190/235W
[RX-A770]....................................................130/170/195/240W
Damping Factor / ダンピングファクタ (20Hzto20kHz,8ohms)
FRONTL/RtoSPEAKER-A..............................................100 or more
Input Sensitivity/Input Impedance / 入力感度／入力インピーダンス
(1kHz,100W/8ohms)
PHONO(MM) ...................................................... 3.5mV/47k-ohms
AV2 etc. .............................................................. 200mV/47k-ohms
Maximum Input Signal / 最大許容入力 (1kHzTHD)
(0.1%)
PHONO(MM) ...........................................................................60 mV
(0.5%)
AV2 etc. (EFFECT ON)................................................................2.3 V
Output Level/Output Impedance / 出力電圧／出力インピーダンス
SUBWOOFER (2 ch stereo and FRONT SP: small)
............................................................................... 1 V / 1.2 k-ohms
ZONE2 OUT....................................................... 470mV/1.7k-ohms
Headphone Jack Rated Output/Output Impedance /
ヘッドホン出力／出力インピーダンス (1kHz,50mV,8ohms)
AV2 etc. input....................................................... 100mV/560ohms
Frequency Response / 再生周波数帯域 (10Hzto100kHz)
AV2 etc., FRONT................................................................... 0 / -3 dB
RIAA Equalization Deviation /RIAA 偏差
PHONO(MM) .................................................................... 0±0.5dB
Total Harmonic Distortion / 全高調波歪率
(20Hzto20kHz,10V)
PHONO(MM)→SP OUT FRONT ................................ 0.02%orless
(20Hzto20kHz,50W/8ohms)
AV2 etc. (Pure Direct) to FRONT SP OUT..................... 0.06%orless
Signal to Noise Ratio / 信号対雑音比 (IHF-Anetwork)
PHONO(MM)toSPOUTFRONT(Inputshorted35mV)
.................................................................................. 96dBormore
AV2 etc. (PURE DIRECT) to SP OUT (Input 1 k-ohm shorted)
................................................................................ 110 dB or more
Residual Noise / 残留ノイズ (IHF-Anetwork)
FRONT L/R to SP OUT................................................. 150μVorless
Channel Separation / チャンネルセパレーション
PHONO(Inputshorted,1kHz/10kHz)
........................................................ 60dBormore/55dBormore
AV2etc.(Input1k-ohmshorted,1kHz/10kHz)
........................................................ 70dBormore/50dBormore
■SPECIFICATIONS / 参考仕様
■Audio Section / オーディオ部
Rated Output Power (Power Amp. Section) /
定格出力（パワーアンプ部）
[RX-V683]
– 1 channel driven –
G,F,Lmodels(4ohms)
FRONT L/R ..................................................................150W/ch
U,C,R,K,A,B,G,F,L,V,S,Hmodels(8ohms)
FRONT L/R ..................................................................125W/ch
CENTER............................................................................125W
SURROUND L/R ..........................................................125W/ch
SURROUNDBACKL/R ...............................................125W/ch
– 2 channels driven –
U, C models (8 ohms)
FRONT L/R ..................................................................105W/ch
CENTER............................................................................105W
SURROUND L/R ..........................................................105W/ch
SURROUNDBACKL/R ...............................................105W/ch
(20Hzto20kHz,0.06%THD)
– 2 channels driven –
U,C,R,K,A,B,G,F,L,V,S,Hmodels(8ohms)
FRONT L/R ....................................................................90W/ch
[RX-A770]
(1Hz,0.9%THD)
– 1 channel driven –
Fmodel(4ohms)
FRONT L/R ..................................................................160 W/ch
U, C, R, T, A, F models (8 ohms)
FRONT L/R ..................................................................130 W/ch
CENTER............................................................................130 W
SURROUND L/R ..........................................................130 W/ch
SURROUNDBACKL/R ...............................................130 W/ch
J model (6 ohms)
FRONT L/R ..................................................................130 W/ch
CENTER............................................................................130 W
SURROUND L/R ..........................................................130 W/ch
SURROUNDBACKL/R ...............................................130 W/ch
– 2 channels driven –
U, C models (8 ohms)
FRONT L/R ..................................................................110 W/ch
CENTER............................................................................110 W
SURROUND L/R ..........................................................110 W/ch
SURROUNDBACKL/R ...............................................110 W/ch
J model (6 ohms)
FRONT L/R ..................................................................110 W/ch
(20Hzto20kHz,0.06%THD)
U, C, R, T, A, F models (8 ohms)
FRONT L/R ....................................................................95W/ch
J model (6 ohms)
FRONT L/R ....................................................................95W/ch

13
RX-V683/RX-A770
RX-V683/RX-A770
■DAB+ Tuner Section
[RX-A770] (A, F models)
Tuning Range
...................................................................174to240MHz(BandIII)
Support Audio Format
......................... MPEG1LayerII/MPEG-4HE-AACv2(aacPlusv2)
Antenna
.......................................................................... 75ohmsunbalanced
■General / 総合
Power Supply / 電源電圧
U, C models..............................................................AC120V,60Hz
R, V, S models............................... AC110–120/220–240V,50/60Hz
T model.....................................................................AC220V,50Hz
Kmodel ....................................................................AC220V,60Hz
A model .................................................................... AC240V,50Hz
B, G, F models..........................................................AC230V,50Hz
L,Hmodels ................................................. AC220–240V,50/60Hz
J model ................................................................AC100V,50/60Hz
Power Consumption / 消費電力
U, C models..............................................................................400W
T,K,A,G,Fmodels..................................................................300 W
R,L,V,S,Hmodels ..................................................................270 W
J model .....................................................................................360 W
Standby Power Consumption (reference data) /
待機時消費電力（参考値）
StandbyThroughOff/HDMIControlisOff ...............................0.1 W
StandbyThroughAuto/HDMIControlisOn(*1)......................0.4W
StandbyThroughOn/HDMIControlisOn
(INPUT:HDMI1(HDMInosignal)) .........................................1.1 W
Network Standby On (Wired).....................................................1.6 W
Network Standby On (Wireless).................................................1.6 W
Network Standby On (Wireless Direct) ......................................1.8 W
Network Standby On (Bluetooth)...............................................1.6 W
HDMIControlOn/StandbyThroughOn/NetworkStandbyOn
(Wireless Direct) ........................................................................2.4W
(*1)
HDMInosignalandnoCECfor8hours
HDMI 無信号かつ CEC 送受信なし 8時間継続後
Maximum Power Consumption / 最大消費電力
R,V,S,Hmodels ......................................................................590W
Dimensions (W x H x D) / 寸法（幅× 高さ× 奥行き）
[RX-V683] ................435x171x378mm(17-1/8"x6-3/4"x14-7/8")
[RX-A770] ...................... 435x171x380mm(17-1/8"x6-3/4"x15")
Reference Dimension with attaching wireless antenna (W x H x D)
/参考寸法（アンテナ直立時）
（幅× 高さ× 奥行き）
[RX-V683] ................435x234x378mm(17-1/8"x9-1/4"x14-7/8")
[RX-A770] ...................... 435x234x380mm(17-1/8"x9-1/4"x15")
Weight / 質量
[RX-V683] .................................................................10 kg (22.0 lbs.)
[RX-A770] ..............................................................10.5kg(23.1lbs.)
Finish / 仕上げ
[RX-V683]
U,C,R,K,A,B,G,F,L,V,S,Hmodels......................... Black color
A, B, G, F models...................................................... Titanium color
[RX-A770]
U, C, R, T, A, F, J models ............................................... Black color
J model ..................................................................... Titanium color
T model ........................................................................... Gold color
Volume Control/Step / 音量可変範囲／ステップ
Main Zone..........................MUTE/-80dBto+16.5dB/0.5dBstep
Zone 2................................MUTE/-80dBto+10.0dB/0.5dBstep
Tone Control Characteristics / トーンコントロール特性
Bass
Boost/Cut........................................ ±6dB/0.5dBstep,at50Hz
Turnover frequency ............................................................350Hz
Treble
Boost/Cut...................................... ±6dB/0.5dBstep,at20kHz
Turnover frequency ...........................................................3.5kHz
Filter Characteristics / フィルタ特性
FRONT,CENTER,SURROUND,SURROUNDBACKsmall(H.P.F.)
......................fc=40/60/80/90/100/110/120/160/200Hz,12dB/oct.
SUBWOOFER small (L.P.F.)
......................fc=40/60/80/90/100/110/120/160/200Hz,24dB/oct.
Optical Jack, Coaxial Jack Support Frequencies /
Optical 端子、Coaxial 端子 対応 fs
.................................................................................32kHzto96kHz
■Video Section / ビデオ部
Video Signal Type / ビデオ信号方式
..........................................................................NTSC / PAL / SECAM
Composite Video Signal Level / コンポジットビデオ信号
................................................................................ 1Vp-p/75ohms
Component Signal Level / コンポーネントビデオ信号
Y.............................................................................. 1Vp-p/75ohms
Pb/Pr .................................................................... 0.7Vp-p/75ohms
Video Maximum Input Level / ビデオ最大許容入力 )
.................................................................................1.5Vp-pormore
■FM Tuner Section / FM チューナー部
Tuning Range / 受信周波数範囲
U, C models.................................................. 87.5MHzto107.9MHz
R, L , V ,S,Hmodels ... 87.5MHzto108.0MHz/87.50MHzto108.00MHz
T,K,A,B,G,Fmodels ............................. 87.50MHzto108.00MHz
J model ........................................................... 76.0MHzto94.9MHz
50 dB Quieting Sensitivity /50 dB SN 感度 (IHF)
(1kHz,100%MOD.)
Mono...........................................................................3μV(20.8dBf)
Signal to Noise Ratio / 信号対雑音比 (IHF)
Mono......................................................................................... 69dB
Stereo ....................................................................................... 67 dB
Harmonic Distortion / 歪率 (1kHz)
Mono..........................................................................................0.5%
Stereo ........................................................................................0.6%
Antenna Input / アンテナ入力
.......................................................................... 75ohmsunbalanced
■AM Tuner Section / AM チューナー部
Tuning Range / 受信周波数範囲
U, C models.............................................................530to1,710kHz
R,L,V,S,Hmodels ...................530to1,710kHz/531to1,611kHz
T,K,A,B,G,F,Jmodels .........................................531to1,611kHz
Antenna / アンテナ
......................................................................................Loop antenna

14
RX-V683/RX-A770
RX-V683/RX-A770
Accessories / 付属品
Remote control............................................................................... x 1
FMantenna(1.4m) ....................................................................... x 1
DAB/FM antenna (1.6 m) (RX-A770) ............................................. x 1
AM antenna (1.2 m) ....................................................................... x 1
Antenna isolator (RX-A770) (T model)........................................... x 1
YPAO microphone (6 m)................................................................ x 1
Battery(R03,AAA,UM-4).............................................................. x 2
Power cable (RX-A770) ................................................................. x 1
* 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。
U........................U.S.A. model
C................. Canadian model
R.................... General model
T.....................Chinese model
K......................Korean model
A.................Australian model
B.......................British model
G................. European model
F..................... Russian model
L................. Singapore model
V...................... Taiwan model
S...................Brazilian model
H...........................Thai model
J...................Japanese model
Manufactured under license from Dolby Laboratories. Dolby, Dolby
Atmos, Dolby Surround, and the double-D symbol are trademarks of
Dolby Laboratories.
ドルビーラボラトリーズからの実施権に基づき製造されています。
Dolby、ドルビー、Dolby Atmos、Dolby Surround、およびダブル D記号
はドルビーラボラトリーズの商標です。
For DTS patents, see http://patents.dts.com. Manufactured under license
from DTS, Inc. DTS, the Symbol, DTS in combination with the Symbol,
DTS: X, and the DTS:X logo are registered trademarks or trademarks of
DTS, Inc. in the United States and/or other countries.
© DTS, Inc. All Rights Reserved.
DTS の特許に関しては http://patents.dts.com をご覧ください。本製品は
DTS, Inc. のライセンスに基づき製造しています。
DTS とそのシンボルマーク、および DTS とそのシンボルマークの組み合せ、
DTS:X、DTS-X ロゴは米国及びその他の国々における DTS, Inc. の登録商
標または商標です。
©DTS, Inc. All Rights Reserved.
Supports iOS 7 or later for setup using Wireless Accessory Configuration.
“Made for iPod,”“Made for iPhone,”and “Made for iPad”mean that an
electronic accessory has been designed to connect specifically to iPod,
iPhone, or iPad, respectively, and has been certified by the developer to
meet Apple performance standards.
Apple is not responsible for the operation of this device or its compliance
with safety and regulatory standards.
Please note that the use of this accessory with iPod, iPhone, or iPad may
affect wireless performance.
iTunes, AirPlay, iPad, iPhone, iPod, and iPod touch are trademarks of
Apple Inc., registered in the U.S. and other countries.
iPad Air and iPad mini are trademarks of Apple Inc.
App Store is a service mark of Apple Inc.
iOS 7 以降では、WAC（Wireless Accessory Configuration）を使った設定
をサポートしています。
「Made for iPod」、「Made for iPhone」、「Made for iPad」とは、それぞれ
iPod、iPhone、iPad 専用に接続するよう設計され、アップルが定める性
能基準を満たしているとデベロッパーによって認定された電子アクセサ
リーであることを示します。
アップルは、これらの機器操作または、安全規制基準に関する一切の責任
を負いません。
本機を iPod、iPhone、iPad と使用する場合、無線通信の性能に影響する
場合があります。
iTunes、AirPlay、iPad、iPhone、iPod、iPod touch は、米国およびその他
の国々で登録されている Apple Inc. の商標です。
iPad Air、iPad mini は、Apple Inc. の商標です。
App Store はApple Inc. のサービスマークです。
This receiver supports network connections.
本機はネットワーク接続に対応しています。

15
RX-V683/RX-A770
RX-V683/RX-A770
The terms HDMI, the HDMI Logo, and High-Definition Multimedia Interface
are trademarks or registered trademarks of HDMI Licensing LLC in the
United States and other countries.
HDMI、HDMI ロゴ、および High-Definition Multimedia Interface は、米国
およびその他の国々における HDMI Licensing LLC の商標または登録商標
です。
“x.v.Color”is a trademark of Sony Corporation.
「x.v.Color」は、ソニー株式会社の商標です。
“SILENT CINEMA”is a trademark of Yamaha Corporation.
「サイレントシネマ™ SILENT CINEMA ™」はヤマハ株式会社の登録商標
です。
DLNA ™ and DLNA CERTIFIED™ are trademarks or registered trademarks
of Digital Living Network Alliance. All rights reserved. Unauthorized use is
strictly prohibited.
DLNA ™および DLNA CERTIFIED ™はデジタルリビングネットワークアラ
イアンスの登録商標です。無断使用は固く禁じられています。
Windows ™
Windows is a registered trademark of Microsoft Corporation in the United
States and other countries.
Windows は米国 Microsoft Corporation の米国およびその他の国における
登録商標です。
Internet Explorer, Windows Media Audio and Windows Media
Player are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
Internet Explorer、Windows Media Audio、Windows Media Player は、
米国 Microsoft Corporation の米国およびその他の国における登録商標、
または商標です。
Android ™ Google Play ™
Android and Google Play are trademarks of Google Inc.
Android、Google Play は、Google Inc. の商標または登録商標です。
AAC ロゴマーク はドルビーラボラトリーズの商標です。
The Wi-Fi CERTIFIED ™ Logo is a certification mark of the Wi-Fi Alliance®.
The Wi-Fi Protected Setup™ Identifier Mark is a mark of the Wi-Fi Alliance®.
Wi-Fi CERTIFIED ™ ロゴは Wi-Fi Alliance® の認証マークです。
Wi-Fi Protected Setup
™ マークは Wi-Fi Alliance® のマークです。
The Bluetooth® word mark and logos are registered trademarks owned by
Bluetooth SIG, Inc. and any use of such marks by Yamaha Corporation is
under license.
Bluetooth protocol stack (Blue SDK)
Copyright 1999-2014OpenSynergy GmbH
All rights reserved. All unpublished rights reserved.
Bluetooth® のワードマークおよびロゴは、Bluetooth SIG、Inc. が所有す
る登録商標であり、ヤマハ株式会社はこれらのマークをライセンスに基づ
いて使用しています。その他の商標およびトレードネームは、それぞれの
所有者に帰属します。
Bluetooth プロトコルスタック（Blue SDK）
© 1999-2014OpenSynergy GmbH
All rights reserved. All unpublished rights reserved.
MusicCast is a trademark or registered trademark of Yamaha Corporation.
MusicCast は、ヤマハ株式会社の商標または登録商標です。
Yamaha Eco-Label is a mark that certifies products of high environmental
performance.
ヤマハエコラベルは、優れた環境性能を備えた製品として、ヤマハグルー
プが認定するマークです。
Google Noto Fonts (Version 1.001)
この製品には Apache バージョン 2.0 ライセンスで配布されている製
作物が含まれています。
Copyright © 2012 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the “License”); you
may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an “AS IS”BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Explanations regarding GPL
This product utilizes GPL/LGPL open-source software in some
sections. You have the right to obtain, duplicate, modify, and
redistribute this open-source code only. For information on GPL/LGPL
open source software, how to obtain it, and the GPL/LGPL license,
refer to the Yamaha Corporation website (http://download.yamaha.
com/sourcecodes/musiccast/).
GPL/LGPL について
本製品は、GPL/LGPL ライセンスが適用されたオープンソースソフト
ウェアのコードを一部に使用しています。
お客様は GPL/LGPL ライセンスの条件に従い、これらのソフトウェア
のソースコードの入手、改変、再配布の権利があります。
GPL/LGPL ライセンスの適用を受けるソフトウェアの概要、ソース
コードの入手、GPL/LGPL ライセンスの内容につきましては、以下の
弊社ウェブサイトをご覧ください。
http://download.yamaha.com/sourcecodes/musiccast
(For RX-A770 U.K., Europe, Australia and Russia models)
The unit supports DAB/DAB+ tuning.

16
RX-V683/RX-A770
RX-V683/RX-A770
•DIMENSIONS / 寸法図
RX-V683 RX-A770
Unit: mm (inch)
435 (17-1/8")
171(6-3/4")
150 (5-7/8")
21
(7/8")
Unit: mm (inch)
435 (17-1/8")
171(6-3/4")
150 (6")
21
(7/8")
335 (13-1/4")
Ø 60
325 (12-3/4")
193(7-5/8")
378 (14-7/8")
18
(3/4")
59
(2-1/4")
35
(1-3/8")
72 (2-7/8")
50
(2")
335 (13-1/4")
222.5 (8-3/4") 212.5 (8-3/8")
173 (6-3/4")
Ø 60
Ø 48/18
324 (12-3/4")
193(7-5/8")
380 (15")
21
(7/8")
59
(2-1/4")
72 (2-7/8")
50
(2")
Top view Top view
Front view Front view
35
(1-3/8")
234 (9-1/4") 234 (9-1/4")

17
RX-V683/RX-A770
RX-V683/RX-A770
RX-V683
■INTERNAL VIEW
Top view
Front view
32
9
o
m jkln
r s tp q
1 84 5 6 7 a
OPERATION (2) P.C.B.
b
OPERATION (13) P.C.B.
c
MAIN (2) P.C.B. (R, V, S models)
d
Network Module
e
DIGITAL (1) P.C.B.
f
TUNER Module
g
OPERATION (3) P.C.B.
h
OPERATION (15) P.C.B.
i
MAIN (5) P.C.B.
j
MAIN (4) P.C.B.
k
MAIN (3) P.C.B.
l
MAIN (1) P.C.B
m
MAIN (6) P.C.B.
n
POWER TRANSFORMER
o
OPERATION (7) P.C.B.
p
OPERATION (5) P.C.B.
q
OPERATION (14) P.C.B.
r
OPERATION (1) P.C.B.
s
DIGITAL (2) P.C.B.
t
OPERATION (3) P.C.B.

18
RX-V683/RX-A770
RX-V683/RX-A770
Top view
Front view
9
o q r
m jkln
vutsp
1 82 3 4 5 6 7
■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 indica te d be lo w 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/10 W) to the terminals of each
capacitor indicated below to discharge electricity.
The time required for discharging is about 30 seconds
per each.
C2184and 2185on MAIN (1) P.C.B.
For details, refer to “PRINTED CIRCUIT BOARDS”.
安全対策
•この製品の内部には高電圧部分があり危険です。修理
の際は、絶縁性の手袋を使用するなどの安全対策を行っ
てください。
•下記のコンデンサには電源を OFF にした後も電荷が残
り、高電圧が維持されており危険です。
修理作業前に放電用抵抗（5k Ω/10 W）を下記の各コ
ンデンサの端子間に接続して放電してください。
放電所用時間は各々約 30 秒間です。
MAIN（1）P.C.B. のC2184、C2185
詳しくは “PRINTED CIRCUIT BOARDS” を参照してく
ださい。
a
OPERATION (2) P.C.B.
b
OPERATION (13) P.C.B.
c
MAIN (2) P.C.B. (R model)
d
Network Module
e
DIGITAL (1) P.C.B.
f
U, C models: TUNER Module
A, B, G, F models:
OPERATION (9) P.C.B. + DAB Module
g
OPERATION (3) P.C.B.
h
OPERATION (15) P.C.B.
i
MAIN (5) P.C.B.
j
MAIN (4) P.C.B.
k
MAIN (3) P.C.B.
l
MAIN (1) P.C.B
m
MAIN (6) P.C.B.
n
POWER TRANSFORMER
o
OPERATION (18) P.C.B.
p
OPERATION (10) P.C.B.
q
OPERATION (1) P.C.B.
r
OPERATION (7) P.C.B.
s
OPERATION (14) P.C.B.
t
OPERATION (5) P.C.B.
u
DIGITAL (2) P.C.B.
v
OPERATION (19) P.C.B.
RX-A770

19
RX-V683/RX-A770
RX-V683/RX-A770
■DISASSEMBLY PROCEDURES / 分解手順
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
1. Removal of Top Cover
a. Remove 4screws (1) and 5screws (2). (Fig. 1)
b. Lift the rear side of the top cover to remove it. (Fig. 1)
2. Removal of Front Panel Unit
a. Remove 6 screws (3), and remove W4501 and W4761. (Fig. 1)
b. Remove CB1, CB6, CB82, CB477, CB502, CB941 and CB951. (Fig.1)
c. Release 2 hooks on both ends and remove the front panel unit. (Fig. 1)
CB502
DIGITAL (1) P. C.B.
OPERATION (3) P. C.B.
Hook
Front panel unit
CB477
W4501
W4761
OPERATION (7) P. C.B.
Hook
CB82
CB1
CB6
CB941
CB951
Top cover
1
1
3
3
3
2
Fig. 1
RX-V683

20
RX-V683/RX-A770
RX-V683/RX-A770
3. Removal of Network Module
a. The Wireless LAN Antenna Connector is removed by using MHF Connector Remover. (Fig. 2)
b. Remove screw (4). (Fig. 2)
c. Remove the Network Module to upward.
CAUTION !
•To remove the Wireless LAN Antenna Connector, use the special MHF Connector Remover. Hook the tip of this tool on
the cover of the Wireless LAN Antenna Connector and pull it straight in the direction of the engaging axis of the Wireless
LAN Antenna Connector. (Fig. 3)
Special removing tool
ZF484800: MHF Connector Remover
•The Wireless LAN Antenna Connector should only be plugged back to the Network Module after it has been installed
back onto the DIGITAL P.C.B.
•When plugging the Wireless LAN Antenna Connector back to the Network Module, make sure to hold it and insert it
vertically using the MHF Connector Remover. Make sure not to insert the Wireless LAN Antenna Connector at a sharp
angle as it may break.
•The Wireless LAN Antenna Connector can be inserted and removed up to 5times only.
Fig. 2
Wireless LAN
Antenna Connector
Network module
4
Fig. 3
MHF Connector Remover
Wireless LAN Antenna Connector
RX-V683