Yamaha A-S700 BL Manuel de service

A-S700101117SERVICE MANUALIMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has

10A-S700A-S700 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

11A-S700A-S700Top coverトップ カ バ ーFrame topフレームTOPAn Allen hex socket screwdriver6角穴用ドライバー2mmLock set screw止めネジKnob VOL unitノブVOLユニットKnob SEL unitノブSELユ

12A-S700A-S700・ ノブ VOL ユニットを取り付ける場合：a. VOLUME（VR805）を左いっぱいに回します。（Fig. 2）b. ノブ VOL ユニットのスリットを VOLUME MIN の位置に合わせ、取り付けます。（Fig. 2）* このとき、まだ止めネジは締めま

13A-S700A-S700Knob VOL unitノブVOLユニットSlitスリットCutカット位置Lock set screw止めネジLock set screw止めネジVR805SW803VOLUME MIN.VOLUME MAX.Knob SEL unitノブSELユニットFront pa

14A-S700A-S700CB283CB802MAIN (4) P.C.B.FUNCTION (2) P.C.B.OPERATION (1) P.C.B.CB611CB606CB609Sub-chassis unitサブシャーシユニット3. サブシャーシユニットの外し方a. のネジ 2 本を

15A-S700A-S700Sub-chassis unitサブシャーシユニットChassisシャーシGround leadアース線Rubber sheet and clothゴ ムシ ートと布When checking the P.C.B.s:• Put the rubber sheet and

16A-S700A-S700Chassis coverシャーシカバーRubber sheet and clothゴ ムシ ートと布MAIN (1) P.C.B.When checking the P.C.B.s:• Spread the rubber sheet and the cloth. Th

17A-S700A-S700R111R112R135R136Cut offR175 (L ch)R176 (R ch)0.1mV–10mV(L ch)0.1mV–10mV(R ch)R135R175 R176R111R112R136 AMP ADJUSTMENT / アンプ部調整● アイドリング

18A-S700A-S700L chR ch0.1 mV – 10 mVR175R176R136R112R111R135Cut off0.1 mV – 10 mVCut offMAIN (1)SCHEMATIC DIAGRAM

19A-S700A-S700POWER indicatorOFF ON/STANDBYOFF OFFONOFF OFFONOFFON1 214. “POWER” switch2. “CD DIRECT AMP” switch 3. “PURE DIRECT” switch SELF-DIAGNO

2A-S700A-S700This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.DO NOT PLAC

20A-S700A-S700POWER indicator flashing pattern /POWERインジケーターの点滅パターンFlashing 2 /点滅 2Flashing 4 /点滅 4Flashing 6 /点滅 6Flashing 7 /点滅 7Lit /点灯: Lit / 点灯:

21A-S700A-S700c. 過電流プロテクション L/Rch原因： アンプ部に過電流が流れた。スピーカー端子をショートした。（※）正常値： LOW（0V）検出ポート： PRI（FUNCTION P.C.B. のマイコン IC602 の 80 ピン）検出先： PRI（MAIN P.C.

22A-S700A-S700OFFONPOWER indicator5. "PURE DIRECT" switchOFF ON/STANDBYOFF OFFONOFF OFFONOFFON1 214. "POWER" switch2. "CD DIR

23A-S700A-S700注意！・ 異常状態のまま本機の電源を入れると、危険な状態になり、さらに回路が損傷を受ける原因になります。それを避けるために、プロテクションが予め設定された回数だけ働いた以降、POWER キーを押しても電源が入らなくなります。a. 電源電圧プロテクション：連続 3

24A-S700A-S700OFF ON/STANDBYOFF OFFONOFF OFFON1OFFONOFFON2 31Example) When the firmware version is [V0007]例） ファームウェアバージョンが［V0007］の場合4. "POWER&quo

25A-S700A-S700OFF ON/STANDBYOFF OFFON1OFFONOFFONOFF OFFON12 3OFFON44. "POWER" switchINPUT indicators3. "PURE DIRECT" switch2. &quo

26A-S700A-S700123456789101112131415161718192021222324252627282930807978777675747372717069686766656463626160595857565554535251DEST1DEST0MOD1MOD0BYTEMCU

27A-S700A-S700PinNo.Port Name Function Name I/O Detail of Function1 P96/ANEX1 O2 P95/ANEX0 O3 P94 O4 P93 DEST1 I5 P92/TB2in DEST0 I6 P91/TB1in MOD1 I7

28A-S700A-S700PinNo.Port Name Function Name I/O Detail of Function56 P36 LED_TU O Input indicators (TUNER)57 P35 LED_CD O Input indicators (CD)58 P34

ABCDEFGH I J1234567A-S70029PHONESSPEAKERSC871,872JK801C121,122SPEAKER BRELAYSPEAKER ARELAYHP RELAYABRY101RY102RY103 R177,178POWERAMPC119,120C143C144+B

3A-S700A-S700 IMPEDANCE SELECTORWARNING:Do not change the setting of the IMPEDANCE SELECTOR switch when the unit power is switched on, as doing so ma

ABCDEFGH I J123456730A-S700CB501CB502FUNCTION (1) P.C.B. (Side A)FUNCTION (1) P.C.B. (Side A)TURTULSELECDRCDLSELEPHRPHL+15SELR-15SELLMTZ2CKEVCEEVDTEVD

ABCDEFGH I J1234567A-S70031IC508IC507IC506IC505IC502IC501FUNCTION (1) P.C.B. (Side B)114851632 1711530 16148514851485• Semiconductor LocationRef no. L

ABCDEFGH I J123456732A-S700CB611CB606W601CB607CB610CB609CB603CB602CB605IC601VRdnCLEDCDonMTMIVRupPLEDPDonMGOPERATION (1)(CB801)FUNCTION (2) P.C.B. (Sid

ABCDEFGH I J1234567A-S70033IC602FUNCTION (2) P.C.B. (Side B)3130808110015150POINT A XL601 (Pin 13 of IC602)A• Semiconductor LocationRef no. Location

ABCDEFGH I J123456734A-S700W801CB806W814CB804CB803CB808CB802CB807CB801VRGELERE-15+15VRupVRdn-15VRGEVIREVOREVOLEVIL+LBMAIN (1)(CB103)OPERATION (9)(CB80

ABCDEFGH I J1234567A-S70035IC802IC801OPERATION (1) P.C.B. (Side B)14851485• Semiconductor LocationRef no. LocationIC801 G3IC802 C4Q801 C5Q802 C4Q803 C

ABCDEFGH I J123456736A-S700W805AW802CB812IC806W803W804LOUDNESSVOLUMEINPUTPHONOPURE DIRECTindicatorINPUT indicatorsCD DIRECT AMPindicatorTUNERCDLINE1LI

ABCDEFGH I J1234567A-S70037OPERATION (2) P.C.B. (Side B) OPERATION (4) P.C.B. (Side B)OPERATION (3) P.C.B. (Side B)• Semiconductor LocationRef no. Loc

ABCDEFGH I J123456738A-S700W806CB813CB814W808CB815W811JK801CB811CB809REC OUTPHONESSPEAKERSON/STANDBYOFFPOWERPOWER indicatorOPERATION (5) P.C.B. (Side

ABCDEFGH I J1234567A-S70039OPERATION (5) P.C.B. (Side B)OPERATION (8) P.C.B. (Side B)OPERATION (6) P.C.B. (Side B) OPERATION (7) P.C.B. (Side B)OPERAT

4A-S700A-S700A-S700 (U model) REAR PANELSA-S700 (R model)A-S700 (T model)

ABCDEFGH I J123456740A-S700CB816CB805W805BL/RL/RPHONOCDINPUTOPERATION (10) P.C.B. (Side A)OPERATION (11) P.C.B. (Side A)PHLEPHRECDLECDRECDDL-15CDDR+15

ABCDEFGH I J1234567A-S70041IC804IC805IC803OPERATION (10) P.C.B. (Side B)1485OPERATION (11) P.C.B. (Side B)14851485• Semiconductor LocationRef no. Loca

ABCDEFGH I J123456742A-S700CB103IC101CB101W101W102CB106W104CB128CB102IC102CB132Q122A Q124A Q122C Q124CQ123A Q121A Q121C Q123CMAIN (1) P.C.B. MAIN (6)

ABCDEFGH I J1234567A-S70043CB257CB255CB256CB253CB254CB252IC252CB258IC251IC253CB271CB252CB294CB293W291BW291ACB291CB292W295AW295BCB281CB285CB282CB284CB2

A-S7004432161110+VSGNDVOUT1714841148281411235150318180100301LM61CIZOP275GSRNJM2068MD-TE2 NJU7313AM TC4013BPM30302MAP-A95FPS-812C55AY-T-GBD3841FS LB164

IC502IC501IC501IC501CB501 CB603CB502IC602CB609CB610CB602W601IC601CB611CB605CB606CB607IC505IC505IC506IC506IC507IC507IC508IC508A12345678910BCDEFGH I JKL

CB801CB802CB803CB808CB807CB809CB806W814W802W801CB804CB811CB812IC806W804W803W806CB814CB815CB813W808W811JK801CB816IC804IC805IC805IC804CB805IC802IC802IC8

CB283W103CB281CB128CB284CB285CB101CB102IC102IC101W101W102CB103W104CB106CB258CB252CB257CB253IC251IC253CB254CB255 CB256IC252CB272CB271CB293W291BW291ACB2

49A-S700A-S700ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:C.A.EL.CHP : CHIP ALUMI.ELECTROLYTIC CAPC.CE : CERAMIC CAPC.CE.ARRAY : CERAMIC CAP ARRAYC.CE

50A-S700A-S700Ref No. Part No. Description Remarks Markets部 品 名ランク*WQ040000 P.C.B. FUNCTIONＰＣＢ　ＦＵＮＣＴＩＯＮCB501 V7828400 SOCKET 17P SE TUC SERIES コネクターソ

5A-S700A-S700A-S700 (K model)A-S700 (A model)A-S700 (B model)

51A-S700A-S700Ref No. Part No. Description Remarks Markets部 品 名ランクR569-570 V8070900 R.MTL.FLM 100 Ω 1W 金属被膜抵抗 01ST601 V4040500 SCR.TERM M3 スクリュー／タ

52A-S700A-S700Ref No. Part No. Description Remarks Markets部 品 名ランクC871-872 WJ605000 C.MYLAR 0.01uF 50V J マイラーコン 01C873-874 UR238100 C.EL 100uF

53A-S700A-S700Ref No. Part No. Description Remarks Markets部 品 名ランクCB106 LB932070 CN.BS.PIN 7P ベースポスト 01CB128 V7826600 CN 16P TE TUC SERIES コネクタープラグ 0

54A-S700A-S700Ref No. Part No. Description Remarks Markets部 品 名ランクP.C.B. MAIN*C274 WJ603700 C.MYLAR 1000pF 50V マイラーコンC275 WJ605000 C.MYLAR 0.01uF

A-S70055Carbon Resistors❊ : Not availableValue 1/4W Type Part No. 1/6W Type Part No.1.0 ΩHJ35 3100HF85 31001.8 ΩHJ35 3180 ✻2.2 ΩHJ35 3220HF85 32203.3

ABCDEFGH I J123456756A-S700200-1112-1111-1120120128120120120120103133129127120129151129129120181123123123118124126126129122110125137137131136129110129

A-S70057* 5 WQ040000 P.C.B. ASS'Y FUNCTION ＰＣＢ　ＦＵＮＣＴＩＯＮ* 6 WQ039100 P.C.B. ASS'Y MAIN J ＰＣＢ　ＭＡＩＮ* 6 WQ039200 P.C.B. ASS'Y MAIN U ＰＣＢ　ＭＡ

ABCDEFGH I J123456758A-S700* 1-1 WP080500 FRONT PANEL BL フロントパネル* 1-1 WP080400 FRONT PANEL SI フロントパネル* 1-4 WP080800 SUPPORT LENS A サポートレンズＡ* 1-5 WP081

ABCDEFGH I J1234567A-S70059# 3-1-1A iX615750 TRANSISTOR 2SA1694 O,P,Y Q121A, Q123A トランジスタ 05# 3-1-1C iX615760 TRANSISTOR 2SC4467 O,P,Y Q121C, Q123C トラ

ABCDEFGH I J123456760A-S700GNDP50P51XT1XT2P52P00P01P02P031234C2 X13.84MHzC3567891020K32VDDVDD+47uF/10VC40.1uF U1 SC73P1601C1K24 K16 K48R13.3 ohmsIR-LE

6A-S700A-S700A-S700 (L model)A-S700 (G model)A-S700 (J model)

61A-S700A-S700MEMO

A-S700

7A-S700A-S700 REMOTE CONTROL PANELRAS7 SPECIFICATIONS / 参考仕様 Audio Section / オーディオ部Minimum RMS Output Power (Power Amp. Section) /定格出力（パワーアンプ部） (2

8A-S700A-S700• DIMENSIONS / 寸法図Unit: mm (inch)単位：mm（インチ） General / 総合Power Supply / 電源電圧 U model .....

9A-S700A-S700Top viewFront viewPower TransformerMAIN (2) P.C.B.MAIN (3) P.C.B.MAIN (8) P.C.B.MAIN (5) P.C.B. (R, L models)MAIN (4) P.C.B.MAIN (7) P.C.