Download Yamaha A-S700 BL Service manual
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INTEGRATED AMPLIFIER A-S700 SERVICE MANUAL 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. A-S700 ■ CONTENTS TO SERVICE PERSONNEL ............................................2 IMPEDANCE SELECTOR ...............................................3 FRONT PANEL ...............................................................3 REAR PANELS ...........................................................4–6 REMOTE CONTROL PANEL ..........................................7 SPECIFICATIONS / 参考仕様 .....................................7–8 INTERNAL VIEW ............................................................9 SERVICE PRECAUTIONS / サービス時の注意事項 ..... 10 DISASSEMBLY PROCEDURES / 分解手順 ........... 10–16 AMP ADJUSTMENT / アンプ部調整 ....................... 17–18 10111 7 SELF-DIAGNOSTIC FUNCTION / ダイアグ(自己診断機能)....................................... 19–25 IC DATA ...................................................................26–28 BLOCK DIAGRAM ........................................................29 PRINTED CIRCUIT BOARDS .................................30–43 PIN CONNECTION DIAGRAMS ...................................44 SCHEMATIC DIAGRAMS .......................................45–47 REPLACEMENT PARTS LIST ................................49–59 REMOTE CONTROL .....................................................60 Copyright © 2008 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. P.O.Box 1, Hamamatsu, Japan animate '08.10 A-S700 ■ 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. WALL OUTLET 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. 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. “CAUTION” “F251, F252: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE.” CAUTION F251, F252: REPLACE WITH SAME TYPE 8A, 125V FUSE. ATTENTION F251, F252: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 8A, 125V. 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. A-S700 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. 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。 Among some types of lead free solder currently available, it is recommended to use one of the following types for the repair work. 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 (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. 2 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。 A-S700 ■ IMPEDANCE SELECTOR WARNING: Do not change the setting of the IMPEDANCE SELECTOR switch when the unit power is switched on, as doing so may damage the unit. IMPEDANCE SELECTOR ■ FRONT PANEL A-S700 (U, R, T, K, A, B, G, L, J models) A-S700 3 A-S700 ■ REAR PANELS A-S700 (U model) A-S700 A-S700 (R model) A-S700 (T model) 4 A-S700 A-S700 (K model) A-S700 (A model) A-S700 A-S700 (B model) 5 A-S700 A-S700 (G model) A-S700 A-S700 (L model) A-S700 (J model) 6 A-S700 ■ REMOTE CONTROL PANEL RAS7 ■ 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)(20 Hz to 20 kHz) 8 ohms, 0.019 % THD ................................... 90 W + 90 W 6 ohms, 0.03 % THD ................................. 105 W + 105 W Dynamic Power / ダイナミックパワー (IHF) 8/6/4/2 ohms ...........................................135/160/200/240 W Maximum Output Power / 実用最大出力 (1 kHz) R, L, J models (10 % THD, 8/6 ohms, JEITA) ... 140/160 W B, G models (0.7 % THD, 4 ohms) ........................... 160 W IEC Output Power [B, G models] (1 kHz, 0.019 % THD, 8 ohms) ................................. 105 W Power Band Width / パワーバンド (0.03 % THD, 50 W, 8 ohms) ....................10 Hz to 50 kHz Damping Factor / ダンピングファクター 1 kHz, 8 ohms ...................................................240 or more Maximum Input Signal / 最大許容入力 (1 kHz, 0.019 % THD) PHONO ....................................................................... 70 mV CD, etc. ........................................................................ 2.2 V Frequency Response / 周波数特性 CD, etc. (20 Hz to 20 kHz) ................................. 0 ±0.5 dB CD DIRECT AMP ON (10 Hz to 100 kHz) .......... 0 ±1.0 dB RIAA Equalization Deviation / RIAA 偏差 PHONO ................................................................. 0 ±0.5 dB Total Harmonic Distortion / 全高調波歪率 (20 Hz to 20 kHz) PHONO to OUT (REC) (3 V) .......................0.008 % or less CD, etc. to SP OUT (50 W, 8 ohms) ..........0.012 % or less Signal to Noise Ratio / 信号対雑音比 (IHF-A Network) PHONO (5 mV input shorted) .......................87 dB or more CD DIRECT AMP (200 mV input shorted) .......110 dB or more Residual Noise / 残留ノイズ (IHF-A Network) CD DIRECT AMP ON .................................................. 30 μV PURE DIRECT ON ..................................................... 110 μV Gain Tracking Error / GAIN トラッキングエラー (0 to -60 dB) .................................................... 2 dB or less ■ Control Section / コントロール部 A-S700 Input Sensitivity/Input Impedance / 入力感度/入力インピーダンス PHONO .................................................... 3.0 mV/47 k-ohms CD, etc. .................................................. 200 mV/47 k-ohms Output Level/Output Impedance / 出力電圧/インピーダンス REC level ............................................... 200 mV/1.2 k-ohms RAS7 WQ06690 Headphone Output/Impedance / ヘッドホン出力/インピーダンス (Input 1 kHz, 200 mV, 8 ohms, 0.015 % THD) CD, etc. ..................................................... 0.47 V/470 ohms Channel Separation / チャンネルセパレーション (5.1 k-ohms input shorted) CD, etc. ....................................................65/50 dB or more Tone Control Characteristics / トーンコントロール特性 BASS Boost/Cut (50 Hz) .................................................. ±10 dB Turnover frequency ................................................. 350 Hz TREBLE Boost/Cut (20 kHz) ................................................ ±10 dB Turnover frequency ................................................ 3.5 kHz Continuous Loudness Control / コンティニュアスラウドネスコントロール Attenuation / 最大補正率 (1 kHz) .............................. -30 dB 7 A-S700 ■ General / 総合 Power Supply / 電源電圧 U model ........................................................... AC 120 V, 60 Hz R model ........................... AC 110/120/220/230-240 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 models ..................................................... AC 230 V, 50 Hz L models ....................................... AC 220/230-240 V, 50/60 Hz J model ....................................................... AC 100 V, 50/60 Hz Power Consumption / 消費電力 U model ........................................................ 260 W, 360 VA R, T, K, A, B, G, L models ........................................ 260 W J model ........................................................................ 205 W Standby Power Consumption / 待機時消費電力 ...................................................................................... 0.1 W Maximum Power Consumption [R model] 6 ohms, 1 kHz, 10 % THD ........................................ 650 W AC Outlets / AC アウトレット 2 switched outlets U model .............................100 W max. total / 0.8 A max. total R model ...............................50 W max. total / 0.2 A max. total T, G models .......................100 W max. total / 0.4 A max. total L, J models ....................................................100 W max. total 1 switched outlet A, B models ...................................... 100 W max. / 0.4 A max. Dimensions (W x H x D) / 寸法(幅 × 高さ × 奥行き) ........... 435 x 151 x 382 mm (17-1/8" x 5-15/16" x 15-1/16") Weight / 質量 .................................................................... 10.9 kg (24 lbs.) Finish / 仕上げ Black color ........................ U, R, T, K, A, B, G, L, J models Silver color ........................ U, R, T, K, A, B, G, L, J models Accessories / 付属品 Remote control ................................................................ x 1 Battery (R6, AA, UM-3) ................................................... x 2 Power cable (2 m) .......................................................... x 1 * Specifications are subject to change without notice due to product improvements. ※ 参考仕様および外観は予告なく変更されることがあります。 U ... U.S.A. and Canadian models R .....................General model T..................... Chinese model K ...................... Korean model A .................Australian model B .......................British model G ..................European model L..................Singapore model J ................... Japanese model 395 (15-9/16") 435 (17-1/8") 8 382 (15-1/16") 339.5 (13-3/8") 151 (5-15/16") 21 (15/16") 130 (5-1/8") 20.5 (13/16") A-S700 290 (11-7/16") 22 (7/8") • DIMENSIONS / 寸法図 Unit: mm (inch) 単位:mm(インチ) A-S700 ■ INTERNAL VIEW Top view 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 12 10 11 12 13 14 15 16 17 18 Front view 19 20 17 18 16 15 14 13 21 22 19 20 21 Power Transformer MAIN (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.B. MAIN (1) P.C.B. MAIN (6) P.C.B. FUNCTION (1) P.C.B. OPERATION (10) P.C.B. FUNCTION (2) P.C.B. OPERATION (3) P.C.B. OPERATION (4) P.C.B. OPERATION (2) P.C.B. OPERATION (11) P.C.B. OPERATION (5) P.C.B. OPERATION (6) P.C.B. OPERATION (7) P.C.B. OPERATION (8) P.C.B. OPERATION (1) P.C.B. OPERATION (9) P.C.B. 22 A-S700 9 A-S700 ■ SERVICE PRECAUTIONS / サービス時の注意事項 Safety measures 安全対策 • 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. ・ 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。 • Note that positions 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, perform discharge by connecting a discharge resistor (5k-ohms/10W) between terminals at following positions. The time required for discharging is about 30 seconds. ・ 下記箇所には電源を 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(5 k Ω /10 W)を下記箇所の 端子間に接続して放電してください。放電所用時間は 約 30 秒間です。 1. MAIN(1)P.C.B. の C141 2. MAIN(1)P.C.B. の C142 1. C141 on MAIN (1) P.C.B.. PRINTED CIRCUIT BOARDS:MAIN(1)P.C.B. を参照 してください。 2. C142 on MAIN (1) P.C.B.. Refer to “PRINTED CIRCUIT BOARDS: MAIN (1) P.C.B.”. ■ DISASSEMBLY PROCEDURES / 分解手順 (Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet. (番号順に部品を取り外してください。) AC 電源コンセントから、電源コードを抜いてください。 1. Removal of Top Cover a. Remove 4 screws ( ), 4 screws ( (Fig. 1) b. Remove the top cover. (Fig. 1) 1. トップカバーの外し方 ) and screw ( ). 2. Removal of Front Panel * A-S700 10 のネジ 4 本、 のネジ 4 本、 のネジ 1 本を外し ます。(Fig. 1) b. トップカバーを取り外します。(Fig. 1) 2. フロントパネルの外し方 Prepare an Allen hex socket screwdriver (2 mm) for removal of knob unit. a. Remove screw ( ), screw ( ) and then remove the frame top. (Fig. 1) b. Loosen lock set screw to remove the knob VOL unit. (Fig. 1) c. Loosen lock set screw to remove the knob SEL unit. (Fig. 1) d. Remove 4 knob TCs. (Fig. 1) e. Remove 2 knob SP13s. (Fig. 1) f. Remove 7 screws ( ). (Fig. 1) g. Remove the front panel forward gradually using care not to cause damage the keys. (Fig. 1) * a. When installing the knob VOL/SEL unit, it is necessary to position them as specified. (Refer to “When installing the knob VOL/SEL unit”.) ※ ノブユニットを取り外す場合、6 角穴用ドライバー (2 mm)を準備します。 a. のネジ 1 本、 のネジ 1 本を外し、フレーム TOP を取り外します。(Fig. 1) b. 止めネジを緩め、ノブ VOL ユニットを取り外します。 (Fig. 1) c. 止めネジを緩め、ノブ SEL ユニットを取り外します。 (Fig. 1) d. ノブ TC 4 個を取り外します。(Fig. 1) e. ノブ SP13 2 個を取り外します。(Fig. 1) f. のネジ 7 本を外します。(Fig. 1) g. 各キーに傷がつかないようフロントパネルを前方へ ゆっくり取り外します。(Fig. 1) ※ ノブ VOL/SEL ユニットを取り付ける場合、決められ た位置に合わせる必要があります。( ノブ VOL/SEL ユ ニットを取り付ける場合 を参照) A-S700 Top cover トップカバー Frame top フレームTOP A-S700 Knob SP13 ノブSP13 Front panel フロントパネル Knob TC ノブTC Knob SEL unit ノブSELユニット Lock set screw 止めネジ 2mm Knob VOL unit ノブVOLユニット An Allen hex socket screwdriver 6角穴用ドライバー Fig. 1 11 A-S700 • When installing the knob VOL unit: a. Turn the VOLUME (VR805) counterclockwise fully. (Fig. 2) b. Match the slit in the knob VOL unit with the “VOLUME MIN” position and install it in that state. (Fig. 2) * At this time, do not tighten the lock set screw. c. Keep about 0.5 mm to 0.75 mm clearance from the front panel to knob VOL unit. (Fig. 2) d. Tighten the lock set screw. (Fig. 2) e. After installation, perform following checks. • このとき、まだ止めネジは締めません。 ・ ノブ VOL ユニットを左右に回し、フロントパネル に擦っていないか? ・ ノブ VOL ユニットを右いっぱいに回し、ノブ VOL ユニットのスリットが VOLUME MAX の位置に合 うか? ・ ノブ VOL ユニットを左いっぱいに回し、ノブ VOL ユニットのスリットが VOLUME MIN の位置に合う か? • When installing the knob SEL unit: a. Turn the INPUT (SW803) so that the cut in it comes at the top. (Fig. 2) b. Install the knob SEL unit with its lock set screw positioned at the top. (Fig. 2) ・ ノブ SEL ユニットを取り付ける場合: a. INPUT(SW803)のカット位置が上になるよう回しま す。(Fig. 2) b. ノブ SEL ユニットの止めネジ位置を上にして取り付け ます。(Fig. 2) • * At this time, do not tighten the lock set screw. c. Keep about 0.5 mm to 0.75 mm clearance from the front panel to knob SEL unit. (Fig. 2) d. Match the lock set screw position with the cut in INPUT (SW803) and tighten the lock set screw. e. After installation, perform following checks. • A-S700 * c. フロントパネルから 0.5 ∼ 0.75 mm 程度隙間をあけま す。(Fig. 2) d. 止めネジを締めます。(Fig. 2) e. 取り付け後、次の動作を確認します。 Turn the knob VOL unit both directions to check that it does not rub against the front panel. Turn the knob VOL unit clockwise fully and check that the slit in it matches with the VOLUME MAX position. Turn the knob VOL unit counterclockwise fully and check that the slit in it matches with the VOLUME MIN position. • 12 ・ 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) Turn the knob SEL unit in both directions to check that it does not rub against the front panel. * このとき、止めネジは締めません。 c. フロントパネルから 0.5 ∼ 0.75 mm 程度隙間をあけま す。(Fig. 2) d. INPUT(SW803)のカット位置に止めネジ位置を合わ せ、止めネジを締めます。(Fig. 2) e. 取り付け後、次の動作を確認します。 ・ ノブ SEL ユニットを左右に回し、フロントパネル に擦っていないか? A-S700 0.5–0.75mm Front panel フロントパネル Lock set screw 止めネジ Cut カット位置 SW803 VR805 Lock set screw 止めネジ VOLUME MIN. VOLUME MAX. A-S700 Slit スリット Knob SEL unit ノブSELユニット Knob VOL unit ノブVOLユニット Fig. 2 13 A-S700 3. Removal of Sub-chassis Unit 3. サブシャーシユニットの外し方 a. Remove 2 screws ( ). (Fig. 3) b. Remove CB283,CB606,CB609,CB611and CB802. (Fig. 3) c. Remove the sub-chassis unit. (Fig. 3) a. のネジ 2 本を外します。(Fig. 3) b. CB283、CB606、CB609、CB611、CB802 を外します。 (Fig. 3) c. サブシャーシユニットを取り外します。(Fig. 3) CB283 MAIN (4) P.C.B. CB609 CB606 A-S700 CB611 Sub-chassis unit サブシャーシユニット CB802 FUNCTION (2) P.C.B. OPERATION (1) P.C.B. Fig. 3 14 A-S700 When checking the P.C.B.s: P.C.B. をチェックする場合には: • ・ 本機の上にゴムシートと布を敷き、その上に P.C.B. を 裏返しに置いてチェックします。(Fig. 4) ・ 外したケーブル(コネクター)をすべて接続します。 ・ サブシャーシユニットのアースをアース線等で シャーシに接続してください。(Fig. 4) • • Put the rubber sheet and cloth over this unit. Then place the P.C.B.s upside down on the cloth and check it. (Fig. 4) Reconnect all cables (connectors) that have been disconnected. Connect the ground point of the sub–chassis unit to the chassis with a ground lead or the like. (Fig. 4) A-S700 Ground lead アース線 Chassis シャーシ Sub-chassis unit サブシャーシユニット Rubber sheet and cloth ゴムシートと布 Fig. 4 15 A-S700 When checking the P.C.B.s: P.C.B. をチェックする場合には: • ・ ゴムシートと布を敷き、 本機を上下反転します。 (Fig. 5) ・ のネジ 6 本を外しシャーシカバーを取り外します。 (Fig. 5) • Spread the rubber sheet and the cloth. Then place this unit on the cloth upside down. (Fig. 5) Remove 6 screws ( ) and then remove the chassis cover. (Fig. 5) Chassis cover シャーシカバー A-S700 MAIN (1) P.C.B. Rubber sheet and cloth ゴムシートと布 Fig. 5 16 A-S700 ■ AMP ADJUSTMENT / アンプ部調整 ● CONFIRMATION OF IDLING CURRENT ● アイドリング電流の確認 1. Right after power is turned on, confirm that the voltage across the terminals of R111–R135 (L ch) and R112–R136 (R ch) are between 0.1 mV to 10.0 mV. 2. If measured voltage exceeds 10.0 mV, open (cut off) R175 (L ch), R176 (R ch) and reconfirm the voltage. 1. 電源投入直後、R111 ∼ 135(L ch) 、R112 ∼ 136(R ch)の端子間電圧を測定し、0.1 mV から 10.0 mV の間であることを確認してください。 2. 電圧が 10.0 mV を超えている場合は、R175(L ch) 、 R176(R ch)をカットし、電圧を再確認してくださ い。 Attention If the measured voltage exceeds 10.0 mV after repairing the power amplifier, check other parts again for any possible defect before cutting the resistor. 3. Confirm that the voltage is between 0.20 mV and 15.0 mV after 60 minutes. 注意 パワーアンプ修理後に 10.0 mV を超えている場合 は、抵抗をカットする前に他に故障箇所が無いか もう一度調べてください。 3. 60 分後、電圧が 0.2 mV ∼ 15.0 mV であることを 確認してください。 0.1mV–10mV (L ch) 0.1mV–10mV (R ch) Cut off R135 R136 R111 R175 (L ch) R176 (R ch) R112 A-S700 R135 R175 R111 R136 R176 R112 17 A-S700 SCHEMATIC DIAGRAM MAIN (1) R135 L ch R175 0.1 mV – 10 mV Cut off A-S700 R111 R112 R176 R ch Cut off R136 18 0.1 mV – 10 mV A-S700 ■ SELF-DIAGNOSTIC FUNCTION / ダイアグ(自己診断機能) ● Indication of Protection Information ● プロテクション情報の表示 When the power to this unit is turned on and the power indicator is flashing, the normal operation is not available because the protection function is at work. In that case, the protection information can be indicated by following procedures. However, the power supply relay (RY251 of MAIN P.C.B.) does not turn on. 本機に電源を投入して POWER インジケーターが点滅 表示している場合、プロテクションが動作している ため正常動作させることができません。 このような場合、下記の操作方法によりプロテクショ ン情報を表示することができます。 ただし、電源リレー(MAIN P.C.B. の RY251)はオン しません。 • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power. * この操作方法は、電源を切った後 30 秒以内に行っ てください。 1. Press “POWER”, “CD DIRECT AMP”, and “PURE DIRECT” switches to turn them off respectively. (Fig. 1) 1. POWER スイッチ、 CD DIRECT AMP スイッ チ、 PURE DIRECT スイッチを押し、それぞ れ OFF にします。(Fig. 1) 2. Repeat pressing “CD DIRECT AMP” switch to turn it ON/OFF twice. (Fig. 1) 2. CD DIRECT AMP スイッチを2回 ON/OFF し ます。(Fig. 1) 3. Repeat pressing “PURE DIRECT” switch to turn it ON/OFF once. (Fig. 1) 3. PURE DIRECT スイッチを1回 ON/OFF しま す。(Fig. 1) 4. Press “POWER” switch inward to the ON/ STANDBY position. (Fig. 1) The POWER indicator flashes. (Fig. 2) 4. POWER スイッチを押し、ON/STANDBY にし ます。(Fig. 1) POWER インジケーターが点滅します。 (Fig. 2) 2. “CD DIRECT AMP” switch 1 2 OFF ON OFF ON 3. “PURE DIRECT” switch 1 OFF OFF ON OFF A-S700 POWER indicator 4. “POWER” switch OFF ON/ STANDBY Fig. 1 19 A-S700 • List of protection information ・ プロテクション情報一覧 The protection information is indicated by the flashing pattern of the POWER indicator. (Fig. 2) Types of protection function / プロテクションの種類 POWER インジケーターの点滅パターンにより、 プロテクション情報を表示します。(Fig. 2) POWER indicator flashing pattern / POWERインジケーターの点滅パターン PS protection / 電源電圧プロテクション Flashing 2 / 点滅 2 500mS 500mS 500mS AMP DC protection L/R ch / アンプDC電圧 プロテクションL/Rch Flashing 4 / 点滅 4 500mS 500mS 500mS 500mS I protection L/R ch / 過電流プロテクションL/Rch Flashing 6 / 点滅 6 500mS 500mS 500mS TMP protection L/R ch / 温度プロテクションL/Rch Flashing 7 / 点滅 7 500mS 500mS 500mS Normal (no protection function) / 正常(プロテクション無し) Lit / 点灯 1000mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS : Lit / 点灯 : Off / 消灯 1000mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 500mS 1000mS 500mS 500mS 500mS 500mS 1000mS 1000mS Continuous Fig. 2 • Details of Protection Information a. PS (Power Supply) protection Cause: The voltage in the power supply section is abnormal. Normal value: 1.12 to 3.04V Detection port: PRV (90 pin of microprocessor IC602 of FUNCTION P.C.B.) Detected at: A-S700 20 a. 電源電圧プロテクション 原因: 電源部の電圧が異常。 正常値: 1.12 ∼ 3.04V 検出ポート: PRV(FUNCTION P.C.B. のマイコ ン IC602 の 90 ピン) 検出先: ACL、ACL2、+15、-15、+5S ACL, ACL2, +15, -15, +5S b. Amplifier DC voltage protection L/Rch Cause: ・ プロテクション情報の詳細 Abnormal DC voltage of amplifier output L/R b. アンプ DC 電圧プロテクション L/Rch 原因: アンプ出力 L/R の DC 電圧が異 常。 Normal value: 0.96 to 2.57V 正常値: 0.96 ∼ 2.57V Detection port: PRD (91 pin of microprocessor IC602 of FUNCTION P.C.B.) 検出ポート: PRD(FUNCTION P.C.B. のマイコ ン IC602 の 91 ピン) Detected at: 検出先: PRDC (Amplifier output L/Rch of MAIN P.C.B.) PRDC(MAIN P.C.B. のアンプ出 力 L/Rch) A-S700 c. I protection L/Rch Cause: Excess current flow into amplifier. Speaker terminal shorted. (*) c. 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。(※) Normal value: LOW (0V) 正常値: LOW(0V) Detection port: PRI (80 pin of microprocessor IC602 of FUNCTION P.C.B.) 検出ポート: PRI(FUNCTION P.C.B. のマイコ ン IC602 の 80 ピン) Detected at: 検出先: * PRI (Amplifier output L/Rch of MAIN P.C.B.) If the protection function works due to shortage at the speaker terminal, the power turns off at the excess current protection L/Rch. However, pressing the “POWER” switch for OFF/ON causes following operation to take place and the power to turn on. 1. All INPUT indicators flash until the power is turned on. 2. The VOLUME knob rotates counterclockwise automatically and stops at the 0 (MIN.) position. PRI(MAIN P.C.B. のアンプ出力 L/Rch) ※ スピーカー端子のショートでプロテクショ ンが働いた場合、過電流プロテクション L/ Rch で電源を切ります。ただし "POWER" スイッチを OFF/ON すると下記の動作を行 い、電源が入ります。 1. すべての INPUT インジケーターが、電 源が入るまで点滅します。 2. VOLUME ノブが自動で反時計周りに回 転をして、0(MIN.)の位置で停止します。 3. 数秒後、電源が入ります。 3. The power turns on after some seconds. d. TMP protection L/Rch Cause: Abnormal temperature of heat sink. Normal value: 0 to 1.74V Detection port: THML (92 pin of microprocessor IC602 of FUNCTION P.C.B.) THMR (93 pin of microprocessor IC602 of FUNCTION P.C.B.) Detected at: 原因: ヒートシンクの温度が異常。 正常値: 0 ∼ 1.74V 検出ポート: THML(FUNCTION P.C.B. のマイ コン IC602 の 92 ピン) THMR(FUNCTION P.C.B. のマイ コン IC602 の 93 ピン) 検出先: PRDL(MAIN P.C.B. のヒートシ ンク Lch 温度検出 IC101) PRDR(MAIN P.C.B. のヒートシ ンク Rch 温度検出 IC102) A-S700 PRDL (Heat sink Lch temperature detection IC101 of MAIN P.C.B.) d. 温度プロテクション L/Rch PRDR (Heat sink Rch temperature detection IC202 of MAIN P.C.B.) 21 A-S700 ● Starting in the Protection Cancel mode ● プロテクション解除モードでの起動 If the protection function works and causes hindrance to trouble shoot, cancel the protection function as described below, and it will be possible to turn on the power. プロテクションが動作することにより、故障箇所の診断 に支障をきたすような場合は、次の方法によりプロテク ションを解除した状態で起動することができます。 • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power. * この操作方法は、電源を切った後 30 秒以内に行っ てください。 1. Press “POWER”, “CD DIRECT AMP”, and “PURE DIRECT” switches to turn them off respectively. (Fig. 3) 1. POWER スイッチ、 CD DIRECT AMP スイッ チ、 PURE DIRECT スイッチを押し、それぞ れ OFF にします。(Fig. 3) 2. Repeat pressing “CD DIRECT AMP” switch to turn it ON/OFF twice. (Fig. 3) 2. CD DIRECT AMP スイッチを2回 ON/OFF し ます。(Fig. 3) 3. Repeat pressing “PURE DIRECT” switch to turn it ON/OFF once. (Fig. 3) 3. PURE DIRECT スイッチを1回 ON/OFF しま す。(Fig. 3) 4. Press “POWER” switch inward to the ON/ STANDBY position. (Fig. 3) 4. POWER スイッチを押し、ON/STANDBY にし ます。(Fig. 3) “POWER” indicator flashes. (Fig. 3) POWER インジケーターが点滅します。 (Fig. 3) 5. Press “PURE DIRECT” switch to turn it on. (Fig. 3) 5. After about 3 seconds, the power relay (RY251 of MAIN P.C.B.) turns on. (Fig. 3) PURE DIRECT スイッチを押し、ON にします。 (Fig. 3) 約 3 秒後、電源リレー(MAIN P.C.B. の RY251) がオンします。 2. "CD DIRECT AMP" switch 1 2 ON OFF ON OFF ON OFF OFF A-S700 OFF 3. "PURE DIRECT" switch 1 POWER indicator 4. "POWER" switch OFF 5. "PURE DIRECT" switch ON/ STANDBY OFF ON Fig. 3 22 CAUTION! 注意! • ・ プロテクション解除モードでは、危険な状態でもプ ロテクションが作動しないために本機を破壊する可 能性があります。このモードを使用する場合は十分 注意してください。 Using this product with the protection function disabled may cause damage to itself. Use special care when using this mode. A-S700 Note) 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。 Applying the power to this unit without correcting the abnormality can be dangerous and cause additional circuit damage. To avoid this, if protection function has been activated the number of times which is set beforehand, the power will not turn on even when the “POWER” key is pressed. a. PS (Power Supply) protection: If protection function has been activated 3 times continuously, the power will not turn on. b. Amplifier DC voltage protection L/Rch: If protection function has been activated 3 times continuously, the power will not turn on. c. I protection L/Rch: If protection function has been activated 1 time, the power will not turn on. However, the power turns on when the protection function worked due to short at the speaker terminal. a. 電源電圧プロテクション: 連続 3 回動作後、電源が入りません。 b. アンプ DC 電圧プロテクション L/Rch: 連続 3 回動作後、電源が入りません。 c. 過電流プロテクション L/Rch: 1 回動作後、電源が入りません。 スピーカー端子のショートでプロテクションが働 いた場合は、電源が入ります。 d. 温度プロテクション L/Rch: 何回動作しても、電源が入ります。 d. TMP protection L/Rch: The power turns on no matter how many times the protection function has worked. 注意! • The output transistors in each amplifier channel should be checked for damage before applying power of this unit. • Amplifier current should be monitored by measuring DC voltage across the emitter resistors for each channel. • Set this unit once to the “factory reset” state before turning on the power again. ・ 本機の電源をいれる前に、各アンプのチャンネル内 の出力トランジスタに損傷がないかチェックしてく ださい。 ・ アンプの電流は、各チャンネルのエミッターの抵抗 器間電圧を測定することによりモニターしてくださ い。 ・ 再度電源を入れる場合、一度本機を ファクトリー リセット してください。(詳細は、ダイアグの " ファ クトリーリセット " 参照) A-S700 Note) (For more information, refer to “Factory Reset”of SELF-DIAGNOSTIC FUNCTION.) 23 A-S700 ● Indication of Firmware Version ● ファームウェアバージョンの表示 The firmware version of the microprocessor is indicated in the binary code (BCD) using INPUT indicates. マイコンのファームウェアバージョンを INPUT イン ジケーターを使って 2 進数(BCD)で表示します。 • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power. * この操作方法は、電源を切った後 30 秒以内に行っ てください。 1. POWER スイッチ、 CD DIRECT AMP スイッ チ、 PURE DIRECT スイッチを押し、それぞ れ OFF にします。(Fig. 4) 2. CD DIRECT AMP スイッチの ON/OFF を3回 繰り返します。(Fig. 4) 3. PURE DIRECT スイッチの ON/OFF を1回行い ます。(Fig. 4) 4. POWER スイッチを押し、ON/STANDBY にし ます。(Fig. 4) INPUT インジケーターが点灯します。(Fig. 4) 1. Press “POWER”, “CD DIRECT AMP”, and “PURE DIRECT” switches to turn them off respectively. (Fig. 4) 2. Repeat pressing “CD DIRECT AMP” switch to turn it ON/OFF 3 times. (Fig. 4) 3. Repeat pressing “PURE DIRECT” switch to turn it ON/OFF once. (Fig. 4) 4. Press “POWER” switch inward to the ON/ STANDBY position. (Fig. 4) INPUT indicators lights up. (Fig. 4) 2. "CD DIRECT AMP" switch 1 2 ON OFF ON OFF ON OFF ON OFF OFF A-S700 OFF 3. "PURE DIRECT" switch 1 3 INPUT indicators 4. "POWER" switch OFF ON/ STANDBY Example) When the firmware version is [V0007] 例) ファームウェアバージョンが[V0007]の場合 Firmware version / ファームウェアバージョン INPUT indicators / INPUT インジケーター LINE 3 (25 = 32) 0 0 0 24 Binary number (BCD) [Lit: 1, Off: 0] / 2 進数(BCD)[点灯:1、消灯:0] LINE 2 LINE 1 CD TUNER (24 = 16) (23 = 8) (22 = 4) (21 = 2) 0 0 1 1 0 0 1 1 0 1 0 0 • • • Fig. 4 PHONO (20 = 1) 0 1 0 Decimal number / 10 進数 V0006 V0007 V0008 (4 + 2 = 6) (4 + 2 + 1 = 7) (8) • • • A-S700 ● Factory Reset ● ファクトリーリセット Return below settings to those when shipped from the factory. 下記の設定を工場出荷時に戻します。 ( )内は工場出荷時 In the parentheses ( ) are settings when shipped from the factory. a. Power (OFF) b. INPUT (CD) c. Protection history (None) d. Number of times when protection is detected (0) e. Indication of speaker short detected (None) a. b. c. d. e. • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power. * この操作方法は、電源を切った後 30 秒以内に行っ てください。 電源 (OFF) INPUT(CD) プロテクション履歴(無し) プロテクション検出回数(0 回) スピーカーショート検出表示(無し) 1. Press “POWER”, “CD DIRECT AMP”, and “PURE DIRECT” switches to turn them off respectively. (Fig. 5) 1. POWER スイッチ、 CD DIRECT AMP スイッ チ、 PURE DIRECT スイッチを押し、それぞ れ OFF にします。(Fig. 5) 2. Repeat pressing “CD DIRECT AMP” switch to turn it ON/OFF 4 times. (Fig. 5) 2. CD DIRECT AMP スイッチを4回 ON/OFF し ます。(Fig. 5) 3. Repeat pressing “PURE DIRECT” switch to turn it ON/OFF once. (Fig. 5) 3. PURE DIRECT スイッチを1回 ON/OFF しま す。(Fig. 5) 4. Press “POWER” switch inward to the ON/ STANDBY position. (Fig. 5) 4. POWER スイッチを押し、ON/STANDBY にし ます。(Fig. 5) 工場出荷時に戻ると、INPUT インジケーター の CD が点灯します。(Fig. 5) 数秒後、本機の電源リレーがオンし、通常動 作に戻ります。 When settings return to those when shipped from the factory, “CD” of the INPUT indicators lights up. (Fig. 5) After some seconds, the power relay of this unit turns on and the normal operation is restored. 2. "CD DIRECT AMP" switch 2 1 ON OFF ON OFF ON OFF ON OFF OFF ON A-S700 OFF 3. "PURE DIRECT" switch 1 4 3 OFF INPUT indicators 4. "POWER" switch OFF ON/ STANDBY Fig. 5 25 A-S700 ■ IC DATA IC602: M30302MAP-A95FP (FUNCTION P.C.B.) Single-chip 16-bit CMOS microprocessor 8 8 Port P1 Port P2 Port P3 8 8 Port P4 Port P5 Port P6 (10-bits X 18-channels) X IN-XOUT XCIN-XCOUT Output (timer A): 3 (3-channels) M16C/60 series 16-bit Microprocessor core Memory (15-bits) DMAC SB R0L R1L (2-channels) ISP 53 P41 54 P40 55 P37 56 P36 57 P35 58 P34 59 P33 60 P32 Multiplier 61 P31 62 Vcc2 63 P30 64 Vss 65 P27 FLG 66 P26 67 P25 68 P24 69 P23 70 P22 71 P21 72 P20 73 P17 74 P16 75 P15 76 P14 77 P13 78 P12 79 P11 PC 50 /TMU 82 49 SDTP /BLK 83 48 SCKP ISA 84 47 CEP ISB 85 46 /CE 86 45 SDTR 87 44 SDRR 88 43 SCKR REC 89 42 CER PRV 90 41 /EMP PRD 91 40 THML 92 39 CKRZ THMR 93 38 DTRZ SPAB 94 37 CKIS KEY1 95 36 CEIS Avss 96 35 DTIS DEST 97 34 BSY / CLKF 31 DTEV DTXM 30 /ICXM 28 DRXM 29 XMPWR 27 26 /Z2MT 25 /POMT 24 23 22 21 PDET 20 LED_SP 19 NMI 17 /POMT 18 Vcc 16 Xin 15 Vss 14 MCU 9 BYTE 8 MOD0 7 MOD1 6 DEST0 5 DEST1 4 3 2 1 Xout 13 32 CEEV / TXDF 11 Avcc 99 /RESET 12 33 CKEV / RXDF /CEEEP 10 Vref 98 100 26 8 Port P10 INTB A0 A1 A1 FB FB 80 P10 RAM USP R2 R3 8 R0H R1H Port P9 ROM Watchdog timer A-S700 Port P8_5 CRC arithmetic circuit (CCITT) (Polynomial : X 16+X12+X5+1) 7 Port P8 UART or clock synchronous serial I/O Input (timer B): 3 /PSV 81 8 System clock generation circuit A/D converter Timer (16-bit) Port P7 Internal peripheral function 51 P43 Port P0 8 8 52 P42 8 A-S700 Pin No. 1 2 3 4 5 6 7 8 Port Name Function Name P96/ANEX1 P95/ANEX0 P94 P93 P92/TB2in P91/TB1in P90/TB0in BYTE DEST1 DEST0 MOD1 MOD0 BYTE 9 CNVss MCU 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 P87/Xcin P86/Xcout /RESET Xout Vss Xin Vcc1 P85/NMI P84/INT2 P83/INT1 P82/INT0 P81 P80 P77 P76 P75/TA2in P74/TA2out P73/CTS2/RTS2/TA1in P72/CLK2/TA1out P71/RXD2/SCL2/TA0in P70/TXD2/SDA2/TA0out /CEEEP 31 P67/TXD1/SDA1 32 P66/RXD1/SCL1 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 P64/CTS1/RTS1/CTS0/CLKS1 P63/TXD0/SDA0 P62/RXD0/SCL0 P61/CLK0 P60/CTS0/RTS0 P57/RDY/CLKout P56 P55 P54 P53 P52 P51 P50 P47 P46 P45 P44 P43 P42 P41 P40 P37 /POMT /Z2MT XMPWR /ICXM DRXM DTXM DTEV TXDF CEEV RXDF CKEV CLKF BSY DTIS CEIS CKIS DTRZ CKRZ /EMP CER SCKR SDRR SDTR /CE CEP SCKP SDTP /TMU SDRP TUNED /ST LED_PHO Detail of Function O O O I I I I MCU Vss: when single chip mode is used Vss: when single chip mode is used CNVss Vcc: when flash writing is used O EEPROM CE O MCU Reset MCU Oscillator out MCU Ground MCU Oscillator in MCU Power supply, +5V I Connect to vcc because it is unused O Pre out mute O POWER indicator IRQ Power down detect O O O O O O O O SI SO SO SO O SO SO SO O SO Input selector Tx DATA O Input selector CE SO Input selector CLOCK O Rec selector DATA O Rec selector CLOCK O I For flash writing (LO) O O I O I For flash writing (HI) O O O O I+ I+ I+ O O Input indicators (PHONO) (Gnd) (Pull down) (Gnd) (Vcc) (Pull up) A-S700 33 P65/CLK1 /RESET Xout Vss Xin Vcc NMI /POMT LED_SP PDET I/O (Pull down) (Pull up) 27 A-S700 A-S700 Pin No. 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 28 Port Name P36 P35 P34 P33 P32 P31 Vcc2 P30 Vss P27 P26 P25 P24 P23 P22 P21 P20 P17 P16 P15 P14 P13 P12 P11 P10 P07 P06 P05 P04 P03 P02 P01 P00 P107/AN7/KI3 P106/AN6/KI2 P105/AN5/KI1 P104/AN4/KI0 P103/AN3 P102/AN2 P101/AN1 Avss P100/AN0 Vref Avcc P97/Adtrg Function Name LED_TU LED_CD LED_LN1 LED_LN2 LED_LN3 /SWMT Vcc /CDMT Vss MCU /MIMT PDon CDon PLED CLED PRY HPRY SPSW REM FBRY FARY VRup VRdn PRI /PSV /BLK ISA ISB REC PRV PRD THML THMR SPAB KEY1 Avss DEST Vref Avcc I/O O O O O O O MCU O MCU O I+ I+ O O O O O IRQ IRQ IRQ O O O O I O O O I I O O O AD AD AD AD AD AD AD MCU AD MCU MCU O Detail of Function Input indicators (TUNER) Input indicators (CD) Input indicators (LINE1) Input indicators (LINE2) Input indicators (LINE3) Power supply, +5V CD direct mute Ground Main IN mute Pure direct ON detect CD direct ON detect Pure direct indicator CD direct/Indicator Power relay (Vcc) (Gnd) Head phone relay Power ON/OFF key Remote control Speaker B relay Speaker A relay Volume up Volume down I protection Power save mode Input selector A Input selector B Rec selector PS protection DC protection THM L protection THM R protection Speakers A/B selector AD Ground (Gnd) AD reference AD power supply (Vcc) (Vcc) A B C D E F G H I J A-S700 ■ BLOCK DIAGRAM CD DIRECT IN CD DIRECT AMP SW801 ON RY103 R177,178 JK801 OPERATION POWER AMP MUTING Q804,805 19,22,25 8,9,12 C871,872 OFF • See page 46 → SCHEMATIC DIAGRAM PHONES HP RELAY MUTE CONTROL CD DIRECT ON RY101 2 A C119,120 ON 2,29 VIN 3,28 MUTE CONTROL MUTING Q815,816 • See page 46 → SCHEMATIC DIAGRAM 10,21 11dB ATT CD IC805 3 OFF PURE DIRECT SW802 ON B SPEAKER B RELAY IC802 TIN+ MIX IN TIN- PURE DIRECT ON OPERATION • See page 46 → SCHEMATIC DIAGRAM TONE CONTROL BALANCE LOUDNESS TOUT • See page 47 → SCHEMATIC DIAGRAM MAIN MUTING Q802,803 VR801-804 MUTE CONTROL POWER TRANSFORMER 5,26 LINE1 SPEAKERS C121,122 OFF IC505 F252 RY251 IC506 IMPEDANCE SELECTOR HIGH/LOW ACH SW101 4,27 AC IN 4 REC OUT SELECTOR BD3841FS IC502 25,26 REC A 1,2 INA INB 3,4 INC 5,6 IND 7,8 INE 9,10 INF 11,12 ING 13,14 LINE1 23,24 REC B LINE2 C143 C144 11,20 +B ACL G –B ACH SW101 D114 ACL –22V Q102 –VP D110 + IC508 C803 LINE3 PB ACL F251/J252 IC507 TE251 LINE2 PB REC OUT INPUT SPEAKER A RELAY RY102 ON VOLUME VR805 7,24 TUNER VOUT SWITCH NJU7313AM IC501 PHONO EQ IC804 PHONO OPERATION PDOUT IC801 OFF D120 1 G POWER INDICATOR D810 75 76 77 19 VOLUME UP/DOWN IC806 78,79 INPUT SELECTOR SW803 84,85 M30302 IC602 HP RELAY SPEAKER B RELAY SPEAKER A RELAY MUTE CONTROL 81 POWER SAVE 67 POWER DETECTOR /RESET IC251,252,253 Q254 PURE DIRECT ON CD DIRECT ON D605 +5BU T251 INPUT INDICATORS D801-809 55-60 15 13 XL601 16MHz 7 s10 94 C261 SPEAKER OFF/A/B SW804 D116-119 C160 POWER RELAY 18,63,65 66 89 C161 /RESET DETECT –LB 72 74 G ACL2 70 MICROPROCESSOR REC OUT SW805 R172 12 20 POWER THMR IC102 93 THML IC101 PRD 92 91 PRV R227 D275 Q252 RY251 POWER SW SW806 +LB D259 IR REMOTE U801 6 PRI OPERATION • See page 46 → SCHEMATIC DIAGRAM 80 5 ACL2 • See page 45 → SCHEMATIC DIAGRAM 90 FUNCTION R171 +5.5V IC601 D604 +5M D603 Q605 +5S G POWER RELAY POWER SAVE 29 A B C D E F G H I A-S700 ■ PRINTED CIRCUIT BOARDS 1 FUNCTION (1) P.C.B. (Side A) FUNCTION (2) CB502 L/R L/R LINE1 L/R L/R 5 TUNER INPUT PB 4 L/R LINE2 REC PB LINE3 3 (CB602) L/R REC CB501 TUR TUL SELE CDR CDL SELE PHR PHL +15 SELR -15 SELL FUNCTION (2) MTZ2 CKEV CEEV DTEV DTRZ CKRZ CKIS CEIS DTIS MTSW MTPO TRIG MG RM2RM2+ RM1RM1+ (CB603) 2 6 • Semiconductor Location Ref no. Location Q505 E4 Q506 E4 7 30 J A B C D E F G H I J A-S700 1 FUNCTION (1) P.C.B. (Side B) 2 3 4 1 32 IC508 5 17 30 8 16 IC502 IC501 1 4 4 1 16 1 15 IC507 5 8 4 1 IC506 5 8 4 1 IC505 5 8 5 6 7 • Semiconductor Location Ref no. Location D503 E4 D504 E4 IC501 G4 IC502 F4 IC505 D5 IC506 D4 IC507 D4 IC508 D3 31 A B C D E F G H I J A-S700 1 FUNCTION (2) P.C.B. (Side A) OPERATION (1) OPERATION (1) (CB803) MG RM1- 3 RM2KEY1 REC ISB /BLK SPSW ZPSW VRup PLED RM1+ PDon RM2+ MG MTCD +15 CDDR -15 CDDL E CDR E CDL E PHR E PHL CB607 (CB801) VRdn CLED CDon MTMI DTFD CB606 CKFD W601 OPERATION (1) +5S (CB816) CB611 +5M OPERATION (10) +15 SELR -15 SELL SELE CDDR SELE CDDL (CB802) 2 CEFD KEY0 N.C. ISA REM MPSW IC601 VOUT VIN GND CB609 4 CB610 CB605 (CB284) FUNCTION (1) (CB501) PRV LED_LN3 LED_LN2 LED_LN1 LED_CD LED_TU LED_PHO NC (CB502) CB603 MTZ2 CKEV CEEV DTEV DTRZ CKRZ CKIS CEIS DTIS MTSW MTPO TRIG MG RM2RM2+ RM1RM1+ FUNCTION (1) SELL -15 SELR +15 PHL PHR SELE CDL CDR SELE TUL TUR PRV THMR THML FARY PRD MG +5M FBRY PRI HPRY MAIN (4) /RES PRY 5 PDET S10 CB602 OPERATION (4) (W803) 6 • Semiconductor Location Ref no. Location IC601 B4 Q605 C3 7 32 A B C D E F G H I J A-S700 1 FUNCTION (2) P.C.B. (Side B) 2 3 81 80 IC 2 60 100 1 51 50 4 A 30 31 5 POINT A XL601 (Pin 13 of IC602) 6 7 • Semiconductor Location Ref no. Location D601 C4 D602 C4 D603 B4 D604 C4 D605 C4 D606 C4 D607 C4 IC602 E4 Q601 F3 Q602 F3 Q606 C3 33 A B C D E F G H I J A-S700 1 OPERATION (1) P.C.B. (Side A) 2 PURE DIRECT CD DIRECT AMP 3 CB808 MAIN (1) (CB103) CB804 OPERATION (4) 7 34 (W802) FUNCTION (2) (CB606) SP_LED /POMT REM NC FUNCTION (2) SPSW NC ISA ISB NC NC SPAB REC NC NC NC NC NC +5S TOL E TOR +15TC -15TC NC (CB805) MG OPERATION (11) OPERATION (2) (W601) (W804) 6 CB802 CDDL SELE CDDR SELE SELL -15 SELR +15 +LB CDon MTMI MG PDon VRdn CLED VRup (CB611) MG ISB ISA PLED CLED +5S CB807 CB801 FUNCTION (2) TIL+ TILE TIRTIR+ +5M W814 5 CB806 VRup VRdn -15 VRG E VIR E VOR E VOL E VIL OPERATION (5) (W806) PLED (CB809) CB803 W801 OPERATION (9) 4 VRG E L E R E -15 +15 +LB +5M +15 +5S SP_LED REM SPAB REC MG SPSW A B C D E F G H I J A-S700 1 OPERATION (1) P.C.B. (Side B) 2 4 3 1 IC801 5 4 8 1 IC802 5 8 4 5 6 • Semiconductor Location Ref no. Location IC801 G3 IC802 C4 Q801 C5 Q802 C4 Q803 C4 Q804 B3 Q805 B3 7 35 A B C D E F G H I J A-S700 1 OPERATION (2) P.C.B. (Side A) OPERATION (3) P.C.B. (Side A) OPERATION (4) P.C.B. (Side A) VOLUME LOUDNESS 2 INPUT indicators 3 FUNCTION (2) (CB609) CD LINE1 W803 NC LED_AUX LED_MD LED_TAPE LED_CD LED_TU LED_PHO NC LINE2 TUNER PHONO LINE3 TOL E TOR +15TC -15TC OPERATION (1) (W805B) (CB804) OPERATION (9) 5 (CB811) CB812 OPERATION (11) VRup VRdn +15 VRG E VIR E VOR E VOL E VIL IC806 10 1 W804 PURE DIRECT indicator MG ISB ISA PLED CLED +5S W802 4 INPUT W805A BALL TREL LOL E LOR TRER BALR +15TC -15TC M + OPERATION (1) (CB807) 6 • Semiconductor Location Ref no. Location D801 I3 D802 J5 D803 I3 D804 I5 D805 I3 D806 I3 D807 J3 D809 J3 IC806 F4 7 36 CD DIRECT AMP indicator A B C D E F G H I J A-S700 1 OPERATION (2) P.C.B. (Side B) OPERATION (3) P.C.B. (Side B) OPERATION (4) P.C.B. (Side B) 2 3 4 5 6 7 • Semiconductor Location Ref no. Location D808 F4 Q806 H3 Q807 J4 Q808 I3 Q809 I4 Q810 I3 Q811 I3 Q812 I3 Q813 J3 37 A B C D E F G H I A-S700 1 OPERATION (5) P.C.B. (Side A) OPERATION (6) P.C.B. (Side A) OPERATION (7) P.C.B. (Side A) +15 +5M SP_LED REM MG (CB808) SPSW MG REC SPAB REM SP_LED +5S +15 +5M OPERATION (1) 2 +15 +5M SP_LED REM MG POWER ON/STANDBY OFF CB813 W806 W808 +5M SPSW CB814 3 CB815 POWER indicator SPSW +5M REC OUT SPEAKERS 4 OPERATION (8) P.C.B. (Side A) W811 OPERATION (9) P.C.B. 5 F1 F2 HPL HPE HPR -VP (Side A) OPERATION (1) OPERATION (3) (CB806) (CB812) MAIN (4) (CB283) 7 PHONES 38 CB809 JK801 CB811 6 VRup VRdn -15 VRG E VIR E VOR E VOL E VIL VRup VRdn -15 VRG E VIR E VOR E VOL E VIL • Semiconductor Location Ref no. Location F3 D810 J A B C D E F G H I J A-S700 1 OPERATION (5) P.C.B. (Side B) OPERATION (6) P.C.B. (Side B) OPERATION (7) P.C.B. (Side B) 2 3 4 OPERATION (8) P.C.B. (Side B) OPERATION (9) P.C.B. (Side B) 5 • Semiconductor Location Ref no. Location F3 D811 D812 Q814 F3 E3 6 7 39 A B C D E F G H A-S700 1 OPERATION (10) P.C.B. (Side A) PHL E PHR E CDL E CDR E CDDL -15 CDDR +15 MTCD FUNCTION (2) 2 (CB607) PHONO L/R CD L/R INPUT CB816 3 4 BASS -/+ TREBLE -/+ BALANCE L/R OPERATION (11) P.C.B. (Side A) 5 6 W805B (W814) CB805 OPERATION (1) TIL+ TILE TIRTIR+ BALL TREL LOL E LOR TRER BALR +15TC -15TC 7 OPERATION (2) (W805A) 40 I J A B C D E F G H I J A-S700 1 OPERATION (10) P.C.B. (Side B) 2 4 1 IC804 5 8 3 4 1 IC805 5 8 4 OPERATION (11) P.C.B. (Side B) 5 • Semiconductor Location Ref no. Location F6 IC803 6 4 1 IC803 5 8 IC804 IC805 Q815 Q816 D2 F3 G4 G4 7 41 A B C D E F G H I J A-S700 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 positions 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, perform discharge by connecting a discharge resistor (5kohms/10W) between terminals at following positions. The time required for discharging is about 30 seconds. 1. C141 on MAIN (1) P.C.B.. 2. C142 on MAIN (1) P.C.B.. 1 OUT VCC MAIN (6) P.C.B. (Side A) GND MAIN (1) P.C.B. (Side A) IC101 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。 ・ 下記箇所には電源を 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(5 k Ω /10 W)を下記箇所の端子間に接続して放電してください。 放電所用時間は約 30 秒間です。 1. MAIN(1)P.C.B. の C141 2. MAIN(1)P.C.B. の C142 CB101 # Q122A # Q124A # Q122C 10 W # 5 k-ohms 2 Q124C CB103 VRG E L E R E -15 +15 +LB A, G, L models • Semiconductor Location Ref no. Location Ref no. Location C3 D101 B4 Q112 3 + OPERATION (1) + L - 4 A/B SPEAKERS - R (W801) W101 5 A, G, L models W102 # Q121C # Q123C # Note) Those parts marked with “#” are not included in the P.C.B. ass’y. (マーク#の部品は、基板に含まれません。 ) 10 W # Q121A 5 k-ohms Q123A MAIN (7) P.C.B. (Side A) VCC CB132 OUT GND 6 IC102 MAIN (4) (CB282) B3 C4 C3 C4 C3 F4 F3 B6 G5 G3 G5 G5 G6 G6 H6 B6 B6 B5 D2 D6 B5 B4 B4 B4 B4 B4 B3 B4 B3 C4 S10 PRY MG PDET +5M /RES PRDC PRI FBRY FARY PRV -LB E E +LB -VP RYHP +LB E -LB E PRV THMR THML MG HPL HPE HPR CB102 IMPEDANCE SELECTOR LOW/HIGH CB128 D102 D103 D104 D105 D106 D107 D108 D109 D111 D112 D116 D117 D118 D119 D120 D121 D122 D262 IC101 IC102 Q101 Q103 Q104 Q105 Q106 Q107 Q108 Q109 Q110 Q111 MAIN (4) (CB281) MAIN (3) (CB272) 42 ACH ACL ACH E ACL ACL2 S10 PRY MG PDET +5M /RES CB106 7 ACL2 W104 POWER TRANSFORMER Q113 Q114 Q115 Q116 Q117 Q118 Q119A Q119C Q120A Q120C Q121 Q121A Q121C Q122A Q122C Q123A Q123C Q124A Q124C Q125 Q126 Q127 Q128 Q129 Q130 Q131 Q132 Q133 Q255 Q256 B4 B3 B4 B3 D5 D3 D5 D5 D3 D3 B5 D5 E5 C3 E3 C5 E5 D3 E3 C4 C4 F5 F3 F5 B6 B6 H5 G3 G3 H5 A B C D E F G H I J A-S700 1 MAIN (2) P.C.B. (Side A) MAIN (3) P.C.B. (Side A) MAIN (5) P.C.B. (Side A) R, L models POWER TRANSFORMER POWER TRANSFORMER MAIN (5) (W291A)(W291B) R model CB294 2 CB293 W291B CB256 1 CB255 VOLTAGE SELECTOR 2 230-240V 220V 110V 120V CB254 8 CB271 7 YE 14 IC252 CB253 U, G models U, R, T, K, A, B, L models VI WH CB291 CB257 CB252 L model AC OUTLETS 3 SUBAC SUBAC S10 PRY E DET +5M OR 1-2/5-6 2-3/6-7 3-4/7-8 4-5/8-1 B POINT B VOLTAGE SELECTOR 1 / Pin5, 2 / Pin6 of CB272 BE W291A 1 BE CB292 IC253 IC251 GY MAIN (8) +5M 1 RE (W295A)(W295B) WH CB252 /RES 2 4 U, K models R, T, K, A, B, G, L, J models MAIN (1) POWER TRANSFORMER S10 PRY E PDET +5M /RES SUBAC SUBAC S10 PRY E DET +5M CB258 POWER cable ON POWER cable OFF (W104) +5M 1 5 /RES 2 MAIN (4) P.C.B. (Side A) MAIN (8) P.C.B. (Side A) POWER cable ON MAIN (5) CB281 CB282 6 (W291A)(W291B) BE HPRY +LB E -LB E PRV THMR THML MG HPL HPE HPR (CB132) WH (CB128) S10 PRY MG PDET +5M /RES PRDC PRI FBRY FARY PRV -LB E E +LB -VP MAIN (1) MAIN (1) W295A W295B • Semiconductor Location Ref no. Location Ref no. Location D3 E3 D133 D274 FUNCTION (2) 7 (CB605) THMR PRV FBRY PRD +5M MG S10 CB283 CB285 FL2 FL1 -VP HPR HPE HPL FL1 FL2 THML HPRY FARY PRI /RES PDET PRY CB284 OPERATION (8) (W811) POWER TRANSFORMER D254 D255 D258 D259 D260 D271 D272 D273 D4 C3 C4 C3 C4 E3 E3 E3 D275 IC251 IC252 IC253 Q252 Q254 Q271 Q272 E3 C4 C3 D4 C4 C3 E3 AC IN E3 43 A-S700 ■ PIN CONNECTION DIAGRAMS • ICs • Transistors BD3841FS LB1641 2N5401C-AT M30302MAP-A95FP LM61CIZ 80 2SA1037K 2SD1938F 1 2SK3850 2SA1145 2SC2705 D C 10 32 +VS VOUT GND 1 OP275GSR NJU7313AM G E 100 31 B 1 NJM2068MD-TE2 2SA970 2SA1015-Y (TPE2,F) 50 81 16 2N5551C-AT 51 S-812C55AY-T-G 30 TC4013BP E CE B E CB S B CB 2SA1694 O,P,Y 2SC4467 O,P,Y 2SA1358 O,Y 2SC3421 O,Y D CE 2SC1815 2SA1708 14 8 4 7 8 28 1 4 14 1 1 3 2 E 1 1 B CB 2SD1915F 2SD2375 Q,P C E B E E DTC144ESA-TP DTC144EKA CB KRA102M-AT/P 3 • Diodes 1 1SR139 1SR400 1SS133 1SS176 1SS270A MTZJ3.0A MTZJ6.2B MTZJ6.8B MTZJ9.1B MTZJ10B MTZJ16A MTZJ22B 1SS355 1SS380 MA8051 5.1V MA8051-M MA8075-H 7.7V Anode Anode Cathode Cathode S1NB20 1A 200V S1NB60 1.0A 600V 1T2 AC – + AC AC Cathode S5VB20 2 + – B Anode AC 44 C 4 1 3 Anode Cathode E CE CB 2 1: GND 2: IN 3: OUT 1 2 1: GND 2: OUT 3: IN 3 E CB B A C D E F G H I J K L M N A-S700 SCHEMATIC DIAGRAMS FUNCTION Page 47 Page 46 C1 B3 0 13.5 0 IC505 INPUT 0 0 0 0 0 0 IC506 IC501 Page 46 0 B4 0 13.5 IC501 0 0 0 4 IC506 0 0 -13.3 0 CB606 POINT A XL601 (Pin 13 of IC602) CB611 IC601 0 0 0 CD IN 0 0 -13.3 0 Page 46 IC505 to OPERATION (1)_CB802 3 0 0 0 0 to OPERATION (1)_CB801 TUNER IN M5 to OPERATION (10)_CB816 CB605 2 Page 46 B8 to OPERATION (1)_CB803 to MAIN (1)_CB284 CB607 1 9.8 5.6 5.6 4.9 4.9 4.8 4.2 0 5.0 5.6 4.8 5.0 0 5.6 0 4.7 W601 0 0 0 0 0 0 0 0 13.5 IC507 SWITCH 0 CB502 CB602 0 0 0 0 0 4.7 0 0 0 4.8 0 0 4.9 4.9 0 4.9 4.8 0 4.8 5.1 0.2 4.9 4.8 0.2 LINE 2 0 5.0 -13.3 0 0 0 0 0 0 0 0 -7.1 IC502 0 0 13.5 0 0 0 0 0 2.4 IC508 G6 to OPERATION (4)_W803 IC602 0 2.1 1.6 0 IC508 Page 46 MICROPROCESSOR 1.1 0 0 0 0 0 0 0 0 0 1.1 0 3.7 0 0 0 0 0 0 0 -13.3 CB501 4.9 CB603 0 A 0 0 REC OUT SELECTOR 4.8 0 4.8 5.0 0 -14.9 0 0 7 4.8 4.8 0 0 0 0 IC501 0 0 1.6 0 2.1 0 15.2 LINE 3 4.8 4.8 0 2.3 0 0 0 6 0 4.8 0 7.1 0 0 0 0 CB609 0 0 2.4 0 4.7 0 5 0 4.9 IC507 0 0 4.9 4.8 -14.7 15.2 7.1 7.8 4.9 7.8 4.8 4.8 0 0 CB610 -7.8 -7.8 -7.1 -14.9 FUNCTION (1) 8 FUNCTION (2) IC602: M30302MAP-A95FP Single-chip 16-bit CMOS microprocessor L3 4 25 R3 L4 5 24 R4 Port P2 Port P3 Port P4 Port P5 Port P6 CL DA VEE BIAS VCC RECA1 RECA2 RECB1 RECB2 RECC1 RECC2 OUT1 OUT2 INI1 INI2 30 29 28 27 26 25 24 23 22 21 20 19 18 17 IC505-508: NJM2068MD-TE2 Dual operational amplifier 23 R-COM1 21 R6 + – + – VIN 2 OUT1 1 –IN1 2 +IN1 3 + – + – 7 OUT2 M16C/60 series 16-bit Microprocessor core 6 -IN2 F-SW2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 V DD 28 15 CK INA2 INB1 INB2 INC1 INC2 IND1 IND2 INE1 INE2 INF1 INF2 ING1 ING2 INH1 INH2 V EE 1 14 Vss CONTROL * 4 5 +IN2 VSS 1 (15-bits) F-SW1: INPUT FUNCTION 1 F-SW2: INPUT FUNCTION 2 (2-channels) Memory ROM Watchdog timer DMAC 16 DATA INA1 ST 13 –VCC CRC arithmetic circuit (CCITT) (Polynomial : X 16+X12+X5+1) 3 VOUT 8 +VCC Vref F-SW1 17 R-COM3 UART or clock synchronous serial I/O R0H R1H R0L R1L R2 R3 SB USP RAM 8 18 R8 L-COM3 12 X IN-XOUT XCIN-XCOUT 8 10 18-channels) (3-channels) 19 R7 L8 11 Input (timer B): 3 LOGIC 20 R-COM2 L7 10 X Output (timer A): 3 IC601: S-812C55AY-T-G Voltage regulator 22 R5 + – L-COM2 9 System clock generation circuit A/D converter (10-bits Port P8 DGND 31 + – LATCH LEVEL SHIFTER L6 8 32 Timer (16-bit) 7 L5 7 LATCH L-COM1 6 LEVEL SHIFTER Internal peripheral function Port P7 26 R2 Port P1 Port P8_5 L2 3 Port P0 IC502: BD3841FS Function switch 8 8 Port P9 27 R1 8 8 8 L1 2 8 Port P10 9 8 8 IC501: NJU7313AM Analog function switch ISP INTB A0 A1 A1 FB FB PC FLG Multiplier 45 B A C D E F G H I J K L M N A-S700 OPERATION 1 CD DIRECT AMP 2 W801 Page 47 OPERATION (11) OPERATION (2) B7 G3 Page 45 3 to FUNCTION (2)_CB611 to MAIN (1)_CB103 PD IN 0 CB801 -14.7 TONE IN 0 0 14.7 VOL OUT (CD DIRECT) 0 OUT L VOL IN IC803 0 -14.7 0 0 W805A W805B TONE OUT W802 CB804 F4 CD IN to OPERATION (1)_W814 G4 Page 45 to FUNCTION (2)_W601 TONE IN TONE IN (PURE DIRECT) 13.0 0 0 0 IC803 -14.5 LOUDNESS 0 TREBLE 0 BASS 0 L3 to OPERATION (11)_CB805 CB802 TUNER IN 4 CB805 BALANCE W814 OPERATION (3) OPERATION (9) VOLUME VOL OUT 14.7 0 CB812 CB806 IC804 0 0 0 0 0.6 -13.2 0.4 0 PURE DIRECT IC806 0 0 1.8 0 14.7 5 14.7 0.8 0.6 CB809 Page 45 CB811 VOLUME MIX IN 0 TUNER -14.5 LINE3 4.8 4.8 3.3 3.4 IC802 LINE2 4.8 4.8 4.8 4.8 0 INPUT indicators CD LINE1 3.0 IC804 0 0 -14.5 14.7 0 3.4 3.4 3.4 INPUT IC802 0 PHONO 6 to FUNCTION (2)_CB607 0 14.7 0 K2 IC805 CB816 0 0 0 CD IN 3.3 3.4 IC802 0 0 0 3.4 3.4 0 0 4.7 0 3.4 0.8 0 0 W803 -14.7 0 0 0 0 0 0 0 0 0.8 TONE OUT Page 45 0 -14.7 0 M5 0 to FUNCTION (2)_CB609 0 0 0 4.8 CD DIRECT AMP indicator 3.4 W804 -14.5 3.4 3.4 CB807 7 IC805 PURE DIRECT indicator 4.8 3.4 0 0 4.8 -14.7 4.7 0 OPERATION (10) 0 Page 47 INPUT selector B2 to MAIN (4)_CB283 OPERATION (4) 2.1 15.1 0.2 IC801, 805: OP275GSR Dual bipolar/JFET, audio operational amplifier JK801 14.4 SPEAKERS OUT A 1 8 V+ -IN A 2 5.0 W808 8 4.4 7 OUT B +IN A 3 CB813 PHONES 0.2 6 -IN B V- 4 5 +IN B to FUNCTION (2)_CB606 0 W811 IC802-804: NJM2068MD-TE2 Dual operational amplifier W806 0 REC OUT 4.7 CB808 5.0 Page 45 I2 4.7 OPERATION (8) 8 +VCC OUT1 1 –IN1 2 +IN1 3 6 -IN2 –VCC 4 5 +IN2 + – 7 OUT2 + – 9 OUT 2 P2 3 2 8 10 9 VCC 1 VCC 2 OPERATION (6) CB815 OUT 1 OPERATION (1) P1 IC806: LB1641 Motor driver CB803 7 PRE DRIVER CB814 POWER 4 VZ 6 IN 2 OPERATION (5) 10 OPERATION (7) IN 1 5 GND 1 46 INPUT LOGIC B A C D E F G H I J K L M N A-S700 MAIN Page 46 Page 45 K8 H2 To POWER TRANSFORMER to FUNCTION (2)_CB605 CB283 CB284 to OPERATION (8)_W811 CB285 1 MAIN (4) WJ36180 WJ36180 WJ36180 WJ36180 WJ36180 WE10290 WE10290 WE10290 WE10290 WE10290 WJ36180 WJ36180 WE10290 WE10290 CB128 MAIN (6) CB101 IMPEDANCE SELECTOR HIGH/LOW W101 IC101 6.0 CB106 1.0 0 AC84.8 20.8 CB102 W102 20.8 20.8 0 0 20.8 20.8 15.2 6.0 0.7 0 15.7 1.0 0 0 # 20.7 (46.8) 58.3 -20.8 0 AC32.3 0 0 0 20.7 AC68.1 0 0 20.8 IC102 5 k-ohms 10 W -20.8 0.7 0 -58.2 (-46.7) 15.7 0 4 MAIN (7) 20.7 20.7 -20.8 -6.5 -20.8 To POWER TRANSFORMER 3 W104 W103 CB281 2 WJ61060 WE10290 IC101, 102: LM61CIZ Temperature sensor -15.5 -16.2 5 k-ohms 10 W -15.5 -20.8 -14.9 MAIN (5) R, L models 58.3 5 58.3 58.1 57.7 4.9 58.3 57.7 57.1 0.6 57.1 VOLTAGE SELECTOR 58.3 0 1.1 0.6 4.7 0 57.1 1.1 58.3 # 4.7 0.6 57.9 0 0 0.2 0 -0.4 OUT L 4.7 4.9 0 0.6 1.1 CB272 0 0 0 -1.0 0 0 0 1 0.6 0.6 VOLTAGE SELECTOR CB293 CB294 CB271 57.7 230-240V 220V 110V 120V W291B 0 2 4.4 CB292 6 CB291 B W291A -57.1 -57.2 1-2/5-6 2-3/6-7 3-4/7-8 4-5/8-1 9.7 -57.1 0 -1.0 -56.6 0 AC IN -58.3 -57.2 -0.5 -57.2 -57.2 -57.1 -58.3 # to OPERATION (1)_W801 -57.8 To POWER TRANSFORMER CB252 CB257 0 SPEAKERS F2 Page 46 7 AC OUTLETS CB253 CB254 CB255 0 -57.8 CB103 CB256 IC252: TC4013BP Dual D-type flip flop -57.8 -57.1 -57.2 0 -57.1 -57.2 -58.2 (23.1) -57.2 -57.2 -56.6 -58.2 -56.6 SET1 6 (~) -58.2 1 Q1 (0) 0 (~) -0.5 -0.5 RESET1 4 (23.1) (5.9) -0.5 -1.0 -1.0 -57.2 MAIN (8) 0 -57.1 -57.8 DATA1 5 (7.4) -57.1 2 Q1 (0) CL (1.0) (7.4) -57.2 (1.0) (3.5) (0.4) -57.1 (3.9) 0 0 -57.7 0 -57.7 -1.0 (0) (3.9) 0 0 -57.7 1.1 (0) (0) (0) (0) 57.1 58.2 57.1 13 Q2 12 Q2 CL CL IC253 1.0 0.9 9.7 CLOCK2 11 CL CL CL 57.9 (0) VSS 7 0 VDD 14 0 58.2 0 9.7 1.1 0.8 57.1 57.7 SET2 8 CL 0.6 57.7 CL RESET2 10 (0) Primary ground 0.6 1.1 (0) DATA2 9 (5.7) -0.4 0.6 (0) (5.7) CL CL AC8.1 (0) 0 1.1 CLOCK1 3 IC252 CB258 (5.9) 0.2 IC251 CL CL 0 8 W295B -57.2 To POWER TRANSFORMER 4.4 -58.3 -1.0 -56.6 0 MAIN (3) -0.5 -0.5 W295A -57.2 58.2 0 MAIN (1) Q1 1 14 VDD Q1 2 13 Q2 CK1 3 12 Q2 RESET1 4 11 DATA1 5 10 RESET2 SET1 6 9 DATA2 Vss 7 8 SET2 57.7 58.2 9 Note) Those parts marked with “#” are not included in the P.C.B. ass’y. (マーク#の部品は、基板に含まれません。) MAIN (2) POINT B 1 / Pin5, 2 / Pin6 of CB272 10 +5M 1 +5M 1 /RES 2 /RES 2 POWER cable ON POWER cable OFF Safety measures • Some internal parts in this produ
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- 日本語: Yamaha A-S700 BL